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1. 发明授权

US09584557B2 Proxy for facilitating streaming of media from server to client 有权
标题翻译：用于促进从服务器到客户端的媒体流的代理
公开(公告)号：US09584557B2
公开(公告)日：2017-02-28
申请号：US14207487
申请日：2014-03-12
申请人： General Instrument Corporation
发明人： Krishna Prasad Panje , William P. Franks , Praveen N. Moorthy , Paul Moroney , Murali Sahasranaman
IPC分类号： G06F15/16 , H04L29/06 , H04L29/08 , H04N21/262 , H04N21/6587 , H04N21/845
CPC分类号： H04L65/105 , H04L65/4069 , H04L65/4084 , H04L65/60 , H04L65/602 , H04L65/607 , H04L65/608 , H04L65/80 , H04L67/02 , H04N21/26258 , H04N21/6587 , H04N21/8456
摘要： 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.
摘要翻译：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。

2. 发明授权

US09549000B2 Streaming media from a server delivering individualized content streams to clients 有权
标题翻译：从服务器流式传输媒体，为客户端提供个性化的内容流
公开(公告)号：US09549000B2
公开(公告)日：2017-01-17
申请号：US14207481
申请日：2014-03-12
申请人： General Instrument Corporation
发明人： Krishna Prasad Panje , William P. Franks , Praveen N. Moorthy , Paul Moroney , Murali Sahasranaman
IPC分类号： G06F15/16 , H04L29/06 , H04N21/262 , H04N21/6587 , H04N21/845
CPC分类号： H04L65/105 , H04L65/4069 , H04L65/4084 , H04L65/60 , H04L65/602 , H04L65/607 , H04L65/608 , H04L65/80 , H04L67/02 , H04N21/26258 , H04N21/6587 , H04N21/8456
摘要： 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.
摘要翻译：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。

3. 发明申请

US20140337411A1 PROXY FOR FACILITATING STREAMING OF MEDIA FROM SERVER TO CLIENT 有权
标题翻译：为客户提供从服务器到媒体流媒体的代码
公开(公告)号：US20140337411A1
公开(公告)日：2014-11-13
申请号：US14207487
申请日：2014-03-12
申请人： General Instrument Corporation
发明人： Krishna Prasad Panje , William P. Franks , Praveen N. Moorthy , Paul Moroney , Murali Sahasranaman
IPC分类号： H04L29/06
CPC分类号： H04L65/105 , H04L65/4069 , H04L65/4084 , H04L65/60 , H04L65/602 , H04L65/607 , H04L65/608 , H04L65/80 , H04L67/02 , H04N21/26258 , H04N21/6587 , H04N21/8456
摘要： 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.
摘要翻译：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。

4. 发明申请

US20140281010A1 STREAMING MEDIA FROM A SERVER DELIVERING INDIVIDUALIZED CONTENT STREAMS TO CLIENTS 有权
标题翻译：从向客户提供个性化内容流的服务器流媒体
公开(公告)号：US20140281010A1
公开(公告)日：2014-09-18
申请号：US14207481
申请日：2014-03-12
申请人： General Instrument Corporation
发明人： Krishna Prasad Panje , William P. Franks , Praveen N. Moorthy , Paul Moroney , Murali Sahasranaman
IPC分类号： H04L29/06
CPC分类号： H04L65/105 , H04L65/4069 , H04L65/4084 , H04L65/60 , H04L65/602 , H04L65/607 , H04L65/608 , H04L65/80 , H04L67/02 , H04N21/26258 , H04N21/6587 , H04N21/8456
摘要： 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.
摘要翻译：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。

