Automatic release camera

Details Automatic release camera Automatic release camera

1991-07-18

1992-11-10

Perkey, W. B.

Electrical audio signal processing systems and devices

Hearing aids, electrical

Specified casing or housing

381105, 381110, G03B 1740

Patent

active

051628325

ABSTRACT:
A camera for taking a photograph by automatically releasing a shutter, comprising; a detector for detecting a sound pressure level, and a pre-programed CPU for determining a first period of time that the detected sound pressure level exceeds a predetermined sound pressure level in which the camera releases the shutter when the first period of time exceeds a second period of time, and the CPU varies the second period of time according to an increase rate of the sound pressure.

REFERENCES:
patent: 3961342 (1976-06-01), Maida
patent: 4068092 (1978-01-01), Ikoma et al.
patent: 5014079 (1991-05-01), Kakita
Popular Photography, "It doesn't talk, it listens", vol. 97, No.2, Feb. 1990, p. 21.

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