公开(公告)号：US20160373462A1

公开(公告)日：2016-12-22

申请号：US15186220

申请日：2016-06-17

Applicant: Futurewei Technologies, Inc.

Inventor： Xin Wang ,  Shaobo Zhang

IPC: H04L29/06 ,  H04L29/08

Abstract: An apparatus including a memory configured to store content items, and a processor operably coupled to the memory and configured to generate Uniform Resource Locator (URL) signing information based on a segment URL scope descriptor. The segment URL scope descriptor authorizes a client to access a set of the content items.

Abstract translation: 一种包括被配置为存储内容项的存储器的设备，以及可操作地耦合到所述存储器并且被配置为基于段URL范围描述符生成统一资源定位符（URL）签名信息的处理器。 段URL范围描述符授权客户端访问一组内容项。

公开(公告)号：US20160344785A1

公开(公告)日：2016-11-24

申请号：US15225415

申请日：2016-08-01

Applicant: Futurewei Technologies, Inc.

Inventor： Xin Wang ,  Yongliang Liu ,  Shaobo Zhang

IPC: H04L29/06 ,  H04L29/08

CPC classification number: H04L65/60 ,  H04L65/4092 ,  H04L65/602 ,  H04L67/02 ,  H04L67/32 ,  H04L67/42 ,  H04N21/23439 ,  H04N21/24 ,  H04N21/26258 ,  H04N21/44204 ,  H04N21/6543 ,  H04N21/6582 ,  H04N21/812 ,  H04N21/8456

Abstract: The present invention teaches new solutions based on an alternative approach to controlling client behavior in adaptive streaming applications, namely, server managed adaptive streaming. in this approach, the client makes requests for streaming content and provides extra information about its behaviors, and the server verifies the information to determine if the requests can be granted. This way, even if the client is not trusted, its behaviors can be properly and effectively controlled. Moreover, all of the solutions resulting from adopting this server managed adaptive streaming approach fit into the MPEG/3GPP standards of Dynamic Adaptive Streaming over HTTP (DASH).

公开(公告)号：US09342668B2

公开(公告)日：2016-05-17

申请号：US13941408

申请日：2013-07-12

Applicant: Futurewei Technologies, Inc.

Inventor： Xin Wang ,  Shaobo Zhang ,  Alexander Giladi ,  Yongliang Liu

IPC: G06F21/10 ,  H04L29/06 ,  H04N21/2362 ,  H04N21/254 ,  H04N21/266 ,  H04N21/4627

CPC classification number: G06F21/10 ,  H04L63/0428 ,  H04L63/205 ,  H04L65/4084 ,  H04L65/605 ,  H04L65/607 ,  H04N21/2362 ,  H04N21/2541 ,  H04N21/26613 ,  H04N21/4627

Abstract: An apparatus comprising a memory, a processor coupled to the memory and configured to obtain a protection description for media content comprising a plurality of content items, wherein the protection description comprises data signaling at least two protection mechanisms for at least two content items in a media content, wherein each of the at least two content items is protected by one or more of the at least two protection mechanisms, and wherein the protection mechanisms for the at least two content items are different, determine the protection mechanisms for the at least two content items from the data, and process the at least two content items according to their associated protection mechanisms.

Abstract translation: 一种装置，包括存储器，处理器，其耦合到所述存储器并且被配置为获得包括多个内容项目的媒体内容的保护描述，其中所述保护描述包括数据信令，用于媒体中的至少两个内容项的至少两个保护机制 内容，其中所述至少两个内容项中的每一个由所述至少两个保护机制中的一个或多个保护，并且其中所述至少两个内容项的保护机制是不同的，确定所述至少两个内容的保护机制 来自数据的项目，并根据其相关联的保护机制处理该至少两个内容项目。

公开(公告)号：US09294531B2

公开(公告)日：2016-03-22

申请号：US13939552

申请日：2013-07-11

Applicant: Futurewei Technologies, Inc.

Inventor： Shaobo Zhang ,  Xin Wang ,  Alexander Giladi ,  Xin Liu ,  Yangpo Xu ,  Changquan Ai ,  Peiyun Di

IPC: H04L29/06

CPC classification number: H04L65/601 ,  H04L65/602 ,  H04L65/607 ,  H04L65/608 ,  H04L65/80 ,  H04L67/02

Abstract: A method for adaptive streaming of a media content, wherein the method comprises receiving a media presentation description that provides presentation information for the media content, determining a plurality of representations from the media presentation description that comprise segments that are provided with bitrate and quality information, selecting a media segment that meets a desired quality level to download from one of the representations, updating a buffered media time for downloading the media segment, and determining when to switch to another representation by comparing the buffered media time to a switching threshold value.

