Missing pulse detector using synchronous detection
US6393596B1 · kind B1 · utility
13Cited by
5References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 30, 1998 |
| Grant date | May 21, 2002 |
| Priority date | — |
| Expiry date | Oct 30, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B27/3027
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A data decoder for decoding digital data in a high frequency signal in an optical storage device. A carrier signal derived from the high frequency passed through a zonal bandpass filter and a limiter is multiplied by the high frequency signal passed through a high pass filter. The resulting product is filtered and passed through a comparator forming a digital data stream.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.