System for the recording and play-back of video signals
US4274118A · kind A · utility
8Cited by
3References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 13, 1979 |
| Grant date | Jun 16, 1981 |
| Priority date | — |
| Expiry date | Aug 13, 1999 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B15/61
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A system is provided for increasing the recording/play-back time for video tape devices. A tape is utilized on which signals are recorded in one direction for one half the tape width and in the opposite direction for the other half of the tape width. The tape drive mechanism automatically reverses at the end of feed in each direction and when the tape feed direction changes the relative vertical position of the tape head (or heads) with respect to the tape also changes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.