Electronic still camera

Details Electronic still camera Electronic still camera

1989-08-14

1991-04-16

Groody, James J.

Facsimile and static presentation processing

Facsimile

Recording apparatus

35821319, 358909, 358228, H04N 314, H04N 5335, H04N 5238, H04N 5225

Patent

active

050087576

ABSTRACT:
An electronic still camera comprises a photoelectric converting device for converting light from an object into an electrical signal; an amplifying-recording device for amplifying the electrical signal and for recording the amplified signal on a recording medium; a selecting device for selecting one of plural amplification gains so that the amplifying-recording device amplifies the electrical signal on the basis of the selected amplification gain; an exposure time in accordance with the selected amplification gain and the luminance of an object to be photographed; and a determining device for determining a longest permissible exposure time, irrespective of the luminance of the object, in accordance with the selected amplification gain. If the calculated exposure time is longer than the longest permissible exposure time, an alarm is given and/or the calculated exposure time is reduced.

REFERENCES:
patent: 4603354 (1986-07-01), Hashimoto
patent: 4635126 (1987-01-01), Kinoshita
patent: 4695888 (1987-09-01), Peterson
patent: 4779137 (1988-10-01), Tojo
patent: 4833536 (1989-05-01), Okino

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