Data recording method and apparatus for reducing fluctuation in DC component
US6876607B2 · kind B2 · utility
1Cited by
3References
12Claims
0Family size
Assignee
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Key dates
| Filing date | Jan 18, 2001 |
| Grant date | Apr 5, 2005 |
| Priority date | — |
| Expiry date | Jan 10, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2020/1457
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A data recording method for calculating a digital sum value (DSV) corresponding to a proportion of positive data and negative data included in predetermined data ranges, selecting a resync pattern to be inserted between the data ranges according to the DSV, and inserting the selected resync pattern between the data ranges, has a step of selecting a resync pattern that minimizes differences in DSV between the data ranges.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.