The present disclosure may provide a device and method for dispersion measurement from a received signal. The device may include a boundary checker configured to measure a shape of eye diagram of a sampled received signal; and a dispersion quantity estimator configured to estimate the dispersion quantity based on the shape of eye diagram. According to the present disclosure, it is possible to provide a technical method capable of quantitatively measuring and using the dispersion quantity from the shape of eye diagram distorted by the dispersion due to an optical path in a receiver.
H04B 10/079 - Dispositions pour la surveillance ou le test de systèmes de transmissionDispositions pour la mesure des défauts de systèmes de transmission utilisant un signal en service utilisant des mesures du signal de données
H04B 10/2513 - Dispositions spécifiques à la transmission par fibres pour réduire ou éliminer la distorsion ou la dispersion due à la dispersion chromatique
2.
SYSTEM FOR DUAL-BAND PLASTIC WAVEGUIDE TRANSMISSION
A dual-band plastic waveguide transmission system includes an RF receiver configured to receive, from an RF transmitter, a first signal of a first carrier frequency and a second signal of a second carrier frequency higher than the first carrier frequency; a plastic waveguide device configured to provide a communication channel between the RF transmitter and the RF receiver; and an interconnecting device including a first microstrip-to-waveguide transition (MWT) configured to transmit the first signal from the plastic waveguide device to the RF receiver, and a second MWT configured to transmit the second signal from the plastic waveguide device to the RF receiver. A frequency bandwidth of the first signal may be adjusted by the plastic waveguide device and the first MWT, and a frequency bandwidth of the second signal may be adjusted by the plastic waveguide device and the second MWT.
H01Q 13/20 - Antennes constituées par un guide non résonnant à ondes de fuite ou une ligne de transmissionStructures équivalentes produisant un rayonnement le long du trajet de l'onde guidée
H04B 1/00 - Détails des systèmes de transmission, non couverts par l'un des groupes Détails des systèmes de transmission non caractérisés par le milieu utilisé pour la transmission
3.
50 GB/S PAM4 BI-DIRECTIONAL PLASTIC WAVEGUIDE LINK HAVING CARRIER SYNCHRONIZATION USING PI-BASED COSTAS LOOP
According to the present disclosure, an RF communication system using a bi-directional plastic waveguide link is suggested. The system may comprise: an RF transmitter configured to up-convert a transmission signal to a carrier frequency, and transmit same; an RF receiver configured to down-convert a reception signal received on the carrier frequency, and receive same; a bi-directional plastic waveguide device configured to provide a channel for transmission of the transmission signal and a channel for reception of the reception signal; and a microstrip-to-waveguide transition (MWT) configured to transfer a signal between the RF transmitter or the RF receiver and the bi-directional plastic waveguide device. The RF receiver may comprise: a phase detector configured to detect the phase of the down-converted reception signal by using a clock signal; and a phase synchronization device configured to regulate the phase of the clock signal on the basis of the detected phase. Through such configuration, the present disclosure may suggest a 50 GB/S PAM4 bi-directional plastic waveguide link having carrier synchronization using a PI-based Costas loop, which can exhibit very excellent performance from the perspective of a throughput-distance and energy efficiency, compared to conventional technology.
H04B 1/00 - Détails des systèmes de transmission, non couverts par l'un des groupes Détails des systèmes de transmission non caractérisés par le milieu utilisé pour la transmission
H04B 3/52 - Systèmes de transmission entre stations fixes, au moyen de guides d'onde
H04L 7/027 - Commande de vitesse ou de phase au moyen des signaux de code reçus, les signaux ne contenant aucune information de synchronisation particulière en extrayant le signal d'horloge ou de synchronisation du spectre du signal reçu, p. ex. en utilisant un circuit résonnant ou passe-bande
H04L 27/227 - Circuits de démodulationCircuits récepteurs utilisant une démodulation cohérente
4.
Device and method for phase adjustment of receiver for PAM signaling
The present disclosure may provide a device and method for independent phase adjustment of a PAM receiver. The device includes: a plurality of samplers configured to perform sampling for signal level decision of multi-level input data; a global clock source configured to provide a common sampling clock to the samplers; and a plurality of phase adjusters configured to respectively adjust a phase of the common sampling clock to provide a sampling phase applied to a corresponding sampler. According to the present disclosure, it is possible to achieve reliable BER performance by independently adjusting a sampling phase of a sampler corresponding to each eye opening even in the presence of unsymmetric eye openings.
