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1.发明授权System and method for adapting an analog echo canceller in a transceiver front end 有权在收发器前端适配模拟回波消除器的系统和方法公开(公告)号：US06980644B1
公开(公告)日：2005-12-27
申请号：US09570078
申请日：2000-05-12
CPC分类号： H04M9/082
摘要： There is disclosed an echo canceller circuit for use in a full duplex transceiver of the type comprising a line driver capable of sending analog transmit signals through a cable and comprising a line receiver capable of receiving analog receive signals from the cable. An echo canceller impedance model circuit is coupled to an output of the line driver and is coupled to an input of the line receiver. The echo canceller impedance model circuit generates an echo canceller current that is equal in magnitude and opposite in phase to a current that represents signal echoes that are present in the analog receive signals. The echo canceller impedance model circuit has a variable impedance for generating the echo canceller current. The variable impedance has at least one variable resistor and at least one variable capacitor. The values of resistance and capacitance in the echo canceller impedance model circuit are varied in response to control signals from a echo canceller control circuit to compensate for and cancel signal echoes.
摘要翻译： 公开了一种用于全双工收发器的回波消除器电路，其包括能够通过电缆发送模拟发射信号的线路驱动器并且包括能够从电缆接收模拟接收信号的线路接收器的线路接收机。 回波消除器阻抗模型电路耦合到线路驱动器的输出端并耦合到线路接收机的输入。 回波消除器阻抗模型电路产生质量相等并且与表示模拟接收信号中存在的信号回波的电流相位相反的回波消除器电流。 回波消除器阻抗模型电路具有用于产生回波消除器电流的可变阻抗。 可变阻抗具有至少一个可变电阻器和至少一个可变电容器。 回波消除器阻抗模型电路中的电阻和电容值响应于来自回波消除器控制电路的控制信号而变化，以补偿和消除信号回波。
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2.发明授权System and method for adapting an analog echo canceller in a transceiver front end 有权在收发器前端适配模拟回波消除器的系统和方法公开(公告)号：US07333603B1
公开(公告)日：2008-02-19
申请号：US11320520
申请日：2005-12-27
CPC分类号： H04M9/082
摘要： There is disclosed an echo canceller circuit for use in a full duplex transceiver of the type comprising a line driver capable of sending analog transmit signals through a cable and comprising a line receiver capable of receiving analog receive signals from the cable. An echo canceller impedance model circuit is coupled to an output of the line driver and is coupled to an input of the line receiver. The echo canceller impedance model circuit generates an echo canceller current that is equal in magnitude and opposite in phase to a current that represents signal echoes that are present in the analog receive signals. The echo canceller impedance model circuit has a variable impedance for generating the echo canceller current. The variable impedance has at least one variable resistor and at least one variable capacitor. The values of resistance and capacitance in the echo canceller impedance model circuit are varied in response to control signals from a echo canceller control circuit to compensate for and cancel signal echoes.
摘要翻译： 公开了一种用于全双工收发器的回波消除器电路，其包括能够通过电缆发送模拟发射信号的线路驱动器并且包括能够从电缆接收模拟接收信号的线路接收器的线路接收机。 回波消除器阻抗模型电路耦合到线路驱动器的输出端并耦合到线路接收机的输入。 回波消除器阻抗模型电路产生质量相等并且与表示模拟接收信号中存在的信号回波的电流相位相反的回波消除器电流。 回波消除器阻抗模型电路具有用于产生回波消除器电流的可变阻抗。 可变阻抗具有至少一个可变电阻器和至少一个可变电容器。 回波消除器阻抗模型电路中的电阻和电容值响应于来自回波消除器控制电路的控制信号而变化，以补偿和消除信号回波。
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公开(公告)号：US08787430B2
公开(公告)日：2014-07-22
申请号：US12558781
申请日：2009-09-14
CPC分类号： H04L27/2601
摘要： A communication system is disclosed that allows high data-rate transmission of data between components. N-bit parallel data is transmitted in K-frequency separated channels on the transmission medium so as to fully take advantage of the overall bandwidth of the transmission medium. As a result, a very high data-rate transmission can be accomplished with low data-bit transmission on individual channels. A transmitter system and a receiver system are described for the communication system.
摘要翻译： 公开了允许组件之间数据高数据速率传输的通信系统。 在传输介质上以K个频率分离的信道发送N位并行数据，以充分利用传输介质的总带宽。 因此，可以在单个通道上进行低数据位传输来实现非常高的数据速率传输。 为通信系统描述了发射机系统和接收机系统。
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公开(公告)号：US07590168B2
公开(公告)日：2009-09-15
申请号：US09965242
申请日：2001-09-26
CPC分类号： H04L27/2601
摘要： A communication system is disclosed that allows high data-rate transmission of data between components. N-bit parallel data is transmitted in K-frequency separated channels on the transmission medium so as to fully take advantage of the overall bandwidth of the transmission medium. As a result, a very high data-rate transmission can be accomplished with low data-bit transmission on individual channels. A transmitter system and a receiver system are described for the communication system.
