Photographic camera having magnetic recording synchronous with piezoelectric drive
US5974274A · kind A · utility
1Cited by
4References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 13, 1998 |
| Grant date | Oct 26, 1999 |
| Priority date | — |
| Expiry date | Aug 13, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B17/24
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A photographic camera uses photographic film of the type having a magnetic recording layer. The camera includes a piezoelectric film drive for advancing the film in the camera in periodic steps; and a magnetic recording subsystem for writing information on the magnetic recording layer of the film during film advance, the magnetic recording subsystem being synchronized with the periodic steps of the piezoelectric film drive.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.