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1. 发明申请

WO2012122117A2 CONTENT PLAYBACK APIS USING ENCRYPTED STREAMS 审中-公开
标题翻译：内容播放使用加密流程的APIS
公开(公告)号：WO2012122117A2
公开(公告)日：2012-09-13
申请号：PCT/US2012/027760
申请日：2012-03-05
申请人： NETFLIX, INC. , ZOLLINGER, James Mitch , LAI, Yung-Hsiao , PARK, Anthony Neal , RONCA, David Randall , KELLY, Scott Gregory
发明人： ZOLLINGER, James Mitch , LAI, Yung-Hsiao , PARK, Anthony Neal , RONCA, David Randall , KELLY, Scott Gregory
IPC分类号： G06F12/14
CPC分类号： G06F21/10
摘要： One embodiment of the present invention sets forth a technique for decrypting digital content in a secure environment. The technique includes the steps of receiving a digital rights management (DRM) license associated with a first frame of encrypted data from a DRM server, where the DRM license includes a decryption key for decrypting the first frame of encrypted data, transmitting the DRM license to a secure content playback pipeline for storage, and transmitting the first frame of encrypted data to the secure content playback pipeline for decryption, where, in response to receiving the first frame of encrypted data, a trusted processing entity within the secure content playback pipeline decrypts the first frame of encrypted data based on the decryption key included in the DRM license to generate a first set of decrypted data and store the first set of decrypted data in a secure memory space.
摘要翻译：本发明的一个实施例提出了一种在安全环境中解密数字内容的技术。该技术包括以下步骤：从DRM服务器接收与加密数据的第一帧相关联的数字权限管理（DRM）许可证，其中DRM许可证包括用于解密加密数据的第一帧的解密密钥，将DRM许可证发送到用于存储的安全内容回放流水线，以及将加密数据的第一帧发送到用于解密的安全内容回放流水线，其中响应于接收到加密数据的第一帧，安全内容回放流水线内的可信处理实体解密基于包括在DRM许可证中的解密密钥的加密数据的第一帧，以生成第一组解密数据，并将第一组解密数据存储在安全存储器空间中。

2. 发明申请

WO2012122117A3 CONTENT PLAYBACK APIS USING ENCRYPTED STREAMS 审中-公开
标题翻译：内容播放使用加密流程的APIS
公开(公告)号：WO2012122117A3
公开(公告)日：2014-04-24
申请号：PCT/US2012027760
申请日：2012-03-05
申请人： NETFLIX INC , ZOLLINGER JAMES MITCH , LAI YUNG-HSIAO , PARK ANTHONY NEAL , RONCA DAVID RANDALL , KELLY SCOTT GREGORY
发明人： ZOLLINGER JAMES MITCH , LAI YUNG-HSIAO , PARK ANTHONY NEAL , RONCA DAVID RANDALL , KELLY SCOTT GREGORY
IPC分类号： G06F21/00
CPC分类号： G06F21/10
摘要： One embodiment of the present invention sets forth a technique for decrypting digital content in a secure environment. The technique includes the steps of receiving a digital rights management (DRM) license associated with a first frame of encrypted data from a DRM server, where the DRM license includes a decryption key for decrypting the first frame of encrypted data, transmitting the DRM license to a secure content playback pipeline for storage, and transmitting the first frame of encrypted data to the secure content playback pipeline for decryption, where, in response to receiving the first frame of encrypted data, a trusted processing entity within the secure content playback pipeline decrypts the first frame of encrypted data based on the decryption key included in the DRM license to generate a first set of decrypted data and store the first set of decrypted data in a secure memory space.
摘要翻译：本发明的一个实施例提出了一种在安全环境中解密数字内容的技术。该技术包括以下步骤：从DRM服务器接收与加密数据的第一帧相关联的数字权限管理（DRM）许可证，其中DRM许可证包括用于解密加密数据的第一帧的解密密钥，将DRM许可证发送到用于存储的安全内容回放流水线，以及将加密数据的第一帧发送到用于解密的安全内容回放流水线，其中响应于接收到加密数据的第一帧，安全内容回放流水线内的可信处理实体解密基于包括在DRM许可证中的解密密钥的加密数据的第一帧，以生成第一组解密数据，并将第一组解密数据存储在安全存储器空间中。

