Analog-to-digital converter for cameras

Details Analog-to-digital converter for cameras Analog-to-digital converter for cameras

1981-08-03

1983-08-23

Miller, C. D.

Communications: electrical

Audible indication

Percussion-type sound producer

354 23D, H03K 1302

Patent

active

044006918

ABSTRACT:
An analog-to-digital converter for cameras generates a digital output signal representing the difference between a pair of analog input signals by converting a generated variable digital signal into a variable analog signal, combining a first analog input signal with the variable analog signal to provide a calculated analog signal and comparing the calculated analog signal with a second analog input signal to determine whether or not such signals have a predetermined relationship with respect to one another such that the variable digital signal is fixed when the aforementioned predetermined relationship is determined to exist.

REFERENCES:
patent: 2997704 (1961-08-01), Gordon
patent: 3614772 (1971-10-01), Paine
patent: 3795900 (1974-03-01), Monford
patent: 3997905 (1976-12-01), Iwata
patent: 4061431 (1977-12-01), Toyoda
patent: 4184151 (1980-01-01), Iwata

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