发明申请
US20070133691A1 Method and apparatus for layered rateless coding 审中-公开
分层无编码编码方法和装置

Method and apparatus for layered rateless coding
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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