公开(公告)号：US09106242B2

公开(公告)日：2015-08-11

申请号：US13867580

申请日：2013-04-22

Applicant: Broadcom Corporation

Inventor： Ramon Gomez ,  Loke Tan ,  Bruce Currivan ,  Steven Jaffe ,  Thomas Kolze ,  Lin He

IPC: H03M1/06 ,  H03M1/10 ,  H03M1/12 ,  H03M1/00

CPC classification number: H03M1/06 ,  H03M1/00 ,  H03M1/0695 ,  H03M1/1061 ,  H03M1/12 ,  H03M1/1215

Abstract: A method and apparatus is disclosed to compensate for impairments within a data converter such that its output is a more accurate representation of its input. The data converter includes a main data converter, a reference data converter, and a correction module. The main data converter may be characterized as having the impairments. As a result, the output of the main data converter is not the most accurate representation of its input. The reference data converter is designed such that the impairments are not present. The correction module estimates the impairments present within the main data converter using its output and the reference data converter to generate corrections coefficients. The correction module adjusts the output of the main data converter using the corrections coefficients to improve the performance of the data converter.

Abstract translation: 公开了一种用于补偿数据转换器内的损伤的方法和装置，使得其输出是其输入的更准确的表示。 数据转换器包括主数据转换器，参考数据转换器和校正模块。 主数据转换器可以被表征为具有损伤。 因此，主数据转换器的输出不是其输入的最准确的表示。 参考数据转换器被设计成不存在损伤。 校正模块使用其输出和参考数据转换器来估计存在于主数据转换器内的损伤以产生校正系数。 校正模块使用校正系数调整主数据转换器的输出，以提高数据转换器的性能。

公开(公告)号：US09560420B2

公开(公告)日：2017-01-31

申请号：US14071332

申请日：2013-11-04

Applicant: Broadcom Corporation

Inventor： Donald G. McMullin ,  Lawrence M. Burns ,  Leonard Dauphinee ,  Ramon A. Gomez ,  Loke Tan

IPC: H04N7/173 ,  H04N21/61 ,  H04N21/258 ,  H04N21/426

CPC classification number: H04N21/6168 ,  H04N21/25883 ,  H04N21/25891 ,  H04N21/4263

Abstract: The present invention is an integrated cable modem tuner. In one embodiment, the upstream path and the downstream path are integrated on a common semiconductor substrate. The down-stream path can include a TV tuner and digital receiver portion that is integrated on a common semiconductor substrate with the power amplifier of the upstream path. In another embodiment, the TV tuner is implemented on a first semiconductor substrate and the digital receiver portion and the power amplifier are configured on a second semiconductor substrate. However, the two substrates are mounted on a common carrier so that the cable modem appears to be a single chip configuration to the user.

Abstract translation: 本发明是综合电缆调制解调器调谐器。 在一个实施例中，上游路径和下游路径被集成在公共半导体衬底上。 下行路径可以包括集成在具有上游路径的功率放大器的公共半导体衬底上的TV调谐器和数字接收器部分。 在另一个实施例中，TV调谐器被实现在第一半导体衬底上，并且数字接收器部分和功率放大器配置在第二半导体衬底上。 然而，两个基板安装在公共载体上，使得电缆调制解调器似乎是用户的单芯片配置。

公开(公告)号：US09042436B2

公开(公告)日：2015-05-26

申请号：US13850527

申请日：2013-03-26

Applicant: Broadcom Corporation

Inventor： Bruce J. Currivan ,  Loke Tan ,  Thomas Kolze ,  Hanli Zou ,  Lin He

IPC: H03H7/30 ,  H04L25/03 ,  G06F1/32

CPC classification number: H04L25/03891 ,  G06F1/3215 ,  G06F1/3278 ,  Y02D10/157 ,  Y02D50/20

Abstract: An apparatus is disclosed to compensate for non-linear effects resulting from the transmitter, the receiver, and/or the communication channel in a communication system. A receiver of the communication system contains an image cancellation module that compensates for images generated during the modulation and/or demodulation process. The image cancellation module includes a fine carrier correction loop to correct for frequency offsets between the transmitter and receiver. The image cancellation module includes a coarse acquisition mode and a decision directed mode. The decision directed mode allows for a larger signal-to-noise ratio for the receiver when compared against the coarse acquisition mode.

