Camera including optical encoding of audio information

Details Camera including optical encoding of audio information Camera including optical encoding of audio information

1993-08-19

1994-11-08

Blankenship, Howard B.

Optics: motion pictures

Removable film strip magazine type

352 27, 355 41, 369 96, G03B 2900

Patent

active

053631587

ABSTRACT:
A camera system is disclosed that optically records audio information on a photographic film containing corresponding image information. The camera system includes a user interface coupled to a camera control processor, a recording circuit coupled to the camera control processor and a microphone, an optical encoding circuit having an input coupled to the output of the recording circuit and an output coupled to an optical write head, a shutter mechanism, and a transport mechanism for advancing film past the shutter mechanism and the optical write head. In operation, the camera control processor, in response to command signals received from the user interface, controls the operation of the recording circuit, the optical encoding circuit, the optical write head, the shutter mechanism and the transport mechanism, to record audio segments of variable duration and to encode the audio segments as an audio film frame at a location adjacent to the last picture film frame as the transport mechanism advances film past the optical write head.

REFERENCES:
patent: 2925753 (1960-02-01), Schwartz et al.
patent: 3046836 (1962-07-01), Schwartz et al.
patent: 3230824 (1966-01-01), Schwartz et al.
patent: 3379095 (1968-04-01), Kaprelian
patent: 3435156 (1969-03-01), Schwartz et al.
patent: 4600280 (1986-07-01), Clark
patent: 4945373 (1990-07-01), Hashimoto
patent: 4983996 (1991-01-01), Kinoshita

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