Abstract: An antenna module includes two antennas, a reflecting board, and a plurality of extending plates. The extending plate has a first surface and a second surface. The first surface extends along a first axis and a second axis perpendicular to the first axis. The two antennas are disposed on the first surface and spaced along the first axis. A spacing zone is defined in the reflecting board and located between the two antennas along the first axis. The spacing zone has a shielding portion. A periphery of the shielding portion has a plurality of open grooves. Each open groove penetrates through the first surface and the second surface. The shielding portion has a plurality of side edges, wherein each side edge is adjacent to each open groove. Each extending plate extends towards the second surface. The shielding portion and the extending plates jointly form a shielding cover.

Abstract: An electronic device includes a case engaged with a cable fixing device. The cable fixing device includes at least one first restricting portion and a fixing frame which are connected to the case. The fixing frame could be moved relative to the case between a first position and a second position. The fixing frame has at least one hollow portion for being passed through by a cable and at least one second restricting portion disposed on a peripheral edge of the hollow portion. When the fixing frame is located in the first position, the second restricting portion is away from the first restricting portion. When the fixing frame is located in the second position, the second restricting portion is closer to the first restricting portion than the fixing frame located in the first position. The second restricting portion and first restricting portion jointly restrict a position of the cable.

Abstract: Systems and methods for detecting the presence and/or location of defects (e.g., incomplete solders, broken cables, misconnections, defective sockets, opens, shorts, etc.) along electrical lines are described. The systems and methods described herein may use time-domain reflectometry (TDR), a measurement technique used to determine the characteristics of electrical lines by observing reflected waveforms. TDR may be performed in some embodiments by determining the times when a first event and a second event occur, and by determining the space traveled by a probe signal based on these times. The first event may occur when a first signal transition crosses a first threshold and the second event may occur when a second signal transition crosses a second threshold, where the second signal transition may arise in response to the first signal transition reflecting against a defect along the electrical line.

Abstract: A driver circuit is provided. The driver circuit includes a differential driver, a first feedback passive circuit and a second feedback passive circuit. The differential driver includes a first half circuit and a second half circuit. The first half circuit has a first input point and a first output point. The second half circuit has a second input point and a second output point. The first feedback passive circuit is coupled to the second input point and the first output point. The second feedback passive circuit is coupled to the first input point and the second output point.

Abstract: Systems and methods for detecting the presence and/or location of defects (e.g., incomplete solders, broken cables, misconnections, defective sockets, opens, shorts, etc.) along electrical lines are described. The systems and methods described herein may use time-domain reflectometry (TDR), a measurement technique used to determine the characteristics of electrical lines by observing reflected waveforms. TDR may be performed in some embodiments by determining the times when a first event and a second event occur, and by determining the space traveled by a probe signal based on these times. The first event may occur when a first signal transition crosses a first threshold and the second event may occur when a second signal transition crosses a second threshold, where the second signal transition may arise in response to the first signal transition reflecting against a defect along the electrical line.

Abstract: A driver circuit is provided. The driver circuit includes a differential driver, a first feedback passive circuit and a second feedback passive circuit. The differential driver includes a first half circuit and a second half circuit. The first half circuit has a first input point and a first output point. The second half circuit has a second input point and a second output point. The first feedback passive circuit is coupled to the second input point and the first output point. The second feedback passive circuit is coupled to the first input point and the second output point.

Abstract: A driver circuit for receiving a data input and generating an output signal to a termination element according to at least the first data input is provided. The driver circuit includes a first output terminal, a current mode drive unit and a voltage mode drive unit. The current mode drive unit is arranged for selectively outputting a first reference current from the first output terminal to the termination element according to the first data input, and selectively receiving the first reference current through the first output terminal according to the first data input. The voltage mode drive unit is arranged for coupling one of a first reference voltage and a second reference voltage different from the second reference voltage to the first output terminal according to the first data input.

Abstract: An inductor module comprising: a first inductor, comprising a first inductor area; and a second inductor, comprising a second inductor area. A first overlapped area of the first inductor area and a second overlapped area of the second inductor area are overlapped. The second overlapped area comprises at least one first magnetic direction area and at least one second magnetic direction area. A ratio between a size of the first magnetic direction area and a size of the second magnetic direction area is a predetermined ratio such that a coupling effect between the first inductor and the second inductor is lower or equals to a predetermined value.

Abstract: A driver circuit for receiving input data and generating an output signal to a termination element is disclosed, wherein the input data has a first bit and second bit, and the driver circuit includes: a pair of differential output terminals, arranged for outputting the output signal, wherein the pair of differential output terminals has a first output terminal and a second output terminal; a current mode drive unit, coupled to the pair of differential output terminals, for outputting a current from one of the first output terminal and the second output terminal, and receiving the current from the other of the first output terminal and the second output terminal according to the first bit; and a voltage mode drive unit, coupled to the pair of differential output terminals, for providing voltages to the first output terminal and the second output terminal according to at least the second bit.

Abstract: A driver circuit for receiving input data and generating an output signal to a termination element is provided, wherein the input data has a first bit and second bit, and the driver circuit includes: a pair of differential output terminals for outputting the output signal, wherein the pair of differential output terminals has a first output terminal and a second output terminal; at least one current mode drive unit, coupled to the pair of differential output terminals, for outputting a current from one of the first output terminal and the second output terminal, and receiving the current from the other of the first output terminal and the second output terminal according to the first bit; and at least one voltage mode drive unit, coupled to the pair of differential output terminals, for providing voltages to the first output terminal and the second output terminal according to the second bit.

