Apparatus for modifying the time base of signals
US3932888A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 10, 1974 |
| Grant date | Jan 13, 1976 |
| Priority date | — |
| Expiry date | Jun 10, 1994 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N5/953
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Time base instability of signals in a train thereof is corrected by use of analog shift registers. As employed in the correction of time base instability of video signals, plural analog shift registers are used. Two clock rates are used, respectively, to clock video signals into and out of the analog shift registers. The clock-in rate is set so that samples of a video signal which has been stretched a predetermined amount may load all stages of an analog shift register within the duration of the stretched signal. The clock-out rate is set to unload all stages of an analog shift register within the nominal duration of a video signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.