公开(公告)号：US09681197B2

公开(公告)日：2017-06-13

申请号：US14338590

申请日：2014-07-23

Applicant: General Instrument Corporation

Inventor： Krishna Prasad Panje ,  William P. Franks ,  Murali Sahasranaman

IPC: H04N7/173 ,  H04N21/6587 ,  H04N21/845 ,  H04N21/2387 ,  H04N21/262 ,  H04N21/61 ,  H04N21/643 ,  H04N21/854

CPC classification number: H04N21/6587 ,  H04N21/2387 ,  H04N21/26258 ,  H04N21/6125 ,  H04N21/64322 ,  H04N21/845 ,  H04N21/8455 ,  H04N21/8456 ,  H04N21/85406

Abstract: A method of operating a server and an IP client device for presentation of video content to a viewer that includes a trickplay function. The server partitions media chunks into several sub chunks and includes information about the sub chunks in a manifest. The client plays the needed sub chunks to implement a desired play rate. As an alternative to providing sub chunk information in the manifest, the server sends key frame information in the manifest. The client plays needed frames of the key frames to implement a desired play rate. The sub chunk information as well as key frame information is encoded into the manifest as a standard comment or chunk filename. In another alternative, the IP client sends a trickplay request and based on that, the server signals either the sub chunks to be played or the key frames to be played to affect the desired speed. In yet another variation, the server can also remove the unwanted sub chunks or key frames to affect the desired play rate at the IP client.

公开(公告)号：US20140337904A1

公开(公告)日：2014-11-13

申请号：US14338590

申请日：2014-07-23

Applicant: General Instrument Corporation

Inventor： Krishna Prasad Panje ,  William P. Franks ,  Murali Sahasranaman

IPC: H04N21/6587 ,  H04N21/235 ,  H04N21/643 ,  H04N21/437 ,  H04N21/61 ,  H04N21/2387 ,  H04N21/238

CPC classification number: H04N21/6587 ,  H04N21/2387 ,  H04N21/26258 ,  H04N21/6125 ,  H04N21/64322 ,  H04N21/845 ,  H04N21/8455 ,  H04N21/8456 ,  H04N21/85406

Abstract: A method of operating a server and an IP client device for presentation of video content to a viewer that includes a trickplay function. The server partitions media chunks into several sub chunks and includes information about the sub chunks in a manifest. The client plays the needed sub chunks to implement a desired play rate. As an alternative to providing sub chunk information in the manifest, the server sends key frame information in the manifest. The client plays needed frames of the key frames to implement a desired play rate. The sub chunk information as well as key frame information is encoded into the manifest as a standard comment or chunk filename. In another alternative, the IP client sends a trickplay request and based on that, the server signals either the sub chunks to be played or the key frames to be played to affect the desired speed. In yet another variation, the server can also remove the unwanted sub chunks or key frames to affect the desired play rate at the IP client.

Abstract translation: 一种操作服务器和IP客户端设备的方法，用于将视频内容呈现给包括特技播放功能的观众。 服务器将媒体块分成几个子块，并包含有关清单中子块的信息。 客户端播放所需的子块以实现所需的播放速率。 作为在清单中提供子块信息的替代方案，服务器在清单中发送关键帧信息。 客户端播放关键帧的所需帧以实现所需的播放速率。 子块信息以及关键帧信息被编码到清单中作为标准注释或块文件名。 在另一个替代方案中，IP客户端发送特技播放请求，并且基于此，服务器发送要播放的子块或要播放的关键帧以影响所需速度。 在另一个变型中，服务器还可以去除不想要的子块或关键帧以影响IP客户端的期望播放速率。

公开(公告)号：US20140129618A1

公开(公告)日：2014-05-08

申请号：US13672691

申请日：2012-11-08

Applicant: GENERAL INSTRUMENT CORPORATION

Inventor： Krishna Prasad Panje ,  Sundar Murthy Tumuluru

IPC: G06F15/16

CPC classification number: H04N21/222 ,  H04N21/26258 ,  H04N21/26291 ,  H04N21/472

Abstract: A method of streaming multimedia data over a network to a client device is provided. At least one playlist file is downloaded using a transfer protocol, such as HLS, from a streaming server over the network for a selected multimedia presentation. The client device subscribes to an update event notification service with the streaming server or an intermediate server with respect to the at least one playlist file for the selected multimedia presentation and then listens for an update event notification. Only when such a notification is transmitted by the streaming server or the intermediate server to the client device is an updated version of the at least one playlist file downloaded by the client device from the streaming server over the network using the transfer protocol.

