Method and apparatus for testing VCR servos
US5266893A · kind A · utility
0Cited by
1References
4Claims
0Family size
Inventors
Key dates
| Filing date | Apr 16, 1991 |
| Grant date | Nov 30, 1993 |
| Priority date | — |
| Expiry date | Apr 16, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R31/343
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The capstan and drum servo systems of a VCR are tested by processing the capstan reference signal and the drum reference signal in a microprocessor and displaying information which is useful in diagnosing any defects in either of the servo systems.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.