公开(公告)号：US08238451B2

公开(公告)日：2012-08-07

申请号：US12388757

申请日：2009-02-19

Applicant: Tsu-Chun Liu ,  Liang-Ping Lin

Inventor： Tsu-Chun Liu ,  Liang-Ping Lin

IPC: H04B3/00

CPC classification number: H04L25/028

Abstract: A network transmitting apparatus and a power saving method thereof are provided. The network transmitting apparatus includes a chip, a transformer, and a power regulating unit. The chip includes a detecting and controlling unit, an analog circuit, and a digital circuit. The detecting and controlling unit receives a received signal and detects the received signal and a state of the chip to generate a first control signal. The transformer has a first side coupled to the chip and a second side. The power regulating unit coupled to the detecting and controlling unit and a center tap of the first side of the transformer is used for receiving a voltage, generating a first regulated voltage according to the first control signal, and connecting the first regulated voltage to the center tap of the first side of the transformer, the analog circuit, and the digital circuit.

Abstract translation: 提供一种网络发送装置及其省电方法。 网络发送装置包括芯片，变压器和功率调节单元。 该芯片包括检测和控制单元，模拟电路和数字电路。 检测和控制单元接收接收信号并检测接收到的信号和芯片的状态以产生第一控制信号。 变压器具有耦合到芯片的第一侧和第二侧。 耦合到检测和控制单元的功率调节单元和变压器的第一侧的中心抽头用于接收电压，根据第一控制信号产生第一调节电压，并将第一调节电压连接到中心 抽头变压器的第一面，模拟电路和数字电路。

公开(公告)号：US08054100B1

公开(公告)日：2011-11-08

申请号：US12958410

申请日：2010-12-02

Applicant: Ting-Ko Liao ,  Tsu-Chun Liu

Inventor： Ting-Ko Liao ,  Tsu-Chun Liu

IPC: H03K17/16

CPC classification number: H04L25/0278 ,  H04L25/0266 ,  H04L25/0272 ,  H04L25/028

Abstract: A line transceiver apparatus for multiple transmission standards including a operational amplifier (OP-AMP), a transformer unit, a first variable resistor unit to a sixth variable resistor unit, and a variable resistor control unit is provided. The first resistor and the second resistor are coupled between transmission nodes of the line transceiver apparatus and input nodes of the OP-AMP, and the load nodes of the transformer unit are receiving nodes of the line transceiver apparatus. The variable resistor control unit adjusts the impedances of the first variable resistor unit to the sixth variable resistor unit according to a transmission standard selection signal so as to enable the line transceiver apparatus to support multiple transmission standards.

Abstract translation: 提供了包括运算放大器（OP-AMP），变压器单元，到第六可变电阻器单元的第一可变电阻器单元和可变电阻器控制单元的用于多传输标准的线路收发器设备。 第一电阻器和第二电阻器耦合在线路收发器设备的传输节点和OP-AMP的输入节点之间，并且变压器单元的负载节点正在接收线路收发器设备的节点。 可变电阻器控制单元根据传输标准选择信号调整第一可变电阻器单元与第六可变电阻器单元的阻抗，使得线路收发器设备能够支持多个传输标准。

公开(公告)号：US20100118984A1

公开(公告)日：2010-05-13

申请号：US12388757

申请日：2009-02-19

Applicant: Tsu-Chun Liu ,  Liang-Ping Lin

Inventor： Tsu-Chun Liu ,  Liang-Ping Lin

IPC: H04B3/00

CPC classification number: H04L25/028

Abstract: A network transmitting apparatus and a power saving method thereof are provided. The network transmitting apparatus includes a chip, a transformer, and a power regulating unit. The chip includes a detecting and controlling unit, an analog circuit, and a digital circuit. The detecting and controlling unit receives a received signal and detects the received signal and a state of the chip to generate a first control signal. The transformer has a first side coupled to the chip and a second side. The power regulating unit coupled to the detecting and controlling unit and a center tap of the first side of the transformer is used for receiving a voltage, generating a first regulated voltage according to the first control signal, and connecting the first regulated voltage to the center tap of the first side of the transformer, the analog circuit, and the digital circuit.

