Sigma-delta ramp loading calibration
US6735540B2 · kind B2 · utility
13Cited by
9References
20Claims
0Family size
Assignee
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Key dates
| Filing date | Sep 28, 2001 |
| Grant date | May 11, 2004 |
| Priority date | — |
| Expiry date | Feb 9, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/54
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A continuous automatic calibration system and apparatus using a delta-sigma modulation technique. A first time duration is set. The first time duration is a length of time in terms of clock counts for a calibration procedure. Then, a second time duration occurring during the first time duration is measured. The second time duration is a length of time in terms of clock counts that a counter is operational. A multiplying factor is determined by dividing the first time duration by the second time duration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.