发明授权
- 专利标题: LDPC decoder with fractional unsatisfied check quality metric
- 专利标题(中): 具有分数不满足检验质量度量的LDPC解码器
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申请号: US13602463申请日: 2012-09-04
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公开(公告)号: US08930788B2公开(公告)日: 2015-01-06
- 发明人: Fan Zhang , Ming Jin , Wu Chang , Haitao Xia
- 申请人: Fan Zhang , Ming Jin , Wu Chang , Haitao Xia
- 申请人地址: US CA Milpitas
- 专利权人: LSI Corporation
- 当前专利权人: LSI Corporation
- 当前专利权人地址: US CA Milpitas
- 代理机构: Hamilton DeSanctis & Cha
- 主分类号: H03M13/00
- IPC分类号: H03M13/00
摘要:
An apparatus includes a low density parity check decoder operable to iteratively generate messages between a plurality of check nodes and variable nodes, and to calculate a fractional quality metric for a data block as it is decoded in the low density parity check decoder based at least in part on perceived values of data in the variable nodes. The fractional unsatisfied check quality metric is a probabilistic determination of a number of unsatisfied parity checks in the low density parity check decoder.