公开(公告)号：US09391870B2

公开(公告)日：2016-07-12

申请号：US13908108

申请日：2013-06-03

Applicant: Broadcom Corporation

Inventor： Wael William Diab ,  Scott Powell

IPC: H04L12/727 ,  H04L12/12 ,  H04L12/26 ,  H04L12/801

CPC classification number: H04L45/121 ,  H04L12/12 ,  H04L43/0852 ,  H04L47/12 ,  Y02D30/30 ,  Y02D30/32 ,  Y02D50/40 ,  Y02D50/42

Abstract: Aspects of a method and system for symmetric transmit and receive latencies in an energy efficient PHY are provided. In this regard, a delay introduced by a PHY of a network device for outbound traffic and a delay introduced by the PHY for inbound traffic may be controlled such that a transmit delay of the network device is equal, within a tolerance, to a receive latency of the network device. The delays may be controlled based on whether one or more energy efficiency features are enabled in the PHY. The delay introduced by the PHY for outbound traffic may be controlled based on an amount of buffered inbound traffic. The delay introduced by the PHY for inbound traffic may be controlled based on an amount of buffered outbound traffic. The delays may be controlled such that said receive latency and the transmit latency are approximately constant regardless of a mode of operation of the network device.

公开(公告)号：US09391762B2

公开(公告)日：2016-07-12

申请号：US14250628

申请日：2014-04-11

Applicant: Broadcom Corporation

Inventor： Seppo Olavi Rousu

IPC: H04L5/08 ,  H04L5/14 ,  H04B7/26 ,  H04B1/00 ,  H04B1/40 ,  H04L5/00 ,  H04L5/16

CPC classification number: H04L5/08 ,  H04B1/006 ,  H04B1/40 ,  H04B7/2621 ,  H04L5/001 ,  H04L5/0023 ,  H04L5/0028 ,  H04L5/1461 ,  H04L5/16

Abstract: A switch arrangement is described which enable the design of a flexible front end allowing many individual and combinations of frequency band allocations to share a single antenna simultaneously. An apparatus using the switch arrangement is also described. The switch arrangement provides a single pole switch for each set of band specific filtering. The band specific filtering is connected to the pole of a respective single pole switch. The single pole switch has contact points enabling connection to of the filtering to an antenna switch both with and without a frequency selective component in the signal path. The frequency selective component allows sharing of the antenna by two or more frequency band allocations to enable simultaneous use of different radio access technologies, MIMO or Carrier Aggregation through a single antenna. When not required the frequency selective component can be switched out of the signal path to reduce insertion loss.

Abstract translation: 描述了一种开关装置，其能够设计灵活的前端，从而允许频带分配的许多个体和组合同时共享单个天线。 还描述了使用开关装置的装置。 开关装置为每组频带特定滤波提供单极开关。 带特定滤波器连接到相应单极开关的极点。 单极开关具有能够将滤波连接到具有和不具有信号路径中的频率选择分量的天线开关的接触点。 频率选择分量允许通过两个或多个频带分配来共享天线，以便能够通过单个天线同时使用不同的无线电接入技术，MIMO或载波聚合。 当不需要时，频率选择分量可以被切换出信号路径以减少插入损耗。

公开(公告)号：US09391659B2

公开(公告)日：2016-07-12

申请号：US14728832

申请日：2015-06-02

Applicant: Broadcom Corporation

Inventor： Pierre Baudin ,  Mikael Guenais

IPC: H04B1/10 ,  H04B1/12 ,  H04B1/04 ,  H04B1/525

CPC classification number: H04B1/123 ,  H04B1/0475 ,  H04B1/1027 ,  H04B1/525 ,  H04B2001/1072

Abstract: A method and apparatus for cancelling, from signals received by a radio device in a first frequency band, interference generated by the radio device in the first frequency band when the radio device transmits simultaneously radio signals on at least a second frequency band.

公开(公告)号：US09380350B2

公开(公告)日：2016-06-28

申请号：US13887932

申请日：2013-05-06

Applicant: BROADCOM CORPORATION

Inventor： Thomas J. Kolze ,  Robbert van der Wal ,  Bruce J. Currivan

IPC: G06F21/00 ,  H04L29/06 ,  H04N21/63 ,  H04H20/69 ,  H04H20/78 ,  H03M13/00 ,  H04L1/00

CPC classification number: H04N21/63 ,  H04H20/69 ,  H04H20/78

Abstract: Methods and systems for DVB-C2 are disclosed and may include receiving data encoded utilizing variable encoding, variable modulation and outer codes via a physical layer matched to a desired quality of service. An error probability may be determined for said received data and retransmission of portions of said data with error probability above an error threshold may be requested. The variable modulation may include single carrier modulation, orthogonal frequency division modulation, synchronous code division multiple access, and/or from 256 QAM to 2048 QAM or greater. The variable encoding may include forward error correction code, which may include low density parity check code.