Abstract translation: 提供一种网络发送装置及其省电方法。 网络发送装置包括芯片，变压器和功率调节单元。 该芯片包括检测和控制单元，模拟电路和数字电路。 检测和控制单元接收接收信号并检测接收到的信号和芯片的状态以产生第一控制信号。 变压器具有耦合到芯片的第一侧和第二侧。 耦合到检测和控制单元的功率调节单元和变压器的第一侧的中心抽头用于接收电压，根据第一控制信号产生第一调节电压，并将第一调节电压连接到中心 抽头变压器的第一面，模拟电路和数字电路。

公开(公告)号：US20100048137A1

公开(公告)日：2010-02-25

申请号：US12259796

申请日：2008-10-28

Applicant: Tsu-Chun Liu

Inventor： Tsu-Chun Liu

IPC: H04B1/00

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：US20100027407A1

公开(公告)日：2010-02-04

申请号：US12243194

申请日：2008-10-01

Applicant: Tsu-Chun Liu

Inventor： Tsu-Chun Liu

IPC: H04J3/10

CPC classification number: H04B3/232

Abstract: A transceiver and an echo cancellation method are disclosed. The echo cancellation method includes producing an echo cancellation signal according to a transmission signal; adjusting the amplitude, the delay time or a combination of the amplitude and the delay time of the echo cancellation signal according to an adjusting parameter; receiving an echo signal derived from the transmission signal and performing a subtraction operation on the echo signal by using the echo cancellation signal so as to obtain an echo residual; and producing the adjusting parameter according to the echo residual. The provided method can effectively reduce the interference caused by the echo signal.

Abstract translation: 公开了一种收发机和回波消除方法。 回波消除方法包括根据发送信号产生回波消除信号; 根据调整参数调整振幅，延迟时间或回波消除信号的幅度和延迟时间的组合; 接收从发送信号导出的回波信号，并通过使用回波消除信号对回波信号进行减法运算，以获得回波残差; 并根据回波残差产生调整参数。 所提供的方法可以有效地减少由回波信号引起的干扰。

公开(公告)号：US20060093068A1

公开(公告)日：2006-05-04

申请号：US10906500

申请日：2005-02-23

Applicant: Tsu-Chun Liu ,  Ming-Lu Wu

Inventor： Tsu-Chun Liu ,  Ming-Lu Wu

IPC: H04L25/06 ,  H04B1/10

CPC classification number: H04L25/0296

Abstract: A DC wander canceling device is provided for canceling DC wander. The DC wander canceling device comprises an analog front end, an equalizer, a slicer, and a digital/analog DC wander canceller. The digital/analog DC wander canceller is coupled to the slicer and the analog front end for receiving a sliced signal. According to the difference of the received sliced signal and the input signal of the slicer, the digital/analog DC wander canceller compensates the equalized signal to cancel a digital DC wander, and also cancel an analog DC wander at the input of the analog front end, to enhance the accuracy of signal demodulation.

Abstract translation: 提供DC漂移消除装置，用于消除DC漂移。 DC漂移消除装置包括模拟前端，均衡器，限幅器和数字/模拟DC漫游消除器。 数字/模拟直流漂移消除器耦合到限幅器和模拟前端，用于接收分片信号。 根据接收到的切片信号与切片器的输入信号的不同，数字/模拟直流漂移消除器补偿均衡信号以消除数字直流漂移，并且还消除模拟前端输入端的模拟直流漂移 ，提高信号解调的准确性。

公开(公告)号：US08219156B2

公开(公告)日：2012-07-10

申请号：US12247423

申请日：2008-10-08

Applicant: Tsu-Chun Liu

Inventor： Tsu-Chun Liu

IPC: H04W4/00

CPC classification number: H04W52/0241 ,  H04B17/336 ,  H04W52/48 ,  Y02D70/00

Abstract: A transceiver device and a power saving method thereof are provided. The transceiver device includes a transmitter, a receiver, and a control module. The control module is coupled to the transmitter and the receiver. After the control module lowers the output power of either the transmitter, the receiver, or both of them, the control module checks a signal transmission between the transceiver device and a far-end device is normal or not. When the signal transmission between the transceiver device and the far-end device is abnormal, the control module readjusts the output power of the transmitter, the receiver, or both of them. 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。 收发器装置包括发射器，接收器和控制模块。 控制模块耦合到发射机和接收机。 在控制模块降低发射机，接收机或两者的输出功率之后，控制模块检查收发器设备和远端设备之间的信号传输是否正常。 当收发器设备和远端设备之间的信号传输异常时，控制模块重新调整发射机，接收机或两者的输出功率。 从而，收发器装置的功耗降低。

