公开(公告)号：US20050185593A1

公开(公告)日：2005-08-25

申请号：US11058232

申请日：2005-02-16

申请人： Kuang-Yu Yen ,  Meng-Han Hsieh ,  Hou-Wei Lin ,  Chi-Shun Weng

发明人： Kuang-Yu Yen ,  Meng-Han Hsieh ,  Hou-Wei Lin ,  Chi-Shun Weng

IPC分类号： G06F11/00

CPC分类号： H04L1/244

摘要： The invention provides a method for testing a transmission medium used in a full-duplex communication system comprising an endpoint that comprises a transmitting end (TX) and a receiving end (RX); the method comprises the steps of: first, transmitting a transmitted signal which comprises a test signal sequence with a high auto-correlation characteristic; then, receiving a received signal, and performing a correlation operation on the test signal and the received signal; finally, according to the result of the correlation operation, determining the impedance matching condition of the transmission medium.

摘要翻译： 本发明提供了一种用于测试在全双工通信系统中使用的传输介质的方法，包括：包括发射端（TX）和接收端（RX）的端点; 该方法包括以下步骤：首先发送包含具有高自相关特性的测试信号序列的发送信号; 接收接收到的信号，对测试信号和接收信号进行相关运算; 最后，根据相关运算的结果，确定传输介质的阻抗匹配条件。

公开(公告)号：US07979219B2

公开(公告)日：2011-07-12

申请号：US12488915

申请日：2009-06-22

申请人： Kuang-Yu Yen ,  Meng-Han Hsieh ,  Hou-Wei Lin ,  Chi-Shun Weng

发明人： Kuang-Yu Yen ,  Meng-Han Hsieh ,  Hou-Wei Lin ,  Chi-Shun Weng

IPC分类号： G01R27/00 ,  G01R13/00

CPC分类号： H04L1/244

摘要： The invention provides a method for testing a transmission medium used in a full-duplex communication system comprising an endpoint that comprises a transmitting end (TX) and a receiving end (RX); the method comprises the steps of: first, transmitting a transmitted signal which comprises a test signal sequence with a high auto-correlation characteristic; then, receiving a received signal, and performing a correlation operation on the test signal and the received signal; finally, according to the result of the correlation operation, determining the impedance matching condition of the transmission medium.

摘要翻译： 本发明提供了一种用于测试在全双工通信系统中使用的传输介质的方法，包括：包括发射端（TX）和接收端（RX）的端点; 该方法包括以下步骤：首先发送包含具有高自相关特性的测试信号序列的发送信号; 接收接收到的信号，对测试信号和接收信号进行相关运算; 最后，根据相关运算的结果，确定传输介质的阻抗匹配条件。

公开(公告)号：US20090259422A1

公开(公告)日：2009-10-15

申请号：US12488915

申请日：2009-06-22

申请人： Kuang-Yu Yen ,  Meng-Han Hsieh ,  Hou-Wei Lin ,  Chi-Shun Weng

发明人： Kuang-Yu Yen ,  Meng-Han Hsieh ,  Hou-Wei Lin ,  Chi-Shun Weng

IPC分类号： G01R27/00 ,  G01R13/00 ,  G06F19/00

CPC分类号： H04L1/244

摘要： The invention provides a method for testing a transmission medium used in a full-duplex communication system comprising an endpoint that comprises a transmitting end (TX) and a receiving end (RX); the method comprises the steps of: first, transmitting a transmitted signal which comprises a test signal sequence with a high auto-correlation characteristic; then, receiving a received signal, and performing a correlation operation on the test signal and the received signal; finally, according to the result of the correlation operation, determining the impedance matching condition of the transmission medium.

摘要翻译： 本发明提供了一种用于测试在全双工通信系统中使用的传输介质的方法，包括：包括发射端（TX）和接收端（RX）的端点; 该方法包括以下步骤：首先发送包含具有高自相关特性的测试信号序列的发送信号; 接收接收到的信号，对测试信号和接收信号进行相关运算; 最后，根据相关运算的结果，确定传输介质的阻抗匹配条件。

公开(公告)号：US07561980B2

公开(公告)日：2009-07-14

申请号：US11058232

申请日：2005-02-16

申请人： Kuang-Yu Yen ,  Meng-Han Hsieh ,  Hou-Wei Lin ,  Chi-Shun Weng

发明人： Kuang-Yu Yen ,  Meng-Han Hsieh ,  Hou-Wei Lin ,  Chi-Shun Weng

IPC分类号： G01R31/00

CPC分类号： H04L1/244

摘要： The invention provides a method for testing a transmission medium used in a full-duplex communication system comprising an endpoint that comprises a transmitting end (TX) and a receiving end (RX); the method comprises the steps of: first, transmitting a transmitted signal which comprises a test signal sequence with a high auto-correlation characteristic; then, receiving a received signal, and performing a correlation operation on the test signal and the received signal; finally, according to the result of the correlation operation, determining the impedance matching condition of the transmission medium.

