公开(公告)号：US20160294910A1

公开(公告)日：2016-10-06

申请号：US14734643

申请日：2015-06-09

Applicant: Broadcom Corporation

Inventor： Yong LI ,  Xuemin CHEN

IPC: H04L29/06 ,  H04N21/61 ,  H04N21/442 ,  H04N21/6587 ,  H04N21/2662 ,  H04N21/24 ,  H04L12/26 ,  H04N21/2665

CPC classification number: H04L65/607 ,  H04L47/10 ,  H04L65/1083 ,  H04L65/80 ,  H04L67/42 ,  H04N21/23439 ,  H04N21/2402 ,  H04N21/2662 ,  H04N21/2665 ,  H04N21/44209 ,  H04N21/6125 ,  H04N21/6587

Abstract: Systems and methods to deliver streaming video over a hybrid network are provided herein. An adjusted bitrate to transmit video from a server to a client is determined in response to a fast-forward or rewind request. Frames from a video are selectively transmitted to accommodate for the adjusted bitrate based and a bitrate of a connection between the server and the client.

Abstract translation: 本文提供了通过混合网络传送流视频的系统和方法。 响应于快进或快退请求确定从服务器向客户端传输视频的调整比特率。 选择性地发送来自视频的帧以适应基于调整的比特率和服务器与客户端之间的连接的比特率。

公开(公告)号：US20150312623A1

公开(公告)日：2015-10-29

申请号：US14696312

申请日：2015-04-24

Applicant: Broadcom Corporation

Inventor： Yong LI ,  Xuemin CHEN

IPC: H04N21/4363 ,  H04N21/61 ,  H04N21/6587 ,  H04N21/435 ,  H04N21/81 ,  H04N21/643 ,  H04N21/21 ,  H04N21/258

CPC classification number: H04N21/43637 ,  H04N21/21 ,  H04N21/25816 ,  H04N21/435 ,  H04N21/472 ,  H04N21/6156 ,  H04N21/643 ,  H04N21/6587 ,  H04N21/812

Abstract: A video control-plane gateway device includes at least one processor circuit. The at least one processor circuit is configured to establish a local connection with a video client device. The at least one processor circuit is configured to receive, over the local connection, a request for a video stream from the video client device. The at least one processor circuit is configured to transmit the request to a network video server via a wireless access point. The at least one processor circuit is configured to receive, from the wireless access point, control information for reception of the video stream on a downlink channel. The at least one processor circuit is configured to transmit, over the local connection, the control information to the video client device. In one or more implementations, the downlink channel is a supplementary downlink channel that is associated with a primary downlink channel through carrier aggregation.

Abstract translation: 视频控制平面网关设备包括至少一个处理器电路。 所述至少一个处理器电路被配置为建立与视频客户端设备的本地连接。 至少一个处理器电路被配置为通过本地连接从视频客户端设备接收对视频流的请求。 所述至少一个处理器电路被配置为经由无线接入点将所述请求发送到网络视频服务器。 至少一个处理器电路被配置为从无线接入点接收用于在下行链路信道上接收视频流的控制信息。 至少一个处理器电路被配置为通过本地连接将控制信息发送到视频客户端设备。 在一个或多个实现中，下行链路信道是通过载波聚合与主下行链路信道相关联的辅助下行链路信道。

公开(公告)号：US20150016821A1

公开(公告)日：2015-01-15

申请号：US13948099

申请日：2013-07-22

Applicant: Broadcom Corporation

Inventor： Yong LI ,  Xuemin Chen

IPC: H04B10/272

CPC classification number: H04B10/25751

Abstract: A content distribution system may include a headend server and media converters, the headend server being configured to distribute content items to user devices via the media converters and gateway devices. Each of the media converters may include a media converter cache and may be coupled to the headend server and a subset of the gateway devices, where each of the user devices is communicatively coupled to one of the gateway devices. The headend server may be further configured to determine one of the content items that is expected to be requested by a group of the user devices, determine one of the media converters that is coupled, via the subset of the gateway devices, to a largest number of user devices in the group of the user devices, and coordinate storing the one of the content items in the media converter cache of the one of the media converters.

Abstract translation: 内容分发系统可以包括头端服务器和媒体转换器，头端服务器被配置为经由媒体转换器和网关设备将内容分发给用户设备。 每个媒体转换器可以包括媒体转换器高速缓存，并且可以耦合到头端服务器和网关设备的子集，其中每个用户设备通信地耦合到网关设备之一。 前端服务器还可以被配置为确定期望被一组用户设备请求的内容项之一，确定通过网关设备的子集耦合到最大数量的媒体转换器之一 的用户设备组中的用户设备，并且将所述内容项中的一个存储在所述一个媒体转换器的媒体转换器高速缓存中。

公开(公告)号：US20150012707A1

公开(公告)日：2015-01-08

申请号：US13948100

申请日：2013-07-22

Applicant: Broadcom Corporation

Inventor： Yong LI ,  Xuemin CHEN

IPC: G06F12/08

CPC classification number: H04N21/23106 ,  H04L29/08729 ,  H04L67/2842 ,  H04L67/2885 ,  H04L67/34

Abstract: A system for layered local caching of downstream shared media in a hierarchical tree network arrangement includes a first network node on a first distribution network having a first caching controller. The first network node configured to store a video segment transmitted on the first distribution network based on a first instruction received by the first caching controller from a central caching controller communicatively coupled to the first distribution network. The central caching controller is located upstream from the first network node. The system includes a second network node on a second distribution network having a second caching controller and communicatively coupled to the first network node. The second network node configured to store a video segment transmitted on the second distribution network based on a second instruction received by the second caching controller from the first caching controller.

