摘要:
A communication apparatus is disclosed including: an analog-front-end circuit for receiving and processing an analog input signal; an analog-to-digital converter (ADC) coupled with the analog-front-end circuit for converting processed signal from the analog-front-end circuit into a digital input signal; and a control unit coupled with the ADC for adjusting at least one resistance and/or at least one capacitance in an analog echo cancellation circuit according to the digital input signal before the analog-front-end circuit receives a training sequence that is the first training sequence transmitted from a second communication apparatus after the second communication apparatus begins communicating with the communication apparatus.
摘要:
A communication signal receiver includes an adder, a slicer, and an infinite impulse response (IIR) filter. The adder performs an addition on a first signal and a filtered signal to generate an output signal. The slicer performs a hard decision on the output signal to generate a detecting result. The IIR filter is coupled to the slicer and the adder for processing the output signal to generate the filtered signal. The communication signal receiver further includes a decoder. The decoder receives and decodes the output signal to generate a decoded output signal, wherein the decoder is a Viterbi decoder.
摘要:
A network device includes a first transceiver unit, a second transceiver unit and a control unit. The first transceiver unit is utilized for processing a data corresponding to a first physical (PHY) layer via a first interface. The second transceiver unit is utilized for processing a data corresponding to a second PHY layer via a second interface. The control unit is utilized for processing a data corresponding to a media access control (MAC) layer, wherein the control unit connects with at least one of the first transceiver unit and the second transceiver unit with reference to a connection scheme.
摘要:
A communication signal receiver includes an adder, a slicer, and an infinite impulse response (IIR) filter. The adder performs an addition on a first signal and a filtered signal to generate an output signal. The slicer performs a hard decision on the output signal to generate a detecting result. The IIR filter is coupled to the slicer and the adder for processing the output signal to generate the filtered signal. The communication signal receiver further includes a decoder. The decoder receives and decodes the output signal to generate a decoded output signal, wherein the decoder is a Viterbi decoder.
摘要:
A network device includes a first transceiver unit, a second transceiver unit and a control unit. The first transceiver unit is utilized for processing a data corresponding to a first physical (PHY) layer via a first interface. The second transceiver unit is utilized for processing a data corresponding to a second PHY layer via a second interface. The control unit is utilized for processing a data corresponding to a media access control (MAC) layer, wherein the control unit connects with at least one of the first transceiver unit and the second transceiver unit with reference to a connection scheme.
摘要:
The disclosure provides an electronic device and a network access module. The electronic device comprises: a multimedia processing module and a network access module. The multi-media processing module comprises a first network control circuit, and the network access module comprises: a second network control circuit, a third network control circuit, at least a fourth network control circuit, a network transmission unit, and a multiplexer. The multiplexer is utilized for selecting at least a multimedia connecting port from a plurality of multimedia connecting ports to connect to the at least a fourth network control circuit, so as to make at least a multimedia device connected to the at least a multimedia connecting port to connect to an external network and access the external network via the at least a fourth network control circuit, the network transmission unit, the third network control circuit, and the network connecting port.
摘要:
A data transmitting and receiving device and method are used for saving powers and maintaining the connection quality, stability and continuous link. The method includes the step of gradually adjusting the de-emphasis of the signal transmitted from the data transmitting and receiving device according to the setting value thereof. The method also includes the steps of transmitting training sequence signal with an amplitude and the default de-emphasis by the data transmitting and receiving device to the remote device, receiving the training sequence signal from the remote device, thereby the channel attenuation is estimated using the method, and a better de-emphasis is set up. Then, the data transmitting and receiving device gradually increases the amplitude of the training sequence signal and re-transmits it until the remote device receives the training sequence signal transmitted therefrom.
摘要:
A data transmitting and receiving device and method are used for saving powers and maintaining the connection quality, stability and continuous link. The method includes the step of gradually adjusting the de-emphasis of the signal transmitted from the data transmitting and receiving device according to the setting value thereof. The method also includes the steps of transmitting training sequence signal with an amplitude and the default de-emphasis by the data transmitting and receiving device to the remote device, receiving the training sequence signal from the remote device, thereby the channel attenuation is estimated using the method, and a better de-emphasis is set up. Then, the data transmitting and receiving device gradually increases the amplitude of the training sequence signal and re-transmits it until the remote device receives the training sequence signal transmitted therefrom.
摘要:
A transceiver includes a transceiver and a clock generation unit. The clock generation unit includes a clock generator, a multiplexer, and a frequency difference detector. The transceiver exchanges data with a link partner according to a first clock generated by a phase-locked loop. The clock generator is used for generating and outputting a second clock. The multiplexer is used for receiving a calibration clock or a receiver clock of the link partner, and outputting the calibration clock or the receiver clock of the link partner. The frequency difference detector is used for generating a difference signal according to a difference between the calibration clock and the second clock, or a difference between the receiver clock of the link partner and the second clock. The clock generator adjusts the shift of the second clock according to the difference signal. The phase-locked loop generates the first clock according to the second clock.
摘要:
A method for a mobile station to provide to a base station feedback of channel state information (CSI) regarding a plurality of communication channels between the mobile station and the base station. The method includes: estimating the CSI by calculating a plurality of channel responses each for one of the communication channels; compressing the estimated CSI; and sending the compressed CSI as the feedback to the base station.