A sonar system and method for measuring relative velocity between a transducer and a scattering surface or volume is disclosed. The system utilizes phased array or piston transducers that project acoustic beams in different directions. Each projection consists of multiple sub-waveforms of different center frequencies that are either frequency steered into different directions such that the acoustic beams ensonify different scatterers or sufficiently separated in frequency to obtain independent estimates of velocity. Each received return signal is used to estimate an independent relative velocity between the transducer and scatterers, and the estimated velocities are averaged to reduce the single-ping standard deviation of the velocity error. Different lags may be used in the different sub-waveforms, wherein shorter lags are used to ambiguity resolve longer lags such that the system ambiguity velocity is sufficiently high, and the single-ping variance decreases below what would be possible when only using a short lag.
G01S 15/58 - Velocity or trajectory determination systemsSense-of-movement determination systems
G01S 15/60 - Velocity or trajectory determination systemsSense-of-movement determination systems wherein the transmitter and receiver are mounted on the moving object, e.g. for determining ground speed, drift angle, ground track
2.
3D Heterogeneously Integrated Power Electronic Building Blocks
A power converter comprising a substrate, a control circuit disposed on the substrate; and a first circuit stack disposed on the substrate and coupled to the control circuit. The first circuit stack is in a stacked configuration. The first circuit stack comprises a first switch layer, a first interposer layer electrically coupled to the first switch layer, a second interposer layer electrically coupled to the first interposer layer, a first gate drive layer disposed between and electrically coupled to the first interposer layer and the second interposer layer, and a first inductor layer electrically coupled to the first gate drive layer.
A power converter comprising a substrate, a control circuit disposed on the substrate; and a first circuit stack disposed on the substrate and coupled to the control circuit. The first circuit stack is in a stacked configuration. The first circuit stack comprises a first switch layer, a first interposer layer electrically coupled to the first switch layer, a second interposer layer electrically coupled to the first interposer layer, a first gate drive layer disposed between and electrically coupled to the first interposer layer and the second interposer layer, and a first inductor layer electrically coupled to the first gate drive layer.
H02M 3/00 - Conversion of DC power input into DC power output
H02M 3/158 - Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load
H01L 25/16 - Assemblies consisting of a plurality of individual semiconductor or other solid-state devices the devices being of types provided for in two or more different subclasses of , , , , or , e.g. forming hybrid circuits
4.
METHOD OF RECOVERING HGCDTE DETECTOR PERFORMANCE AFTER HIGH TEMPERATURE BIAS-INDUCED DEFECT GENERATION
A method of baking a detector, the method comprising: placing a mid-wave infrared detector in an environmental chamber, wherein the environmental chamber is opaque. The mid-wave infrared detector comprises an anode, a guard terminal, and a cathode. The method further comprising connecting the anode to the cathode in a short circuit configuration, heating the environmental chamber to a bake temperature selected in the range of 60 to 70 degrees Celsius, and maintaining the detector in the environmental chamber for a period selected in the range of 72 hours to 240 hours.
A high electron mobility transistor comprising a substrate. The substrate comprising: a buffer layer, a channel layer disposed on the buffer layer, an interlayer disposed on the channel layer, a spacer layer, and a first barrier layer between the spacer layer and a cap layer, the spacer layer is between the interlayer and the first barrier layer. The high electron mobility transistor comprises a source electrode disposed on the channel, a drain electrode disposed on the channel, and a gate electrode disposed between the source electrode and the drain electrode, the gate electrode defining a longitudinal portion extending through the capping layer, wherein a distal end of the longitudinal portion is in contact with the first barrier layer defines an external fillet between the distal end and the longitudinal portion.
H01L 29/20 - Semiconductor bodies characterised by the materials of which they are formed including, apart from doping materials or other impurities, only AIIIBV compounds
H01L 29/24 - Semiconductor bodies characterised by the materials of which they are formed including, apart from doping materials or other impurities, only inorganic semiconductor materials not provided for in groups , , or
H01L 29/423 - Electrodes characterised by their shape, relative sizes or dispositions not carrying the current to be rectified, amplified or switched
A coating comprising a first dielectric overlayer, a first dielectric underlayer, a continuous thermochromic layer disposed between the first dielectric overlayer and the first dielectric underlayer, and a metal layer disposed below the first dielectric underlayer.
A receiver comprising a magnitude correction circuit to receive an electrical signal defined by a phase. The electrical signal is a combined electrical signal comprising a first signal and a second signal. The magnitude correction circuit comprising a detector to generate a control signal proportional to received power of the second signal and an error amplifier coupled to the detector to compare a reference voltage against an output of the detector to determine an amplification or attenuation of the second signal based on a drift of the electrical signal. The receiver further comprising a variable gain amplifier coupled to the magnitude correction circuit to generate a compensated electrical signal based on the amplification or attenuation of the second signal determined by the magnitude correction circuit and a de-modulating mixer coupled to the magnitude correction circuit, the de-modulating mixer to mix a phase compensated signal and the compensated electrical signal.
Laterally-gated transistors and lateral Schottky diodes are disclosed. The FET includes a substrate, source and drain electrodes, channel, a gate electrode structure, and a dielectric layer. The gate electrode structure includes an electrode in contact with the channel and a lateral field plate adjacent to the electrode. The dielectric layer is disposed between the lateral field plate and the channel. The lateral field plate contacts the dielectric layer and to modulate an electric field proximal to the gate electrode proximal to the drain or source electrodes. Also disclosed is a gate electrode structure with lateral field plates symmetrically disposed relative to the gate electrode. Also disclosed in a substrate with dielectric structures buried in the substrate remote from the gate electrode structure. A lateral Schottky diode having an anode structure includes an anode (A), cathodes (C) and lateral field plates located between the anode and the cathodes.
Disclosed is a diver's voice communication system which utilizes AI speech recognition, speech-to-text conversion with the ability to adapt to diver speech distortion resulting from hyperbaric helium-oxygen conditions and text transmission using underwater acoustic digital communication. Additionally, the communication system provides the ability to use speech commands in a digital form to control underwater autonomous devices. Further, the digital communication system provides the ability to track and communicate with a large number of divers or with select divers from a large group.
H04B 11/00 - Transmission systems employing ultrasonic, sonic or infrasonic waves
H04B 13/02 - Transmission systems in which the medium consists of the earth or a large mass of water thereon, e.g. earth telegraphy
H04Q 9/00 - Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom
Techniques for facilitating light signal assessment receiver systems and methods are provided. In one example, a light signal assessment device includes a light signal detection device including a filter array, a detector array, and a measurement device. The filter array is configured to filter a light signal incident on the filter array. The detector array is configured to receive the filtered light signal and generate a light signal detection image based on the filtered light signal. The measurement device is configured to determine a characteristic associated with the light signal based on the light signal detection image. The assessment device further includes a logic device configured to generate an output based on the characteristic. Related methods and systems are also provided.
Techniques for facilitating light signal assessment receiver systems and methods are provided. In one example, a light signal assessment device includes a light signal detection device including a filter array, a detector array, and a measurement device. The filter array is configured to filter a light signal incident on the filter array. The detector array is configured to receive the filtered light signal and generate a light signal detection image based on the filtered light signal. The measurement device is configured to determine a characteristic associated with the light signal based on the light signal detection image. The assessment device further includes a logic device configured to generate an output based on the characteristic. Related methods and systems are also provided.
A fuel cell fluid discharge system, a fuel cell system, and a method for discharging byproducts produced during fuel cell operation are provided. The fluid discharge system comprises an inlet port, a discharge port, and a vessel. The vessel comprises a vessel port and an adjustable wall. The adjustable wall forms a fluid tight seal between a first volume within the vessel partially bounded by a first side of the adjustable wall, and a second volume of the vessel partially bounded by a second side of the adjustable wall. Moving the adjustable wall from a second position to a first position draws fluid through the inlet port into the first volume. Moving the adjustable wall from the first position to the second position expels fluid through the discharge port from the first volume at a pressure greater than a reactant pressure of the fuel cell.
H01M 8/04119 - Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyteHumidifying or dehumidifying
H01M 8/04082 - Arrangements for control of reactant parameters, e.g. pressure or concentration
14.
