公开(公告)号：US08368458B2

公开(公告)日：2013-02-05

申请号：US13038387

申请日：2011-03-02

Applicant: Ting-Ko Liao ,  Tsu-Chun Liu

Inventor： Ting-Ko Liao ,  Tsu-Chun Liu

IPC: G05F1/10 ,  G05F3/02

CPC classification number: H03H7/38

Abstract: An impendence tuning apparatus is disclosed. The impendence tuning apparatus includes an operation amplifier, a reference resistor, a tuned resistor, a switching module, a current generator, a current detector and a controller. A first input terminal of the operation amplifier receives a basic voltage and the second terminal of the operation amplifier coupled to a first end. The switching module receives a control and coupled the first end to the tuned resistor or the reference resistor accordingly for generating a tuned current or a reference current separately. The current generator receives and mirrors the reference current or the tuned current to generate a first current and a second current. The current detector receives the first and the second currents and outputs current values the first and the second currents to the controller. The controller tunes an impendence of the tuned resistor according to the first and the second currents.

Abstract translation: 公开了一种阻抗调节装置。 阻抗调节装置包括运算放大器，参考电阻器，调谐电阻器，开关模块，电流发生器，电流检测器和控制器。 运算放大器的第一输入端子接收基本电压，并且运算放大器的第二端耦合到第一端。 开关模块接收控制，并将第一端耦合到调谐电阻器或参考电阻器，以分别产生调谐电流或参考电流。 电流发生器接收并镜像参考电流或调谐电流以产生第一电流和第二电流。 电流检测器接收第一和第二电流，并将第一和第二电流的电流值输出到控制器。 控制器根据第一和第二电流调谐调谐电阻的阻抗。

公开(公告)号：US08295476B2

公开(公告)日：2012-10-23

申请号：US12259796

申请日：2008-10-28

Applicant: Tsu-Chun Liu

Inventor： Tsu-Chun Liu

IPC: H04M9/08

CPC classification number: H04B3/23

Abstract: An echo canceller and an echo cancellation method are provided. In the echo cancellation method, a transmitting data sequence is received, and M taps are provided accordingly. In addition, the M taps are received, and N taps are output according to an echo distribution information, in which the M and N are natural numbers, and M>N. Besides, the N taps are multiplied by N tap coefficients respectively to generate N products. Further, the N products are summed up to generate an echo cancellation signal. Thereby, the cost of the echo cancellation is decreased.

Abstract translation: 提供回声消除器和回声消除方法。 在回波消除方法中，接收发送数据序列，并相应地提供M个抽头。 另外，接收M个抽头，根据回波分布信息输出N个抽头，其中M和N是自然数，M> N。 此外，N个抽头分别乘以N个抽头系数，以产生N个乘积。 此外，总结N个乘积以产生回波消除信号。 因此，回波抵消的成本降低。

公开(公告)号：US08229038B2

公开(公告)日：2012-07-24

申请号：US12265987

申请日：2008-11-06

Applicant: Tsu-Chun Liu

Inventor： Tsu-Chun Liu

IPC: H04L27/06 ,  H03D1/00

CPC classification number: H04L27/01 ,  H04L1/0053 ,  H04L1/201

Abstract: A transceiver apparatus, a receiver and a power saving method thereof are provided. The receiver includes an analog-to-digital converter, an equalizer, a slicer, a delay unit, a decoder, a select unit and a control unit. The analog-to-digital converter transforms a received signal into a digital signal. The equalizer adjusts the digital signal to generate an equalized signal. The slicer receives and slices the equalized signal and generates a sliced signal. The delay unit delays the sliced signal. The decoder determines whether to decode the equalized signal or not according the control signal. The select unit selects one of the output of the delayed sliced signal and the output of the decoder to be an output signal according to a second control signal. The control unit determines whether to enable the control signal and the second control signal according to the state of the sliced signal and the output signal.

Abstract translation: 提供收发器装置，接收器和省电方法。 接收机包括模数转换器，均衡器，限幅器，延迟单元，解码器，选择单元和控制单元。 模数转换器将接收的信号转换为数字信号。 均衡器调整数字信号以产生均衡的信号。 切片器接收并切片均衡信号并产生切片信号。 延迟单元延迟切片信号。 解码器根据控制信号确定是否解码均衡信号。 选择单元根据第二控制信号选择延迟分片信号的输出和解码器的输出之一作为输出信号。 控制单元根据分片信号和输出信号的状态确定是否启用控制信号和第二控制信号。

公开(公告)号：US20080101337A1

公开(公告)日：2008-05-01

申请号：US11555203

申请日：2006-10-31

Applicant: Tsu-Chun Liu

Inventor： Tsu-Chun Liu

IPC: H04L12/66

CPC classification number: H04L12/66

Abstract: A novel physical layer circuit enables the computer equipments in connection with the invented physical layer circuit to transmit and to receive data through the telephone cord. The physical layer circuit may be provided in a network interface chipset and comprises an encoder circuit, a transmitter circuit, a receiving filter, an analog to digital converter, a clock signal generator and a decoder circuit. The present invention also discloses the network interface chipset that contains the physical layer circuit, the local area communications system using the network interface chipset.

