Self-timer device for a camera

Details Self-timer device for a camera Self-timer device for a camera

1985-03-14

1987-02-10

Perkey, William B.

Electrical audio signal processing systems and devices

Hearing aids, electrical

Specified casing or housing

3542891, 354467, 381 57, 340384E, G03B 1718, H03G 324

Patent

active

046419373

ABSTRACT:
A self-timer device which announces its operation with sounds, and in which the sound volume or loudness changes in accordance with environmental sound or exterior noise around the camera so as to always tell the operator with a proper sound that the self-timer is in operation.

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patent: 4424511 (1984-01-01), Alberto, Jr.
patent: 4462669 (1984-07-01), Suzuki

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