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    Fast-expiring licenses used to speculatively authorize access to streaming media content
    2.
    发明授权
    Fast-expiring licenses used to speculatively authorize access to streaming media content 有权

    公开(公告)号：US11593459B2

    公开(公告)日：2023-02-28

    申请号：US16167176

    申请日：2018-10-22

    申请人： NETFLIX, INC.

    发明人： Mark Watson ,  Anthony Neal Park ,  Mitch Zollinger

    IPC分类号： H04N21/6334 ,  H04N21/8355 ,  H04N21/84 ,  G06F21/10 ,  H04N21/4405 ,  H04N21/466 ,  H04N21/482

    摘要： Techniques are disclosed for improving user experience of multimedia streaming over computer networks. More specifically, techniques presented herein reduce (or eliminate) latency in playback start time for streaming digital media content resulting from digital rights management (DRM) authorizations. A streaming media client (e.g., a browser, set-top box, mobile telephone or tablet “app”) may request a “fast-expiring” license for titles the streaming media client predicts a user is likely to begin streaming. A fast-expiring license is a DRM license (and associated decryption key) which is valid for only a very limited time after being used for playback. During the validity period of such a license, the client device requests a “normal” or “regular” license to continue accessing the title after the fast-expiring license expires.

    Speculative pre-authorization of encrypted data streams
    3.
    发明授权
    Speculative pre-authorization of encrypted data streams 有权

    公开(公告)号：US11349699B2

    公开(公告)日：2022-05-31

    申请号：US13838059

    申请日：2013-03-15

    申请人： NETFLIX, Inc

    发明人： Mark Watson ,  Anthony Neal Park ,  Wei Wei

    IPC分类号： H04L29/06 ,  G06F21/10 ,  H04L65/60

    摘要： Techniques are disclosed for improving user experience of multimedia streaming over computer networks. For example, a method for presenting multimedia content may generally include receiving a request to stream a media title. In response to the request, unencrypted content for the media title is streamed to a client. While streaming the unencrypted content, a digital rights management (DRM) license to access encrypted content for the media title is requested. After receiving the DRM license, the client switches from streaming the unencrypted content for the media title to streaming encrypted content for the media title. The switching from streaming the unencrypted content to streaming the encrypted content does not interrupt playback of the media title.

    FAST-EXPIRING LICENSES USED TO SPECULATIVELY AUTHORIZE ACCESS TO STREAMING MEDIA CONTENT
    4.
    发明申请
    FAST-EXPIRING LICENSES USED TO SPECULATIVELY AUTHORIZE ACCESS TO STREAMING MEDIA CONTENT 审中-公开

    公开(公告)号：US20190057195A1

    公开(公告)日：2019-02-21

    申请号：US16167176

    申请日：2018-10-22

    申请人： NETFLIX, INC.

    发明人： Mark Watson ,  Anthony Neal Park ,  Mitch Zollinger

    IPC分类号： G06F21/10 ,  H04N21/8355 ,  H04N21/482 ,  H04N21/466 ,  H04N21/4405 ,  H04N21/84 ,  H04N21/6334

    摘要： Techniques are disclosed for improving user experience of multimedia streaming over computer networks. More specifically, techniques presented herein reduce (or eliminate) latency in playback start time for streaming digital media content resulting from digital rights management (DRM) authorizations. A streaming media client (e.g., a browser, set-top box, mobile telephone or tablet “app”) may request a “fast-expiring” license for titles the streaming media client predicts a user is likely to begin streaming. A fast-expiring license is a DRM license (and associated decryption key) which is valid for only a very limited time after being used for playback. During the validity period of such a license, the client device requests a “normal” or “regular” license to continue accessing the title after the fast-expiring license expires.

    Adaptive streaming for digital content distribution
    6.
    发明授权
    Adaptive streaming for digital content distribution 有权

    公开(公告)号：US09648385B2

    公开(公告)日：2017-05-09

    申请号：US14152705

    申请日：2014-01-10

    申请人： NETFLIX, INC.

    发明人： Anthony Neal Park ,  Wei Wei

    IPC分类号： H04N7/173 ,  H04N21/44 ,  H04N21/442 ,  H04N21/6373 ,  H04N21/61

    CPC分类号： H04N21/44004 ,  H04N21/44209 ,  H04N21/6175 ,  H04N21/6373

    摘要： One embodiment of the present invention sets forth a technique for adapting playback bit rate to available delivery bandwidth in a content delivery system comprising a content server and a content player. A content player periodically estimates whether a given playback bit rate can feasibly provide complete playback for a given title assuming currently available bandwidth. If playback becomes unfeasible at a current bit rate assuming currently available bandwidth, then the content player adapts the bit rate downward until a feasible bit rate is achieved. If playback is feasible using a higher bit rate, then the content player may adapt the bit rate upward.