Abstract translation: 用于分级树形网络布置中的下游共享介质的分层局部缓存的系统包括具有第一高速缓存控制器的第一分配网络上的第一网络节点。 第一网络节点被配置为基于通信地耦合到第一分发网络的中央缓存控制器，基于由第一高速缓存控制器接收的第一指令来存储在第一分发网络上发送的视频段。 中央缓存控制器位于第一个网络节点的上游。 该系统包括具有第二高速缓存控制器并且通信地耦合到第一网络节点的第二分配网络上的第二网络节点。 第二网络节点被配置为基于由第二高速缓存控制器从第一高速缓存控制器接收的第二指令来存储在第二分发网络上发送的视频段。

公开(公告)号：US20150012615A1

公开(公告)日：2015-01-08

申请号：US13960756

申请日：2013-08-06

Applicant: Broadcom Corporation

Inventor： Yong LI ,  Xuemin Chen

IPC: H04L29/06

CPC classification number: H04L65/60 ,  H04L65/605 ,  H04L65/607

Abstract: A system includes one or more network media service devices, with each network media node operably connected upstream to one or more gateway devices. At least one of the network media service devices is configured to intercept an ABR-related request to receive digital media content for a media channel sent from a client set top box to a remote ABR server located upstream from the at least one network media device, identify a second gateway device that is storing the digital media content, the second gateway device having previously received the digital media content from the remote ABR server, and return a network address of the second gateway device to the client set top box for use by the client set top box to receive the digital media content from the second gateway device. In various implementations, the network address is returned in connection with an HTTP response indicating a redirection to the network address.

Abstract translation: 系统包括一个或多个网络媒体服务设备，其中每个网络媒体节点可操作地连接到一个或多个网关设备的上游。 网络媒体服务设备中的至少一个被配置为拦截ABR相关请求，以接收从客户端机顶盒发送到位于至少一个网络媒体设备上游的远程ABR服务器的媒体信道的数字媒体内容， 识别正在存储数字媒体内容的第二网关设备，第二网关设备先前已经从远程ABR服务器接收到数字媒体内容，并将第二网关设备的网络地址返回到客户端机顶盒，供第 客户机顶盒从第二网关设备接收数字媒体内容。 在各种实现中，网络地址与指示重定向到网络地址的HTTP响应相关联地返回。

公开(公告)号：US20150009403A1

公开(公告)日：2015-01-08

申请号：US13948103

申请日：2013-07-22

Applicant: Broadcom Corporation

Inventor： Yong LI ,  Xuemin CHEN

IPC: H04N7/01 ,  H04N19/423

CPC classification number: H04N19/423 ,  H04N19/40 ,  H04N21/23106 ,  H04N21/2343 ,  H04N21/64322

Abstract: A system for transcoding locally cached content may include a memory configured to store at least a video stream. A controller communicatively coupled to the memory may be configured to determine a video definition format of a requested video stream and compare the requested video stream with a video definition format of a cached version of the requested video stream. A transcoder coupled to the controller may be configured to convert the cached version of the requested video stream to a lower video definition format if the video definition format of the cached version is determined to be higher than the video definition format of the requested video stream. If the video definition format of the requested video stream is same as the video definition format of the cached version, the controller may supply the requested video stream using the cached version stored in the memory without transcoding.

Abstract translation: 用于代码转换本地缓存的内容的系统可以包括被配置为存储至少一个视频流的存储器。 通信地耦合到存储器的控制器可以被配置为确定所请求的视频流的视频定义格式，并将所请求的视频流与所请求的视频流的缓存版本的视频定义格式进行比较。 耦合到控制器的代码转换器可以被配置为如果确定缓存版本的视频定义格式高于所请求的视频流的视频定义格式，则将所请求的视频流的高速缓存版本转换为较低的视频定义格式。 如果请求的视频流的视频定义格式与缓存版本的视频定义格式相同，则控制器可以使用存储在存储器中的高速缓存版本来提供所请求的视频流，而不需要转码。

