Conversion of high to low frame rate motion picture films
US4889423A · kind A · utility
10Cited by
2References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 26, 1986 |
| Grant date | Dec 26, 1989 |
| Priority date | — |
| Expiry date | Jun 26, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B21/32
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method is described for converting a strip of film designed for showing at 60 fps (frames per second) to a film that can be shown at 24 fps. Instead of forming the 24 fps film so it alternately contains every second and every third frame of the 60 fps film, each frame of the 24 fps film includes two distinct overlapping successive images of the 60 fps film.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.