公开(公告)号：US20170155424A1

公开(公告)日：2017-06-01

申请号：US15018511

申请日：2016-02-08

Applicant: Broadcom Corporation

Inventor： German Stefan Otto Feyh ,  Kishore Kota

IPC: H04B3/04 ,  H04L25/03

CPC classification number: H04B3/04 ,  H04L25/03

Abstract: A system may concurrently transport datastreams over the common, differential and phantom modes of pair conductor media. The system may implement the phantom mode transport using the differential of multiple common modes. In multiple conductor pair implementations, multiple phantom modes may share a single return signal route. In some implementations, usage of common modes and phantom modes may be paired with schemes to increase signal robustness.

公开(公告)号：US20140079101A1

公开(公告)日：2014-03-20

申请号：US14087223

申请日：2013-11-22

Applicant: Broadcom Corporation

Inventor： Kuoruey (Ray) Han ,  Peiqing Wang ,  Linghsiao Wang ,  Kishore Kota ,  Arash Farhoodfar

IPC: H04B1/12

CPC classification number: H04B1/123 ,  H03H21/0027

Abstract: Aspects of a method and system for unconstrained frequency domain adaptive filtering include one or more circuits that are operable to select one or more time domain coefficients in a current filter partition. A value may be computed for each of the selected one or more time domain coefficients based on a corresponding plurality of frequency domain coefficients. The corresponding plurality of frequency domain coefficients may be adjusted based on the computed values. A subsequent plurality of frequency domain coefficients in a subsequent filter partition may be adjusted based on the computed values. Input signals may be processed in the current filter partition based on the adjusted corresponding plurality of frequency domain coefficients. A time-adjusted version of the input signals may be processed in a subsequent filter partition based on the adjusted subsequent plurality of frequency domain coefficients.

Abstract translation: 用于无约束频域自适应滤波的方法和系统的方面包括可操作以选择当前滤波器分区中的一个或多个时域系数的一个或多个电路。 可以基于对应的多个频域系数来计算所选择的一个或多个时域系数中的每一个的值。 可以基于所计算的值来调整相应的多个频域系数。 可以基于所计算的值来调整后续滤波器分区中的后续多个频域系数。 可以基于经调整的相应多个频域系数在当前滤波器分区中处理输入信号。 输入信号的时间调整版本可以在随后的滤波器分区中基于经调整的后续多个频域系数来处理。

公开(公告)号：US09094076B2

公开(公告)日：2015-07-28

申请号：US13956541

申请日：2013-08-01

Applicant: Broadcom Corporation

Inventor： Mehdi Tavassoli Kilani ,  Scott Powell ,  Kadir Dinc ,  Kishore Kota ,  John Creigh ,  Hooman Parizi

IPC: H04L1/00 ,  H04B1/10 ,  H04L25/08 ,  H04L25/02

CPC classification number: H04B1/10 ,  H04L25/0274 ,  H04L25/0292 ,  H04L25/085

Abstract: Aspects of a method and system for interference cancellation substantially as shown in and/or described in connection with at least one of the figures, as set forth more completely in the claims. In this regard, a receiver may be operable to receive a differential signal via a differential channel, and to sense a common mode signal on the differential channel. A frequency range in which interference is present in the common mode signal may be determined. The differential signal and the common mode signal may be filtered to attenuate frequencies outside the determined frequency range. A phase and/or amplitude of the filtered common mode signal may be adjusted based on the filtered differential signal and the adjusted and filtered common mode signal may be subtracted from the received differential signal. The common mode signal may be sensed via a pair of resistors coupled to the differential channel.

Abstract translation: 如在权利要求中更全面地阐述的，基本上如附图中至少一个所示和/或描述的用于干扰消除的方法和系统的方面。 在这方面，接收机可以用于经由差分信道接收差分信号，并且用于感测差分信道上的共模信号。 可以确定在共模信号中存在干扰的频率范围。 差分信号和共模信号可以被滤波以衰减在所确定的频率范围之外的频率。 滤波后的共模信号的相位和/或幅度可以基于经滤波的差分信号进行调整，并且可以从所接收的差分信号中减去经调整和滤波的共模信号。 可以经由耦合到差分沟道的一对电阻来感测共模信号。