Abstract translation: 一种用于媒体内容的自适应流传输的方法，其中所述方法包括接收媒体呈现描述，所述媒体呈现描述提供所述媒体内容的呈现信息，从所述媒体呈现描述中确定多个表示，所述表示包括具有比特率和质量信息的段， 选择满足期望质量水平的媒体片段以从表示中的一个下载，更新用于下载媒体片段的缓冲媒体时间，以及通过将缓冲的媒体时间与切换阈值进行比较来确定何时切换到另一表示。

公开(公告)号：US20160006785A1

公开(公告)日：2016-01-07

申请号：US14755648

申请日：2015-06-30

Applicant: Futurewei Technologies, Inc.

Inventor： Shaobo Zhang ,  Xin Wang

IPC: H04L29/06

CPC classification number: H04L65/602 ,  G09C1/00 ,  H04L65/608 ,  H04N21/26258 ,  H04N21/44218 ,  H04N21/44222 ,  H04N21/812 ,  H04N21/8456 ,  H04N21/85406 ,  H04N21/8543

Abstract: A content source comprising a processor configured to generate a media presentation description (MPD) file, wherein the MPD file designates a dependent media content part to be assigned to at least one depended media content part, and wherein the MPD file indicates the dependent media content part is to be accessed by a client device when an access condition for the dependent media content part is satisfied, and a transmitter operably coupled to the processor and configured to transmit the MPD file to at least one of a content server, a control server, and the client device.

Abstract translation: 一种内容源，包括被配置为生成媒体呈现描述（MPD）文件的处理器，其中所述MPD文件指定要分配给至少一个依赖的媒体内容部分的依赖媒体内容部分，并且其中所述MPD文件指示所述从属媒体内容 当满足从属媒体内容部分的访问条件时，部分将由客户端设备访问，以及可操作地耦合到处理器并被配置为将MPD文件发送到内容服务器，控制服务器， 和客户端设备。

公开(公告)号：US20150026358A1

公开(公告)日：2015-01-22

申请号：US14335519

申请日：2014-07-18

Applicant: Futurewei Technologies, Inc.

Inventor： Shaobo Zhang ,  Xin Wang

IPC: H04L29/06

CPC classification number: H04L65/601 ,  H04N5/76 ,  H04N9/8205 ,  H04N21/23439 ,  H04N21/44209 ,  H04N21/84 ,  H04N21/8456

Abstract: A computer program product that when executed by a processor causes a network device to obtain a media presentation description (MPD) that comprises instructions for retrieving one or more segments from a plurality of adaptation sets, sending a first segment request for one or more segments from a first adaptation set in accordance with the instructions provided in the MPD, receiving the segment from the first adaptation set, selecting one or more segments from a second adaptation set based on the one or more segments from the first adaptation set, sending a second segment request that requests the one or more segments from the second adaptation set, and receiving the one or more segments from the second adaptation set in response to the second segment request, wherein the first adaptation set comprises timed metadata information, and wherein the second adaptation set comprises media content.

Abstract translation: 一种计算机程序产品，当由处理器执行时，使得网络设备获得包含用于从多个适配集中检索一个或多个段的指令的媒体呈现描述（MPD），从一个或多个段中发送对于一个或多个段的第一段请求 根据MPD中提供的指令的第一适配集合，从第一适配集接收段，基于来自第一适配集的一个或多个段从第二适配集中选择一个或多个段;发送第二段 请求从第二适配集请求一个或多个段，以及响应于第二段请求从第二适配集接收一个或多个段，其中第一自适应组包括定时元数据信息，并且其中第二自适应集合 包含媒体内容。

公开(公告)号：US20140317308A1

公开(公告)日：2014-10-23

申请号：US14256607

申请日：2014-04-18

Applicant: Futurewei Technologies, Inc

Inventor： Shaobo Zhang ,  Xin Wang

IPC: H04L29/06

CPC classification number: H04L65/4069 ,  H04L65/4084 ,  H04L65/4092 ,  H04L65/607 ,  H04L65/80 ,  H04N21/23439 ,  H04N21/26258 ,  H04N21/44209 ,  H04N21/6373 ,  H04N21/647 ,  H04N21/8456

Abstract: A media representation adaptation method comprising obtaining an media presentation description (MPD) that comprises instructions for retrieving a plurality of media segments and their quality information, sending a quality information request, receiving the quality information that comprises a plurality of quality segments, selecting a media segment based on the quality information, sending a media segment request that requests the media segment, and receiving the media segment. A computer program product that when executed by a processor causes a network device to obtain an MPD that comprises instructions for retrieving a media content stream and quality information, determine a quality level threshold, request a quality information associated with the media content stream, receive the quality information, select a media segment with a corresponding quality segment that is greater than the quality level threshold, send a media segment request that requests the media segment, and receive the media segment.