摘要翻译： 本发明提供了一种用于测试在全双工通信系统中使用的传输介质的方法，包括：包括发射端（TX）和接收端（RX）的端点; 该方法包括以下步骤：首先发送包含具有高自相关特性的测试信号序列的发送信号; 接收接收到的信号，对测试信号和接收信号进行相关运算; 最后，根据相关运算的结果，确定传输介质的阻抗匹配条件。

公开(公告)号：US07342982B2

公开(公告)日：2008-03-11

申请号：US10687771

申请日：2003-10-20

申请人： Hou-Wei Lin ,  Shieh-Hsing Kuo ,  Meng-Han Hsieh ,  Kuang-Yu Yen

发明人： Hou-Wei Lin ,  Shieh-Hsing Kuo ,  Meng-Han Hsieh ,  Kuang-Yu Yen

IPC分类号： H04B1/10

CPC分类号： H04L25/03038 ,  H03H21/0012 ,  H04L7/0062 ,  H04L25/03235 ,  H04L2025/03363 ,  H04L2025/03477

摘要： A transceiver of a communication system is disclosed. The transceiver is implemented by a demodulation apparatus including a front-end receiver, a noise canceller, a feedforward equalizer (FFE) and a decoding system. The front-end receiver receives a remote signal and converts it into a first signal with a pre-cursor and a post-cursor in digital form. The noise canceller is coupled to the front-end receiver for subtracting a noise signal from the first signal and thus generates a second signal. The FFE is coupled to the noise canceller for eliminating the pre-cursor in the second signal and thus generates a third signal. The decoding system is coupled to the FFE for decoding the third signal and eliminating the post-cursor in the third signal.

摘要翻译： 公开了一种通信系统的收发器。 收发器由包括前端接收机，噪声消除器，前馈均衡器（FFE）和解码系统的解调装置来实现。 前端接收器接收远程信号，并以数字形式将其转换为具有前置光标和后置光标的第一信号。 噪声消除器耦合到前端接收器，用于从第一信号中减去噪声信号，从而产生第二信号。 FFE耦合到噪声消除器，以消除第二信号中的前置光标，从而产生第三信号。 解码系统耦合到FFE，用于对第三信号进行解码，并消除第三信号中的后置光标。

公开(公告)号：US20070201583A1

公开(公告)日：2007-08-30

申请号：US11681199

申请日：2007-03-02

申请人： Kuang-Yu Yen ,  Meng-Han Hsieh ,  Hou-Wei Lin ,  Shieh-Hsing Kuo

发明人： Kuang-Yu Yen ,  Meng-Han Hsieh ,  Hou-Wei Lin ,  Shieh-Hsing Kuo

IPC分类号： H04L27/06

CPC分类号： H04L25/022 ,  H04L25/0216

摘要： The apparatus for communication channel estimation device of the present invention includes: a frequency response square computing circuit, to generate a first frequency response corresponding to a first frequency and a second frequency response corresponding to a second frequency according to a input signal, and to square the first and the second frequency response; and an estimating circuit, to estimate a channel length according to the squares of the first frequency and the second frequency response. Wherein the input signal is transmitted in a symbol rate and the first frequency and the second frequency are 1/M and 1/N times of the symbol rate respectively, wherein M and N are in the order of 2.

摘要翻译： 本发明的通信信道估计装置包括：频率响应平方计算电路，用于根据输入信号产生对应于第一频率的第一频率响应和对应于第二频率的第二频率响应，以及平方 第一和第二频率响应; 以及估计电路，用于根据第一频率和第二频率响应的平方估计信道长度。 其中输入信号以符号速率发送，第一频率和第二频率分别为符号速率的1 / M和1 / N倍，其中M和N分别为2。

公开(公告)号：US07203256B2

公开(公告)日：2007-04-10

申请号：US10674352

申请日：2003-10-01

申请人： Hou-Wei Lin ,  Kuang-Yu Yen ,  Shieh-Hsing Kuo ,  Meng-Han Hsieh

发明人： Hou-Wei Lin ,  Kuang-Yu Yen ,  Shieh-Hsing Kuo ,  Meng-Han Hsieh

IPC分类号： H04L27/06 ,  H04B1/10

CPC分类号： H04L25/022

摘要： The apparatus for communication channel estimation device of the present invention includes: a frequency response square computing circuit, to generate a first frequency response corresponding to a first frequency and a second frequency response corresponding to a second frequency according to a input signal, and to square the first and the second frequency response; and an estimating circuit, to estimate a channel length according to the squares of the first frequency and the second frequency response. Wherein the input signal is transmitted in a symbol rate and the first frequency and the second frequency are 1/M and 1/N times of the symbol rate respectively, wherein M and N are in the order of 2.

