Invention Grant
US08069393B2 Method and system for providing long and short block length low density parity check (LDPC) codes
有权
提供长和短块长度低密度奇偶校验（LDPC）码的方法和系统
- Patent Title: Method and system for providing long and short block length low density parity check (LDPC) codes
- Patent Title (中): 提供长和短块长度低密度奇偶校验（LDPC）码的方法和系统
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Application No.: US12355694Application Date: 2009-01-16
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Publication No.: US08069393B2Publication Date: 2011-11-29
- Inventor: Mustafa Eroz , Feng-Wen Sun , Lin-Nan Lee
- Applicant: Mustafa Eroz , Feng-Wen Sun , Lin-Nan Lee
- Applicant Address: US CA El Segundo
- Assignee: DTVG Licensing, Inc.
- Current Assignee: DTVG Licensing, Inc.
- Current Assignee Address: US CA El Segundo
- Main IPC: H03M13/00
- IPC: H03M13/00
Abstract:
An approach is provided for generating Low Density Parity Check (LDPC) codes. An LDPC encoder generates a LDPC code with an outer Bose Chaudhuri Hocquenghem (BCH) code. For 1/3 rate, the relevant parameters are as follows: q=120, nldpc=64,800, kldpc=nBCH=21600, kBCH=21408 (12 bit error correcting BCH). For 1/4 rate, the LDPC code has the following relevant parameters: q=135, nldpc=64,800, kldpc=nBCH=16200, kBCH=16008 (12 bit error correcting BCH). For 2/5 rate, the following parameters exist: q=108, nldpc=64800, kldpc=nBCH=25920, kBCH=25728 (12 bit error correcting BCH). The above approach has particular application in digital video broadcast services over satellite.
Public/Granted literature
- US20090158117A1 METHOD AND SYSTEM FOR PROVIDING LONG AND SHORT BLOCK LENGTH LOW DENSITY PARITY CHECK (LDPC) CODES Public/Granted day:2009-06-18
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