Modulation bit added to worst case codeword
US7397398B2 · kind B2 · utility
2Cited by
17References
24Claims
0Family size
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Key dates
| Filing date | May 9, 2006 |
| Grant date | Jul 8, 2008 |
| Priority date | — |
| Expiry date | May 9, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2220/2516
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A data word is error correction encoded to provide a worst case codeword without bit transitions between worst case codeword bits. A modulation bit is calculated as a function of the worst case codeword. The modulation bit has a bit polarity opposite a bit polarity of the worst case codeword bits. The worst case codeword bits are added with the modulation bit to form a modulated code word.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.