VESSEL FOR A FUEL CELL, A FUEL CELL SYSTEM, AND A METHOD FOR MAINTAINING A NON-EXPLOSIVE ATMOSPHERE IN A VESSEL FOR A FUEL CELL
The present disclosure relates to a vessel for a fuel cell, a fuel cell system, and a method for maintaining a non-explosive atmosphere in a cavity of a vessel for a fuel cell. The vessel comprises a wall defining a cavity, and a catalyst. The cavity comprises a non-explosive atmosphere comprising predominantly hydrogen gas or predominantly oxygen gas. The cavity is configured to receive the fuel cell. The catalyst is in contact with the non-explosive atmosphere in the cavity and the catalyst is configured to convert hydrogen gas and oxygen gas into water.
H01M 8/04119 - Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyteHumidifying or dehumidifying
H01M 8/04955 - Shut-off or shut-down of fuel cells
A method for detecting a Direct Memory Access (DMA) memory address violation when testing PCIe devices is disclosed. The method for detecting a DMA memory address violation when testing PCIe devices applies to unintentional and intentional accesses of memory space outside of an area in memory specified by the device driver developed for the device.
G06F 13/28 - Handling requests for interconnection or transfer for access to input/output bus using burst mode transfer, e.g. direct memory access, cycle steal
G06F 11/22 - Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing
G06F 13/42 - Bus transfer protocol, e.g. handshakeSynchronisation
16.
HIGH LINEARITY FET WITH BURIED GATE STRUCTURES AND TAPERED CHANNEL LAYER
A FET with buried gate structures which contact an epitaxial channel layer only from the sides. The epitaxial channel layer preferably comprises multiple channel segments, the widths of which vary along the depth direction. By controlling the slope of the channel sidewalls and the distance between buried gate structures, the FET's transfer characteristics can be engineered to improve the FET's linearity.
H01L 29/778 - Field-effect transistors with two-dimensional charge carrier gas channel, e.g. HEMT
H01L 29/20 - Semiconductor bodies characterised by the materials of which they are formed including, apart from doping materials or other impurities, only AIIIBV compounds
H01L 29/423 - Electrodes characterised by their shape, relative sizes or dispositions not carrying the current to be rectified, amplified or switched
17.
TRANSDUCER WITH IMPROVED VELOCITY ESTIMATION ACCURACY SYSTEMS AND METHODS
A sonar system and method for measuring relative velocity between a transducer and a scattering surface or volume is disclosed. The system utilizes phased array or piston transducers that project acoustic beams in different directions. Each projection consists of multiple sub-waveforms of different center frequencies that are either frequency steered into different directions such that the acoustic beams ensonify different scatterers or sufficiently separated in frequency to obtain independent estimates of velocity. Each received return signal is used to estimate an independent relative velocity between the transducer and scatterers, and the estimated velocities are averaged to reduce the single-ping standard deviation of the velocity error. Different lags may be used in the different sub-waveforms, wherein shorter lags are used to ambiguity resolve longer lags such that the system ambiguity velocity is sufficiently high, and the single-ping variance decreases below what would be possible when only using a short lag.
G01S 15/10 - Systems for measuring distance only using transmission of interrupted, pulse-modulated waves
G01S 15/52 - Discriminating between fixed and moving objects or between objects moving at different speeds
G01S 15/58 - Velocity or trajectory determination systemsSense-of-movement determination systems
G01S 15/60 - Velocity or trajectory determination systemsSense-of-movement determination systems wherein the transmitter and receiver are mounted on the moving object, e.g. for determining ground speed, drift angle, ground track
Techniques are provided for implementing hybrid anodes for batteries. In one example, a battery anode includes a current collector having a continuous particulate matrix and an open pore structure and an anode material disposed at least within pores of the current collector. In another example, a method of forming the anode includes forming a slurry of current collector particles, a binder, and a solvent, casting the slurry into a film, de-binding the slurry to remove the binder and solvent, sintering the particles to form a current collector, and infiltrating the current collector with an anode material.
A thermo-optical ground plane includes a plate configured to mount a diode laser device defining a first surface area, an evaporation chamber in thermal communication with the plate, and a channel defined in thermal communication with the evaporation chamber. The channel is configured to receive and circulate a coolant fluid at a predetermined flowrate. The evaporation chamber is configured to receive a working fluid. The inner walls of the evaporation chamber define a second surface area that is greater than the first surface area of the diode laser device. The plate comprises beam shaping and folding optics for collimating and focusing the light from the diode laser device on an optical fiber. Light from a plurality of thermo-optical ground planes is combined on a single optical fiber. The structure enables cooling with exceptionally low coolant flowrate while also maintaining small specific volume and small specific weight.
A sound source for acoustic communication, navigation, and networking of an underwater glider may include a cylindrical body, a rigid front section disposed anteriorly to the cylindrical body, a plurality of metal rods, a resonant pipe surrounding the rods, and a rod-mounted piezo-ceramic transducer disposed between the body and the front section. Each rod may be attached at a first end to an anterior portion of the body and at a second end to a posterior portion of the front section. The pipe may be disposed between the body and the front section. The transducer may be disposed within the pipe. A posterior end of the pipe may be separated from the anterior portion of the body by a first orifice, and an anterior end of the pipe may be separated from the posterior portion of the front section by a second orifice.
B63G 8/39 - Arrangements of sonic watch equipment, e.g. low-frequency, sonar
B06B 1/06 - Processes or apparatus for generating mechanical vibrations of infrasonic, sonic or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction
A sensor module including a microelectromechanical systems (“MEMS”) gyroscope resonator and an accelerometer positioned adjacent the MEMS gyroscope resonator is disclosed herein. The MEMS gyroscope resonator and accelerometer can be co-fabricated on a sensor die and a control circuit can be electrically coupled to the sensor die. The control circuit can be configured to receive signals from and control the MEMS gyroscope resonator and the accelerometer. An interposer can be positioned between and mechanically coupled to the sensor module and a substrate, wherein the interposer is configured to relieve stresses imposed by an operating environment on the sensor module and the substrate.
A method of forming an optical bridge waveguide between an optical element and an optical waveguide layer fabricated on a substrate such as a PIC platform. An optical element is heterogeneously integrated on the substrate. A first dielectric layer is deposited on the substrate and etched to a predetermined height. A second dielectric layer having a higher k than the first dielectric layer is deposited on the first dielectric layer, and a third dielectric layer having a lower k than the second dielectric layer is deposited on the second dielectric layer. The dielectric layers are formed such that the second dielectric layer provides an optical bridge waveguide between the optical element and optical waveguide layer, with the first and third dielectric layers providing a lower and upper cladding, respectively, for the optical bridge waveguide.
G02B 6/136 - Integrated optical circuits characterised by the manufacturing method by etching
G02B 6/122 - Basic optical elements, e.g. light-guiding paths
G02B 6/43 - Arrangements comprising a plurality of opto-electronic elements and associated optical interconnections
G02B 6/12 - Light guidesStructural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind
A method for stabilizing disrupted neural signals received by a brain-computer interface (BCI), where a translation model is trained on a clean and disrupted dataset and is used to translate a disrupted signal to a clean signal. The clean dataset is based on the data that is received the same day the BCI is calibrated and the disrupted dataset is based on data received the same day that the model is trained. Based on the variation in daily signal disruption, the training model is retrained each day and a new translation model is applied to a disrupted dataset.
MEMs-based variable blazed gratings are provided for passive or active phase modulation and beam control in LIDAR among other applications. A system and method for modulating light uses a microelectromechanical structure having deformable diffractive elements. The light is directed to the diffractive elements which act to reflect the light as planar mirrors. Applying a predetermined electrostatic force corresponding to each diffractive element flexes each diffractive element independently from other diffractive elements. Each diffractive element is either flexed continuously through a range of deflected positions or held stably at a single deflected position to interfere with the light through phase changes imparted according to the laws of diffraction.
