发明公开
- 专利标题: MULTI-DIMENSIONAL CODING ON QUASI-CLOSE-PACKET LATTICES
- 专利标题(中): 多维CODING准密封装在一起的网格
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申请号: EP02775078.5申请日: 2002-10-14
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公开(公告)号: EP1440513A1公开(公告)日: 2004-07-28
- 发明人: COENE, Willem, M., J., M.
- 申请人: Koninklijke Philips Electronics N.V.
- 申请人地址: Groenewoudseweg 1 5621 BA Eindhoven NL
- 专利权人: Koninklijke Philips Electronics N.V.
- 当前专利权人: Koninklijke Philips Electronics N.V.
- 当前专利权人地址: Groenewoudseweg 1 5621 BA Eindhoven NL
- 优先权: EP01203878 20011015
- 国际公布: WO2003034595 20030424
- 主分类号: H03M5/14
- IPC分类号: H03M5/14 ; G11B20/14
摘要:
The present invention relates to a method and system for multi-dimensionally coding and/or decoding an information to/from a lattice structure representing bit positions of said coded information in at least two dimensions. Encoding and/or decoding is performed by using a close-packed lattice structure, preferably a quasi-hexagonal lattice structure. In particular, at least partial quasi-hexagonal clusters consisting of one central bit and a plurality of nearest neighboring bits can be defined, and a code constraint can be applied such that for each of said at least partial quasi-hexagonal clusters a predetermined minimum number of said nearest neighboring bits are of the same bit state as said central bit. Thereby, intersymbol interferences can be minimized at a high code efficiency. Furthermore, another code constraint can be applied such that for each of said at least partial quasi-hexagonal clusters a predetermined minimum number of said nearest neighboring bits are of the opposite bit state as said central bit. This constraint provides an advantageous high pass characteristic to avoid large areas of channel bits of the same type.
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