Abstract translation: 新颖的物理层电路使得与本发明的物理层电路相连的计算机设备能够通过电话线传输和接收数据。 物理层电路可以设置在网络接口芯片组中，并且包括编码器电路，发射机电路，接收滤波器，模数转换器，时钟信号发生器和解码器电路。 本发明还公开了包含物理层电路的网络接口芯片组，使用网络接口芯片组的局域通信系统。

公开(公告)号：US20120154027A1

公开(公告)日：2012-06-21

申请号：US13038387

申请日：2011-03-02

Applicant: Ting-Ko Liao ,  Tsu-Chun Liu

Inventor： Ting-Ko Liao ,  Tsu-Chun Liu

IPC: G05F3/02

CPC classification number: H03H7/38

Abstract: An impendence tuning apparatus is disclosed. The impendence tuning apparatus includes an operation amplifier, a reference resistor, a tuned resistor, a switching module, a current generator, a current detector and a controller. A first input terminal of the operation amplifier receives a basic voltage and the second terminal of the operation amplifier coupled to a first end. The switching module receives a control and coupled the first end to the tuned resistor or the reference resistor accordingly for generating a tuned current or a reference current separately. The current generator receives and mirrors the reference current or the tuned current to generate a first current and a second current. The current detector receives the first and the second currents and outputs current values the first and the second currents to the controller. The controller tunes an impendence of the tuned resistor according to the first and the second currents.

Abstract translation: 公开了一种阻抗调节装置。 阻抗调节装置包括运算放大器，参考电阻器，调谐电阻器，开关模块，电流发生器，电流检测器和控制器。 运算放大器的第一输入端子接收基本电压，并且运算放大器的第二端耦合到第一端。 开关模块接收控制，并将第一端耦合到调谐电阻器或参考电阻器，以分别产生调谐电流或参考电流。 电流发生器接收并镜像参考电流或调谐电流以产生第一电流和第二电流。 电流检测器接收第一和第二电流，并将第一和第二电流的电流值输出到控制器。 控制器根据第一和第二电流调谐调谐电阻的阻抗。

公开(公告)号：US08107889B2

公开(公告)日：2012-01-31

申请号：US12208861

申请日：2008-09-11

Applicant: Tsu-Chun Liu

Inventor： Tsu-Chun Liu

IPC: H04B1/38

CPC classification number: H04W52/242 ,  H04B2001/0416 ,  H04W52/246

Abstract: A transceiver device and a power saving method thereof are provided. The transceiver device includes an attenuation estimation module, a transmitter, and a control module. The attenuation estimation module is coupled to a transmission path for estimating an attenuation value caused when a signal passes through the transmission path. The transmitter is coupled to the transmission path, for outputting a transmission signal. The control module is coupled to the attenuation estimation module and the transmitter. When the attenuation value is smaller than a default value, the output power of the transmitter is adjusted to be lower. Thereby, the power consumption of the transceiver device is decreased.

Abstract translation: 提供收发器装置及其省电方法。 收发器装置包括衰减估计模块，发射器和控制模块。 衰减估计模块耦合到用于估计当信号通过传输路径时引起的衰减值的传输路径。 发射机耦合到传输路径，用于输出传输信号。 控制模块耦合到衰减估计模块和发射机。 当衰减值小于默认值时，变送器的输出功率被调整为较低。 从而，收发器装置的功耗降低。

公开(公告)号：US08081931B2

公开(公告)日：2011-12-20

申请号：US12206916

申请日：2008-09-09

Applicant: Tsu-Chun Liu

Inventor： Tsu-Chun Liu

IPC: H04B1/38

CPC classification number: H03H7/40

Abstract: A transceiver device and an impedance matching method are provided. In the impedance matching method, a plurality of matching modes is set. Each matching mode includes a default impedance and a corresponding default power. In addition, one of the matching modes is selected for outputting a transmission signal to a load. Besides, a response signal derived from the transmission signal is received. Further, whether the default impedance is matched with an impedance of the load or not is determined according to a parameter of the response signal. Thereby, the echo signal can be restrained from being generated.

