Abstract: An Ethernet communication circuit includes: a current source; a first transistor coupled between a first node and a third node, and having a control terminal coupled with a first signal pin; a second transistor coupled between the first node and a fourth node, and having a control terminal coupled with a second signal pin; a third transistor coupled between a second node and the fourth node, and having a control terminal coupled with a third signal pin; a fourth transistor coupled between the second node and the third node, and having a control terminal coupled with a fourth signal pin; a first switch coupled between the third node and the current source; a second switch coupled between the fourth node and the current source; and a transconductance circuit for generating an output voltage according to the current passing through the first node and the current passing through the second node.

Abstract: A method for compensating mismatches of an in-phase signal and a quadrature signal of a transmitter/receiver is provided. The method includes: receiving a plurality of test signals to generate two groups of factors, respectively, where each group of factors is applied to two multipliers utilized for compensating a gain mismatch and a phase mismatch of the in-phase signal and the quadrature signal of the transmitter/receiver; then calculating a delay mismatch of the in-phase signal and the quadrature signal according to the two groups of factors.

Abstract: A signal amplifying circuit of a communication device is disclosed including: an amplifier comprising a first input terminal, a second input terminal, and an output terminal, wherein the input terminal is coupled with a fixed voltage level; a feedback circuit coupled with the second input terminal and the output terminal of the amplifier; a digital-to-analog converter (DAC); a signal processing circuit; a switch for selectively coupling the second input terminal of the amplifier with the DAC or the signal processing circuit; and a control unit coupled with the switch for controlling the operations of the switch.

Abstract: A wireless communication receiver includes a circuit, an analog-to-digital converter (ADC) and a processing circuit. The circuit receives a wireless signal and outputs an analog signal according to a gain index. The ADC converts the analog signal to a digital signal. The processing circuit adjusts the gain index according to a clipping number of the ADC.

Abstract: A method including receiving an input signal; amplifying the input signal to generate an output signal using a cascade of a plurality of amplifier stages including a first amplifier stage and a last amplifier stage; generating a voltage signal by sensing the output signal in a noninvasive manner so that the sensing results in substantially no change to the output signal; generating a current signal from the voltage signal using a transconductance amplifier; and injecting the current signal into an output node of the first amplifier stage in a noninvasive manner so that the injecting results in substantially no change to an amplification function of the first amplifier stage.

Abstract: An image processing device and method is disclosed. The image processing device includes a depth-of-interest (DOI) determining circuit and an image processing circuit. The DOI determining circuit generates a DOI distribution of the input image and corresponding depth information of the input image. The image processing circuit receives the input image and performs a predetermined image processing operation on the input image according to the DOI distribution to generate an output image.

Abstract: The disclosure provides an electronic device having network auto-switching functions and a network auto-switching method utilized in an electronic device. The electronic device comprises: a first network connecting unit having a first network transmission specification; and a second network connecting unit having a second network transmission specification different from the first network transmission specification. The network auto-switching method comprises: utilizing a detecting unit for detecting network connecting statuses of the first network connecting unit and the second network connecting unit to generate a detecting result; utilizing a network access unit for determining to select the first network connecting unit or the second network connecting unit to perform a network connecting operation or to not perform the network connecting operation at least according to the detecting result.

Abstract: An image depth generation device and method thereof is disclosed in the present invention. The device includes at least a processing circuit and at least a calculator. The processing circuit receives an input image and determines a visual distance of a pixel Pi according to a color of the pixel in the input image and at least a reference value to generate a depth offset of each pixel. The calculator is coupled to the processing circuit and uses the depth offset of each pixel and a predetermined depth to generate an output depth value of each pixel in the input image.

Abstract: An integrated circuit test model is generated according to a circuit connection net-list, an isolation cell topology, and a pin voltage information spec file, so that the procedure of generating the integrated circuit test model can be time-saving, efficient, and fool-proof. Besides, while tracing a current path of a node of the circuit connection net-list, the generated integrated circuit test model can be more precise if certain limitations are added.

Abstract: A wireless communication circuit for a wireless communication device having a plurality of antennas is disclosed. The wireless communication circuit includes: a transceiver for receiving and transmitting network packets; a control circuit for controlling the switching circuit to switch the transceiver among the antennas so that the transceiver receives the preamble of a first network packet; and a receiving signal strength detector for detecting the receiving signal strength value of respective antennas in respective receiving periods during the reception of the preamble conducted by the transceiver. If the receiving signal strength value of each antenna is less than a predetermined threshold, the control circuit selects an antenna with the maximum receiving strength value as a target antenna and controls the switching circuit to couple the transceiver to the selected target antenna so that the transceiver receives the rest of the first network packet through the target antenna.

Abstract: A transmitting method and transmission system using the same is applied to selectively use a space block-coding module to transmit a transmitted data. Each data stream of the transmission data is transmitted using the transmitting paths, and the transmission qualities of the transmitting paths are detected to decide whether the space-block encoding module works or not.