G02B 26/08 - Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
A connector assembly includes a first and a second releasable and mateable connector. Each connector includes a front assembly composed of a manifold and a plurality of optical stems. Each manifold includes a plurality of inserts and a plurality of spherical seal assemblies. Each seal assembly is composed of a spherical ball, a ball dowel pin, and a ball actuator pin having a cam. Each spherical ball is configured to rotate about an axis defined by the two pins when the actuator pin cam traverses a groove fabricated in one of a plurality of guide rails disposed in the first connector. When the plurality of seal assemblies are in an open configuration, the optical stems of the first connector may slide through the inserts of the first connector, through the seals, and mate with the optical stems of the second connector within the inserts of the second connector.
Cookware and a method of manufacture thereof are provided. The method comprises forming a fluid conduit defining a volume in a base of the cookware, the base comprising a heating zone configured for thermal communication with the fluid conduit. A working fluid is introduced to the fluid conduit via an open end of the fluid conduit. A liquid phase of the working fluid occupies less than the volume of the fluid conduit. The fluid conduit is Sized and configured to form vapor segments and liquid segments interspersed throughout the fluid conduit from the working fluid. The open end of the fluid conduit is sealed to define a closed fluid system.
Disclosed are various methods for creating optical elements through holographic fabrication. One method includes positioning a reflector in an optical path, disposing a first substrate proximal to the reflector along the optical path, disposing a first photosensitive film on the side of the first substrate facing the reflector, transmitting a light beam at a first polarization from a light source along the optical path, reflecting the light beam off the reflector, wherein the reflected light beam has a second polarization, receiving the reflected light beam through the first film and the first substrate, and applying a liquid crystal layer to the first photosensitive film to reproduce the alignment pattern of the first film on the liquid crystal layer.
Laterally-gated transistors and lateral Schottky diodes are disclosed. The FET includes a substrate, source (304) and drain (306) electrodes channel, a gate electrode structure (307), and a dielectric layer (312). The gate electrode structure includes an electrode (308) in contact with the channel and a lateral field plate (332) adjacent to the electrode. The dielectric layer is disposed between the lateral field plate and the channel. The lateral field plate contacts the dielectric layer and to modulate an electric field proximal to the gate electrode proximal to the drain or source electrodes. Also disclosed is a gate electrode structure with lateral field plates symmetrically disposed relative to the gate electrode. Also disclosed in a substrate with dielectric structures buried in the substrate remote from the gate electrode structure. A lateral Schottky diode having an anode structure includes an anode, cathodes and lateral field plates located between the anode and the cathodes.
H01L 29/41 - Electrodes characterised by their shape, relative sizes or dispositions
H01L 29/423 - Electrodes characterised by their shape, relative sizes or dispositions not carrying the current to be rectified, amplified or switched
H01L 29/06 - Semiconductor bodies characterised by the shapes, relative sizes, or dispositions of the semiconductor regions
H01L 29/20 - Semiconductor bodies characterised by the materials of which they are formed including, apart from doping materials or other impurities, only AIIIBV compounds
32.
Laterally-gated transistors and lateral Schottky diodes with integrated lateral field plate structures
Laterally-gated transistors and lateral Schottky diodes are disclosed. The FET includes a substrate, source and drain electrodes, channel, a gate electrode structure, and a dielectric layer. The gate electrode structure includes an electrode in contact with the channel and a lateral field plate adjacent to the electrode. The dielectric layer is disposed between the lateral field plate and the channel. The lateral field plate contacts the dielectric layer and to modulate an electric field proximal to the gate electrode proximal to the drain or source electrodes. Also disclosed is a gate electrode structure with lateral field plates symmetrically disposed relative to the gate electrode. Also disclosed in a substrate with dielectric structures buried in the substrate remote from the gate electrode structure. A lateral Schottky diode having an anode structure includes an anode (A), cathodes (C) and lateral field plates located between the anode and the cathodes.
A method, system, and apparatus for simultaneous physical layer and protocol testing is provided that provides for simultaneous test of many layers of the communication stack at the same time, providing further measurement capability and insight into complex phenomena.
H04L 69/00 - Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
A flexible lid seal detector incorporates a compression body having a cavity including a sensor. The detector has a distal end comprising a plurality of concentric compression rings surrounding the cavity. An outer-most ring is defined by outer and inner shaping rims. The distal end includes a recessed lid deflection volume defined by the inner rim and a distal surface of the compression body. The deflection volume may receive a portion of a flexible lid when at least one of the rings applies a compressive force thereto, thereby deforming the lid into the deflection volume. The deflection volume may include a second compression ring and its respective inner and outer shaping rims. A seal detector system may include the detector with a controller configured to receive data from the sensor for a predetermined period of time while the detector applies the compressive force to the lid.
A multi-spectral lens comprises a circular polarizer and a tunable cholesteric filter having an associated reflection band. Incoming light is circularly polarized to one handedness by the circular polarizer, and the tunable cholesteric filter transmits the circularly polarized light and reflects the opposite handedness of the circularly polarized light if within the reflection band of the filter, with the reflection band of the tunable cholesteric filter varying with a control voltage. In a preferred embodiment, a mirror is arranged to receive light transmitted by the tunable cholesteric filter and reflect it back towards the filter with flipped handedness, with the reflected light with flipped handedness that is within the reflection band of the tunable cholesteric filter reflected by the tunable cholesteric filter back toward the mirror. The architecture described effectively converts the reflection band of a tunable cholesteric filter into a tunable bandpass filter for a multi-spectral imaging lens.
G02F 1/1335 - Structural association of cells with optical devices, e.g. polarisers or reflectors
G02F 1/137 - Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulatingNon-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
A multi-spectral lens comprises a circular polarizer and a tunable cholesteric filter having an associated reflection band. Incoming light is circularly polarized to one handedness by the circular polarizer, and the tunable cholesteric filter transmits the circularly polarized light and reflects the opposite handedness of the circularly polarized light if within the reflection band of the filter, with the reflection band of the tunable cholesteric filter varying with a control voltage. In a preferred embodiment, a mirror is arranged to receive light transmitted by the tunable cholesteric filter and reflect it back towards the filter with flipped handedness, with the reflected light with flipped handedness that is within the reflection band of the tunable cholesteric filter reflected by the tunable cholesteric filter back toward the mirror. The architecture described effectively converts the reflection band of a tunable cholesteric filter into a tunable bandpass filter for a multi-spectral imaging lens.
A method of forming a bipolar transistor with a vertical collector contact requires providing a transistor comprising a plurality of epitaxial semiconductor layers on a first substrate, and providing a host substrate. A metal collector contact is patterned on the top surface of the host substrate, and the plurality of epitaxial semiconductor layers is transferred from the first substrate onto the metal collector contact on the host substrate. The first substrate is suitably the growth substrate for the plurality of epitaxial semiconductor layers. The host substrate preferably has a higher thermal conductivity than does the first substrate, which improves the heat dissipation characteristics of the transistor and allows it to operate at higher power densities. A plurality of transistors may be transferred onto a common host substrate to form a multi-finger transistor.
H01L 29/08 - Semiconductor bodies characterised by the shapes, relative sizes, or dispositions of the semiconductor regions with semiconductor regions connected to an electrode carrying current to be rectified, amplified, or switched and such electrode being part of a semiconductor device which comprises three or more electrodes
H01L 21/683 - Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereofApparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components for supporting or gripping
H01L 23/36 - Selection of materials, or shaping, to facilitate cooling or heating, e.g. heat sinks
A method of forming a bipolar transistor with a vertical collector contact requires providing a transistor comprising a plurality of epitaxial semiconductor layers on a first substrate, and providing a host substrate. A metal collector contact is patterned on the top surface of the host substrate, and the plurality of epitaxial semiconductor layers is transferred from the first substrate onto the metal collector contact on the host substrate. The first substrate is suitably the growth substrate for the plurality of epitaxial semiconductor layers. The host substrate preferably has a higher thermal conductivity than does the first substrate, which improves the heat dissipation characteristics of the transistor and allows it to operate at higher power densities. A plurality of transistors may be transferred onto a common host substrate to form a multi-finger transistor.