公开(公告)号：US20130142206A1

公开(公告)日：2013-06-06

申请号：US13706584

申请日：2012-12-06

Applicant: Broadcom Corporation

Inventor： Kishore Kota ,  Ramesh Saripalli

IPC: H04L29/06

CPC classification number: H04L69/14 ,  H03M13/09 ,  H03M13/116 ,  H03M13/1515 ,  H03M13/251 ,  H03M13/255 ,  H03M13/271 ,  H03M13/356 ,  H04L1/0041 ,  H04L1/0058 ,  H04L1/0071 ,  H04L27/0008 ,  H04L27/3416

Abstract: Systems and methods of processing Ethernet physical layer frames are disclosed. One such system includes processing circuitry operable to map a plurality of bits in an Ethernet media access control (MAC) frame into a plurality of symbols selected from a first multi-dimensional constellation. The first multi-dimensional constellation has a dimension higher than that of a second multi-dimensional constellation defined by IEEE 803.2an. The symbols in the first multi-dimensional constellation have a minimum separation not less than that of the second multi-dimensional constellation. The system also includes second processing circuitry operable to provide noise protection for a plurality of additional bits produced by the mapper as a result of the dimension of the first multi-dimensional constellation being higher than that of the second multi-dimensional constellation.

Abstract translation: 公开了处理以太网物理层帧的系统和方法。 一个这样的系统包括可操作以将以太网媒体访问控制（MAC）帧中的多个比特映射到从第一多维星座中选择的多个符号的处理电路。 第一个多维星座的尺寸高于由IEEE 803.2an定义的第二个多维星座的尺寸。 第一多维星座中的符号具有不小于第二多维星座的符号的最小间隔。 该系统还包括第二处理电路，其可操作以由于第一多维星座的尺寸高于第二多维星座的尺寸而为由该映射器产生的多个附加位提供噪声保护。

公开(公告)号：US20150350096A1

公开(公告)日：2015-12-03

申请号：US14492860

申请日：2014-09-22

Applicant: BROADCOM CORPORATION

Inventor： Kadir Dinc ,  Kishore Kota ,  Alan Youssef Kwentus ,  German Stefan Otto Feyh

IPC: H04L12/825 ,  H04L1/00 ,  H04L5/14

CPC classification number: H04L47/25 ,  H04L1/0002 ,  H04L1/0041 ,  H04L1/0045 ,  H04L5/1423

Abstract: Transceiver architecture includes circuitry and a method to transmit and receive high speed WAP data over lower speed cabling such as Cat5e. The method begins by measuring quality of a wired bi-directional communications channel. The method continues by selecting a maximum possible data transmission rate over the wired bi-directional communications channel for the measured quality level and when the maximum possible data transmission rate is a reduced data transmission rate less than a maximum data transmission rate of the transceivers, proportionally adjusting clock rates of circuit elements of the first and second transceiver to transfer the data at the reduced data transmission rate. The method includes dividing data frames of the data to be transmitted N times, where N=number of layers of at least a portion of identical transceiver processing circuitry which is connected to twisted wiring pairs of the wired bi-directional communications channel.

Abstract translation: 收发器架构包括电路和通过诸如Cat5e之类的低速布线发送和接收高速WAP数据的方法。 该方法开始于测量有线双向通信信道的质量。 该方法通过针对测量的质量水平选择有线双向通信信道上的最大可能数据传输速率，并且当最大可能数据传输速率是小于收发器的最大数据传输速率的数据传输速率降低时，按比例 调整第一和第二收发器的电路元件的时钟速率以以降低的数据传输速率传送数据。 该方法包括划分要发送的数据的数据帧N次，其中N =连接到有线双向通信信道的双绞线对的相同收发器处理电路的至少一部分的层数。

公开(公告)号：US08984038B2

公开(公告)日：2015-03-17

申请号：US14087223

申请日：2013-11-22

Applicant: Broadcom Corporation

Inventor： Kuoruey (Ray) Han ,  Peiqing Wang ,  Linghsiao Wang ,  Kishore Kota ,  Arash Farhoodfar

IPC: G06F17/10 ,  G06F17/14 ,  H04B3/46 ,  H03H7/30 ,  H04B1/12 ,  H03H21/00

CPC classification number: H04B1/123 ,  H03H21/0027

Abstract: Aspects of a method and system for unconstrained frequency domain adaptive filtering include one or more circuits that are operable to select one or more time domain coefficients in a current filter partition. A value may be computed for each of the selected one or more time domain coefficients based on a corresponding plurality of frequency domain coefficients. The corresponding plurality of frequency domain coefficients may be adjusted based on the computed values. A subsequent plurality of frequency domain coefficients in a subsequent filter partition may be adjusted based on the computed values. Input signals may be processed in the current filter partition based on the adjusted corresponding plurality of frequency domain coefficients. A time-adjusted version of the input signals may be processed in a subsequent filter partition based on the adjusted subsequent plurality of frequency domain coefficients.

