1989-08-07
1990-10-30
Hix, L. T.
354212, 354484, G03B 118
Patent
active
049672169
ABSTRACT:
A camera body adapted to detachably mount a motor drive device thereon, includes a first motor, a second motor, a film feeding transmission system arranged to be driven by the first motor serving as a drive source, a charging transmission system arranged to be driven by the second motor serving as a drive source, a detection circuit for detecting the mounting of the motor drive device on the camera body, and a motor-voltage control circuit for increasing a voltage applied to the first motor when the detection circuit has detected the mounting of the motor drive device.
REFERENCES:
patent: 4091395 (1978-05-01), Kozuki et al.
patent: 4616913 (1986-10-01), Suzuki et al.
patent: 4673272 (1987-06-01), Suzuki et al.
patent: 4766452 (1988-08-01), Ohara et al.
patent: 4816851 (1989-03-01), Fukahori et al.
patent: 4829328 (1989-05-01), Tanaka et al.
Kiuchi Masayoshi
Nishio Tetsuya
Ohara Tsunemasa
Canon Kabushiki Kaisha
Gray David M.
Hix L. T,.
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