Telecines with simultaneous scanning of a plurality of frames
US5557322A · kind A · utility
8Cited by
6References
21Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 15, 1994 |
| Grant date | Sep 17, 1996 |
| Priority date | — |
| Expiry date | Aug 15, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N3/36
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A continuous-motion flying-spot telecine has twin objective lenses (13,14) which provide beams to scan two adjacent film frames simultaneously. Two sets of light detectors (16,17) are provided, one for each frame being scanned. The detector outputs are applied to a multiple frame store (23; FIG. 2). The scans can take place at half the normal speed, while a conventional rate signal is read out of the store. Problems caused at high frequencies as a result of afterglow on the CRT (10) can thereby be substantially reduced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.