Camera having computer
US5053804A · kind A · utility
13Cited by
2References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 24, 1990 |
| Grant date | Oct 1, 1991 |
| Priority date | — |
| Expiry date | Jul 24, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B7/26
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A camera of the kind operating under the control of a computer is arranged to shift an operating state of the computer from a normal mode to a hold mode for saving electric energy by detecting a drop in the voltage level of power supply during a load driving process or when an operation member is operated; and to prevent a faulty operation by varying, according to the kind of a load to be driven, a voltage-level-drop detecting level which is set for shifting the computer to the hold mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.