H01L 21/8252 - Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate with subsequent division of the substrate into plural individual devices to produce devices, e.g. integrated circuits, each consisting of a plurality of components the substrate being a semiconductor, using III-V technology
An ohmic contact (10, 12) for a multiple channel (20) FET (14) comprises a plurality of slit-shaped recesses (16) in a wafer (18) on which a multiple channel FET resides, with each recess having a depth at least equal to the depth of the lowermost channel layer. Ohmic metals (22) in and on the sidewalls (40, 42) of each recess provide ohmic contact to each of the multiple channel layers. An ohmic metal- filled linear connecting recess contiguous with the outside edge of each recess may be provided, as well as an ohmic metal contact layer on the top surface of the wafer over and in contact with the ohmic metals in each of the recesses. The present ohmic contact typically serves as a source and/or drain contact for the multiple channel FET. Also described is the use of a regrown material to make ohmic contact with multiple channels, with the regrown material preferably having a corrugated structure.
H01L 29/417 - Electrodes characterised by their shape, relative sizes or dispositions carrying the current to be rectified, amplified or switched
H01L 29/778 - Field-effect transistors with two-dimensional charge carrier gas channel, e.g. HEMT
H01L 29/20 - Semiconductor bodies characterised by the materials of which they are formed including, apart from doping materials or other impurities, only AIIIBV compounds
An underwater active sonar system and method for measuring instrument velocity with respect to a boundary surface is disclosed. The system includes an acoustic transducer configured to transmit and receive a plurality of acoustic beams in different directions. The system also includes a processor configured to detect a boundary surface within each beam; iteratively filter received acoustic signals backscattered from the transmitted beams with an adaptive filter and associated bandwidth that is successively decreased for each iteration; and measure instrument velocity with respect to the boundary surface.
G01S 15/60 - Velocity or trajectory determination systemsSense-of-movement determination systems wherein the transmitter and receiver are mounted on the moving object, e.g. for determining ground speed, drift angle, ground track
G01S 7/54 - Details of systems according to groups , , of systems according to group with receivers spaced apart
41.
Electro-pneumatic module for enhanced gas titration/dilution processing
A vision-cued random-access LIDAR system and method winch determines the location and/or navigation path of a moving platform. A vision system on a moving platform identifies a region of interest. The system classifies objects within the region of interest, and directs random-access LIDAR to ping one or more of the classified objects. The platform is located in three dimensions using data from die vision system and LIDAR. The steps of classifying, directing, and locating are preferably performed continuously while the platform is moving and/or the vision system's field-of-view (FOV) is changing. Objects are preferably classified using at least one smart-vision algorithm, such as a machine-learning algorithm.
A vision-cued random-access LIDAR system and method which determines the location and/or navigation path of a moving platform. A vision system on a moving platform identifies a region of interest. The system classifies objects within the region of interest, and directs random-access LIDAR to ping one or more of the classified objects. The platform is located in three dimensions using data from the vision system and LIDAR. The steps of classifying, directing, and locating are preferably performed continuously while the platform is moving and/or the vision system's field-of-view (FOV) is changing. Objects are preferably classified using at least one smart-vision algorithm, such as a machine-learning algorithm.
A battery, a fixture for forming a battery plate, a kit, and a related method of manufacture are provided. The battery comprises a housing and a mechanically actuated valve. The housing defines a cell configured to receive battery plates. The mechanically actuated valve is in fluid communication with the cell and configured to control entry of electrolyte into the cell.
Method and apparatus for a parallel, metadata-based trace analytics processor is disclosed. The trace analytics processor is able to asynchronously parallelize the processing operation and use metadata about each parallel operation intelligently. The result is the ability to get analytics results quickly, efficiently, and in real time.
A submersible sound system may include a housing, an end piece, an elastic membrane, an end cap affixed to the elastic membrane, and a subwoofer speaker system disposed within the housing and supported by a speaker support. A bubble sound source may be defined by the speaker support, the speaker diaphragm, an anterior end of the housing, the elastic membrane, and the end cap. The housing, end piece, and a posterior surface of the speaker support may form a sealed enclosure. The sound system may include a tuning pipe disposed between the sealed enclosure and the bubble sound source. A Helmholtz resonator may be disposed anteriorly of the speaker system. Multiple sound system may be assembled to form a cluster. The cluster may be defined by the vertices of regular polyhedron. The sound systems may be controlled to maintain the speaker systems within acceptable thermal limits.
An underwater sound source includes a cylindrical body having a front body portion, a rear body portion, a cylindrical piezo-ceramic ring transducer disposed therebetween, a flexible sleeve configured to cover an outer surface of the cylindrical piezo ceramic ring transducer, and a resonant pipe mounted to the cylindrical body and surrounding the cylindrical piezo-ceramic ring transducer. The resonant pipe is disposed around the cylindrical piezo-ceramic ring transducer, forming a gap between an inner surface of the resonant pipe and the outer surface of the cylindrical piezo-ceramic ring transducer.
G01K 9/00 - Measuring temperature based on movements caused by redistribution of weight, e.g. tilting thermometer
G10K 9/122 - Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated using piezoelectric driving means
B06B 1/06 - Processes or apparatus for generating mechanical vibrations of infrasonic, sonic or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction
A sleep induction device includes a headband, multiple transcranial stimulation electrodes, and control electronics to drive the electrodes. The sleep induction device may be worn by an awake user prior to attempting sleep. The control electronics are configured to cause the stimulation electrodes to emit a sequence of stimulation waveforms separated by interstimulus periods. The stimulation waveforms may have the characteristics of low-delta waveforms that may characterize non-REM stage 3 sleep. The stimulation period may last from about 4-8 seconds and the interstimulus period may last from about 10 to 30 seconds. A sleep induction session may include multiple alternating stimulation and non-stimulation periods. The sleep induction session may last for about 5 minutes to about 30 minutes.
A61B 5/00 - Measuring for diagnostic purposes Identification of persons
A61B 5/374 - Detecting the frequency distribution of signals, e.g. detecting delta, theta, alpha, beta or gamma waves
A61M 21/00 - Other devices or methods to cause a change in the state of consciousnessDevices for producing or ending sleep by mechanical, optical, or acoustical means, e.g. for hypnosis
A61M 21/02 - Other devices or methods to cause a change in the state of consciousnessDevices for producing or ending sleep by mechanical, optical, or acoustical means, e.g. for hypnosis for inducing sleep or relaxation, e.g. by direct nerve stimulation, hypnosis, analgesia
A61N 1/08 - Arrangements or circuits for monitoring, protecting, controlling or indicating
A61N 1/36 - Applying electric currents by contact electrodes alternating or intermittent currents for stimulation, e.g. heart pace-makers
09 - Scientific and electric apparatus and instruments
42 - Scientific, technological and industrial services, research and design
Goods & Services
(1) Safety sensors, namely gas and flame detectors. (1) Platform as a service (PAAS) featuring computer software platforms for aggregating and viewing gas and flame detection data; electronic monitoring of gas and flame detectors.
50.
System and method for noninvasive identification of cognitive and behavioral goals
A brain machine interface system for use with an electroencephalogram to identify a behavioral intent of a person is disclosed. The system includes an electroencephalogram configured to sense electromagnetic signals generated by a brain of a person. The electromagnetic signals include a time component and a frequency component. A monitor monitors a response of the person to a stimulus and a characteristic of the stimulus. A synchronization module synchronizes the sensed electromagnetic signals with the response and the characteristic to determine a set of electromagnetic signals corresponding to the monitored response and the characteristic. A processor processes the set of electromagnetic signals and extracts feature vectors. The feature vectors define a class of behavioral intent. The processor determines the behavioral intent of the person based on the feature vectors. A brain machine interface and a method for identifying a behavioral intent of a person is also disclosed.
A61B 5/246 - Detecting biomagnetic fields, e.g. magnetic fields produced by bioelectric currents specially adapted for magnetoencephalographic [MEG] signals using evoked responses
A61B 5/316 - Modalities, i.e. specific diagnostic methods
A61B 5/374 - Detecting the frequency distribution of signals, e.g. detecting delta, theta, alpha, beta or gamma waves
A61B 3/113 - Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions for determining or recording eye movement
A61B 5/11 - Measuring movement of the entire body or parts thereof, e.g. head or hand tremor or mobility of a limb
A61B 5/00 - Measuring for diagnostic purposes Identification of persons
G06F 3/04842 - Selection of displayed objects or displayed text elements
A small aperture acoustic velocity sensor and a method for velocity measurement are disclosed. In one aspect, the disclosed technology uses spatially-shifted sub-arrays for projection and/or hydrophone receipt and cross-correlation of successive pulses to improve correlation and reduce bias. The spatial shift can be created physically by selection of groups of elements or virtually by weighting the contributions of fixed sub-arrays. Spatial modulation can be used to form a projected signal and measured spatial phase of slope across the set of sub-arrays allows correction of both long- and short-term errors. The disclosed technology uses spatial and/or temporal interpolation.