5. 发明申请

US20140270717A1 SYSTEM AND METHOD FOR CONTROLLING AND MANAGING DIGITAL MEDIA RECORDING 审中-公开
标题翻译：用于控制和管理数字媒体记录的系统和方法
公开(公告)号：US20140270717A1
公开(公告)日：2014-09-18
申请号：US14207479
申请日：2014-03-12
申请人： GENERAL INSTRUMENT CORPORATION
发明人： Kuang M. Chen , William P. Franks , Paul Moroney
IPC分类号： H04N21/4227 , H04N21/4147 , H04N21/433 , H04N21/41
CPC分类号： H04N21/4227 , H04N21/4126 , H04N21/4147 , H04N21/4334 , H04N21/4583
摘要： A method of scheduling a digital video recording via a remote device, comprising providing a digital video recorder comprising one or more tuners and a recording database stored on a storage device within the digital video recorder, the recording database being configured to store one or more recording schedules that describe programming events to be recorded by the digital video recorder, receiving a message over a data network connection from a remote device, the message describing instructions to add a new recording schedule about a particular programming event to the recording database, comprising a program identifier, a program name, a program icon URL, a channel identifier, a start time, an end time, a deletion priority, and a recording type, processing the message to add the new recording schedule to the recording database, and transmitting an error message to the remote device when the new recording schedule conflicts with another recording schedule already stored in the recording database.
摘要翻译：一种通过远程设备调度数字视频记录的方法，包括提供包括一个或多个调谐器的数字视频记录器和存储在数字视频记录器内的存储设备上的记录数据库，记录数据库被配置为存储一个或多个记录描述由数字视频记录器记录的编程事件的时间表，通过数据网络连接从远程设备接收消息，描述用于向记录数据库添加关于特定节目事件的新记录时间表的指令的消息，包括程序标识符，程序名称，程序图标URL，通道标识符，开始时间，结束时间，删除优先级和记录类型，处理该消息以将新的记录计划添加到记录数据库，并发送错误当新的记录计划与已经存储在记录中的另一记录调度冲突时，向远程设备发送消息数据库。

6. 发明申请

US20140376719A1 DTCP Converter for HLS 有权
标题翻译：用于HLS的DTCP转换器
公开(公告)号：US20140376719A1
公开(公告)日：2014-12-25
申请号：US14312536
申请日：2014-06-23
申请人： General Instrument Corporation
发明人： Paul Moroney , Geetha Mangalore , William P. Franks
IPC分类号： H04N21/647 , H04L9/30
CPC分类号： H04N21/64715 , H04L9/0861 , H04L63/00 , H04L63/061 , H04L63/123 , H04L65/1026 , H04L65/608 , H04L65/80 , H04L69/16 , H04L2209/20 , H04L2209/60 , H04N7/1675 , H04N7/17318 , H04N21/23439 , H04N21/2351 , H04N21/2381 , H04N21/26258 , H04N21/26613 , H04N21/4126 , H04N21/4181 , H04N21/433 , H04N21/435 , H04N21/4363 , H04N21/440218 , H04N21/4408 , H04N21/47217 , H04N21/4825 , H04N21/6118 , H04N21/6131 , H04N21/64322 , H04N21/6587 , H04N21/8355 , H04N21/8456
摘要： A method for DTCP to HLS conversion is provided that starts with a standard DTCP Protected Content Packet (PCP) structure. The PCP payload data is chunked at defined chunk boundaries. Each chunk is then appended with a pad to be compatible with HLS. An HLS playlist is then provided using the PCP header with identification of the chunks and a keytag. The chunk is encrypted with a DTCP key calculated by the DTCP standard using: (a) copy control bits; (b) a nonce, and (c) an exchange key ID. Relevant PCP header fields are provided in the keytag for the HLS playlist, including the value of the copy control bits, the nonce and the exchange key ID, supporting the transaction that enables calculation of the DTCP content key to enable later decryption of the chunks.
摘要翻译：提供了一种用于DTCP到HLS转换的方法，其以标准DTCP保护内容分组（PCP）结构开始。 PCP有效载荷数据在定义的块边界处分块。然后每个块都附加一个与HLS兼容的焊盘。然后使用具有块的标识和密钥标签的PCP头提供HLS播放列表。使用以下方式由DTCP标准计算的DTCP密钥对该块进行加密：（a）复制控制位; （b）随机数，和（c）交换密钥ID。在用于HLS播放列表的密钥标签中提供相关的PCP头字段，包括复制控制比特的值，随机数和交换密钥ID，支持可以计算DTCP内容密钥的事务，以便稍后解密该块。

