Detector circuit for detecting drop-out in reproduced digital data
US4860121A · kind A · utility
2Cited by
3References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 18, 1988 |
| Grant date | Aug 22, 1989 |
| Priority date | — |
| Expiry date | Mar 18, 2008 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/885
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A drop-out detector circuit for use in a data reproducing device in which a reproduced high-frequency signal is digitized. The most significant bit of the digitized signal is sampled, and its logic state detected over a predetermined number of sampling periods. Both high- and low-frequency drop-outs can be detected from the detected logic state pattern of the most significant bit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.