G01S 15/60 - Velocity or trajectory determination systemsSense-of-movement determination systems wherein the transmitter and receiver are mounted on the moving object, e.g. for determining ground speed, drift angle, ground track
09 - Scientific and electric apparatus and instruments
42 - Scientific, technological and industrial services, research and design
Goods & Services
Safety sensors, namely gas and flame detectors. Platform as a service (PAAS) featuring computer software platforms for aggregating and viewing gas and flame detection data; electronic monitoring of gas and flame detectors.
53.
Acoustic dual-frequency phased array with common beam angles
An acoustic dual-frequency phased array system with common beam angles is disclosed. In one aspect, the system includes a planar array of transducer elements and a multiplexing circuit for selecting between a first state and a second state during either transmit operation, receive operation or both transmit and receive operation. The multiplexer is configured to connect transducer elements to a plurality of connections different between the first state and second state. The system is configured to transmit and receive beams at a first frequency when the multiplexer is in the first state and transmit and receive beams at a second frequency when the multiplexer is in the second state. The angle of the beams from vertical in the first and second state are substantially similar.
A curved FPA comprises an array of detectors, with mesas etched between the detectors such that they are electrically and physically isolated from each other. Metallization deposited at the bottom of the mesas reconnects the detectors electrically and thereby provides a common ground between them. Strain induced by bending the FPA into a curved shape is across the metallization and any backfill epoxy, rather than across the detectors. Indium bumps are evaporated onto respective detectors for connection to a readout integrated circuit (ROIC). An ROIC coupled to the detectors is preferably thinned, and the backside of the ROIC may also include mesas such that the ROIC is reticulated.
A single crystal multilayer low-loss optical component including first and second layers made from dissimilar materials, with the materials including the first layer lattice-matched to the materials including the second layer. The first and second layers are grown epitaxially in pairs on a growth substrate to which the materials of the first layer are also lattice-matched, such that a single crystal multilayer optical component is formed. The optical component may further include a second substrate to which the layer pairs are wafer bonded after being removed from the growth substrate.
A submersible sound system may include a housing, an end piece, an elastic membrane, an end cap affixed to the elastic membrane, and a subwoofer speaker system disposed within the housing and supported by a speaker support. A bubble sound source may be defined by the speaker support, the speaker diaphragm, an anterior end of the housing, the elastic membrane, and the end cap. The housing, end piece, and a posterior surface of the speaker support may form a sealed enclosure. The sound system may include a tuning pipe disposed between the sealed enclosure and the bubble sound source. A Helmholtz resonator may be disposed anteriorly of the speaker system. Multiple sound system may be assembled to form a cluster. The cluster may be defined by the vertices of regular polyhedron. The sound systems may be controlled to maintain the speaker systems within acceptable thermal limits.
A connector comprising a contact, a plunger, and a spring activated seal is provided. The contact is positioned within the housing and configured to transmit at least one of an electrical signal and an optical signal between the connector and a secondary device. The plunger is positioned within the housing and in communication with the contact. The spring activated seal comprises a flexible portion and a spring configured to urge the flexible portion to contact the housing and at least one of the plunger and a contact of the secondary device to form a fluid tight seal therebetween.
A submersible sound system may include a housing, an end piece, an elastic membrane, an end cap affixed to the elastic membrane, and a subwoofer speaker system disposed within the housing and supported by a speaker support. A bubble sound source may be defined by the speaker support, the speaker diaphragm, an anterior end of the housing, the elastic membrane, and the end cap. The housing, end piece, and a posterior surface of the speaker support may form a sealed enclosure. The sound system may include a tuning pipe disposed between the sealed enclosure and the bubble sound source. A Helmholtz resonator may be disposed anteriorly of the speaker system. Multiple sound system may be assembled to form a cluster. The cluster may be defined by the vertices of regular polyhedron. The sound systems may be controlled to maintain the speaker systems within acceptable thermal limits.
A low frequency underwater sound source for use in an autonomous underwater vehicle includes a cylindrical body having a front portion, a rear portion, a cylindrical piezo-ceramic ring transducer disposed therebetween, and a resonant pipe surrounding the transducer. A gap is formed between an inner surface of the pipe and an outer surface of the transducer. Alternatively, the sound source includes a cylindrical body, a front fairing disposed forward of the cylindrical body, a plurality of metal rods connecting the front of the cylindrical body and the rear of the fairing, a spherical piezo-ceramic transducer disposed between the cylindrical body and the fairing, and a resonant pipe mounted at the front end of the cylindrical body. The spherical transducer is disposed within a cavity within the resonant pipe. A cylindrical orifice is formed between the front end of the resonant pipe and the rear of the fairing.
B06B 1/06 - Processes or apparatus for generating mechanical vibrations of infrasonic, sonic or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction
G10K 9/122 - Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated using piezoelectric driving means
A submersible sound system may include a housing, an end piece, an elastic membrane, an end cap affixed to the elastic membrane, and a subwoofer speaker system disposed within the housing and supported by a speaker support. A bubble sound source may be defined by the speaker support, the speaker diaphragm, an anterior end of the housing, the elastic membrane, and the end cap. The housing, end piece, and a posterior surface of the speaker support may form a sealed enclosure. The sound system may include a tuning pipe disposed between the sealed enclosure and the bubble sound source. A Helmholtz resonator may be disposed anteriorly of the speaker system. Multiple sound system may be assembled to form a cluster. The cluster may be defined by the vertices of regular polyhedron. The sound systems may be controlled to maintain the speaker systems within acceptable thermal limits.
A submersible sound system may include a housing, an end piece, an elastic membrane, an end cap affixed to the elastic membrane, and a subwoofer speaker system disposed within the housing and supported by a speaker support. A bubble sound source may be defined by the speaker support, the speaker diaphragm, an anterior end of the housing, the elastic membrane, and the end cap. The housing, end piece, and a posterior surface of the speaker support may form a sealed enclosure. The sound system may include a tuning pipe disposed between the sealed enclosure and the bubble sound source. A Helmholtz resonator may be disposed anteriorly of the speaker system. Multiple sound system may be assembled to form a cluster. The cluster may be defined by the vertices of regular polyhedron. The sound systems may be controlled to maintain the speaker systems within acceptable thermal limits.
A multi-color light detector includes a first photodiode. The light detector further includes a second photodiode stacked on the first photodiode and defining a via. The light detector further includes a first conductor extending through the via, contacting the first photodiode, and designed to transmit a first signal corresponding to a first light detected by the first photodiode. The light detector further includes a second conductor contacting the second photodiode and designed to transmit a second signal corresponding to a second light detected by the second photodiode.
A semiconductor material emitting device is positioned such that its output flux impinges on a substrate at a non-perpendicular angle, so as to grow a first epilayer which is linearly graded in the direction perpendicular to the growth direction. The linear grading can be arranged such that, for example, each row of pixels has a different cutoff wavelength, thereby making it possible to provide a spectroscopic FPA without the use of filters. The non-perpendicular angle and/or the flux intensity can be adjusted to achieve a desired compositional grading. A spectral ellipsometer may be used to monitor the composition of the epilayer during the fabrication process, and to control the intensity of the flux.
G01J 5/20 - Radiation pyrometry, e.g. infrared or optical thermometry using electric radiation detectors using resistors, thermistors or semiconductors sensitive to radiation, e.g. photoconductive devices
In general, the subject matter described in this disclosure can be embodied in methods, systems, and program products for changing the manner in which an input signal is filtered based on a characteristic of an electronic test instrument. The method includes receiving, by the electronic test instrument, user input that modifies a characteristic of a channel of the electronic test instrument, and as a result changing the electronic test instrument from having the first digital filtering configuration to having a second digital filtering configuration, the first digital filtering configuration specifying that all or a majority of digital filtering occurs after the acquisition memory in the channel and the second digital filtering configuration specifying that all or a majority of digital filtering occurs before the acquisition memory in the channel.
