发明授权
- 专利标题： Hierarchical trellis coded modulation
- 专利标题（中）： 分级网格编码调制
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申请号： US10970718申请日： 2004-10-22
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公开(公告)号： US07613985B2公开(公告)日： 2009-11-03
- 发明人: Julien Pons , Patrick Duvaut , Oliver Moreno , Laurent Pierrugues
- 申请人： Julien Pons , Patrick Duvaut , Oliver Moreno , Laurent Pierrugues
- 申请人地址： US CA Fremont
- 专利权人： Ikanos Communications, Inc.
- 当前专利权人： Ikanos Communications, Inc.
- 当前专利权人地址： US CA Fremont
- 代理机构： Thomas, Kayden, Horstemeyer & Risley, LLP
- 主分类号： H03M13/00
- IPC分类号： H03M13/00
摘要：
A system and method for encoding information is disclosed. In one embodiment, information is encoded using a high protection code for the least significant bit and a low protection code for the next three most significant bits. The remaining bits are uncoded. The high protection code may be a turbo code and the low protection code may be a trellis coded modulation code. In this embodiment, the collection of bits is then mapped according to a diagonally shifted QAM constellation technique.
公开/授权文献
- US20050111565A1 Hierarchical trellis coded modulation 公开/授权日：2005-05-26
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