3. 发明申请

WO2010075318A1 ON-DEVICE MULTIPLEXING OF STREAMING MEDIA CONTENT 审中-公开
标题翻译：流媒体内容的设备多路复用
公开(公告)号：WO2010075318A1
公开(公告)日：2010-07-01
申请号：PCT/US2009/069071
申请日：2009-12-21
申请人： NETFLIX, INC. , RONCA, David Randall , WU, Chung-Ping , LAI, Yung-Hsiao
发明人： RONCA, David Randall , WU, Chung-Ping , LAI, Yung-Hsiao
IPC分类号： G06F15/16
CPC分类号： H04L65/60 , H04L65/607 , H04N19/115 , H04N19/164 , H04N19/167 , H04N19/177 , H04N19/46 , H04N19/61 , H04N21/23424 , H04N21/23439 , H04N21/23611 , H04N21/2368 , H04N21/26258 , H04N21/2662 , H04N21/4325 , H04N21/4346 , H04N21/44016 , H04N21/44029 , H04N21/4621
摘要： Techniques are disclosed for multiplexing a dynamic bit-rate video stream with an audio stream received by a client device in a manner that allows the resulting multiplexed stream to be played back without disruption, despite dynamic changes in the bit rate of the video stream that may occur. A content server may stream both a video stream and an audio stream to a client device for playback. The client device may multiplex the video and audio streams prior to them being presented to a playback engine for decoding and playback to a user.
摘要翻译：公开了用于将动态比特率视频流与由客户端设备接收的音频流多路复用的技术，尽管动态改变视频流的比特率，尽管动态改变视频流的比特率发生。内容服务器可以将视频流和音频流两者流传输到客户端设备进行播放。客户端设备可以在将视频和音频流呈现给播放引擎之前复用视频和音频流，以便对用户进行解码和回放。

4. 发明申请

WO2010075316A1 BIT RATE STREAM SWITCHING 审中-公开
标题翻译：位速率切换
公开(公告)号：WO2010075316A1
公开(公告)日：2010-07-01
申请号：PCT/US2009/069068
申请日：2009-12-21
申请人： NETFLIX, INC. , WU, Chung-Ping , KAISER, Christian , LAI, Yung-Hsiao , ZOLLINGER, James Mitch , RONCA, David Randall
发明人： WU, Chung-Ping , KAISER, Christian , LAI, Yung-Hsiao , ZOLLINGER, James Mitch , RONCA, David Randall
IPC分类号： G06F15/16
CPC分类号： H04L65/60 , H04L65/607 , H04N19/115 , H04N19/164 , H04N19/167 , H04N19/177 , H04N19/46 , H04N19/61 , H04N21/23424 , H04N21/23439 , H04N21/23611 , H04N21/2368 , H04N21/26258 , H04N21/2662 , H04N21/4325 , H04N21/4346 , H04N21/44016 , H04N21/44029 , H04N21/4621
摘要： Embodiments for changing bit rates in streaming media are provided. As portions of a streaming media file are downloaded for playback, the size of the portion is compared with an expected size determined prior to initiating playback of streaming AV data. The portion of the media file may be padded such that the size of the portion matches the size specified prior to initiating playback of streaming AV data.
摘要翻译：提供了用于改变流媒体中比特率的实施例。由于流媒体文件的一部分被下载以便重放，所以将该部分的大小与在启动流式AV数据的回放之前确定的预期大小进行比较。媒体文件的部分可以被填充，使得该部分的大小与在开始重放流式AV数据之前指定的大小匹配。

5. 发明申请

WO2004095201A3 SYSTEMS AND METHODS FOR CACHING MULTIMEDIA DATA 审中-公开
公开(公告)号：WO2004095201A3
公开(公告)日：2004-11-04
申请号：PCT/US2004/002183
申请日：2004-01-27
申请人： INTERVIDEO INC. , LAI, Yung-Hsiao , HUNG, Andy, Chao
发明人： LAI, Yung-Hsiao , HUNG, Andy, Chao
IPC分类号： G11B7/004
摘要： Systems and methods are provided for caching media data to thereby enhance media data read and/or write functionality and performance. A multimedia apparatus, comprises a cache buffer configured to be coupled to a storage device, wherein the cache buffer stores multimedia data, including video and audio data, read from the storage device. A cache manager coupled to the cache buffer, wherein the cache buffer is configured to cause the storage device to enter into a reduced power consumption mode when the amount of data stored in the cache buffer reaches a first level.