公开(公告)号：US20150312888A1

公开(公告)日：2015-10-29

申请号：US14696329

申请日：2015-04-24

Applicant: Broadcom Corporation

Inventor： Yong LI ,  Xuemin CHEN

IPC: H04W72/04 ,  H04L29/12 ,  H04W74/00 ,  H04W76/02

CPC classification number: H04W74/006 ,  H04W28/16 ,  H04W48/00 ,  H04W76/11 ,  H04W88/06

Abstract: A device for providing downlink channel access for non-operator devices includes at least one processor circuit. The at least one processor circuit is configured to establish a local connection with an operator device that is serviced by a network operator. The at least one processor circuit is configured to provide, to the operator device over the local connection, a request to establish a connection to a network, the request comprising a destination address. The at least one processor circuit is configured to receive, from the operator device over the local connection, control information for reception of a downlink channel provisioned by the network operator for the operator device. The at least one processor circuit is configured to receive downlink data associated with the destination address on the downlink channel and provide, to the operator device, uplink data associated with the destination address for transmission to the network.

Abstract translation: 用于为非操作者设备提供下行链路信道接入的设备包括至少一个处理器电路。 所述至少一个处理器电路被配置为建立与由网络运营商服务的运营商设备的本地连接。 所述至少一个处理器电路被配置为通过本地连接向操作者设备提供建立到网络的连接的请求，所述请求包括目的地地址。 至少一个处理器电路被配置为通过本地连接从操作者设备接收用于接收网络运营商为操作员设备提供的下行链路信道的控制信息。 所述至少一个处理器电路被配置为接收与所述下行链路信道上的目的地地址相关联的下行链路数据，并向所述运营商设备提供与所述目的地地址相关联的上行链路数据，以传输到所述网络。

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：US20140355624A1

公开(公告)日：2014-12-04

申请号：US13929696

申请日：2013-06-27

Applicant: Broadcom Corporation

Inventor： Yong LI ,  Bradley Donald Blanche ,  Xuemin Chen

IPC: H04L12/24

CPC classification number: H04Q11/0478 ,  H04L27/00 ,  H04N21/23439 ,  H04N21/26258 ,  H04N21/44209 ,  H04N21/4524 ,  H04N21/631 ,  H04N21/8456

Abstract: A system for transmitting multiple adaptive bit rate (ABR) segment streams on a shared frequency may include an ABR segment generator and transmitter circuitry. The ABR segment generator may encode a content item based at least in part on different ABR profiles to generate encoded streams. The ABR profiles may indicate encoding parameters corresponding to the encoded streams, e.g., bit rates, resolutions, frame rates and/or codecs. The ABR segment generator may be further configured to segment the encoded streams to generate ABR segment streams. The transmitter circuitry may be configured to transmit the ABR segment streams on a shared frequency, such as by transmitting the segment streams over spatially separated antennas, or by applying different orbital angular momentums to the ABR segment streams. In one or more implementations, the system may further include a segment interleaver that is configured to interleave the ABR segment streams.

Abstract translation: 用于在共享频率上发送多个自适应比特率（ABR）段流的系统可以包括ABR段发生器和发射机电路。 ABR段生成器可以至少部分地基于不同的ABR简档对内容项进行编码，以生成编码流。 ABR简档可以指示对应于编码流的编码参数，例如比特率，分辨率，帧速率和/或编解码器。 ABR段生成器还可以被配置为分段编码流以生成ABR段流。 发射机电路可以被配置为在共享频率上发送ABR分段流，例如通过在空间分离的天线上发射分段流，或者通过向ABR分段流应用不同的轨道角动量。 在一个或多个实现中，系统还可以包括被配置为交织ABR段流的段交织器。

公开(公告)号：US20140355603A1

公开(公告)日：2014-12-04

申请号：US13928248

申请日：2013-06-26

Applicant: Broadcom Corporation

Inventor： Yong LI ,  Xuemin Chen ,  Rajesh Shankarrao Mamidwar

IPC: H04L12/18

CPC classification number: H04L12/184

Abstract: A system for adaptive bit rate distribution of multicast streams may include one or more processors and a memory. The one or more processors may be configured to identify streams, such as multicast streams, transmitted by a content delivery network. The streams may each contain a content item that is encoded at a different bit rate for each stream. The one or more processors may determine segments of the streams, for example based on time stamps associated with the content item or markers of the streams. The one or more processors may transmit a first segment of a first stream encoded at a first bit rate to a user device in response to a request therefor and, upon completing the transmission of the first segment, transmit a second segment of a second stream encoded at a second bit rate to the user device in response to a request therefor.

Abstract translation: 用于组播流的自适应比特率分配的系统可以包括一个或多个处理器和存储器。 一个或多个处理器可以被配置为识别由内容传送网络发送的诸如多播流的流。 流可以各自包含以每个流的不同比特率编码的内容项。 一个或多个处理器可以例如基于与流的内容项或标记相关联的时间戳来确定流的段。 一个或多个处理器可以响应于其请求向第一比特率传送以第一比特率编码的第一流的第一段，并且在完成第一段的传输时，发送编码的第二流的第二段 响应于其请求以用户设备的第二比特率。