发明授权
- 专利标题: Apparatus and method for multiple description encoding
- 专利标题(中): 多种描述编码的装置和方法
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申请号: US11412568申请日: 2006-04-26
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公开(公告)号: US07561073B2公开(公告)日: 2009-07-14
- 发明人: Ann C. Irvine , Vijayalakshmi R. Raveendran
- 申请人: Ann C. Irvine , Vijayalakshmi R. Raveendran
- 申请人地址: US CA San Diego
- 专利权人: QUALCOMM Incorporated
- 当前专利权人: QUALCOMM Incorporated
- 当前专利权人地址: US CA San Diego
- 主分类号: H03M7/00
- IPC分类号: H03M7/00
摘要:
An apparatus and method for generating multiple descriptions of compressed data are comprised. Generally, a quantized bit stream is generated using a reference quantization step. The quantization bet stream is then re-quantized using a first quantization step to generate a first description of compressed data, wherein the first quantization step is determined based on a first required scaling of the reference quantization step. The quantized bit stream may also be re-quantized using a second quantization step to generate a second description of compressed data, wherein the second quantization step is determined on a second required scaling of the reference quantization step.
公开/授权文献
- US20060197691A1 Apparatus and method for multiple description encoding 公开/授权日:2006-09-07
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