7. 发明申请

US20140282760A1 METHODS OF IMPLEMENTING TRICKPLAY 有权
标题翻译：实施TRICKPLAY的方法
公开(公告)号：US20140282760A1
公开(公告)日：2014-09-18
申请号：US13832191
申请日：2013-03-15
申请人： GENERAL INSTRUMENT CORPORATION
发明人： Krishna Prasad Panje , William P. Franks , Murali Sahasranaman
IPC分类号： H04N21/6587
CPC分类号： H04N21/6587 , H04N21/2387 , H04N21/26258 , H04N21/6125 , H04N21/64322 , H04N21/845 , H04N21/8455 , H04N21/8456 , H04N21/85406
摘要： A method of operating an IP client device for presentation of video content to a viewer includes the step of transmitting a trickplay request to a server. The client device receives from the server a manifest that references at least first and second consecutive video content fragments. The first fragment contains a sequence of N1 frames and the second fragment contains a sequence of N2 frames, and defines a set of M1 frames of the first fragment, where M1 is less than N1, and a set of M2 frames of the second fragment, where M2 is less than N2. The client device transmits a request for the M1 frames and the M2 frames and receives the M1 frames and the M2 frames. The client device presents the M1 frames and the M2 frames consecutively at the uniform, predetermined frame rate. The sequence of the M1 frames and the M2 frames has a presentation duration of (M1+M2)/F.
摘要翻译：操作IP客户端设备以向观众呈现视频内容的方法包括向服务器发送特技播放请求的步骤。客户端设备从服务器接收至少引用第一和第二连续视频内容片段的清单。第一片段包含N1帧的序列，第二片段包含N2帧的序列，并且定义第一片段的M1帧集合，其中M1小于N1，以及第二片段的一组M2帧，其中M2小于N2。客户端设备发送对M1帧和M2帧的请求，并接收M1帧和M2帧。客户端设备以均匀的预定帧速率连续呈现M1帧和M2帧。 M1帧和M2帧的序列具有（M1 + M2）/ F的呈现持续时间。

8. 发明申请

US20140270161A1 METHOD AND APPARATUS FOR SECURE STORAGE AND RETRIEVAL OF LIVE OFF DISK MEDIA PROGRAMS 有权
标题翻译：用于安全存储和检索实时关闭磁盘介质程序的方法和装置
公开(公告)号：US20140270161A1
公开(公告)日：2014-09-18
申请号：US14213202
申请日：2014-03-14
申请人： General Instrument Corporation
发明人： Rafie Shamsaasef , William P. Franks , Geetha Mangalore , Paul Moroney
IPC分类号： H04N21/4405 , H04N21/4627
CPC分类号： H04N21/4405 , H04N21/4147 , H04N21/4408 , H04N21/4627 , H04N21/8456
摘要： A method and system are provided for securely storing and retrieving live off-disk media programs. Events delineate media segments, each of which are encrypted with a different key so as to be streamable to a remote device via digital living network alliance (DLNA) or HTTP live streaming protocols. Media segments and identifiers for managing the storage and retrieval of such media segments are compatible with live streaming data structures, obviating the need to re-encrypt data streams.
摘要翻译：提供了一种用于安全地存储和检索实时磁盘外媒体程序的方法和系统。活动描绘媒体片段，每个节目都使用不同的密钥进行加密，以便通过数字生活网络联盟（DLNA）或HTTP直播流协议流式传输到远程设备。用于管理这种媒体段的存储和检索的媒体段和标识符与实况流数据结构兼容，从而避免了对数据流的重新加密的需要。