Abstract translation: 提供了一种通过网络将多媒体数据流式传输到客户端设备的方法。 使用诸如HLS的传输协议从网络上的流式服务器下载至少一个播放列表文件，用于所选择的多媒体呈现。 客户端设备与所选择的多媒体呈现相关的至少一个播放列表文件与流服务器或中间服务器订阅更新事件通知服务，然后监听更新事件通知。 只有当流式传输服务器或中间服务器将这样的通知传送到客户端设备时，才是使用传输协议通过网络从流式服务器通过客户端设备下载的至少一个播放列表文件的更新版本。

公开(公告)号：US09584557B2

公开(公告)日：2017-02-28

申请号：US14207487

申请日：2014-03-12

Applicant: General Instrument Corporation

Inventor： Krishna Prasad Panje ,  William P. Franks ,  Praveen N. Moorthy ,  Paul Moroney ,  Murali Sahasranaman

IPC: G06F15/16 ,  H04L29/06 ,  H04L29/08 ,  H04N21/262 ,  H04N21/6587 ,  H04N21/845

CPC classification number: H04L65/105 ,  H04L65/4069 ,  H04L65/4084 ,  H04L65/60 ,  H04L65/602 ,  H04L65/607 ,  H04L65/608 ,  H04L65/80 ,  H04L67/02 ,  H04N21/26258 ,  H04N21/6587 ,  H04N21/8456

Abstract: A method for preparing streaming media content to be rendered by a media player employs a proxy for the media player. The proxy sends a request over a network to a content server. In response, a rolling manifest file is received by the proxy. The manifest file includes a sequence of media segment URLs indicating an ordering of the media segments that create a representation of a portion of the content stream. The URLs follow a predefined naming convention that allows URLs occurring prior to and subsequent to the URLs included in the manifest file to be predicted. The proxy predicts additional URLs that occur prior to and/or subsequent to the URLs included in the manifest file. The manifest file is modified by inserting the additional media segment URLs into the manifest file. The additional URLs are sequentially located before or after the URLs included in the manifest file.

Abstract translation: 用于准备由媒体播放器呈现的流媒体内容的方法使用媒体播放器的代理。 代理通过网络向内容服务器发送请求。 作为响应，代理接收到滚动清单文件。 清单文件包括指示创建内容流的一部分的表示的媒体段的排序的一系列媒体段URL。 URL遵循预定义的命名约定，允许在清单文件中包含的URL之前和之后发生的URL被预测。 代理预测在清单文件中包含的URL之前和/或之后发生的附加URL。 通过将附加的媒体段URL插入清单文件来修改清单文件。 额外的URL依次位于清单文件中包含的URL之前或之后。

公开(公告)号：US20140282771A1

公开(公告)日：2014-09-18

申请号：US13802316

申请日：2013-03-13

Applicant: GENERAL INSTRUMENT CORPORATION

Inventor： Sundar Murthy Tumuluru ,  Krishna Prasad Panje

IPC: H04N21/2662

CPC classification number: H04N21/2662 ,  H04N21/234327 ,  H04N21/64322

Abstract: A method performed by an apparatus provides for adaptive bit rate content delivery to one or more client devices. The method includes: receiving data presentation content encoded into a first data stream using a first set of encoding parameters, wherein the first data stream comprises a first plurality of frames corresponding to a first encoded bit rate, wherein each frame in the first plurality of frames includes as payload a portion of the data presentation content; receiving a request, for a client device, for a second data stream having a second bit rate that is lower than the first encoded bit rate; determining a first subset of the first plurality of frames, which corresponds to the second bit rate, and generating the second data stream using the first subset of the first plurality of frames, for delivering the data presentation content to the client device.