公开(公告)号：US20100029346A1

公开(公告)日：2010-02-04

申请号：US12247423

申请日：2008-10-08

Applicant: Tsu-Chun Liu

Inventor： Tsu-Chun Liu

IPC: H04B1/38

CPC classification number: H04W52/0241 ,  H04B17/336 ,  H04W52/48 ,  Y02D70/00

Abstract: A transceiver device and a power saving method thereof are provided. The transceiver device includes a transmitter, a receiver, and a control module. The control module is coupled to the transmitter and the receiver. After the control module lowers the output power of either the transmitter, the receiver, or both of them, the control module checks a signal transmission between the transceiver device and a far-end device is normal or not. When the signal transmission between the transceiver device and the far-end device is abnormal, the control module readjusts the output power of the transmitter, the receiver, or both of them. 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。 收发器装置包括发射器，接收器和控制模块。 控制模块耦合到发射机和接收机。 在控制模块降低发射机，接收机或两者的输出功率之后，控制模块检查收发器设备和远端设备之间的信号传输是否正常。 当收发器设备和远端设备之间的信号传输异常时，控制模块重新调整发射机，接收机或两者的输出功率。 从而，收发器装置的功耗降低。

公开(公告)号：US20060088131A1

公开(公告)日：2006-04-27

申请号：US10906580

申请日：2005-02-25

Applicant: Tsu-Chun Liu ,  Ming-Lu Wu

Inventor： Tsu-Chun Liu ,  Ming-Lu Wu

IPC: H04L27/06

CPC classification number: H04L25/4917 ,  H04L25/062

Abstract: A method and an apparatus for reducing the area and shortening the critical path of Viterbi circuits in Gigabit Ethernet systems. The present invention replaces the complex four-dimensional Euclidean distance with a simple sum of distances in each dimension as the distance criterion when a slicer is selecting the closest PAM-5 constellation point according to output voltages from an equalizer, thereby simplifying the design of Viterbi circuits.

Abstract translation: 一种减少千兆以太网系统维特比电路面积和缩短关键路径的方法和装置。 本发明在限幅器根据来自均衡器的输出电压选择最接近的PAM-5星座点时，以每个维度中的简单的距离和距离作为距离标准来代替复四维欧几里德距离，从而简化了维特比 电路。

公开(公告)号：US20060088088A1

公开(公告)日：2006-04-27

申请号：US10906537

申请日：2005-02-24

Applicant: Tsu-Chun Liu ,  Ming-Lu Wu

Inventor： Tsu-Chun Liu ,  Ming-Lu Wu

IPC: H03H7/30

CPC classification number: H04L25/03006

Abstract: A look-ahead equalizer is provided. The equalizer has an equalizer without a first tap, a look-ahead unit, and a slicer unit. The equalizer without a first tap outputs a pre-filter output and a state reference signal. The look-ahead unit is coupled to the output of the equalizer without a first tap for generating a first, a second, and a third equalizer look-ahead values according to the state reference signal. The slicer unit is coupled to the look-ahead unit. The slicer unit comprises plural state slicer units. Each state slicer unit receives the first, the second, and the third equalizer look-ahead values, and then selects one of them according to a comparison result of the state slicer unit and the state reference signal.

Abstract translation: 提供了超前均衡器。 均衡器具有均衡器，而没有第一抽头，预先单元和切片器单元。 没有第一抽头的均衡器输出预滤波器输出和状态参考信号。 先行单元耦合到均衡器的输出，而没有第一抽头，用于根据状态参考信号产生第一，第二和第三均衡器预读值。 切片机单元耦合到前视单元。 切片机单元包括多个状态切片器单元。 每个状态限幅器单元接收第一，第二和第三均衡器预先值，然后根据状态限幅器单元和状态参考信号的比较结果来选择它们之一。