发明申请
US20090222872A1 METHOD AND SYSTEM FOR PROVIDING DIFFERENT FORMATS OF ENCODED CONTENT IN A SWITCHED DIGITAL VIDEO (SDV) SYSTEM 有权
用于在开关数字视频(SDV)系统中提供编码内容的不同格式的方法和系统

  • 专利标题: METHOD AND SYSTEM FOR PROVIDING DIFFERENT FORMATS OF ENCODED CONTENT IN A SWITCHED DIGITAL VIDEO (SDV) SYSTEM
  • 专利标题(中): 用于在开关数字视频(SDV)系统中提供编码内容的不同格式的方法和系统
  • 申请号: US12039809
    申请日: 2008-02-29
  • 公开(公告)号: US20090222872A1
    公开(公告)日: 2009-09-03
  • 发明人: John Schlack
  • 申请人: John Schlack
  • 申请人地址: US PA Horsham
  • 专利权人: GENERAL INSTRUMENT CORPORATION
  • 当前专利权人: GENERAL INSTRUMENT CORPORATION
  • 当前专利权人地址: US PA Horsham
  • 主分类号: H04N7/173
  • IPC分类号: H04N7/173
METHOD AND SYSTEM FOR PROVIDING DIFFERENT FORMATS OF ENCODED CONTENT IN A SWITCHED DIGITAL VIDEO (SDV) SYSTEM
摘要:
A method, system and devices for delivering a switched digital video (SDV) channel to a network element, such as an end user set-top box, based on the decoding capabilities of the network element. The system determines whether to deliver the SDV channel in a first format, such as MPEG-4, or a second format, such as MPEG-2. When only network elements capable of decoding MPEG-4 content are tuned to the SDV channel, the system can realize bandwidth savings by delivering only the MPEG-4 version of the SDV channel. When legacy network elements capable of decoding only MPEG-2 content tune to a particular SDV channel, the system delivers only the MPEG-2 version of the SDV channel. The methods and devices can be used in headends, including those that deploy switched digital video, and other appropriate locations within the content distribution system, such as within the edge devices in the distribution hub.
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