A communication system is provided in the present invention, which includes a program controlled exchanger (1) connected with a conventional program controlled telephone network (9), and also includes a first data exchange card (2), a second data exchange card (3),a VOIP server (4) and a network telephone terminal (5). The said first data exchange card (2) is electrically connected with the program controlled exchanger (1), the said second data exchange card (3) is electrically connected with the VOIP server (4), the said first data exchange card (2) is connected with the second data exchange: card (3) through the network, and the said VOIP server (4) is connected with the network telephone: terminal (5) through the network. The communication system of the present invention can realize the intercommunication between the conventional telephone and the network telephone. The user can be found at any place through calling the same extension telephone set number to talk, the communication is free, and it can save much cost for company. The system is simply maintained, easily extended and changed without the complex maintenance work caused by the person changed frequently.
A damping fixation device for an in-vehicle hard disc which includes a base (1), a fixation bracket (2) for fixing the hard disc, and a damping means (9) using for supporting the fixation bracket (2) on the base (1). The damping means (9) is set between the base (1) and the fixation bracket (2). The device still includes a snap seat (6). It has a snap slot (60) on the snap seat (6) for holding the hard disc (7). On the fixation bracket (2) sets a slot (20). The snap seat (6) is located within the slot (20).
A clamp for debugging hard disk function contains a bottom device and a top device, and the bottom device contains a bottom board (1) and a second transfer circuit board (8) fixed on the bottom board (1); a general connector is set on the second transfer circuit board (8); a hard disk holding slot is set on the bottom board (1), when a hard disk is located in the hard disk holding slot, its front-end standard interface is plugged in the general connector; the top device contains a elastic connector fixed on the top device and located on the upper part of a bottom interface in the hard disk, the elastic connector contains multiple elastic probes, the elastic probes one to one corresponds to multiple bonding pads on the bottom interface of the hard disk and credibly elastically contacts them, using the clamp for debugging the hard disk function in the invention, because of the connection of the elastic connector and the bottom interface on the hard disk bottom, a magnetic head read write signal, etc which can not be accurately measured from the standard interface of the hard disk can be taken out from the bottom interface of the hard disk, therefore it is convenient to debug the hard disk function.
A control device for mounting screws on hard disk includes an electric screwdriver, an electric screwdriver controller connected with the electric screwdriver, a hard disk base, a step motor connected with the hard disk base and a step motor driving circuit, and also includes a counting control equipment connected to the electric screwdriver controller signal and to the step motor driving circuit signal for controlling the step motor self-running when the number of screws mounted on every hard disk has reached a preset value. As the control equipment is added to the control driver for mounting screws on the hard disk, the invention calculates the number of screws already screwed upo on each hard disk when the number of screws has already reached the preset value, and the counting control equipment controls the step motor self-running. Once an operator has finished processing a hard disk, he does not need to manually operate the step motor. The operator controls the step motor self-running via the counting control equipment and transmits the finished hard disk to the next working table, thus reducing the operation procedure.
A method measuring read/write head offset-parameter-table of hard disk magnetic head, includes the following steps: A: obtaining read/write head offset parameters of at least 2 magnetic tracks on hard disk by measurement. B: according to the read/write head offset parameters of the 2 magnetic tracks, computing the read/write head offset parameters of the starting and ending tracks of each area, obtaining the read/write head offset-parameter-table and writing the read/write head offset-parameter-table into hard disk. Because the relation between read/write head offset parameters of magnetic tracks on hard disk and read/write head offset parameters of the starting and ending tracks of each area can be computed through geometric relations, when measuring, read/write head offset parameters of only 2 magnetic tracks need to be measured, namely, only needing 2 times of writing/reading, then obtaining read/write head offset parameters of the starting and ending tracks of each area after computing and the computing time in a computer is much shorter than that of read/write measurement of magnetic head. Applying this measurement method, only a few read/write operations are needed, so measurement time is saved.
G11B 5/596 - Disposition or mounting of heads relative to record carriers with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following on disks
6.
A MOBILE HARD DISK CARTRIDGE CIRCUIT BOARD FIXATION METHOD AND A MOBILE HARD DISK CARTRIDGE
A mobile hard disk cartridge circuit board fixation method, wherein the fixation device in an end cap cannot produce a fixation effect when the end cap is not inserted in the cartridge body, whereas when the end cap is inserted in the cartridge body, said cartridge body interacts on the fixation device and causes it to lock the circuit board. A mobile hard disk cartridge is also provided, wherein the cartridge body encloses a cavity; the end cap has a fixation device which interacts with the cartridge body and locks the circuit board when the end cap is inserted in the cartridge body; the cartridge body has a extruded part which interacts with the fixation device and locks the circuit board, said extruded part is set in the cavity. The mobile hard disk cartridge adopting the technical solution of this invention can be disassembled conveniently and the clip can not easily be broken, because the extruded part is set in the cartridge body, and the end cap has a fixation device which can interact with the extruded part and lock the circuit board when the end cap is inserted in the cartridge body; the said fixation device does not lock the circuit board after the end cap is extracted from the cartridge body.