9. 发明授权

US09681197B2 Methods of implementing multi mode trickplay 有权
公开(公告)号：US09681197B2
公开(公告)日：2017-06-13
申请号：US14338590
申请日：2014-07-23
申请人： General Instrument Corporation
发明人： Krishna Prasad Panje , William P. Franks , Murali Sahasranaman
IPC分类号： H04N7/173 , H04N21/6587 , H04N21/845 , H04N21/2387 , H04N21/262 , H04N21/61 , H04N21/643 , H04N21/854
CPC分类号： H04N21/6587 , H04N21/2387 , H04N21/26258 , H04N21/6125 , H04N21/64322 , H04N21/845 , H04N21/8455 , H04N21/8456 , H04N21/85406
摘要： 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.

10. 发明授权

US09497514B2 DTCP converter for HLS 有权
标题翻译：用于HLS的DTCP转换器
公开(公告)号：US09497514B2
公开(公告)日：2016-11-15
申请号：US14312536
申请日：2014-06-23
申请人： General Instrument Corporation
发明人： Paul Moroney , Geetha Mangalore , William P. Franks
IPC分类号： H04N21/647 , H04N7/167 , H04N7/173 , H04N21/235 , H04N21/2381 , H04N21/266 , H04N21/418 , H04N21/433 , H04N21/435 , H04N21/472 , H04N21/6587 , H04L9/08 , H04L29/06 , H04N21/41 , H04N21/4402 , H04N21/4408 , H04N21/61 , H04N21/2343 , H04N21/4363 , H04N21/643 , H04N21/8355 , H04N21/845 , H04N21/262 , H04N21/482
CPC分类号： H04N21/64715 , H04L9/0861 , H04L63/00 , H04L63/061 , H04L63/123 , H04L65/1026 , H04L65/608 , H04L65/80 , H04L69/16 , H04L2209/20 , H04L2209/60 , H04N7/1675 , H04N7/17318 , H04N21/23439 , H04N21/2351 , H04N21/2381 , H04N21/26258 , H04N21/26613 , H04N21/4126 , H04N21/4181 , H04N21/433 , H04N21/435 , H04N21/4363 , H04N21/440218 , H04N21/4408 , H04N21/47217 , H04N21/4825 , H04N21/6118 , H04N21/6131 , H04N21/64322 , H04N21/6587 , H04N21/8355 , H04N21/8456
摘要： A method for DTCP to HLS conversion is provided that starts with a standard DTCP Protected Content Packet (PCP) structure. The PCP payload data is chunked at defined chunk boundaries. Each chunk is then appended with a pad to be compatible with HLS. An HLS playlist is then provided using the PCP header with identification of the chunks and a keytag. The chunk is encrypted with a DTCP key calculated by the DTCP standard using: (a) copy control bits; (b) a nonce, and (c) an exchange key ID. Relevant PCP header fields are provided in the keytag for the HLS playlist, including the value of the copy control bits, the nonce and the exchange key ID, supporting the transaction that enables calculation of the DTCP content key to enable later decryption of the chunks.
摘要翻译：提供了一种用于DTCP到HLS转换的方法，其以标准的DTCP保护内容分组（PCP）结构开始。 PCP有效载荷数据在定义的块边界处分块。然后每个块都附加一个与HLS兼容的焊盘。然后使用具有块的标识和密钥标签的PCP头提供HLS播放列表。使用以下方式由DTCP标准计算的DTCP密钥对该块进行加密：（a）复制控制位; （b）随机数，和（c）交换密钥ID。在用于HLS播放列表的密钥标签中提供相关的PCP头字段，包括复制控制比特的值，随机数和交换密钥ID，支持可以计算DTCP内容密钥的事务，以便稍后解密该块。

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