Power supply device for camera
US5043754A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 22, 1990 |
| Grant date | Aug 27, 1991 |
| Priority date | — |
| Expiry date | Aug 22, 2010 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01R13/2421
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A power supply device in a camera system having an accessory arranged to be mountable and dismountable on and from a camera body which includes a power source. The camera body includes an electronic circuit arranged to communicate with the accessory by a first connection terminal arranged to permit a first power supply to the accessory, a second connection terminal arranged to permit a second power supply to the accessory, a third connection terminal arranged to permit communication with the accessory, and a detector for detecting mounting of the accessory on the camera body. The accessory includes a motor drive for the camera; an electronic circuit arranged to communicate with the camera body; a first connection terminal arranged to be connected to the first connection terminal on the camera body side to connect said first power supply to the electronic circuit of the accessory; and a second connection terminal arranged to be connected to the second connection terminal of the camera body to connect the second power supply to the motor. The first and second connection terminals are set in positions which correspond to the positions of the first and second connection terminals of th…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.