H04L 27/38 - Circuits de démodulationCircuits récepteurs
H04L 25/49 - Circuits d'émissionCircuits de réception à conversion de code au transmetteurCircuits d'émissionCircuits de réception à pré-distorsionCircuits d'émissionCircuits de réception à insertion d'intervalles morts pour obtenir un spectre de fréquence désiréCircuits d'émissionCircuits de réception à au moins trois niveaux d'amplitude
H04L 27/36 - Circuits de modulationCircuits émetteurs
5.
DEVICE AND METHOD FOR MEASURING DISPERSION OF RECEIVED SIGNAL
The present disclosure may provide a device and method for measuring the dispersion of a received signal. The device may comprise: a boundary checker configured to measure an eye diagram shape of a sampled received signal; and a dispersion size prediction unit configured to predict a dispersion size on the basis of the eye diagram shape. According to the present disclosure, a technical method may be provided that enables the quantitative measurement and utilization of the size of a dispersion-induced distortion in an eye shape caused by an optical path in a receiver.
H04B 10/079 - Dispositions pour la surveillance ou le test de systèmes de transmissionDispositions pour la mesure des défauts de systèmes de transmission utilisant un signal en service utilisant des mesures du signal de données
H04B 10/2513 - Dispositions spécifiques à la transmission par fibres pour réduire ou éliminer la distorsion ou la dispersion due à la dispersion chromatique
H04B 10/69 - Dispositions électriques dans le récepteur
6.
DEVICE AND METHOD FOR CALIBRATING RELATIVE LEVEL MISMATCH OF PAM SIGNAL
The present disclosure may provide a device and a method for calibrating relative level mismatch of a PAM signal. The device may comprise: multiple PAM drivers for outputting the PAM signal, each PAM driver comprising a driving current source and a differential transistor pair for signal output; a driver on/off controller configured to activate one of the PAM drivers and deactivate the remaining PAM drivers; a pattern generator configured to generate a training pattern which is input to the activated PAM driver; a level measurement unit configured to measure the eye amplitude of an output signal which is output by the activated PAM driver according to the training pattern; and a current adjustment unit configured to adjust the current source of the activated PAM driver such that the measured eye amplitude reaches a target eye amplitude. The present disclosure is advantageous in that level measurement can be performed with regard to independent individual eyes among multiple eyes of a PAM output signal such that, by reducing the measurement target signal amplitude to one eye amplitude, relative level mismatch can be measured and calibrated in a condition in which a high level of linearity can be maintained.
H04L 25/49 - Circuits d'émissionCircuits de réception à conversion de code au transmetteurCircuits d'émissionCircuits de réception à pré-distorsionCircuits d'émissionCircuits de réception à insertion d'intervalles morts pour obtenir un spectre de fréquence désiréCircuits d'émissionCircuits de réception à au moins trois niveaux d'amplitude
Provided according to the present disclosure is a dual-band plastic waveguide transmission system. The system may comprise: an RF receiver configured to receive a first signal and a second signal which are transmitted at a first carrier frequency and a second carrier frequency higher than the first carrier frequency from an RF transmitter respectively; a plastic waveguide device configured to provide a communication channel between the RF receiver and the RF transmitter; and an interconnection device including a first microstrip-to-waveguide transition (MWT) which is configured to transfer the first signal from the plastic waveguide device to the RF receiver and a second MWT which is configured to transfer the second signal from the plastic waveguide device to the RF receiver. The frequency bandwidth of the first signal may be adjusted by the plastic waveguide device and the first MWT so that the first signal is received as an upper sideband signal, and the frequency bandwidth of the second signal may be adjusted by the plastic waveguide device and the second MWT so that the second signal is received as a lower sideband signal.
H01P 5/18 - Dispositifs à accès conjugués, c.-à-d. dispositifs présentant au moins un accès découplé d'un autre accès consistant en deux guides couplés, p. ex. coupleurs directionnels
8.