摘要翻译： 公开了允许组件之间数据高数据速率传输的通信系统。 在传输介质上以K个频率分离的信道发送N位并行数据，以充分利用传输介质的总带宽。 因此，可以在单个通道上进行低数据位传输来实现非常高的数据速率传输。 为通信系统描述了发射机系统和接收机系统。
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5.发明授权Near-end, far-end and echo cancellers in a multi-channel transceiver system 失效多通道收发器系统中的近端，远端和回声消除器公开(公告)号：US07613234B2
公开(公告)日：2009-11-03
申请号：US12080815
申请日：2008-04-04
摘要： A transceiver according to the present invention receives data from a plurality of frequency separated transmission channels from a complementary transmitter and includes an interference filter for correcting for interference from transmitters other than the complementary transmitter. The interference filter, for example, can correct for near-end cross-talk and echo interference filtering and/or far-end crosstalk interference filtering is presented. A transceiver can include a transmitter portion and a receiver portion with one or more receivers coupled to receives signals in the plurality of frequency separated transmission channels. A baseband transmitter can be combined with one or more transmitters that transmit data into one of the frequency separated transmission bands. Any combination of modulation systems can be utilized (e.g. PAM for the baseband and QAM for the frequency separated bands). In some embodiments, one baseband PAM transmitter is combined with one or more frequency separated QAM transmitters.
摘要翻译： 根据本发明的收发器从互补发射机接收来自多个频率分离的传输信道的数据，并且包括用于校正来自除了互补发射机之外的发射机的干扰的干扰滤波器。 例如，干扰滤波器可以校正近端串扰和回波干扰滤波和/或远端串扰干扰滤波。 收发机可以包括发射机部分和接收机部分，其中一个或多个接收机被耦合以接收多个频率分离的传输信道中的信号。 基带发射机可以与将数据发射到频率分离的传输频带之一的一个或多个发射机组合。 可以利用调制系统的任何组合（例如用于基带的PAM和频率分离频带的QAM）。 在一些实施例中，一个基带PAM发射机与一个或多个频率分离的QAM发射机组合。
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6.发明申请Near-end, far-end and echo cancellers in a multi-channel transceiver system 失效多通道收发器系统中的近端，远端和回声消除器公开(公告)号：US20080285634A1
公开(公告)日：2008-11-20
申请号：US12080815
申请日：2008-04-04
IPC分类号： H04B1/38
摘要： A transceiver according to the present invention receives data from a plurality of frequency separated transmission channels from a complementary transmitter and includes an interference filter for correcting for interference from transmitters other than the complementary transmitter. The interference filter, for example, can correct for near-end cross-talk and echo interference filtering and/or far-end crosstalk interference filtering is presented. A transceiver can include a transmitter portion and a receiver portion with one or more receivers coupled to receives signals in the plurality of frequency separated transmission channels. A baseband transmitter can be combined with one or more transmitters that transmit data into one of the frequency separated transmission bands. Any combination of modulation systems can be utilized (e.g. PAM for the baseband and QAM for the frequency separated bands). In some embodiments, one baseband PAM transmitter is combined with one or more frequency separated QAM transmitters.
摘要翻译： 根据本发明的收发器从互补发射机接收来自多个频率分离的传输信道的数据，并且包括用于校正来自除了互补发射机之外的发射机的干扰的干扰滤波器。 例如，干扰滤波器可以校正近端串扰和回波干扰滤波和/或远端串扰干扰滤波。 收发机可以包括发射机部分和接收机部分，其中一个或多个接收机被耦合以接收多个频率分离的传输信道中的信号。 基带发射机可以与将数据发射到频率分离的传输频带之一的一个或多个发射机组合。 可以利用调制系统的任何组合（例如用于基带的PAM和用于频率分离频带的QAM）。 在一些实施例中，一个基带PAM发射机与一个或多个频率分离的QAM发射机组合。
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公开(公告)号：US07403752B2
公开(公告)日：2008-07-22
申请号：US10310255
申请日：2002-12-04
IPC分类号： H04B17/02
CPC分类号： H04L27/2601
摘要： A transceiver system according to the present invention transmits data utilizing the baseband and one or more frequency separated transmission bands. A baseband transmitter is combined with one or more transmitters that transmit data into one of the frequency separated transmission bands. A baseband receiver is combined with one or more receivers that receive data from the frequency separated transmission bands. Any combination of modulation systems can be utilized (e.g. PAM for the baseband and QAM for the frequency separated bands). A transceiver circuit or chip according to the present invention includes a transmitter and a receiver and communicates with a corresponding transceiver chip. In some embodiments, one baseband PAM transmitter is combined with one frequency separated QAM transmitter.
