Digital sound recording on motion picture film
US5617158A · kind A · utility
3Cited by
11References
24Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Nov 30, 1994 |
| Grant date | Apr 1, 1997 |
| Priority date | — |
| Expiry date | Nov 30, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B20/1876
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A motion picture film capable of reproducing the sound field full of ambience in the reproducing system. The digital sound tracks 5L and 5R, on which digital audio data have been recorded, are recorded so that temporally same digital audio signals are recorded with a spatial shift by a preset distance along the film running direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.