Electronic photographing apparatus

Details Electronic photographing apparatus Electronic photographing apparatus

1984-02-16

1986-04-22

Rubinson, Gene Z.

Facsimile and static presentation processing

Facsimile

Recording apparatus

358169, 358224, H04N 516

Patent

active

045846103

ABSTRACT:
An electronic photographing apparatus including a photosensor for converting an optical image, which enters through an objective lens, to an electric signal, and two comparators to which a video signal obtained by signal-processing the electric signal is supplied. Supplied to the comparators, respectively, are a reference voltage slightly lower than the saturation level of the video signal and a reference voltage slightly higher than the black level of the video signal. The comparators convert the video signal to a binary signal according to the reference voltages. The binary signals are supplied to a video signal processing circuit and are converted to a binary video signal. When the binary video signal is supplied to the display of an electric finder, an image which is over- or/and underexposed is displayed on the display. When the binary signal is supplied to an automatic exposure unit, the exposure of the scene is automatically controlled according to the over- or/and underexposure.

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patent: 4470067 (1984-09-01), Mino
patent: 4481540 (1984-11-01), Bergen

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