Systems and methods for a machine learning system to learn a new skill without catastrophically forgetting an existing skill and to continually learn in a self-supervised manner during operation, without human intervention.
G06K 9/62 - Methods or arrangements for recognition using electronic means
G06N 20/10 - Machine learning using kernel methods, e.g. support vector machines [SVM]
G06N 3/04 - Architecture, e.g. interconnection topology
G06F 18/22 - Matching criteria, e.g. proximity measures
G06F 18/2413 - Classification techniques relating to the classification model, e.g. parametric or non-parametric approaches based on distances to training or reference patterns
G06V 10/778 - Active pattern-learning, e.g. online learning of image or video features
G10L 15/30 - Distributed recognition, e.g. in client-server systems, for mobile phones or network applications
G06V 10/70 - Arrangements for image or video recognition or understanding using pattern recognition or machine learning
G10L 17/08 - Use of distortion metrics or a particular distance between probe pattern and reference templates
G06V 10/74 - Image or video pattern matchingProximity measures in feature spaces
G06F 18/243 - Classification techniques relating to the number of classes
A system for generating non- vitiated air and a method of use thereof are provided. The system comprises a nitrous oxide source and a chamber configured to convert the nitrous oxide from the nitrous oxide source into non- vitiated air at a temperature of at least 1,000 degrees Fahrenheit. The chamber comprises a chamber volume (Vc), an inlet, a conversion accelerator, and an outlet. The inlet is in fluid communication with the nitrous oxide source. The conversion accelerator is disposed within the chamber and configured to accelerate conversion of the nitrous oxide into the non-vitiated air. The outlet is configured to receive the non-vitiated air and comprises a throat area (At). A characteristic length, L*, as defined by Vc/At of the chamber is at least 1 cm.
F02C 7/00 - Features, component parts, details or accessories, not provided for in, or of interest apart from, groups Air intakes for jet-propulsion plants
G01N 3/313 - Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force generated by explosives
68.
Method to test direct memory access (DMA) address capabilities at high address values
A method for detecting a Direct Memory Access (DMA) address capability at high address values when testing PCIe devices is disclosed. The method includes enabling an input/output (I/O) memory management unit (IOMMU); remapping physical addresses to virtual addresses at a high end of an address range; adding a peripheral component interconnect express (PCIe) device; and mapping physical memory addresses to high value memory addresses.
G06F 13/28 - Handling requests for interconnection or transfer for access to input/output bus using burst mode transfer, e.g. direct memory access, cycle steal
A submersible sound system may include a housing, an end piece, an elastic membrane, an end cap affixed to the elastic membrane, and a subwoofer speaker system disposed within the housing and supported by a speaker support. A bubble sound source may be defined by the speaker support, the speaker diaphragm, an anterior end of the housing, the elastic membrane, and the end cap. The housing, end piece, and a posterior surface of the speaker support may form a sealed enclosure. The sound system may include a tuning pipe disposed between the sealed enclosure and the bubble sound source. A Helmholtz resonator may be disposed anteriorly of the speaker system. Multiple sound system may be assembled to form a cluster. The cluster may be defined by the vertices of regular polyhedron. The sound systems may be controlled to maintain the speaker systems within acceptable thermal limits.
Cookware and a method of manufacture thereof are provided. The method comprises forming a fluid conduit defining a volume in a base of the cookware, the base comprising a heating zone configured for thermal communication with the fluid conduit. A working fluid is introduced to the fluid conduit via an open end of the fluid conduit. A liquid phase of the working fluid occupies less than the volume of the fluid conduit. The fluid conduit is Sized and configured to form vapor segments and liquid segments interspersed throughout the fluid conduit from the working fluid. The open end of the fluid conduit is sealed to define a closed fluid system.
A filtration membrane coating comprising a hydrophilic polymer, a surfactant, and one or more charged compounds, each containing one or more sulfonate functionalities and one or more linkable functionalities selected from the group consisting of amine, monochlorotriazine, and dichlorotriazine. The hydrophilic polymer and surfactant form a thin primer layer which is also superhydrophilic. The primer layer improves flux, and enables improved adhesion of the one or more charged compounds, which form a charged dye layer on top of the primer layer when enhances rejection of charged divalent ions. The coating can be applied while the membrane is packaged in its final form, such as in a spiral wound or other configuration.
B01D 69/02 - Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or propertiesManufacturing processes specially adapted therefor characterised by their properties
B01D 71/82 - Macromolecular material not specifically provided for in a single one of groups characterised by the presence of specified groups, e.g. introduced by chemical after-treatment
B01D 67/00 - Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
09 - Scientific and electric apparatus and instruments
10 - Medical apparatus and instruments
28 - Games; toys; sports equipment
Goods & Services
Downloadable computer application software for mobile phones, namely, software for enhancing sleep Electrical stimulation apparatus for the head for enhancing sleep Non-medical electrical stimulation body-training apparatus for sleep enhancement
73.
ACOUSTIC DUAL-FREQUENCY PHASED ARRAY WITH COMMON BEAM ANGLES
An acoustic dual-frequency phased array system with common beam angles is disclosed. In one aspect, the system includes a planar array of transducer elements and a multiplexing circuit for selecting between a first state and a second state during either transmit operation, receive operation or both transmit and receive operation. The multiplexer is configured to connect transducer elements to a plurality of connections different between the first state and second state. The system is configured to transmit and receive beams at a first frequency when the multiplexer is in the first state and transmit and receive beams at a second frequency when the multiplexer is in the second state. The angle of the beams from vertical in the first and second state are substantially similar.
In general, the subject matter described in this disclosure can be embodied in methods, systems, and program products for characterizing a device under test. An electrical waveform is received from the device under test and sampled to generate an array of data values. User input selects a particular position of the electrical waveform on a display, and identifies a corresponding starting time. A decay of a value at the starting time is identified and the array is analyzed to identify multiple data values that correspond to the decayed value. An ending time is then determined using the multiple data values, and a decay time between the starting time and ending time is determined and presented on a display device.
G01N 27/22 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating capacitance
A fuel cell purge system includes a primary fuel cell in fluid communication with a purge cell. Fuel and oxidant purged with inert gas impurities from the primary fuel cell react in the purge cell, thereby decreasing the volume of purged gases and facilitating storage while maintaining fuel cell electrochemical performance.
H01M 8/04223 - Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids during start-up or shut-downDepolarisation or activation, e.g. purgingMeans for short-circuiting defective fuel cells
H01M 8/04119 - Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyteHumidifying or dehumidifying
H01M 8/04291 - Arrangements for managing water in solid electrolyte fuel cell systems
H01M 8/0662 - Treatment of gaseous reactants or gaseous residues, e.g. cleaning
09 - Scientific and electric apparatus and instruments
Goods & Services
Downloadable computer software and computer hardware for combining and displaying data obtained from multiple electronic instruments on a single display.
09 - Scientific and electric apparatus and instruments
Goods & Services
(1) Downloadable computer software and computer hardware for combining and displaying data obtained from multiple electronic instruments attached to an oscilloscope on a single electronic display.
A light sensor includes an N-type semiconductor. The light sensor further includes a P-type semiconductor stacked on at least a portion of the N-type semiconductor, partially defining a trench extending into the P-type semiconductor, and having a trench portion aligned with the trench and extending farther into the N-type semiconductor than other portions of the P-type semiconductor. The light sensor also includes a passivation layer stacked on and contacting the P-type semiconductor and partially defining the trench that extends through the passivation layer and into the P-type semiconductor. The light sensor further includes an electrical contact stacked on the passivation layer, positioned within the trench, and extending through the passivation layer into the P-type semiconductor such that photons received by the N-type semiconductor generate photocurrent resulting in a voltage at the electrical contact.
