公开(公告)号：US20150081865A1

公开(公告)日：2015-03-19

申请号：US14072745

申请日：2013-11-05

Applicant: BROADCOM CORPORATION

Inventor： Predrag KOSTIC ,  Darren Duane NEUMAN ,  David WU ,  Anand TONGLE ,  Rajesh Shankarrao MAMIDWAR ,  Milomir ALEKSIC

IPC: H04L12/70

CPC classification number: H04L49/505

Abstract: A system for lossless switching of traffic in a network device may be implemented when a network switch is integrated into a gateway device, or with any other data source. A processor of the gateway device may receive queue depth information for queues of the network switch. The processor may prevent data from being transmitted to congested queues of the network switch, while allowing data to be transmitted to uncongested queues. In this manner, data loss can be avoided through the network switch for data sourced from the gateway device, such as audio-video data retrieved from a hard drive, audio-video data received from a tuner, etc. Furthermore, re-transmission at higher layers can be reduced. Since the subject system observes congestion for each individual queue, only traffic destined to that particular, congested, queue is affected, e.g. paused. Traffic to non-congested queues is not affected, regardless of traffic class or egress port.

Abstract translation: 当网络交换机集成到网关设备或与任何其他数据源时，可以实现用于网络设备中的业务的无损切换的系统。 网关设备的处理器可以接收网络交换机队列的队列深度信息。 处理器可以防止数据被发送到网络交换机的拥塞队列，同时允许数据被发送到未被占用的队列。 以这种方式，可以通过用于从网关设备获取的数据的网络交换机（例如从硬盘驱动器检索的音频 - 视频数据，从调谐器接收的音频 - 视频数据）等来避免数据丢失。此外， 可以降低更高的层数。 由于主体系统观察到每个单独队列的拥塞，所以仅限于该特定的拥塞队列的业务受到影响。 暂停了 对非拥塞队列的流量不受流量级别或出口端口的影响。

公开(公告)号：US20140355625A1

公开(公告)日：2014-12-04

申请号：US13938157

申请日：2013-07-09

Applicant: Broadcom Corporation

Inventor： Xuemin CHEN ,  Yong LI ,  Rajesh Shankarrao MAMIDWAR ,  Hongtao ZHU

IPC: H04L12/24

CPC classification number: H04L65/1026 ,  H04L65/4084 ,  H04L65/605

Abstract: A distributed adaptive bit rate (ABR) proxy system may include a gateway device that includes a first transcoder and is configured to receive segments of a content item from an ABR server, and a secondary device that includes a second transcoder and is configured to receive the segments of the content item from the gateway device. The first transcoder may transcode the segments based at least in part on a first ABR profile to generate first transcoded segments, and the second transcoder may transcode the segments based at least in part on a second ABR profile to generate second transcoded segments. The gateway device may advertise the first and second ABR profiles to user devices and may transmit the first transcoded segments to the user devices in response to requests therefor. The secondary device may transmit the second transcoded segments to the user devices in response to requests therefor.

Abstract translation: 分布式自适应比特率（ABR）代理系统可以包括网关设备，其包括第一代码转换器，并且被配置为从ABR服务器接收内容项目的段，以及辅助设备，其包括第二代码转换器，并且被配置为接收 来自网关设备的内容项的段。 第一代码转换器可以至少部分地基于第一ABR简档对段进行代码转换以产生第一代码转换的段，并且第二代码转换器可以至少部分地基于第二ABR简档对段进行代码转换，以生成第二代码转换段。 网关设备可以向用户设备通告第一和第二ABR简档，并且可以响应于其请求将第一代码转换的段传送到用户设备。 辅助设备可以响应于其请求将第二代码转换的段传送到用户设备。

公开(公告)号：US20140344443A1

公开(公告)日：2014-11-20

申请号：US14020704

申请日：2013-09-06

Applicant: BROADCOM CORPORATION

Inventor： Alexander Garland MACINNIS ,  Rajesh Shankarrao MAMIDWAR

IPC: H04L12/26

CPC classification number: H04L43/08 ,  H04L65/00 ,  H04L65/602 ,  H04L65/608 ,  H04L65/80 ,  H04L67/00

Abstract: A device for providing adaptive bit rate streaming that includes a first transcoder configured to transcode a video stream based at least in part on an encoding characteristic to generate a first transcoded video stream, a network monitor configured to monitor network conditions including a network bandwidth of a network, an adjustment module configured to cause the transcoder to adjust the encoding characteristic in response to a change in the network conditions, an advertising module configured to advertise to a client device an ABR profile that corresponds to the first transcoded video stream, wherein the advertising module updates the advertised single ABR profile when the at least one encoding characteristic is adjusted, and a network interface configured to transmit segments of the first transcoded video stream to the client device via the network in response to requests therefor.

Abstract translation: 一种用于提供自适应比特率流的设备，其包括被配置为至少部分地基于编码特性对视频流进行代码转换的第一代码转换器，以生成第一代码转换的视频流;网络监视器，被配置为监视网络条件，包括网络带宽 网络，调整模块，被配置为使得所述代码转换器响应于所述网络条件的变化而调整所述编码特性;广告模块，被配置为向所述客户端设备通告对应于所述第一转码视频流的ABR简档，其中，所述广告 当调整所述至少一个编码特性时，模块更新所发布的单个ABR简档，以及网络接口，被配置为响应于其请求，经由网络将第一代码转换的视频流的段发送到客户端设备。