Abstract translation: 由装置执行的方法提供对一个或多个客户端设备的自适应比特率内容传送。 该方法包括：使用第一组编码参数接收编码到第一数据流中的数据呈现内容，其中第一数据流包括对应于第一编码比特率的第一多个帧，其中第一多个帧中的每个帧 包括数据呈现内容的一部分作为有效载荷; 为客户端设备接收具有低于第一编码比特率的第二比特率的第二数据流的请求; 确定对应于第二比特率的第一多个帧的第一子集，以及使用第一多个帧的第一子集生成第二数据流，以将数据呈现内容递送到客户端设备。

公开(公告)号：US20140099079A1

公开(公告)日：2014-04-10

申请号：US13794715

申请日：2013-03-11

Applicant: General Instrument Corporation

Inventor： Muralidharan Narayanan ,  Christopher S. Del Sordo ,  Surya P. Maheswaram ,  Krishna Prasad Panje ,  Ernest G. Schmitt ,  Yaxi Zhang

IPC: H04N5/956 ,  H04N21/4147 ,  H04N21/43 ,  H04N7/26

CPC classification number: H04N5/956 ,  H04N19/196 ,  H04N19/70 ,  H04N21/4147 ,  H04N21/4307

Abstract: A method of processing a sequence of coded video frames conveyed by a digital data stream, where each frame represents an image, includes receiving the sequence of coded video frames at a recording device, determining a frame interval between presentation of an ith coded frame of the sequence and an (i+1)th coded frame of the sequence, calculating a stream time stamp for the ith coded frame, and calculating a stream time stamp for the (i+1)th coded video frame based on the stream time stamp for the ith coded video frame and the previously determined frame interval.

Abstract translation: 一种处理由数字数据流传送的编码视频帧序列的方法，其中每个帧表示图像，包括在记录装置处接收编码视频帧序列，确定呈现第一编码帧的帧间隔 序列和第（i + 1）个编码帧，计算第i个编码帧的流时间戳，并且基于流时间戳计算第（i + 1）个编码视频帧的流时间戳， 第i个编码视频帧和先前确定的帧间隔。

公开(公告)号：US20140337411A1

公开(公告)日：2014-11-13

申请号：US14207487

申请日：2014-03-12

Applicant: General Instrument Corporation

Inventor： Krishna Prasad Panje ,  William P. Franks ,  Praveen N. Moorthy ,  Paul Moroney ,  Murali Sahasranaman

IPC: H04L29/06

CPC classification number: H04L65/105 ,  H04L65/4069 ,  H04L65/4084 ,  H04L65/60 ,  H04L65/602 ,  H04L65/607 ,  H04L65/608 ,  H04L65/80 ,  H04L67/02 ,  H04N21/26258 ,  H04N21/6587 ,  H04N21/8456

Abstract: A method for preparing streaming media content to be rendered by a media player employs a proxy for the media player. The proxy sends a request over a network to a content server. In response, a rolling manifest file is received by the proxy. The manifest file includes a sequence of media segment URLs indicating an ordering of the media segments that create a representation of a portion of the content stream. The URLs follow a predefined naming convention that allows URLs occurring prior to and subsequent to the URLs included in the manifest file to be predicted. The proxy predicts additional URLs that occur prior to and/or subsequent to the URLs included in the manifest file. The manifest file is modified by inserting the additional media segment URLs into the manifest file. The additional URLs are sequentially located before or after the URLs included in the manifest file.