H01L 31/0352 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by their semiconductor bodies characterised by their shape or by the shapes, relative sizes or disposition of the semiconductor regions
H01L 31/0296 - Inorganic materials including, apart from doping material or other impurities, only AIIBVI compounds, e.g. CdS, ZnS, HgCdTe
H01L 31/0336 - Inorganic materials including, apart from doping materials or other impurities, semiconductor materials provided for in two or more of groups in different semiconductor regions, e.g. Cu2X/CdX hetero-junctions, X being an element of Group VI of the Periodic System
H01L 31/18 - Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof
H01L 31/103 - Devices sensitive to infrared, visible or ultraviolet radiation characterised by only one potential barrier or surface barrier the potential barrier being of the PN homojunction type
G01J 1/42 - Photometry, e.g. photographic exposure meter using electric radiation detectors
A redundant memory for use with an instrument arranged to acquire and store data while underwater. Such an instrument comprises a main housing which contains instrument electronics that acquires and may process data received from one or more sensors, with a primary memory located within the main housing and arranged to store at least some of the acquired and/or processed data, and a secondary memory which stores a copy of the data stored in the primary memory. The instrumentation may be arranged to write data to the primary and secondary memories contemporaneously in either a burst or continuous mode, or with primary memory backed up to secondary memory periodically and/or in response to the occurrence of a triggering event. The instrument may comprise a second housing within which the secondary memory is located. The main and second housings may be contained within a common enclosure.
G06F 1/16 - Constructional details or arrangements
H05K 5/02 - Casings, cabinets or drawers for electric apparatus Details
G06F 13/28 - Handling requests for interconnection or transfer for access to input/output bus using burst mode transfer, e.g. direct memory access, cycle steal
A redundant memory for use with an instrument arranged to acquire and store data while underwater. Such an instrument comprises a main housing which contains instrument electronics that acquires and may process data received from one or more sensors, with a primary memory located within the main housing and arranged to store at least some of the acquired and/or processed data, and a secondary memory which stores a copy of the data stored in the primary memory. The instrumentation may be arranged to write data to the primary and secondary memories contemporaneously in either a burst or continuous mode, or with primary memory backed up to secondary memory periodically and/or in response to the occurrence of a triggering event. The instrument may comprise a second housing within which the secondary memory is located. The main and second housings may be contained within a common enclosure.
G06F 11/14 - Error detection or correction of the data by redundancy in operation, e.g. by using different operation sequences leading to the same result
G06F 11/20 - Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements
09 - Scientific and electric apparatus and instruments
Goods & Services
Downloadable computer software and computer hardware for combining and displaying data obtained from multiple electronic instruments on a single display
83.
Apparatus for dynamically varying extraction distance between extraction volume and sample surface
A system, apparatus configured to dynamically vary an extraction distance between an extraction volume and a sample surface through a probe assembly height adjustment apparatus operably coupled to a motor in which a processor can move the probe assembly height adjustment apparatus to maintain the extraction distance, or tune the extraction distance to optimize sampling performance. Methods for calibrating, tuning an extraction distance between an extraction volume and a sample surface.
The present disclosure relates to methods and apparatus for testing the true capabilities of devices connected to a computer. Methods consistent with the present disclosure may include generating test commands to send to a data storage device under test while storing information related to the commands sent to the data storage device in a low latency buffer. The low latency buffer may temporarily store command related data while data from a plurality of commands are organized and persistently stored in memory of a persistent data storage device. The low latency buffer may include or be comprised of high speed random access memory and the persistent data storage device may be a solid state drive or hard disk drive. Preferably, the persistent data storage device will store command test sequences that span long periods of time of hours or days.
A micro-machined optical shutter includes an entry layer with a through-passage having an input side adapted to receive incoming light and an output side, and an exit layer with a through-passage having an input side comprising a pinhole and an output side. The entry and exit layers are vertically aligned, thereby providing an optical path such that light exiting the entry layer enters the exit layer via the pinhole unless the optical path is interrupted. An actuation plane positioned between the entry and exit layers comprises a shutter blade and an actuator arranged to move the shutter blade laterally with respect to the pinhole when actuated. The shutter blade preferably has a reflective angled surface such that, when the blade covers the pinhole, the angled surface redirects light on the optical path away from the pinhole, preferably into a micromachined beam dump.
G02B 26/02 - Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the intensity of light
G02B 7/04 - Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
86.
Dry heat diffusion cell and diffusion sampling system
A diffusion system to improve the efficiency, accuracy, and consistency of testing the release rate of an active ingredient in semisolid form through a membrane in between a dosage lid and a cell cap mounted on a cell in which a mixer is placed to mix the receptor medium in the cell as the semisolid diffuses through the membrane. The cell can be placed in a heating system to heat the samples. The cell has a sampling arm through which samples of the receptor medium can be extracted without opening the cell cap and dosage lid. The mixer may be cylindrical and may occupy a large surface area of the cell. The mixer may have grooves and other irregularities to increase turbulence while mixing. The system can be automated using an automated sampling and collection station.
A method of forming void-free, high aspect ratio through-substrate vias by “bottom-up” electroplating. In one embodiment, the method requires providing a substrate, forming a dielectric layer on the substrate's bottom side, providing at least one perforation through the dielectric layer, forming a via hole through the substrate from its top side to the dielectric layer and over the perforations, forming an isolation layer on the sidewalls of the via hole, forming a metal seed layer on the bottom side of the dielectric layer, electroplating the seed layer such that all of the perforations are plugged, and electroplating up the via hole from the plugs to fill the via hole.
ph, a transfer gate connected in series between the PPD and a first node, a low-gain select transistor connected between the first node and a second node, a reset transistor connected between the second node and a reset voltage, a capacitance connected between the second node and a first constant potential, and a source-follower transistor whose source, gate and drain are connected to an output node, the first node and a second constant potential, respectively. When properly arranged, a vertically integrated (3D) global-shutter pinned PPD pixel is provided, which uses an overflow integration capacitor and subthreshold conduction of the reset transistor for increased dynamic range. Global shutter operation is achieved by storing the pixel output on sampling capacitors in another semiconductor layer at the end of integration.
A differential data transmitter with pre-emphasis comprises a main driver coupled to receive an input data stream and to produce a main differential output stream which varies with the input stream, circuitry which provides a delayed and inverted version of the input stream, and a first pre-emphasis driver coupled to the output of the circuitry and arranged to produce a pre-emphasis differential output stream which varies with the delayed and inverted input stream. The pre-emphasis differential output stream is coupled to the main differential output stream to produce differential data transmitter output signals. The main and pre-emphasis drivers operate in parallel, with the pre-emphasis driver boosting the output signals when consecutive bits in the input stream change state, and attenuating the output signals when consecutive bits in the input stream do not change state.
H01L 27/06 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including integrated passive circuit elements with at least one potential-jump barrier or surface barrier the substrate being a semiconductor body including a plurality of individual components in a non-repetitive configuration
Disclosed are a system and method for undersea navigation with a maritime vehicle or diver undersea navigation device. A sensor interface receives navigation information from a plurality of sensors used to sense navigation information. A processor receives the navigation information from the sensor interface. The processor converts the navigation information into graphics data. The processor provides the graphics data to a graphics processing unit to render a navigation board image on a display of the maritime vehicle or diver undersea navigation device. The navigation board image comprises a plurality of navigation indicators to indicate the navigation information and a compass comprising a plurality of rotational orientation indicators to indicate rotational orientation information. The rotational orientation indicators include a plurality of heading direction indicators, a current heading indicator, and a plurality of pitch indicators, where the plurality of pitch indicators indicate pitch information.
B63B 49/00 - Arrangements of nautical instruments or navigational aids
G01C 23/00 - Combined instruments indicating more than one navigational value, e.g. for aircraftCombined measuring devices for measuring two or more variables of movement, e.g. distance, speed or acceleration
B63B 39/00 - Equipment to decrease pitch, roll, or like unwanted vessel movementsApparatus for indicating vessel attitude
G01C 21/20 - Instruments for performing navigational calculations
G01C 17/00 - CompassesDevices for ascertaining true or magnetic north for navigation or surveying purposes
G01S 15/93 - Sonar systems specially adapted for specific applications for anti-collision purposes
G01P 5/00 - Measuring speed of fluids, e.g. of air streamMeasuring speed of bodies relative to fluids, e.g. of ship, of aircraft
91.