A mobile memory device is provided. The mobile memory device includes an interface adapter unit (2) and variable number of external hard disks (1). The external hard disk (1) connects the interface adapter unit (2). The interface adapter unit (2) includes an external hard disk interface, a computing device interface and a conversion module which is used for converting the external hard disk interface into the computing device interface.
A electromagnetic interference resistance method for mobile hard disk, the mobile hard disk comprises a hard disk (1) which has a electrically conductive shell, and a circuit board (2) which has a ground terminal, the shell of the hard disk (1) is electrically connected to the ground terminal of the circuit board (2). A mobile hard disk comprises a hard disk (1), a circuit board (2) which transforms the interface of the hard disk (1), and a case of the mobile hard disk, the hard disk (1) has mounting seats (11), the circuit board (2) has the ground terminal, the circuit board (2) and the hard disk (1) are fixed in the case of the mobile harddisk, the mobile hard disk also includes a connector, the connector has two terminals which conduct mutually, one of the two terminals electrically connects with the ground terminal of the circuit board (2), the other electrically connects with the mounting seat (11) of the hard disk (1). The mobile hard disk adopting the technical solution of the present invention sets the connector which electrically connects the ground terminal of the circuit board (2) to the shell of the hard disk (1) credibly, so the ability of electromagnetic interference resistance is improved.
An improved hard disk comprises a main body of hard disk (1) and a circuit board (7), the main body of hard disk (1) being fixed on the circuit board (7), further comprises a bridging unit (2) and a USB interface (3). The circuit board (7) fixing the main body of hard disk (1) thereon also fixes the USB interface (3) and the bridging unit (2). The main body of hard disk (1), the bridging unit (2) and the USB interface (3) are electrically connected in sequence.
G06F 3/00 - Input arrangements for transferring data to be processed into a form capable of being handled by the computerOutput arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
10.
A METHOD FOR ELIMINATING THE DISTURBING DUE TO ANOMALISTIC TRACK OF THE HARD DISK DRIVE
Disclosed is a method for eliminating the disturbing due to anomalistic track of a hard disk drive. The method includes: A) in the hard disk drive leaving factory test, the disturbing trace of the track of every position is inserted in the servo signal of the every position in digital form; B) in hard disk using, servo system subtracts the value of the disturbing trace inserted in the servo signal from the position value read by head and obtains the position value which actually needs to be traced by the head. As a result of inserting the disturbing trace of the track of every position in the servo signal of the every position in the hard disk drive leaving factory test, in hard disk using, servo system can subtract the value of the disturbing trace inserted in the servo signal from the position value read by the head and obtain the position value which actually needs to be traced by the head. Therefore, that approximately compensates the effect due to the track disturbing trace.
G11B 5/596 - Disposition or mounting of heads relative to record carriers with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following on disks
11.
ENCRYPTING METHOD FOR HARD DISK IN SET TOP BOX OF CABLE TELEVISION SYSTEM
An encrypting method for the hard disk in set top box of cable television system is disclosed. The method includes the following steps: the corresponding physical address being set to the cable television user; the exclusive recognition code being distributed to the user using the storage device based on the physical address; said recognition code arriving at the user side with the video-audio signal and being writted into the hard disk of the user side to downloading the video-audio signal when the recognition code in the video-audio signal being same as the hard disk recognition code. Using the method, video-audio data can only be saved inthe authenticated user side, and said hard disk can not be used in the other user side or the initiative apparatus so that the unique correspondence and security of the storage device can be maintained.
A magnetic disk drive for damping vibration and noise, includes a base (70) and a cover (10) to buckle the base (70).There are cambered protrusions (161) and cambered grooves (181) on the said cover (10) at intervals. Said cambered protrusions 161 and cambered grooves (181) are concentric circular arc or elliptical arc, and distribute continuously along the radial, said cambered protrusions (161) and cambered grooves (181) are formed to wavelike form, so as to increase the structural strength of the cover (10), avoid resonance of the cover caused by the vibration of the motor (72), and lower the noise generated by the magnetic disk drive while working.
A load apparatus for hard disk magnetic head assembly, which includes a base (3), a magnetic head assembly (6) attached to the base (3), and at least one load beam (10) mounted in the magnetic head assembly (6). A lift tab (12) extends from the end of each load beam (10), which is set adjacent to the end of load beam (10) upside or downside or in the plane of the end of load beam (10). The central lines (18) of each lift tab (12) lie in the vertical plane crossing the axis of the load beam (10), and the combination of the lift tab (12) and the load beam (10) also lies in the same vertical plane. A ramp (14) that is used for lifting the lift tab (12) is mounted in the base (3) too, and the lift tab (12) that contacts with the ramp (14) provides the lifting power used for load beam (10) in the vertical plane.
