Magnetic-tape cartridge-loaded portable video camera using prerecorded timing signals to control the video time base
US3962725A · kind A · utility
13Cited by
4References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 29, 1974 |
| Grant date | Jun 8, 1976 |
| Priority date | — |
| Expiry date | Oct 29, 1994 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S358/906
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A wholly self-contained video camera is disclosed as being cartridge-loaded with magnetic tape for picture taking. Sweep rates for the camera sensor are slaved to the tape drive of the camera; and little or no speed regulation is associated with the camera tape drive. The tape employed in the camera has a pre-recorded signal which is detected for sweep rate control purposes. Playback of video information recorded by the camera is accomplished by running the tape during playback at the "pre-record" speed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.