发明申请
- 专利标题: Method and apparatus for layered rateless coding
- 专利标题(中): 分层无编码编码方法和装置
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申请号: US11605812申请日: 2006-11-27
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公开(公告)号: US20070133691A1公开(公告)日: 2007-06-14
- 发明人: Ulas Kozat
- 申请人: Ulas Kozat
- 专利权人: DoCoMo Communications Laboratories USA, Inc.
- 当前专利权人: DoCoMo Communications Laboratories USA, Inc.
- 主分类号: H04N11/04
- IPC分类号: H04N11/04
摘要:
A method and apparatus for layered rateless coding are described. In one embodiment, the method comprises dividing content into a plurality of content layers based on priority; expanding each layer into an encoded layer using an erasure code at a coding rate to produce a plurality of encoding layers, wherein the coding rate for each layer is set based on the priority and reduces as the priority of the content layers increases; concatenating a plurality of encoding layers produced by passing the plurality of layers through fixed rate precoders; and performing rateless encoding on the concatenated plurality of encoding layers to produce rateless encoding blocks.
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