Abstract translation: 用于无约束频域自适应滤波的方法和系统的方面包括可操作以选择当前滤波器分区中的一个或多个时域系数的一个或多个电路。 可以基于对应的多个频域系数来计算所选择的一个或多个时域系数中的每一个的值。 可以基于所计算的值来调整相应的多个频域系数。 可以基于所计算的值来调整后续滤波器分区中的后续多个频域系数。 可以基于经调整的相应多个频域系数在当前滤波器分区中处理输入信号。 输入信号的时间调整版本可以在随后的滤波器分区中基于经调整的后续多个频域系数来处理。

公开(公告)号：US20130315357A1

公开(公告)日：2013-11-28

申请号：US13956541

申请日：2013-08-01

Applicant: Broadcom Corporation

Inventor： Mehdi Tavassoli Kilani ,  Scott Powell ,  Kadir Dinc ,  Kishore Kota ,  John Creigh ,  Hooman Parizi

IPC: H04B1/10

CPC classification number: H04B1/10 ,  H04L25/0274 ,  H04L25/0292 ,  H04L25/085

Abstract: Aspects of a method and system for interference cancellation substantially as shown in and/or described in connection with at least one of the figures, as set forth more completely in the claims. In this regard, a receiver may be operable to receive a differential signal via a differential channel, and to sense a common mode signal on the differential channel. A frequency range in which interference is present in the common mode signal may be determined. The differential signal and the common mode signal may be filtered to attenuate frequencies outside the determined frequency range. A phase and/or amplitude of the filtered common mode signal may be adjusted based on the filtered differential signal and the adjusted and filtered common mode signal may be subtracted from the received differential signal. The common mode signal may be sensed via a pair of resistors coupled to the differential channel.

Abstract translation: 如在权利要求中更全面地阐述的，基本上如附图中至少一个所示和/或描述的用于干扰消除的方法和系统的方面。 在这方面，接收机可以用于经由差分信道接收差分信号，并且用于感测差分信道上的共模信号。 可以确定在共模信号中存在干扰的频率范围。 差分信号和共模信号可以被滤波以衰减在所确定的频率范围之外的频率。 滤波后的共模信号的相位和/或幅度可以基于经滤波的差分信号进行调整，并且可以从所接收的差分信号中减去经调整和滤波的共模信号。 可以经由耦合到差分沟道的一对电阻来感测共模信号。

公开(公告)号：US09525639B2

公开(公告)日：2016-12-20

申请号：US14492860

申请日：2014-09-22

Applicant: BROADCOM CORPORATION

Inventor： Kadir Dinc ,  Kishore Kota ,  Alan Youssef Kwentus ,  German Stefan Otto Feyh

IPC: G06F11/00 ,  H04J1/16 ,  H04L1/00 ,  H04L12/26 ,  H04L12/825 ,  H04L5/14

CPC classification number: H04L47/25 ,  H04L1/0002 ,  H04L1/0041 ,  H04L1/0045 ,  H04L5/1423

Abstract: Transceiver architecture includes circuitry and a method to transmit and receive high speed WAP data over lower speed cabling such as Cat5e. The method begins by measuring quality of a wired bi-directional communications channel. The method continues by selecting a maximum possible data transmission rate over the wired bi-directional communications channel for the measured quality level and when the maximum possible data transmission rate is a reduced data transmission rate less than a maximum data transmission rate of the transceivers, proportionally adjusting clock rates of circuit elements of the first and second transceiver to transfer the data at the reduced data transmission rate. The method includes dividing data frames of the data to be transmitted N times, where N=number of layers of at least a portion of identical transceiver processing circuitry which is connected to twisted wiring pairs of the wired bi-directional communications channel.

Abstract translation: 收发器架构包括电路和通过诸如Cat5e之类的低速布线发送和接收高速WAP数据的方法。 该方法开始于测量有线双向通信信道的质量。 该方法通过针对测量的质量水平选择有线双向通信信道上的最大可能数据传输速率，并且当最大可能数据传输速率是小于收发器的最大数据传输速率的数据传输速率降低时，按比例 调整第一和第二收发器的电路元件的时钟速率以以降低的数据传输速率传送数据。 该方法包括划分要发送的数据的数据帧N次，其中N =连接到有线双向通信信道的双绞线对的相同收发器处理电路的至少一部分的层数。