公开(公告)号：US09380320B2

公开(公告)日：2016-06-28

申请号：US13623765

申请日：2012-09-20

Applicant: Broadcom Corporation

Inventor： Ba-Zhong Shen ,  Wade K. Wan ,  Peisong Chen

IPC: H04N7/12 ,  H04N19/86 ,  H04N19/48 ,  H04N19/82

CPC classification number: H04N19/86 ,  H04N19/48 ,  H04N19/82

Abstract: Frequency domain sample adaptive offset (SAO). Video processing of a first signal operates to generate a second video signal such that at least one characteristic of a first portion of video information of the first video signal is replicated in generating a second portion of video information, such that the first portion of video information and the second portion of video information undergo combination to generate the second video signal. Such use of the first video signal may involve replication and scaling of the first video information to generate the second portion of video information. One possible characteristic of the first portion of video information may correspond to an energy profile as a function of frequency. One or more portions of the first video signal may be employed to generate different respective portions of the second signal. Such video processing operations may be performed on a block by block basis.

公开(公告)号：US09379882B2

公开(公告)日：2016-06-28

申请号：US14268856

申请日：2014-05-02

Applicant: Broadcom Corporation

Inventor： Lowell D. Lamb ,  Glen Kramer ,  Amit Oren

IPC: H04L7/00 ,  H04M11/06 ,  H04J3/06 ,  H04B10/27

CPC classification number: H04L7/0075 ,  H04B10/27 ,  H04J3/0694 ,  H04M11/06 ,  H04M11/062

Abstract: Systems and methods are provided to use of out-of-band (OOB) channels for the transport of network-synchronization signals and network control information. These OOB channels transport synchronization and control channels over low-frequency bands outside of the frequency bands used for the data channels. Locating expensive network-synchronization functions in the optical network unit (ONU) and sharing the derived synchronization signals among multiple downstream customer premises equipment (CPE) devices results in cost savings and provides a means for maintaining a continuous, end-to-end synchronization reference, even during periods when the data channels on the copper network segment are in an energy-efficiency mode (e.g., a low-power and/or sleep mode).

Abstract translation: 提供了系统和方法来使用带外（OOB）信道来传输网络同步信号和网络控制信息。 这些OOB信道在用于数据信道的频带之外的低频带上传输同步和控制信道。 在光网络单元（ONU）中定位昂贵的网络同步功能并且在多个下游客户驻地设备（CPE）设备之间共享导出的同步信号）导致成本节省并且提供维持连续的端到端同步参考的手段 即使在铜网段上的数据信道处于能量效率模式（例如，低功率和/或睡眠模式）的期间也是如此。

公开(公告)号：US09379766B2

公开(公告)日：2016-06-28

申请号：US14664100

申请日：2015-03-20

Applicant: Broadcom Corporation

Inventor： Louis Botha ,  Philip Koekemoer ,  Sang Hun Sung ,  Ning Kong

IPC: H04B1/7115 ,  H04B1/7113 ,  H04B7/06 ,  H04B7/08 ,  H04B7/04 ,  H04B1/7103

CPC classification number: H04B1/7115 ,  H04B1/7103 ,  H04B1/7113 ,  H04B7/0413 ,  H04B7/0669 ,  H04B7/0678 ,  H04B7/0897 ,  H04B2201/70714 ,  H04B2201/7097

Abstract: Certain aspects of a method and system for achieving space and time diversity gain are disclosed. Aspects of one method may include modifying a generalization code of at least one pilot channel, to measure signal strengths for each of a plurality of received multipath signals. A portion of the plurality of received multipath signals may be combined based on the measured signal strengths. The signal strengths of the plurality of received multipath signals may be measured on a primary pilot channel by assigning its generalization code to zero. The signal strengths of the plurality of received multipath signals on a secondary pilot channel may measured by assigning its generalization code to a non-zero value.