6. 发明申请

WO2011022432A1 ENCODING VIDEO STREAMS FOR ADAPTIVE VIDEO STREAMING 审中-公开
标题翻译：编辑视频流自适应视频流
公开(公告)号：WO2011022432A1
公开(公告)日：2011-02-24
申请号：PCT/US2010/045805
申请日：2010-08-17
申请人： NETFLIX, INC. , PARK, Anthony Neal , LAI, Yung-Hsiao , RONCA, David Randall
发明人： PARK, Anthony Neal , LAI, Yung-Hsiao , RONCA, David Randall
IPC分类号： H04J1/16
CPC分类号： H04N21/23439 , H04N21/23611 , H04N21/2362 , H04N21/238 , H04N21/2389 , H04N21/23895
摘要： One embodiment of the invention sets forth an encoding server including components configured to encode a video stream associated with a content title for adaptive streaming. The video stream is first processed by a VC1 encoder to generate an encoded video stream comprising a multiple GOPs, each GOP including a key frame and having a different playback offset. The encoded video stream is then packaged such that the GOPs are stored in data packets of the packaged encoded stream. An SHI generator generates an SHI associated with the packaged encoded stream that includes a switch point associated with each GOP. Each switch point includes the playback offset associated with the corresponding GOP and the data packet storing the key frame of the corresponding GOP. The SHI associated with multiple packaged encoded video streams associated with the same content title and encoded to different playback bit rates have corresponding switch points.
摘要翻译：本发明的一个实施例提出了一种编码服务器，其包括被配置为编码与用于自适应流传输的内容标题相关联的视频流的组件。视频流首先由VC1编码器处理，以产生包括多个GOP的编码视频流，每个GOP包括关键帧并且具有不同的重放偏移。然后将编码的视频流打包，使得GOP被存储在打包编码的流的数据分组中。 SHI生成器生成与打包编码流相关联的SHI，其包括与每个GOP相关联的切换点。每个切换点包括与相应GOP相关联的重放偏移和存储对应GOP的关键帧的数据分组。与与相同内容标题相关联并被编码为不同播放比特率的多个打包编码视频流相关联的SHI具有对应的切换点。

7. 发明申请

WO2004095201A2 SYSTEMS AND METHODS FOR CACHING MULTIMEDIA DATA 审中-公开
标题翻译：用于缓存多媒体数据的系统和方法
公开(公告)号：WO2004095201A2
公开(公告)日：2004-11-04
申请号：PCT/US2004002183
申请日：2004-01-27
申请人： INTERVIDEO INC , LAI YUNG-HSIAO , HUNG ANDY CHAO
发明人： LAI YUNG-HSIAO , HUNG ANDY CHAO
IPC分类号： G06F20060101 , G06F3/06 , G06F12/08 , G11B7/004 , G06F
CPC分类号： G06F12/0802 , G06F3/0625 , G06F3/0656 , G06F3/0674 , G06F3/0679 , G06F12/0862 , G06F12/0866 , G06F2212/1028 , G06F2212/464 , Y02D10/13 , Y02D10/154
摘要： Systems and methods are provided for caching media data to thereby enhance media data read and/or write functionality and performance. A multimedia apparatus, comprises a cache buffer configured to be coupled to a storage device, wherein the cache buffer stores multimedia data, including video and audio data, read from the storage device. A cache manager coupled to the cache buffer, wherein the cache buffer is configured to cause the storage device to enter into a reduced power consumption mode when the amount of data stored in the cache buffer reaches a first level.
摘要翻译：提供了用于缓存媒体数据从而增强媒体数据读取和/或写入功能和性能的系统和方法。一种多媒体设备，包括被配置为耦合到存储设备的高速缓冲存储器缓冲器，其中高速缓存缓冲器存储从存储设备读取的包括视频和音频数据的多媒体数据。耦合到所述高速缓冲存储器缓冲器的高速缓存管理器，其中所述高速缓冲存储器被配置为当存储在所述高速缓存缓冲器中的数据量达到第一级时，使所述存储设备进入降低功耗模式。

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