- 专利标题: Multimedia distribution system
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申请号: US17307990申请日: 2021-05-04
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公开(公告)号: US11735227B2公开(公告)日: 2023-08-22
- 发明人: Abou Ul Aala Ahsan , Stephen R. Bramwell , Brian T. Fudge
- 申请人: DIVX, LLC
- 申请人地址: US CA San Diego
- 专利权人: DIVX, LLC
- 当前专利权人: DIVX, LLC
- 当前专利权人地址: US CA San Diego
- 代理机构: KPPB LLP
- 优先权: WO TUS2004041667 2004.12.08
- 主分类号: H04N7/173
- IPC分类号: H04N7/173 ; H04N19/107 ; H04N19/117 ; H04N19/126 ; H04N19/149 ; H04N19/152 ; H04N19/154 ; H04N19/159 ; H04N19/176 ; H04N19/18 ; H04N19/192 ; G11B27/30 ; H04N19/196 ; H04N19/61 ; H04N19/186 ; H04N19/48 ; H04N19/80 ; H04N19/577 ; G11B20/10 ; G11B27/32 ; H04N21/426 ; H04N21/81 ; H04N21/84 ; H04N21/845 ; H04N21/854 ; H04N21/8543 ; H04N21/858 ; H04N19/85 ; H04N19/625
摘要:
A multimedia file and methods of generating, distributing and using the multimedia file are described. Multimedia files in accordance with embodiments of the present invention can contain multiple video tracks, multiple audio tracks, multiple subtitle tracks, a complete index that can be used to locate each data chunk in each of these tracks and an abridged index that can enable the location of a subset of the data chunks in each track, data that can be used to generate a menu interface to access the contents of the file and ‘meta data’ concerning the contents of the file. Multimedia files in accordance with several embodiments of the present invention also include references to video tracks, audio tracks, subtitle tracks and ‘meta data’ external to the file. One embodiment of a multimedia file in accordance with the present invention includes a series of encoded video frames, a first index that includes information indicative of the location within the file and characteristics of each encoded video frame and a separate second index that includes information indicative of the location within the file of a subset of the encoded video frames.
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