Electronic still camera device

Details Electronic still camera device Electronic still camera device

1988-10-26

1991-05-07

McElheny, Jr., Donald

Facsimile and static presentation processing

Facsimile

Recording apparatus

358906, H04N 576

Patent

active

050141368

ABSTRACT:
An electronic still camera device has a camera unit capable of recording and reproducing video and audio signals, and an audio adapter detachably attached to the camera unit and which has operation switches, a microphone, a collected sound amount indicator and a circuit capable of compressing and expanding audio signals. To reduce the number of signal lines between the camera unit and the audio adapter, the audio adapter is automatically set in the audio playback mode when the audio adapter has detected that compressed audio signals are being delivered from the camera unit to the audio adapter. The camera unit has a power supply arranged to superpose a D.C. voltage of a high level or a low level to the compressed audio signal. A power supply switch provided in the audio adapter is capable of selectively supplying the source power from the camera unit to the audio adapter in accordance with the level of the D.C. voltage. In order to enable the user to conduct sound collection, sound cancelling and sound recording at any desired timing, the audio adapter has switches capable of generating a sound collection starting instruction, a sound collection stopping instruction and a sound cancelling instruction, and operation is executed in accordance with these instructions. A collected sound amount indicator is provided for indicating the amount of collected sound in terms of the sound collection time.

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patent: 4531161 (1985-07-01), Murakoshi
patent: 4602296 (1986-07-01), Murakoshi
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patent: 4725897 (1988-02-01), Konishi
patent: 4746993 (1988-05-01), Tada
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patent: 4792866 (1988-12-01), Hirobe et al.
patent: 4819101 (1989-04-01), Lemelson
patent: 4841382 (1989-06-01), Sasaki et al.
patent: 4858031 (1989-08-01), Fukuta

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