Noise analysis to reveal jitter and crosstalk's effect on signal integrity
A method and apparatus for generating a probability density function eye are provided. The method preferably includes the steps of acquiring an input waveform, performing a clock data recovery in accordance with the input waveform to determine one or more expected transition times and defining a plurality of unit intervals of the input waveform in accordance with the one or more expected transition times. One or more values of one or more data points may then be determined in accordance with the input waveform in accordance with the one or more expected transition times, and a category for each unit interval in accordance with its state and its position within the input waveform may also be determined. One or more histograms may then be generated for the determined one or more values for each category of unit intervals.
H04B 17/23 - Indication means, e.g. displays, alarms or audible means
H04L 7/00 - Arrangements for synchronising receiver with transmitter
H04B 17/21 - MonitoringTesting of receivers for calibrationMonitoringTesting of receivers for correcting measurements
H04L 7/033 - Speed or phase control by the received code signals, the signals containing no special synchronisation information using the transitions of the received signal to control the phase of the synchronising-signal- generating means, e.g. using a phase-locked loop
An acoustic transducer and method of generating acoustic transmit and receive beams is disclosed. The system includes a plurality of transducer elements arranged to form an array, where the elements are electrically connected into groups which operate at the same electrical phase, where the phases of adjacent groups of elements differ by between about 50 and 70 degrees and a beamforming circuit where the transmit and receive signals are operated with appropriate phase shifts to maintain the between about 50 and 70 degrees phase difference between adjacent groups. The resulting transducer generates transmit and receive beams that are nominally inclined less than about 30 degrees from a planar normal axis of the array.
G01S 15/60 - Velocity or trajectory determination systemsSense-of-movement determination systems wherein the transmitter and receiver are mounted on the moving object, e.g. for determining ground speed, drift angle, ground track
G10K 11/34 - Sound-focusing or directing, e.g. scanning using electrical steering of transducer arrays, e.g. beam steering
G01S 15/89 - Sonar systems specially adapted for specific applications for mapping or imaging
An acoustic transducer and method of generating acoustic transmit and receive beams is disclosed. The system includes a plurality of transducer elements arranged to folio an array, where the elements are electrically connected into groups which operate at the same electrical phase, where the phases of adjacent groups of elements differ by between about 50 and 70 degrees and a beamforming circuit where the transmit and receive signals are operated with appropriate phase shifts to maintain the between about 50 and 70 degrees phase difference between adjacent groups. The resulting transducer generates transmit and receive beams that are nominally inclined less than about 30 degrees from a planar normal axis of the array.
An underwater active sonar system and method for measuring instrument velocity with respect to a boundary surface is disclosed. The system includes an acoustic transducer configured to transmit and receive a plurality of acoustic beams in different directions. The system also includes a processor configured to detect a boundary surface within each beam; iteratively filter received acoustic signals backscattered from the transmitted beams with an adaptive filter and associated bandwidth that is successively decreased for each iteration; and measure instrument velocity with respect to the boundary surface.
G01S 15/60 - Velocity or trajectory determination systemsSense-of-movement determination systems wherein the transmitter and receiver are mounted on the moving object, e.g. for determining ground speed, drift angle, ground track
95.
Dynamic power supply sensor for multi-power supply applications
In general, the subject matter described in this disclosure can be embodied in a system that implements power supply protection. The system includes first circuitry, second circuitry, a first power supply that is configured to power the first circuitry, and a second power supply that is configured to power the first circuitry and the second circuitry. The system also includes a power supply sensor including an input that is connected to the first power supply, and an output. The system also includes a hysteresis buffer including an input that is connected to the output of the power supply sensor, and an output that is connected to the first circuitry in a configuration that transitions the first circuitry to a protected state as a result of the hysteresis buffer transitioning output states.
H02J 3/18 - Arrangements for adjusting, eliminating or compensating reactive power in networks
H02J 9/06 - Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over
G05F 1/62 - Regulating voltage or current wherein the variable actually regulated by the final control device is DC using bucking or boosting DC sources
G05B 13/02 - Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion electric
A method of fabricating a voltage-tunable liquid crystal-based notch filter requires filling at least two LC cells with cholesteric LC material to create LH and RH LC cells while applying heat to the cell substrates such that their temperatures are raised to near, but below, the clearing point, such that the LC material remains in the cholesteric state. An AC voltage is applied and turned off repeatedly while the LC cells cool down to room temperature, to cause the LC molecules to temporarily deviate from their intrinsic helical alignment. The cells are passed under a UV light sufficient to create cross-linked polymer networks, and self-compensation is used to compensate for in-band retardation. The resulting LH and RH LC cells are stacked such that the electrodes on adjacent substrates are connected to form a common electrode.
G02F 1/133 - Constructional arrangementsOperation of liquid crystal cellsCircuit arrangements
G02F 1/137 - Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulatingNon-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
G02F 1/1334 - Constructional arrangements based on polymer-dispersed liquid crystals, e.g. microencapsulated liquid crystals
G02F 1/1347 - Arrangement of liquid crystal layers or cells in which the final condition of one light beam is achieved by the addition of the effects of two or more layers or cells
A light sensor includes an N-type semiconductor. The light sensor further includes a P-type semiconductor stacked on at least a portion of the N-type semiconductor, partially defining a trench extending into the P-type semiconductor, and having a trench portion aligned with the trench and extending farther into the N-type semiconductor than other portions of the P-type semiconductor. The light sensor also includes a passivation layer stacked on and contacting the P-type semiconductor and partially defining the trench that extends through the passivation layer and into the P-type semiconductor. The light sensor further includes an electrical contact stacked on the passivation layer, positioned within the trench, and extending through the passivation layer into the P-type semiconductor such that photons received by the N-type semiconductor generate photocurrent resulting in a voltage at the electrical contact.
H01L 31/0352 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by their semiconductor bodies characterised by their shape or by the shapes, relative sizes or disposition of the semiconductor regions
H01L 31/0296 - Inorganic materials including, apart from doping material or other impurities, only AIIBVI compounds, e.g. CdS, ZnS, HgCdTe
H01L 31/0336 - Inorganic materials including, apart from doping materials or other impurities, semiconductor materials provided for in two or more of groups in different semiconductor regions, e.g. Cu2X/CdX hetero-junctions, X being an element of Group VI of the Periodic System
H01L 31/18 - Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof
H01L 31/103 - Devices sensitive to infrared, visible or ultraviolet radiation characterised by only one potential barrier or surface barrier the potential barrier being of the PN homojunction type
G01J 1/42 - Photometry, e.g. photographic exposure meter using electric radiation detectors
A thermal-interface-material (TIM)-free thermal management apparatus includes a thermally-conductive unitary structure having an integrated circuit (IC) side and cooling system side, the thermally-conductive unitary structure including a plurality of high aspect ratio micro-pillars or porous structures extending from the IC side and a cooling system extending from the cooling system side. The cooling system may be selected from the group consisting of: a vapor chamber, micro-channel cooler, jet-impingement chamber, and air-cooled heat sink. The cooling system and the plurality of high aspect ratio micro-pillars form part of the same homogenous and thermally-conductive unitary structure.
F28F 3/04 - Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element
F28D 15/02 - Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls in which the medium condenses and evaporates, e.g. heat-pipes
F28D 15/04 - Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls in which the medium condenses and evaporates, e.g. heat-pipes with tubes having a capillary structure
H01L 23/427 - Cooling by change of state, e.g. use of heat pipes
F28D 21/00 - Heat-exchange apparatus not covered by any of the groups
100.
Spectroscopic focal plane array and method of making same
A semiconductor material emitting device is positioned such that its output flux impinges on a substrate at a non-perpendicular angle, so as to grow a first epilayer which is linearly graded in the direction perpendicular to the growth direction. The linear grading can be arranged such that, for example, each row of pixels has a different cutoff wavelength, thereby making it possible to provide a spectroscopic FPA without the use of filters. The non-perpendicular angle and/or the flux intensity can be adjusted to achieve a desired compositional grading. A spectral ellipsometer may be used to monitor the composition of the epilayer during the fabrication process, and to control the intensity of the flux.
H01L 21/20 - Deposition of semiconductor materials on a substrate, e.g. epitaxial growth
G01J 5/20 - Radiation pyrometry, e.g. infrared or optical thermometry using electric radiation detectors using resistors, thermistors or semiconductors sensitive to radiation, e.g. photoconductive devices