摘要翻译： 根据本发明的收发机系统使用基带和一个或多个频率分离的发送频带来发送数据。 基带发射机与将数据发射到频率分离的传输频带之一的一个或多个发射机组合。 基带接收机与从频率分离的传输频带接收数据的一个或多个接收机组合。 可以利用调制系统的任何组合（例如用于基带的PAM和用于频率分离频带的QAM）。 根据本发明的收发器电路或芯片包括发射机和接收机，并与对应的收发机芯片进行通信。 在一些实施例中，一个基带PAM发射机与一个频率分离的QAM发射机组合。
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8.发明授权High-speed multi-channel communications transceiver with inter-channel interference filter 有权具有通道间干扰滤波器的高速多通道通讯收发器公开(公告)号：US07236757B2
公开(公告)日：2007-06-26
申请号：US10071771
申请日：2002-02-06
CPC分类号： H04L27/2601
摘要： A communication system is disclosed that allows high data-rate transmission of data between components. N-bit parallel data is transmitted in K-frequency separated channels on the transmission medium so as to fully take advantage of the overall bandwidth of the transmission medium. Additionally, a cross-channel interference filter in a receiver section corrects for cross-channel interference in the communication system. As a result, a very high data-rate transmission can be accomplished with low data-bit transmission on individual channels. A transmitter system and a receiver system are described for the communication system.
摘要翻译： 公开了允许组件之间数据高数据速率传输的通信系统。 在传输介质上以K个频率分离的信道发送N位并行数据，以充分利用传输介质的总带宽。 此外，接收机部分中的交叉信道干扰滤波器校正通信系统中的跨信道干扰。 因此，可以在单个通道上进行低数据位传输来实现非常高的数据速率传输。 为通信系统描述了发射机系统和接收机系统。
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公开(公告)号：US07388904B2
公开(公告)日：2008-06-17
申请号：US10454382
申请日：2003-06-03
IPC分类号： H04B1/38
摘要： A transceiver according to the present invention receives data from a plurality of frequency separated transmission channels from a complementary transmitter and includes an interference filter for correcting for interference from transmitters other than the complementary transmitter. The interference filter, for example, can correct for near-end cross-talk and echo interference filtering and/or far-end crosstalk interference filtering is presented. A transceiver can include a transmitter portion and a receiver portion with one or more receivers coupled to receives signals in the plurality of frequency separated transmission channels. A baseband transmitter can be combined with one or more transmitters that transmit data into one of the frequency separated transmission bands. Any combination of modulation systems can be utilized (e.g. PAM for the baseband and QAM for the frequency separated bands). In some embodiments, one baseband PAM transmitter is combined with one or more frequency separated QAM transmitters.
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公开(公告)号：US06975674B1
公开(公告)日：2005-12-13
申请号：US09570331
申请日：2000-05-12
CPC分类号： H04L25/03019
摘要： There is disclosed a mixed mode equalization system for use in a transceiver capable of operating in a high frequency Ethernet local area network (LAN). The mixed mode equalization system comprises: 1) an adaptive analog equalization filter for amplifying a first high frequency component of an incoming analog signal by a first adjustable gain factor to produce an analog filtered incoming signal; 2) an analog-to-digital converter (ADC) for converting the analog filter incoming signal to a first incoming digital signal; 3) a digital finite impulse response (FIR) filter for amplifying a second high frequency component of the first incoming digital signal factor to produce a digital filtered incoming signal; 4) a digital FIR controller for modifying at least one digital filter coefficient of the digital FIR filter according to a signal error associated with a digital output of the digital FIR filter; and 5) an analog equalization controller for modifying the first adjustable gain factor associated with the adaptive analog equalization filter according to a value of the at least one digital filter coefficient.
摘要翻译： 公开了一种在能够在高频以太网局域网（LAN）中操作的收发器中使用的混合模式均衡系统。 混合模式均衡系统包括：1）自适应模拟均衡滤波器，用于通过第一可调增益因子放大输入模拟信号的第一高频分量，以产生模拟滤波输入信号; 2）用于将模拟滤波器输入信号转换为第一输入数字信号的模数转换器（ADC）; 3）数字有限脉冲响应（FIR）滤波器，用于放大第一输入数字信号因子的第二高频分量以产生数字滤波输入信号; 4）数字FIR控制器，用于根据与数字FIR滤波器的数字输出相关联的信号误差来修改数字FIR滤波器的至少一个数字滤波器系数; 以及5）模拟均衡控制器，用于根据所述至少一个数字滤波器系数的值修改与所述自适应模拟均衡滤波器相关联的第一可调增益因子。
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