Abstract translation: 公开了一种用于补偿由通信系统中的发射机，接收机和/或通信信道产生的非线性效应的装置。 通信系统的接收机包含补偿在调制和/或解调过程中产生的图像的图像消除模块。 图像消除模块包括精确的载波校正环路，以校正发射机和接收机之间的频率偏移。 图像消除模块包括粗略采集模式和决策指导模式。 当与粗略采集模式进行比较时，决定导向模式允许接收机具有更大的信噪比。

公开(公告)号：US20140059632A1

公开(公告)日：2014-02-27

申请号：US14071332

申请日：2013-11-04

Applicant: Broadcom Corporation

Inventor： Donald G. McMULLIN ,  Lawrence M. Burns ,  Leonard Dauphinee ,  Ramon A. Gomez ,  Loke Tan

IPC: H04N21/61

CPC classification number: H04N21/6168 ,  H04N21/25883 ,  H04N21/25891 ,  H04N21/4263

Abstract: The present invention is an integrated cable modem tuner. In one embodiment, the upstream path and the downstream path are integrated on a common semiconductor substrate. The down-stream path can include a TV tuner and digital receiver portion that is integrated on a common semiconductor substrate with the power amplifier of the upstream path. In another embodiment, the TV tuner is implemented on a first semiconductor substrate and the digital receiver portion and the power amplifier are configured on a second semiconductor substrate. However, the two substrates are mounted on a common carrier so that the cable modem appears to be a single chip configuration to the user.

Abstract translation: 本发明是综合电缆调制解调器调谐器。 在一个实施例中，上游路径和下游路径被集成在公共半导体衬底上。 下行路径可以包括集成在具有上游路径的功率放大器的公共半导体衬底上的TV调谐器和数字接收机部分。 在另一个实施例中，TV调谐器被实现在第一半导体衬底上，并且数字接收器部分和功率放大器配置在第二半导体衬底上。 然而，两个基板安装在公共载体上，使得电缆调制解调器似乎是用户的单芯片配置。

公开(公告)号：US20130279560A1

公开(公告)日：2013-10-24

申请号：US13850527

申请日：2013-03-26

Applicant: Broadcom Corporation

Inventor： Bruce J. CURRIVAN ,  Loke Tan ,  Thomas Kolze ,  Hanli Zou ,  Lin He

IPC: H04L25/03

CPC classification number: H04L25/03891 ,  G06F1/3215 ,  G06F1/3278 ,  Y02D10/157 ,  Y02D50/20

Abstract: An apparatus is disclosed to compensate for non-linear effects resulting from the transmitter, the receiver, and/or the communication channel in a communication system. A receiver of the communication system contains an image cancellation module that compensates for images generated during the modulation and/or demodulation process. The image cancellation module includes a fine carrier correction loop to correct for frequency offsets between the transmitter and receiver. The image cancellation module includes a coarse acquisition mode and a decision directed mode. The decision directed mode allows for a larger signal-to-noise ratio for the receiver when compared against the coarse acquisition mode.

Abstract translation: 公开了一种用于补偿由通信系统中的发射机，接收机和/或通信信道产生的非线性效应的装置。 通信系统的接收机包含补偿在调制和/或解调过程中产生的图像的图像消除模块。 图像消除模块包括精确的载波校正环路，以校正发射机和接收机之间的频率偏移。 图像消除模块包括粗略采集模式和决策指导模式。 当与粗略采集模式进行比较时，决定导向模式允许接收机具有更大的信噪比。