G11B 5/54 - Disposition or mounting of heads relative to record carriers with provision for moving the head into, or out of, its operative position or across tracks
A disk drive includes a base (10), a connector (30), and a control circuit board (11) under the base (10). The base (10) has a connecting opening (20), and seal gel adheres to the place around the connecting opening (20). One end of the connector (30) connects with the control circuit board (11) through the connecting opening (20) by its pins, and transfers the read/write data from the magnetic head to the control circuit. The connector (30) is fixed on the connecting opening (20) by two inosculating parts. Said fixation is made that treating the connecting line which connecting the two inosculating parts as a axis, and making the moment applied from seal gel at each side of the axis to the connector (30) balance or be counteracted. The control circuit board (11) is fixed under the connecting opening (20) by two fixing parts. Said fixation is made that treating the connecting line which connecting the two fixing parts as a axis, and making the moment applied from control circuit board (11) at each side of the axis to the connector (30) equate to each other or be counteracted, and prevent the connector (30) from tilting, and making the connection between the pins of the connector (30) and the control circuit board (11) have more stability.
A hard-disk includes a shell (1), a core (2), an interface commutator (41,42) and a sealing piece (51,52), in which, a hard-disk interface (C) with the size matching with said shell (1) is set on said shell (1) having a first containing space (A) therein; said core (2) is a small hard disc contained in said first containing space (A); said first containing space (A) is sealed by said sealing piece (51,52); said interface commutator (41,42) passes through said sealing piece (51,52) to commutate the interface of the core to that of the shell (1) from the first containing space (A).The present invention applies a shell with the size of the large disk and interface to seal the small disk for the second time to seal it in the shell and create a small internal operation environment to solve the problem of un-balance in air-tight or shatter in balance in the prior art easily.
A tape library assembling bed comprises: a table-board (11) ,supporters (12) and a plurality of rolling devices (13) ;said table-board (11) is horizontally supported over the supporters (12) ,said rolling devices (13) have at least a rolling direction along the longness of assembling bed,each of rolling devices (13) is fixed on the table-board (11) with vertically and horizontally equal spacing,in which rolling support face is upward and locates on the same plane.It has advantages that sets rolling devices (13) which arranged regularly on the assembling table-board (11) ,combines the functions of assembling table and transferring trolley together,enables to sequentially connect with each work station together in the form of extended assembling table,i.e.”assembling bed”,workpieces (A) can both accomplish assembling operations of the corresponding work station under the support of rolling devices (13) and transfer to the next work station through the rolling devices (13),saves time and steps of moving and transferring the workpieces (A) by operators ,makes transferring of the workpieces (A) more flexibly,conveniently and smoothly,and greatly improves productive efficiency.
A hard disk drive mounting method comprises: 1) locating a magnetic head groupware(3) on a clamp(2); 2) locating a magnet(1) on the clamp(2); 3) moving horizontally the magnet(1) to make the upper and lower magnetic blocks(11 12) of the magnet(1) which have been moved to a predetermined position be on the upper and lower sides of the magnetic head groupwares coil(35). Wherein, the magnet(1) dedicated for the hard disk drive includes the upper and lower magnetic blocks(11 12) the upper and lower magnetic blocks(11 12) are fixed in one piece and have a space for the magnetic head groupwares coil(35). By moving horizontally the whole magnet(1) and locating it on the magnetic head groupware(3) it simplifies the HDD assembly without complex clamp and damaging a disk.
A transferring interface and a vibration proof hard disk drive, wherein, the transferring interface is applied to connect the hard disk drive and to transmit data to an external device. Said transferring interface comprises a soft circuit board. Said soft circuit board comprises some soft strips such that when said hard disk drive is connected to the soft circuit board the soft strips can obtain a flexural allowance between the hard disk drive and the transferring interface, as a result a avulsion of the soft circuit board can be avoided.
A ramp in hard disc including a working part and a locating part, in which, said working part and the locating part are fixedly connected with each other or an integer, said working part has a slide for moving of a magnetic head, said locating part has a structure for installing and locating and a bottom face and two side faces, the bottom face is flat and the side faces have humps for location projecting over the surface and said bottom face and the humps make up of a locating structure of the ramp. This invention applies a structure of combining the bottom face contact and point contact of the side faces to locate the ramp to reduce the error brought with face locating greatly while assuring installation stability. The structure of hump location makes user feel easy to operate, and decision of being located or not can be made easily. The improvement of ramp locating precision is assured from structure.
G11B 5/54 - Disposition or mounting of heads relative to record carriers with provision for moving the head into, or out of, its operative position or across tracks
G11B 21/12 - Raising and loweringBack-spacing or forward-spacing along trackReturning to starting position
20.
MAGNETIC DISK DRIVE HAVING DISK STACK OF HIGH STABILITY
A magnetic disk drive having disk stack of high stability comprises of a chassis, a motor fixed on the chassis, a set of disks mounted rotatablely on the motor and a spacer. The motor includes a hub which extends to a shoulder. Each disk has a fixing hole and the spacer is arranged between the disks. The disks are supported on the shoulder by the fixing hole passing through the hub. The magnetic disk drive further includes a circular pressing sheet which has a fixing opening at its central position. A connecting means can pass through the fixing opening to connect the circular pressing sheet to the central position of the hub. The circular pressing sheet deforms identically in its radial direction to press on the surface of the top magnetic disk. Thus it can reduce the amount of magnetic disk deforming, and can avoid influencing the head reading/writing data or protect the head against damage.
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