Circuit for detecting signal loss, or drop-out, in a digital signal processing system with A/D conversion
US4864426A · kind A · utility
2Cited by
1References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 18, 1988 |
| Grant date | Sep 5, 1989 |
| Priority date | — |
| Expiry date | Mar 18, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B20/025
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A drop-out detector circuit for use in a device such as a video disc player or the like is provided using a minimum of added components. The input analog signal read from the disc is compared with the upper and lower (maximum and minimum) reference levels provided for the A/D converter otherwise provided for converting the input analog signal to digital form. When either limit is exceeded, a drop-out signal is generated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.