Invention Grant
US08261155B2 Methods and apparatus for encoding and decoding low density parity check (LDPC) codes
失效
用于对低密度奇偶校验(LDPC)码进行编码和解码的方法和装置
- Patent Title: Methods and apparatus for encoding and decoding low density parity check (LDPC) codes
- Patent Title (中): 用于对低密度奇偶校验(LDPC)码进行编码和解码的方法和装置
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Application No.: US12044962Application Date: 2008-03-08
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Publication No.: US08261155B2Publication Date: 2012-09-04
- Inventor: Thomas Richardson , Naga Bhushan , Aamod Khandekar
- Applicant: Thomas Richardson , Naga Bhushan , Aamod Khandekar
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agent Sam Talpalatsky; Nicholas J. Pauley; Jonathan T. Velasco
- Main IPC: H03M13/00
- IPC: H03M13/00

Abstract:
A novel apparatus and method for encoding data using a low density parity check (LDPC) code capable of representation by a bipartite graph are provided. To encode the data, an accumulate chain of a plurality of low degree variable nodes may be generated. The accumulate chain may then be closed to form a loop twice, once using a low degree variable nodes and once using a higher degree variable which is higher than the low degree variable node, where the higher degree variable node comprises a non-loop-closing edge. In one embodiment, the plurality of low degree variable nodes may have the same permutation on each edge.
Public/Granted literature
- US20080222486A1 METHODS AND APPARATUS FOR ENCODING AND DECODING LOW DENSITY PARITY CHECK (LDPC) CODES Public/Granted day:2008-09-11
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