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    Fragment interface into dynamic adaptive streaming over hypertext transfer protocol presentations
    24.
    发明授权
    Fragment interface into dynamic adaptive streaming over hypertext transfer protocol presentations 有权
    片段接口进入动态自适应流超文本传输​​协议演示

    公开(公告)号：US09438654B2

    公开(公告)日：2016-09-06

    申请号：US14256393

    申请日：2014-04-18

    Applicant: Futurewei Technologies, Inc.

    Inventor： Alexander Giladi

    IPC: G06F15/16 ,  H04L29/06

    CPC classification number: H04L65/602 ,  H04L65/608 ,  H04L65/80

    Abstract: A method of Dynamic Adaptive Streaming over Hypertext Transfer Protocol (HTTP) (DASH) comprising accessing a DASH media presentation at a given time of a period on a media timeline of the DASH media presentation, and determining one or more parameters to express a state of the DASH media presentation, wherein the parameters comprise a temporal parameter that indicates the given time, and wherein the given time is relative to a start of the period.

    Abstract translation: 一种在超文本传输​​协议（HTTP）（DASH）上的动态自适应流传输方法，包括在DASH媒体呈现的媒体时间线上的一段时间的给定时间访问DASH媒体呈现，以及确定一个或多个参数以表示 DASH媒体呈现，其中所述参数包括指示给定时间的时间参数，并且其中所述给定时间相对于所述周期的开始。

    Signaling and handling content encryption and rights management in content transport and delivery
    25.
    发明授权
    Signaling and handling content encryption and rights management in content transport and delivery 有权
    信息和处理内容传输和传递中的内容加密和权限管理

    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。

    Signaling and processing content with variable bitrates for adaptive streaming
    26.
    发明授权
    Signaling and processing content with variable bitrates for adaptive streaming 有权
    用可变比特率信令和处理内容以进行自适应流

    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。

    Content-Specific Identification and Timing Behavior in Dynamic Adaptive Streaming over Hypertext Transfer Protocol
    27.
    发明申请
    Content-Specific Identification and Timing Behavior in Dynamic Adaptive Streaming over Hypertext Transfer Protocol 审中-公开
    基于超文本传输​​协议的动态自适应流中的内容特定识别和定时行为

    公开(公告)号：US20140013003A1

    公开(公告)日：2014-01-09

    申请号：US13937058

    申请日：2013-07-08

    Applicant: Futurewei Technologies, Inc.

    Inventor： Alexander Giladi

    IPC: H04L29/06

    CPC classification number: H04L65/60 ,  H04L29/06523 ,  H04L65/4084 ,  H04L65/604 ,  H04N21/2541

    Abstract: An apparatus comprises a processor configured to create a Dynamic Adaptive Streaming over Hypertext Transfer Protocol (DASH) media presentation description (MPD), wherein the MPD comprises an AssetIdentifier element associated with a period, wherein the AssetIdentifier element specifies that the period belongs to a certain asset, and wherein the asset is content including media and metadata together with the rights to use the content by a content provider, and a transmitter configured to transmit the MPD. An apparatus comprises a receiver configured to receive a Dynamic Adaptive Streaming over Hypertext Transfer Protocol (DASH) media presentation description (MPD), wherein the MPD comprises an AssetIdentifier element associated with a period, wherein the AssetIdentifier element specifies that the period belongs to a certain asset, and wherein the asset is content including media and metadata together with the rights to use the content by a content provider, and a processor configured to process the MPD.

    Abstract translation: 一种装置包括：处理器，被配置为创建超文本传输​​协议（DASH）媒体呈现描述（MPD）上的动态自适应流，其中所述MPD包括与周期相关联的AssetIdentifier元素，其中所述AssetIdentifier元素指定所述时段属于某个 资产，并且其中所述资产是包括媒体和元数据的内容以及由内容提供商使用所述内容的权利以及被配置为发送所述MPD的发送器。 一种装置包括：接收器，被配置为接收超文本传输​​协议（DASH）媒体呈现描述（MPD）上的动态自适应流，其中所述MPD包括与周期相关联的AssetIdentifier元素，其中所述AssetIdentifier元素指定所述周期属于某个 资产，并且其中所述资产是包括媒体和元数据的内容以及由内容提供商使用所述内容的权利以及被配置为处理所述MPD的处理器。

    System and method for efficient support for short cryptoperiods in template mode
    30.
    发明授权
    System and method for efficient support for short cryptoperiods in template mode 有权

    公开(公告)号：US10171233B2

    公开(公告)日：2019-01-01

    申请号：US14954765

    申请日：2015-11-30

    Applicant: Futurewei Technologies, Inc.

    Inventor： Alexander Giladi ,  Shaobo Zhang

    IPC: H04L9/06 ,  H04L9/08 ,  H04N21/262 ,  H04N21/4627 ,  H04N21/6373 ,  H04N21/835 ,  H04N21/845 ,  G06F17/30 ,  H04L29/06 ,  H04L29/08 ,  H04N21/4408 ,  H04N21/61 ,  H04N21/858

    Abstract: System and method embodiments are provided herein for efficient representation and use of initialization vectors (IVs) for encrypted segments using template mode representation in Dynamic Adaptive Streaming over Hypertext Transfer Protocol (DASH). An embodiment method includes sending in a media presentation description (MPD), from a network server to a client, a template for generating a universal resource locator (URL) to obtain an IV that is used for encrypting a segment, in absence of an IV value in the MPD, receiving from the client a URL configured according to the template, and upon receiving the URL, returning an IV corresponding to the URL to the client. Another embodiment method includes receiving in a MPD, at a client from a network server, a template for generating a URL to obtain an IV that is used for encrypting a segment, upon detecting an absence of an IV value or IV base value in the MPD, configuring a URL for the IV using the template, sending the URL for the IV, and receiving an IV.

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