摘要翻译： 本发明的通信信道估计装置包括：频率响应平方计算电路，用于根据输入信号产生对应于第一频率的第一频率响应和对应于第二频率的第二频率响应，以及平方 第一和第二频率响应; 以及估计电路，用于根据第一频率和第二频率响应的平方估计信道长度。 其中输入信号以符号速率发送，第一频率和第二频率分别为符号速率的1 / M和1 / N倍，其中M和N分别为2。

公开(公告)号：US07388909B2

公开(公告)日：2008-06-17

申请号：US10698530

申请日：2003-11-03

申请人： Hou-Wei Lin ,  Shieh-Hsing Kuo ,  Meng-Han Hsieh ,  Kuang-Yu Yen

发明人： Hou-Wei Lin ,  Shieh-Hsing Kuo ,  Meng-Han Hsieh ,  Kuang-Yu Yen

IPC分类号： H04B1/10

CPC分类号： H04L25/03146 ,  H04L7/10 ,  H04L2025/0349 ,  H04L2025/0377

摘要： An initialization method for a network system is disclosed, which uses a channel estimation to predetermine coefficients of an FFE and an FBE. As such, convergence of the FFE, the FBE, a timing recovery, an echo canceller and a NEXT canceller is speeded up. Also, interaction of the cited devices and a divergence caused by the interaction are avoided. Therefore, system performance and stability are increased.

摘要翻译： 公开了一种用于网络系统的初始化方法，其使用信道估计来预先确定FFE和FBE的系数。 因此，FFE，FBE，定时恢复，回波消除器和NEXT消除器的收敛速度加快。 此外，避免了引用的装置的相互作用和由相互作用引起的分歧。 因此，系统性能和稳定性有所提高。

公开(公告)号：US07272177B2

公开(公告)日：2007-09-18

申请号：US10687671

申请日：2003-10-20

申请人： Hou-Wei Lin ,  Shieh-Hsing Kuo ,  Meng-Han Hsieh ,  Kuang-Yu Yen

发明人： Hou-Wei Lin ,  Shieh-Hsing Kuo ,  Meng-Han Hsieh ,  Kuang-Yu Yen

IPC分类号： H03H7/30

CPC分类号： H04L25/03038 ,  H03H21/0012 ,  H04L7/0062 ,  H04L25/03235 ,  H04L2025/03363 ,  H04L2025/03477

摘要： A transceiver of a communication system is disclosed. The transceiver comprises a front-end receiver for receiving a receiving signal and converting to a first signal with a pre-cursor component and a post-cursor component, a noise canceller coupled to the front-end receiver 10 for generating a second signal through eliminating the noise of the first signal, a Feed-Forward Equalizer (FFE) coupled to the noise canceller for generating a third signal through eliminating the pre-cursor component in the second signal according to a transfer function including a plurality of adjustable constants, wherein the adjustable constants includes a main-tap and the value of the main-tap is predetermined, and a decoding system coupled to the FFE for decoding the third signal and eliminating the post-cursor component in the third signal.

摘要翻译： 公开了一种通信系统的收发器。 收发器包括前端接收器，用于接收接收信号并用前置光标分量和后光标分量转换成第一信号;噪声消除器，耦合到前端接收机10，用于通过消除产生第二信号 第一信号的噪声，耦合到噪声消除器的前馈均衡器（FFE），用于通过根据包括多个可调常数的传递函数消除第二信号中的前置分量来产生第三信号，其中， 可调常数包括主抽头，并且主抽头的值是预定的，以及耦合到FFE的解码系统，用于解码第三信号并消除第三信号中的后标光分量。

公开(公告)号：US07548596B2

公开(公告)日：2009-06-16

申请号：US11681199

申请日：2007-03-02

申请人： Kuang-Yu Yen ,  Meng-Han Hsieh ,  Hou-Wei Lin ,  Shieh-Hsing Kuo

发明人： Kuang-Yu Yen ,  Meng-Han Hsieh ,  Hou-Wei Lin ,  Shieh-Hsing Kuo

IPC分类号： H04L27/06 ,  H04B1/10

CPC分类号： H04L25/022 ,  H04L25/0216

摘要： The apparatus for communication channel estimation device of the present invention includes: a frequency response square computing circuit, to generate a first frequency response corresponding to a first frequency and a second frequency response corresponding to a second frequency according to a input signal, and to square the first and the second frequency response; and an estimating circuit, to estimate a channel length according to the squares of the first frequency and the second frequency response. Wherein the input signal is transmitted in a symbol rate and the first frequency and the second frequency are 1/M and 1/N times of the symbol rate respectively, wherein M and N are in the order of 2.

摘要翻译： 本发明的通信信道估计装置包括：频率响应平方计算电路，用于根据输入信号产生对应于第一频率的第一频率响应和对应于第二频率的第二频率响应，以及平方 第一和第二频率响应; 以及估计电路，用于根据第一频率和第二频率响应的平方估计信道长度。 其中输入信号以符号速率发送，第一频率和第二频率分别为符号速率的1 / M和1 / N倍，其中M和N分别为2。