System for scanning of motion picture films to derive television signals
US4399465A · kind A · utility
3Cited by
3References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 15, 1981 |
| Grant date | Aug 16, 1983 |
| Priority date | — |
| Expiry date | Oct 15, 2001 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N3/38
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
To prevent cutting lines and overlap of frames upon reproduction of standard motion-picture film, in which the motion-picture film is scanned and the scanned signals are recorded in a store (16), the store is divided into storage blocks, each capable of storing 36 lines, addressing of the respective storage blocks such that two times seven or two times five storage blocks are utilized for storing of the frames, the sequence of the blocks with respect to the scanned lines changing from film frame to film frame, with the sequence repeating every four frames.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.