公开(公告)号：US09379764B2

公开(公告)日：2016-06-28

申请号：US14145335

申请日：2013-12-31

Applicant: BROADCOM CORPORATION

Inventor： Matteo Conta ,  Seema Butala Anand

IPC: H04B1/48 ,  H04B1/525

CPC classification number: H04B1/525 ,  H03F1/303 ,  H03F3/193 ,  H03F3/245 ,  H03F3/45179 ,  H03F2200/255 ,  H03F2200/294 ,  H03F2200/451 ,  H03F2203/45172

Abstract: A transceiver or RF front end employing a transformer with a low loss transmit/receive (T/R) switch circuit in the ground path. In various embodiments, differential outputs of a power amplifier are coupled to the first winding of the transformer, while the input of a low noise amplifier is coupled to the second side of the transformer via a matching inductor. The T/R switch circuit, which may be a thin oxide CMOS transistor, is coupled between the second side of the transformer and ground. In operation, the T/R switch circuit may be enabled during transmit mode operations of the power amplifier, such that a low impedance path to ground is provided at the input of the low noise amplifier, thereby protecting it from high voltage swings generated by the power amplifier.

Abstract translation: 收发器或射频前端采用在接地路径中具有低损耗发射/接收（T / R）开关电路的变压器。 在各种实施例中，功率放大器的差分输出耦合到变压器的第一绕组，而低噪声放大器的输入通过匹配电感耦合到变压器的第二侧。 可以是薄氧化物CMOS晶体管的T / R开关电路耦合在变压器的第二侧和地之间。 在操作中，可以在功率放大器的发射模式操作期间使能T / R开关电路，使得在低噪声放大器的输入处提供到地的低阻抗路径，从而保护它免受由低噪声放大器产生的高电压摆动 功率放大器。

公开(公告)号：US09378887B2

公开(公告)日：2016-06-28

申请号：US13873537

申请日：2013-04-30

Applicant: BROADCOM CORPORATION

Inventor： Ahmadreza (Reza) Rofougaran

IPC: G08B13/14 ,  H01F38/14 ,  G06K7/00 ,  G06K19/07

CPC classification number: H01F38/14 ,  G06K7/0008 ,  G06K19/0701 ,  G06K19/0715

Abstract: A wireless power interface includes a plurality of coils and a control module. At least two of the plurality of coils has a different orientation with respect to at least two axes of a multi-dimensional axis system. The control module is configured to enable at least one of the plurality of coils based on electro-magnetic coupling by at least one of the plurality of coils with a coil of a wireless power device.

Abstract translation: 无线电力接口包括多个线圈和控制模块。 多个线圈中的至少两个相对于多维轴系的至少两个轴具有不同的取向。 所述控制模块被配置为使得所述多个线圈中的至少一个线圈基于由所述多个线圈中的至少一个线圈与无线功率器件的线圈的电磁耦合。

公开(公告)号：US20160182568A1

公开(公告)日：2016-06-23

申请号：US15056225

申请日：2016-02-29

Applicant: Broadcom Corporation

Inventor： Xuemin CHEN ,  Jeyhan KARAOGUZ ,  Wael William DIAB ,  David GARRETT ,  David Albert LUNDGREN ,  Rich PRODAN

IPC: H04L29/06

Abstract: A broadband gateway, which enables communication with a plurality of devices, handles at least one physical layer connection to at least one corresponding network access service provider. The broadband gateway may operate as a home gateway to negotiate with one or more visited gateways, a common authorized service area or domain (ASD) for providing services to the visited gateways. The home gateway may establish one or more corresponding communication links with the visited gateways based on the negotiated common ASD. The home gateway communicates corresponding content for the services to the visited gateways via the established corresponding communication links. The home gateway communicates information about gateway functionalities required for the services to the visited gateways. The visited gateways may port gateway functionalities forwarded by the home gateway, or may perform gateway functionality conversion to support the services, which may be acquired via the home gateway and/or the visited gateways from networks.

Abstract translation: 能够与多个设备进行通信的宽带网关处理至少一个对应的网络接入服务提供商的物理层连接。 宽带网关可以作为家庭网关操作，以与一个或多个被访问的网关，用于向被访问的网关提供服务的公共授权服务区域（ASD）协商。 家庭网关可以基于协商的公共ASD与所访问的网关建立一个或多个对应的通信链路。 家庭网关经由建立的对应通信链路将对应的服务内容传送到被访问的网关。 家庭网关将有关服务所需的网关功能的信息传送到被访问的网关。 所访问的网关可以移动由家庭网关转发的网关功能，或者可以执行网关功能转换以支持可以经由家庭网关和/或来自网络的访问网关获取的服务。