Excavating
Patent
1987-10-26
1989-07-04
Perkey, W. B.
Excavating
354413, 3541451, 371 61, 371 62, G03B 1505, G03B 1756, G06F 1100
Patent
active
048455229
ABSTRACT:
A data communication system in which data communication between a camera and an accessory such as a strobe is performed by transmitting items of data in sequence in synchronism with clock pulses. If the data communication is not performed normally, the system detects an error in this communication, and the operation of performing data communication using these items of data is recommenced.
REFERENCES:
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patent: 4392226 (1983-07-01), Cook
patent: 4589066 (1986-05-01), Lam et al.
patent: 4644497 (1987-02-01), Tajima et al.
patent: 4695148 (1987-09-01), Terui et al.
patent: 4705970 (1987-11-01), Turnpaugh
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