Abstract translation: 提供收发器装置和阻抗匹配方法。 在阻抗匹配方法中，设定多个匹配模式。 每个匹配模式包括默认阻抗和相应的默认功率。 此外，选择一种匹配模式用于将传输信号输出到负载。 此外，接收从发送信号导出的响应信号。 此外，根据响应信号的参数确定默认阻抗是否与负载的阻抗匹配。 从而可以抑制回波信号的产生。

公开(公告)号：US20100086011A1

公开(公告)日：2010-04-08

申请号：US12265987

申请日：2008-11-06

Applicant: TSU-CHUN LIU

Inventor： TSU-CHUN LIU

IPC: H04B1/38 ,  H04L27/06 ,  H03D1/00

CPC classification number: H04L27/01 ,  H04L1/0053 ,  H04L1/201

Abstract: A transceiver apparatus, a receiver and a power saving method thereof are provided. The receiver includes an analog-to-digital converter, an equalizer, a slicer, a delay unit, a decoder, a select unit and a control unit. The analog-to-digital converter transforms a received signal into a digital signal. The equalizer adjusts the digital signal to generate an equalized signal. The slicer receives and slices the equalized signal and generates a sliced signal. The delay unit delays the sliced signal. The decoder determines whether to decode the equalized signal or not according the control signal. The select unit selects one of the output of the delayed sliced signal and the output of the decoder to be an output signal according to a second control signal. The control unit determines whether to enable the control signal and the second control signal according to the state of the sliced signal and the output signal.

Abstract translation: 提供收发器装置，接收器和省电方法。 接收机包括模数转换器，均衡器，限幅器，延迟单元，解码器，选择单元和控制单元。 模数转换器将接收的信号转换为数字信号。 均衡器调整数字信号以产生均衡的信号。 切片器接收并切片均衡信号并产生切片信号。 延迟单元延迟切片信号。 解码器根据控制信号确定是否解码均衡信号。 选择单元根据第二控制信号选择延迟分片信号的输出和解码器的输出之一作为输出信号。 控制单元根据分片信号和输出信号的状态确定是否启用控制信号和第二控制信号。

公开(公告)号：US20100029217A1

公开(公告)日：2010-02-04

申请号：US12208861

申请日：2008-09-11

Applicant: Tsu-Chun Liu

Inventor： Tsu-Chun Liu

IPC: H04B1/38

CPC classification number: H04W52/242 ,  H04B2001/0416 ,  H04W52/246

Abstract: A transceiver device and a power saving method thereof are provided. The transceiver device includes an attenuation estimation module, a transmitter, and a control module. The attenuation estimation module is coupled to a transmission path for estimating an attenuation value caused when a signal passes through the transmission path. The transmitter is coupled to the transmission path, for outputting a transmission signal. The control module is coupled to the attenuation estimation module and the transmitter. When the attenuation value is smaller than a default value, the output power of the transmitter is adjusted to be lower. Thereby, the power consumption of the transceiver device is decreased.

Abstract translation: 提供收发器装置及其省电方法。 收发器装置包括衰减估计模块，发射器和控制模块。 衰减估计模块耦合到用于估计当信号通过传输路径时引起的衰减值的传输路径。 发射机耦合到传输路径，用于输出传输信号。 控制模块耦合到衰减估计模块和发射机。 当衰减值小于默认值时，变送器的输出功率被调整为较低。 从而，收发器装置的功耗降低。

公开(公告)号：US20100026410A1

公开(公告)日：2010-02-04

申请号：US12206916

申请日：2008-09-09

Applicant: Tsu-Chun Liu

Inventor： Tsu-Chun Liu

IPC: H03H7/38 ,  H03H7/40

CPC classification number: H03H7/40

Abstract: A transceiver device and an impedance matching method are provided. In the impedance matching method, a plurality of matching modes is set. Each matching mode includes a default impedance and a corresponding default power. In addition, one of the matching modes is selected for outputting a transmission signal to a load. Besides, a response signal derived from the transmission signal is received. Further, whether the default impedance is matched with an impedance of the load or not is determined according to a parameter of the response signal. Thereby, the echo signal can be restrained from being generated.

Abstract translation: 提供收发器装置和阻抗匹配方法。 在阻抗匹配方法中，设定多个匹配模式。 每个匹配模式包括默认阻抗和相应的默认功率。 此外，选择一种匹配模式用于将传输信号输出到负载。 此外，接收从发送信号导出的响应信号。 此外，根据响应信号的参数确定默认阻抗是否与负载的阻抗匹配。 从而可以抑制回波信号的产生。