Method and apparatus for offset and gain correction
US9001631B2 · kind B2 · utility
1Cited by
2References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 13, 2014 |
| Grant date | Apr 7, 2015 |
| Priority date | — |
| Expiry date | Jan 13, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2220/2537
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Aspects of the disclosure provide a signal processing circuit that has fast response time to sudden profile changes in an electrical signal. The signal processing circuit includes a processing path configured to process an electrical signal that is generated in response to reading data on a storage medium, and a feed-forward correction module. The feed-forward correction module is configured to detect a profile variation based the electrical signal in a time window, and correct the electrical signal in the time window based on the detected profile variation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.