Abstract translation: 一种媒体表示适配方法，包括获得媒体呈现描述（MPD），该媒体呈现描述包括用于检索多个媒体段及其质量信息的指令，发送质量信息请求，接收包括多个质量段的质量信息，选择媒体 基于质量信息分段，发送请求媒体分段的媒体分段请求，以及接收媒体分段。 一种计算机程序产品，当由处理器执行时，使网络设备获得包含用于检索媒体内容流和质量信息的指令的MPD，确定质量等级阈值，请求与媒体内容流相关联的质量信息，接收 质量信息，选择具有大于质量等级阈值的对应质量段的媒体段，发送请求媒体段的媒体段请求，并接收媒体段。

公开(公告)号：US10547659B2

公开(公告)日：2020-01-28

申请号：US15075703

申请日：2016-03-21

Applicant: Futurewei Technologies, Inc.

Inventor： Shaobo Zhang ,  Xin Wang ,  Alexander Giladi ,  Xin Liu ,  Yangpo Xu ,  Changquan Ai ,  Peiyun Di

IPC: H04L29/06 ,  H04L29/08

Abstract: A method for adaptive streaming of a media content, wherein the method comprises receiving a media presentation description that provides presentation information for the media content, determining a plurality of representations from the media presentation description that comprise segments that are provided with bitrate and quality information, selecting a media segment that meets a desired quality level to download from one of the representations, updating a buffered media time for downloading the media segment, and determining when to switch to another representation by comparing the buffered media time to a switching threshold value.

公开(公告)号：US09843615B2

公开(公告)日：2017-12-12

申请号：US14754093

申请日：2015-06-29

Applicant: Futurewei Technologies, Inc.

Inventor： Xin Wang ,  Yongliang Liu ,  Shaobo Zhang

IPC: G06F15/173 ,  H04L29/06 ,  H04L29/08

CPC classification number: H04L65/601 ,  H04L65/4084 ,  H04L65/602 ,  H04L65/607 ,  H04L65/608 ,  H04L67/06

Abstract: A client device comprising a transmitter configured to transmit a client identifier and a media presentation description (MPD) request to a content server, and a processor operably coupled to a memory and the transmitter, wherein the memory comprises computer executable instructions stored in a non-transitory computer readable medium such that when executed by the processor causes the processor to receive an MPD file following transmission of the client identifier and the MPD request, wherein the MPD file assigns a base segment to at least two variant segments, transmit a segment request to the content server following receipt of the MPD file, and receive the base segment and one of the at least two variant segments from the content server following transmission of the segment request, wherein the one of the at least two variant segments corresponds to the client identifier.

公开(公告)号：US09787652B2

公开(公告)日：2017-10-10

申请号：US15183369

申请日：2016-06-15

Applicant: Futurewei Technologies, Inc.

Inventor： Xin Wang ,  Yongliang Liu ,  Shaobo Zhang

IPC: H04L29/06 ,  H04N21/2343 ,  H04N21/2347 ,  H04N21/2662 ,  H04N21/61 ,  H04N21/6334 ,  H04N21/845 ,  H04N21/8543 ,  H04N21/235 ,  H04N21/435 ,  H04N21/4405

CPC classification number: H04L63/0457 ,  H04L63/0428 ,  H04N21/23439 ,  H04N21/23476 ,  H04N21/2353 ,  H04N21/2662 ,  H04N21/435 ,  H04N21/44055 ,  H04N21/6125 ,  H04N21/6334 ,  H04N21/8456 ,  H04N21/8543

Abstract: An apparatus for decoding a media stream includes a memory module, a processor module coupled to the memory module, wherein the memory module contains instructions that when executed by the processor cause the apparatus to perform the following: receive a media stream including a segment signaling information and a plurality of segments, wherein the plurality of segments includes encoded and unencoded segments, wherein the segment signaling information includes identification of at least two segment groups each including at least one segment, identify at least one segment group using the segment signaling information in the media stream, identify at least one segment decoding algorithm for the at least one segment group, identify at least one decoding key for the at least segment group, and decode each encoded segment within the at least segment group using the at least segment decoding algorithm and the at least one decoding key.