Current signal controlled camera system
US4443082A · kind A · utility
6Cited by
3References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 22, 1982 |
| Grant date | Apr 17, 1984 |
| Priority date | — |
| Expiry date | Jul 22, 2002 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B7/26
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A camera system in which information is transmitted between a camera body and an accessory in the form of a current signal is provided. A voltage-to-current converter is provided in at least either one of the camera body and accessory and a current-to-voltage converter is provided in at least the other of the camera body and accessory. Thus, analog information can be transmitted between the camera body and the accessory with high accuracy even if they have separate voltage sources different in level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.