Photographic film still camera system with audio recording
US5276472A · kind A · utility
169Cited by
10References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 19, 1991 |
| Grant date | Jan 4, 1994 |
| Priority date | — |
| Expiry date | Nov 19, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B2217/246
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Audio to be recorded in a photographic film camera in association with individual exposed frames is first digitized and stored in a temporary storage memory in the camera allowing playback through a speaker mounted in the camera to permit playback review and editing, as needed. When the film is advanced in the camera to the next exposure frame, the digital audio signal is recorded on a magnetic layer formed on the film. At the photofinisher, the digital audio signal is read and converted to suitable encodement format, such as bar code or binary coded blister marks which are impressed on the photoprint for subsequent playback.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.