Abstract: The present invention provides an auto-detection control apparatus, which receives an electric power from one of a system power source signal and an external device and performs a detection when coupled to the external device. The apparatus comprises a detection module, a power management module and a control module. The detection module generates a first result based on whether a first power signal from the external device exists, wherein the first result is related to whether the external device provides an electricity to itself. The power management module prevents a conflict between the system power source signal and the first power signal. The control module determines whether the electric power is supplied to the external device by the power management module based on the first result.

Abstract: A method for cleaning a cache of a processor includes: generating a specific command according to a request, wherein the specific command includes an operation command, a first field and a second field; obtaining an offset and a starting address according to the first field and the second field; selecting a specific segment from the cache according to the starting address and the offset; and cleaning data stored in the specific segment.

Abstract: Charge pump feedback control device and method are provided. The device is coupled to the charge pump unit which receives an input voltage so as to generate an output voltage and has switches and at least one capacitor, the device includes: a compensation unit, a modulation unit, and a phase control unit. The compensation unit receives the output voltage, compensates the output voltage for stability, and generates an error signal. The modulation unit receives the error signal, modulates the error signal, and correspondingly generates a modulation signal. The phase control unit receives the modulation signal so as to generate phase signal, and controls the plurality of switches of the charge pump unit according to the plurality of phase signal so as to generate the output voltage through the input voltage charging/discharging at least one capacitor of the charge pump unit.

Abstract: A charge pump circuit and power-supply method for dynamically adjusting output voltage is related to the charge pump circuit having three power-supply modes with different power conversion efficiencies. When supplying power, a pump unit controls the electrical connecting relations of a first flying capacitor, second flying capacitor, first storage capacitor and second storage capacitor through a first clock and second clock with non-overlapping working phases, to convert a source voltage into a positive output voltage and negative output voltage, thereby providing one of the three power-supply modes.

Abstract: In one embodiment, a SAR (successive-approximation register) ADC (analog-to-digital converter) comprising: a plurality of capacitors, a switch controlled by a sampling signal for connecting a common node to a ground node when the sampling signal is asserted; a plurality of switching networks controlled by the sampling signal and a plurality of control bits comprising a respective grounding bit and a respective data bit, each of the plurality of switching networks for connecting a bottom plate of a respective capacitor to an analog input signal, a ground node, a first reference voltage, or a second reference voltage depending on the asserted signal or bit; a comparator for detecting a polarity of a voltage at the common node and outputting a binary decision along with a complementary binary decision when a comparing signal is asserted; a logic gate for receiving the binary decision and the complementary binary decision and outputting a ready signal indicating whether a decision is readily made; a timer for rec

Abstract: A network communication device and printed circuit board are provided with transient energy protection. The network communication device includes a transceiver, a transformer, a connector, a spark gap, and a transient energy trigger circuit. The transformer is coupled between the transceiver and the connector. The spark gap and the transient energy trigger circuit are coupled in parallel, between the transformer and a ground end. Alternatively, the spark gap and the transient energy trigger circuit are coupled in parallel, between any two of differential signal lines of the transformer. The spark gap and the transient energy trigger circuit provide a multi-path structure for conducting away the transient energy. A first transient energy is conducted to the ground end through the transient energy trigger circuit, while a second transient energy is conducted to the ground end through the spark gap.

Abstract: A network access device is disclosed, having a transceiving circuit, a demodulation circuit, and a control circuit. The transceiving circuit is used to receive network signals. The demodulation circuit is coupled with the transceiving circuit and used to generate data frames according to the network signals. The control circuit is coupled with the demodulation circuit and used to wake up one or more components of an electronic device when at least two fields of the data frame match predetermined values, or when the data frames are received in a predetermined order.

Abstract: A switched beam smart antenna apparatus is disclosed including: a first, a second, a third, and a fourth beam adjusting elements substantially perpendicular to a substrate; a radiation strip positioned within an area surrounded by the first to fourth beam adjusting elements and substantially perpendicular to the substrate; a first beam control module positioned between the first beam adjusting element and the substrate; a second beam control module positioned between the second beam adjusting element and the substrate; a third beam control module positioned between the third beam adjusting element and the substrate; and a fourth beam control module positioned between the fourth beam adjusting element and the substrate. When the first beam control module turns on the first beam adjusting element, at least one of the second through the fourth beam control modules turns off corresponding beam adjusting element.

Abstract: A phase interpolator, multi-phase interpolation device, interpolated clock generating method and multi-phase clock generating method is related to a phase interpolator with a differential to single-ended converter, a load circuit, two differential pairs, a current source and at least a switch pair. By using the switch pair to control the current providing for the two differential pairs from the current source, and through regulating the load of the load circuit and/or the reference current of the current source, the intersection of a first signal and a second signal is in the overlap duration between a first input clock and a second input clock, so that uniform multi-phase output clock signal can be interpolated.