Segmented video playback apparatus with ancillary recording medium
US4193098A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 24, 1977 |
| Grant date | Mar 11, 1980 |
| Priority date | — |
| Expiry date | Mar 24, 1997 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N5/937
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A system for playback of segmented video information on a tape employs an ancillary recording medium which is rotationally driven at a rotation rate of the primary segment scanning apparatus. Each segment of a video field is recorded in a respective track of the ancillary medium, the information of one field being recorded over the information of another field. By recording only signals of a predetermined quality on the ancillary recording medium, play back of video information from the ancillary medium will produce a coherent display on a display monitor, regardless of the rate at which the tape is run. This is possible because of the one-to-one correspondence between the rotary rates of the scanner and the ancillary medium. Each coherent display is comprised of information from one or a number of video fields.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.