Title: Method of constructing check matrix for LDPC code, and encoding and decoding device of using the method
Application Number: 200610113914 Application Date: 2006.10.20
Publication Number: 1960190 Publication Date: 2007.05.09
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: H03M13/11;H03M13/19;H03M13/00
Applicant(s) Name: Taimeishiji Tech Co., Ltd., Beijing Address:
Inventor(s) Name: Bai Dong;Liu Binbin;Tao Tao;Ge Qihong;Song Huishi;
Attorney & Agent: huangwei zhangjin hai
Abstract:
    The coder codes the input binary info and outputs the coded position-change system code queue. The coder consists of the matrix multiply module (MM), the compositor index module (CI) and the compositor output module (CO). MM outputs verification queue p obtained via multiplying the binary info queue m with a matrix. CI possesses N storage units and stores orderly the index value of the compositor table IDX. According to the stored index value in IDX, CO compositors against m and p, then outputs code character c. This invention uses the algebra structure to build the verification matrix of LDPC code to obtain a stable LDPC code. Besides, the coder and decoder in this invention occupy less memory units. This benefits the device optimization.
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