SYSTEM AND METHOD FOR IMPLEMENTING BROADBAND RF COMMUNICATION
Provided is a system for implementing a broadband radio frequency (RF) communication. The system includes a first phase locked loop (PLL) unit configured to generate a first clock based on a reference clock; and a second PLL unit configured to generate a second clock based on the first clock generated by the first PLL unit and a baseband signal generated by demodulating a reception signal. The second clock is provided to the first PLL unit as the reference clock, and a carrier frequency used for demodulating the reception signal is determined by the first clock.
H04L 7/033 - Commande de vitesse ou de phase au moyen des signaux de code reçus, les signaux ne contenant aucune information de synchronisation particulière en utilisant les transitions du signal reçu pour commander la phase de moyens générateurs du signal de synchronisation, p. ex. en utilisant une boucle verrouillée en phase
H03L 7/085 - Détails de la boucle verrouillée en phase concernant principalement l'agencement de détection de phase ou de fréquence, y compris le filtrage ou l'amplification de son signal de sortie
H03L 7/07 - Commande automatique de fréquence ou de phaseSynchronisation utilisant un signal de référence qui est appliqué à une boucle verrouillée en fréquence ou en phase utilisant plusieurs boucles, p. ex. pour la génération d'un signal d'horloge redondant
9.
APPARATUS AND METHOD FOR PHASE ADJUSTMENT OF RECEIVER FOR PAM SIGNALING
The present disclosure may provide an apparatus and a method for independent phase adjustment of a PAM receiver. The apparatus may comprise: a plurality of samplers configured to perform sampling for signal level determination of multilevel input data; a global clock source configured to provide a common sampling clock to the samplers; and a plurality of phase adjusters, each configured to adjust the phase of the common sampling clock so as to provide a sampling phase applied to a corresponding sampler. According to the present disclosure, even in a state where there are unsymmetric eye openings, reliable BER performance can be achieved by independently adjusting a sampling phase of a sampler corresponding to each eye opening.
H04L 25/49 - Circuits d'émissionCircuits de réception à conversion de code au transmetteurCircuits d'émissionCircuits de réception à pré-distorsionCircuits d'émissionCircuits de réception à insertion d'intervalles morts pour obtenir un spectre de fréquence désiréCircuits d'émissionCircuits de réception à au moins trois niveaux d'amplitude
H04L 7/033 - Commande de vitesse ou de phase au moyen des signaux de code reçus, les signaux ne contenant aucune information de synchronisation particulière en utilisant les transitions du signal reçu pour commander la phase de moyens générateurs du signal de synchronisation, p. ex. en utilisant une boucle verrouillée en phase
According to the present disclosure, an RF communication system using a bi-directional plastic waveguide link is suggested. The system may comprise: an RF transmitter configured to up-convert a transmission signal to a carrier frequency, and transmit same; an RF receiver configured to down-convert a reception signal received on the carrier frequency, and receive same; a bi-directional plastic waveguide device configured to provide a channel for transmission of the transmission signal and a channel for reception of the reception signal; and a microstrip-to-waveguide transition (MWT) configured to transfer a signal between the RF transmitter or the RF receiver and the bi-directional plastic waveguide device. The RF receiver may comprise: a phase detector configured to detect the phase of the down-converted reception signal by using a clock signal; and a phase synchronization device configured to adjust the phase of the clock signal on the basis of the detected phase. Through such configuration, the present disclosure may suggest a 50 Gb/s PAM4 bi-directional plastic waveguide link having carrier synchronization using a PI-based Costas loop, which can exhibit very excellent performance from the perspective of a throughput-distance and energy efficiency, compared to conventional technology.
H04L 7/027 - Commande de vitesse ou de phase au moyen des signaux de code reçus, les signaux ne contenant aucune information de synchronisation particulière en extrayant le signal d'horloge ou de synchronisation du spectre du signal reçu, p. ex. en utilisant un circuit résonnant ou passe-bande
H04L 7/00 - Dispositions pour synchroniser le récepteur avec l'émetteur
H04L 25/49 - Circuits d'émissionCircuits de réception à conversion de code au transmetteurCircuits d'émissionCircuits de réception à pré-distorsionCircuits d'émissionCircuits de réception à insertion d'intervalles morts pour obtenir un spectre de fréquence désiréCircuits d'émissionCircuits de réception à au moins trois niveaux d'amplitude
H04L 27/227 - Circuits de démodulationCircuits récepteurs utilisant une démodulation cohérente
H04B 3/52 - Systèmes de transmission entre stations fixes, au moyen de guides d'onde
11.