Abstract: A detecting circuit includes: a testing signal generator, arranged to selectively generate a testing signal having a first signal edge or a second signal edge to a connecting port; and a detector, arranged to detect a first detect signal on the connecting port after the testing signal having the first signal edge is coupled to the connecting port, and to detect a second detect signal on the connecting port after the testing signal having the second signal edge is coupled to the connecting port; wherein the detector is further arranged to determine if an external circuit element is coupled between the connecting port and a reference voltage according to the first detect signal and the second detect signal.

Abstract: A driver circuit for receiving input data and generating an output signal to a termination element is provided, wherein the input data has a first bit and second bit, and the driver circuit includes: a pair of differential output terminals for outputting the output signal, wherein the pair of differential output terminals has a first output terminal and a second output terminal; at least one current mode drive unit, coupled to the pair of differential output terminals, for outputting a current from one of the first output terminal and the second output terminal, and receiving the current from the other of the first output terminal and the second output terminal according to the first bit; and at least one voltage mode drive unit, coupled to the pair of differential output terminals, for providing voltages to the first output terminal and the second output terminal according to the second bit.

Abstract: A driver circuit for receiving a data input and generating an output signal to a termination element according to at least the first data input is provided. The driver circuit includes a first output terminal, a current mode drive unit and a voltage mode drive unit. The current mode drive unit is arranged for selectively outputting a first reference current from the first output terminal to the termination element according to the first data input, and selectively receiving the first reference current through the first output terminal according to the first data input. The voltage mode drive unit is arranged for coupling one of a first reference voltage and a second reference voltage different from the second reference voltage to the first output terminal according to the first data input.

Abstract: A driver circuit for receiving input data and generating an output signal to a termination element is disclosed, wherein the input data has a first bit and second bit, and the driver circuit includes: a pair of differential output terminals, arranged for outputting the output signal, wherein the pair of differential output terminals has a first output terminal and a second output terminal; a current mode drive unit, coupled to the pair of differential output terminals, for outputting a current from one of the first output terminal and the second output terminal, and receiving the current from the other of the first output terminal and the second output terminal according to the first bit; and a voltage mode drive unit, coupled to the pair of differential output terminals, for providing voltages to the first output terminal and the second output terminal according to at least the second bit.

Abstract: A driver circuit for receiving a data input and generating an output signal according to at least the data input is provided. The driver circuit includes a pair of differential output terminals, a current mode drive unit and a voltage mode drive unit. The pair of differential output terminals has a first output terminal and a second output terminal. The current mode drive unit is arranged for outputting a first reference current from one of the first and second output terminals and receiving the first reference current from the other of the first and the second output terminals according to the first data input. The voltage mode drive unit is arranged for coupling a first reference voltage to one of the first and the second output terminals and coupling a second reference voltage to the other of the first and the second output terminals according to the first data input.

Abstract: A transformer has two magnetic cores, at least one primary winding unit mounted in the magnetic cores, at least one secondary winding unit mounted in the magnetic cores and two rectifying circuit boards externally mounted beside the magnetic cores. An AC voltage output from the secondary winding unit is transmitted to and rectified by the rectifying circuit board. Therefore, the size of the transformer is compact, and heat energy generated by electronic elements mounted on the rectifying circuit board is effectively dissipated to maintain normal operation of the transformer. Further, since the transmission path from the secondary winding unit to the rectifying circuit board is short, energy loss is reasonably reduced when the transformer is operated under a high frequency situation or a larger current mode.

Abstract: A driver circuit for receiving a data input and generating an output signal according to at least the data input is provided. The driver circuit includes a pair of differential output terminals, a current mode drive unit and a voltage mode drive unit. The pair of differential output terminals has a first output terminal and a second output terminal. The current mode drive unit is arranged for outputting a first reference current from one of the first and second output terminals and receiving the first reference current from the other of the first and the second output terminals according to the first data input. The voltage mode drive unit is arranged for coupling a first reference voltage to one of the first and the second output terminals and coupling a second reference voltage to the other of the first and the second output terminals according to the first data input.

Abstract: A detecting circuit includes: a testing signal generator, arranged to selectively generate a testing signal having a first signal edge or a second signal edge to a connecting port; and a detector, arranged to detect a first detect signal on the connecting port after the testing signal having the first signal edge is coupled to the connecting port, and to detect a second detect signal on the connecting port after the testing signal having the second signal edge is coupled to the connecting port; wherein the detector is further arranged to determine if an external circuit element is coupled between the connecting port and a reference voltage according to the first detect signal and the second detect signal.

Abstract: A signal swing trimming apparatus calibrates a swing level of an output signal generated from a transmitting device to a receiving device including: a comparing device coupled to the output signal for comparing the swing level of the output signal with a target swing level and generating a comparison output signal, and an adjusting device coupled to the comparing device and the transmitting device for controlling the transmitting device to adjust the swing level of the output signal according to the comparison output signal, wherein the signal swing trimming apparatus is configured to calibrate the swing level of the output signal during a hand-shake process between the transmitting device and the receiving device.