Method and apparatus for layered rateless coding

专利名称：Method and apparatus for layered rateless

coding

发明人：Ulas C. Kozat申请号：US11605812申请日：20061127

公开号：US20070133691A1公开日：20070614

专利附图：

摘要：A method and apparatus for layered rateless coding are described. In oneembodiment, the method comprises dividing content into a plurality of content layersbased 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 eachlayer is set based on the priority and reduces as the priority of the content layersincreases; concatenating a plurality of encoding layers produced by passing the pluralityof layers through fixed rate precoders; and performing rateless encoding on theconcatenated plurality of encoding layers to produce rateless encoding blocks.

申请人：Ulas C. Kozat

地址：Mountain View CA US

国籍：US

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