Waveguide including a first dielectric part covered in part by a conductive part and a second dielectric part surrounding the first dielectric part and the conductive part
According to one aspect of the invention, there is provided a waveguide for transmission of electromagnetic wave signals, comprising: a first dielectric part comprising a dielectric; a conductor part covering a part of the first dielectric part; and a second dielectric part surrounding the first dielectric part and the conductor part.
According to one aspect of the invention, there is provided a connector for connecting a waveguide and a board, comprising: a first opening part formed in a direction perpendicular to one side of a board and coupled to the one side of the board; a second opening part formed in a direction parallel to a longitudinal direction of a waveguide for signal transmission, wherein the waveguide is capable of being coupled to the second opening part; and a signal guide part connecting the first and second opening parts and including a hollowness surrounded by a conductive layer therein.
H01P 5/08 - Dispositifs de couplage du type guide d'ondes destinés au couplage de lignes ou de dispositifs de différentes sortes
H01P 5/18 - Dispositifs à accès conjugués, c.-à-d. dispositifs présentant au moins un accès découplé d'un autre accès consistant en deux guides couplés, p. ex. coupleurs directionnels
Disclosed is a chip-to-chip interface using a microstrip circuit and a dielectric waveguide. A board-to-board interconnection device, according to one embodiment of the present invention, comprises: a waveguide which has a metal cladding and transmits a signal from a transmitter-side board to a receiver-side board; and a microstrip circuit which is connected to the waveguide and has a microstrip-to-waveguide transition (MWT), wherein the microstrip circuit matches a microstrip line and the waveguide, adjusts the bandwidth of a predetermined first frequency band among the frequency bands of the signal, and provides same to the receiver.
The present invention relates to a phase synchronization device and, more specifically, to a stochastic RF phase synchronization system (SRFPS) for correcting a phase error of a recovered signal on the basis of an RF signal received through a receiver. The phase synchronization device according to one embodiment of the present invention comprises: a sampling unit for outputting a sampling value by sampling a recovered signal on the basis of a predetermined threshold voltage value; a phase shift control unit for calculating a cost value for the recovered signal by using a histogram function generated on the basis of the sampling value, and determining an optimal phase offset value on the basis of the cost value; and a phase shift unit for shifting the phase of an oscillation signal according to the optimal phase offset value.
The present invention relates to a waveguide for transmission of electromagnetic wave signals. According to one aspect of the invention, there is provided a waveguide for transmission of electromagnetic wave signals, comprising: a dielectric part comprising two or more dielectrics having different permittivity; and a conductor part surrounding at least a part of the dielectric part.
Disclosed is a chip-to-chip interface using a microstrip circuit and a dielectric waveguide. A board-to-board interconnection device, according to one embodiment of the present invention, comprises: a waveguide which has a metal cladding and transmits a signal from a transmitter-side board to a receiver-side board; and a microstrip circuit which is connected to the waveguide and has a microstrip-to-waveguide transition (MWT), wherein the microstrip circuit matches a microstrip line and the waveguide, adjusts the bandwidth of a predetermined first frequency band among the frequency bands of the signal, and provides same to the receiver.
H01P 3/16 - Guides d'ondes diélectriques, c.-à-d. sans conducteur longitudinal
H01P 5/08 - Dispositifs de couplage du type guide d'ondes destinés au couplage de lignes ou de dispositifs de différentes sortes
H01P 5/10 - Dispositifs de couplage du type guide d'ondes destinés au couplage de lignes ou de dispositifs de différentes sortes destinés au couplage de lignes ou de dispositifs équilibrés avec des lignes ou des dispositifs déséquilibrés
17.
Low power, high speed multi-channel chip-to-chip interface using dielectric waveguide
An exemplary embodiment of the present invention provides an improved dielectric waveguide named electrical fiber. The electrical fiber with a metal cladding may isolate the interference of the signals in other wireless channels and adjacent electrical fibers, which typically causes band-limitation problem, for a smaller radiation loss and better signal guiding to lower the total transceiver power consumption as the transmit distance increases. Also, the electrical fiber may have frequency independent attenuation characteristics to enable high data rate transfer with little or even without any additional receiver-side compensation due to vertical coupling of the electrical fiber and an interconnection device.
brevets