Abstract translation: 用于准备由媒体播放器呈现的流媒体内容的方法使用媒体播放器的代理。 代理通过网络向内容服务器发送请求。 作为响应，代理接收到滚动清单文件。 清单文件包括指示创建内容流的一部分的表示的媒体段的排序的一系列媒体段URL。 URL遵循预定义的命名约定，允许在清单文件中包含的URL之前和之后发生的URL被预测。 代理预测在清单文件中包含的URL之前和/或之后发生的附加URL。 通过将附加的媒体段URL插入清单文件来修改清单文件。 额外的URL依次位于清单文件中包含的URL之前或之后。

公开(公告)号：US20140281010A1

公开(公告)日：2014-09-18

申请号：US14207481

申请日：2014-03-12

Applicant: General Instrument Corporation

Inventor： Krishna Prasad Panje ,  William P. Franks ,  Praveen N. Moorthy ,  Paul Moroney ,  Murali Sahasranaman

IPC: H04L29/06

CPC classification number: H04L65/105 ,  H04L65/4069 ,  H04L65/4084 ,  H04L65/60 ,  H04L65/602 ,  H04L65/607 ,  H04L65/608 ,  H04L65/80 ,  H04L67/02 ,  H04N21/26258 ,  H04N21/6587 ,  H04N21/8456

Abstract: A method for preparing media content to be streamed to a client divides a stream of the media content at the server into multiple media segments. Each of the multiple media segments is to be stored as an individual file in a memory in a transfer protocol compliant format. A top-level manifest file is generated, which has a plurality of Universal Resource Locators (URLs). The plurality of URLs indicates an ordering of the multiple media segments to recreate the stream of media content. Responsive to a client request received over a network to present the media content in a trick play mode of operation, a modified manifest file is obtained based on the top-level manifest file. The modified manifest file includes a subset of the plurality of URLs indicating an ordering of media segments that create a representation of the stream of media content presentable in the trick play mode of operation.

Abstract translation: 用于准备要流传输给客户的媒体内容的方法将服务器处的媒体内容流划分成多个媒体片段。 多个媒体片段中的每一个将以传输协议兼容格式作为独立文件存储在存储器中。 生成顶级清单文件，其具有多个通用资源定位符（URL）。 多个URL指示多个媒体段重新创建媒体内容流的顺序。 响应于通过网络接收到的以特技播放操作模式呈现媒体内容的客户端请求，基于顶级清单文件获得修改的清单文件。 修改的清单文件包括指示在特技播放操作模式中呈现的媒体内容流的表示的媒体段的排序的多个URL的子集。

公开(公告)号：US20140280750A1

公开(公告)日：2014-09-18

申请号：US13830616

申请日：2013-03-14

Applicant: GENERAL INSTRUMENT CORPORATION

Inventor： Krishna Prasad Panje ,  Murali Sahasranaman ,  Sundar Murthy Tumuluru ,  S N Karthick ,  Somesh Saraf

IPC: H04L29/06

CPC classification number: H04L67/2804 ,  H04L29/06027 ,  H04L65/602 ,  H04L65/608

Abstract: In a streaming server, companion content may be received and incorporated along with media that is streamed to clients. The companion content may originate from one of the clients, in some cases. In other cases, the companion content may originate from a source other than a client. The companion content may be any media relates to the media being streamed to the clients or directives that control the processing of the media being streamed to the clients.

Abstract translation: 在流式传输服务器中，伴随的内容可以被接收并且与被流传输给客户端的媒体一起被并入。 在某些情况下，伴随内容可能来自其中一个客户端。 在其他情况下，伴随内容可能源自客户端以外的来源。 伴随内容可以是任何媒体与被流传输给客户端的媒体有关，或指令控制流向客户端的媒体的处理。

公开(公告)号：US20140119429A1

公开(公告)日：2014-05-01

申请号：US13664456

申请日：2012-10-31

Applicant: GENERAL INSTRUMENT CORPORATION

Inventor： Krishna Prasad Panje ,  Sundar Murthy Tumuluru

IPC: H04N7/26

CPC classification number: H04N21/434 ,  H04N21/4425 ,  H04N21/81

Abstract: A device and a method are disclosed. The device contains a network interface configured to receive a media stream, a processing device coupled to the network interface and configured to implement the method to determine an unknown media encoding format of a media stream, and a decoder device configured to decode media frames of the media stream.

Abstract translation: 公开了一种装置和方法。 该设备包括被配置为接收媒体流的网络接口，耦合到网络接口并被配置为实现确定媒体流的未知媒体编码格式的方法的处理设备，以及被配置为对媒体流的媒体帧进行解码的解码器设备 媒体流。