Time base correction for VTR with variable tape speed
US4668998A · kind A · utility
34Cited by
6References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 29, 1985 |
| Grant date | May 26, 1987 |
| Priority date | — |
| Expiry date | Jan 29, 2005 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B27/024
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In an apparatus in which a video signal can be reproduced from a magnetic tape that is transported with a different tape speed from that in recording, such as, in a slow or still reproducing mode, and the reproduced video signal and an input video signal can be alternatively supplied to an output terminal at every predetermined number of field intervals, there is provided a circuit for controlling a time axis of the input video signal so as to be substantially equal to the time axis of the reproduced video signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.