Audio output circuit in electronic apparatus with composite disp

Details Audio output circuit in electronic apparatus with composite disp Audio output circuit in electronic apparatus with composite disp

1991-09-04

1993-08-17

Kostak, Victor R.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358198, H04N 5262

Patent

active

052374181

ABSTRACT:
An audio output circuit in an electronic apparatus equipped with a composite display function where a plurality of pictures can be displayed on composite screen regions of a single display screen. The circuit includes an audio signal switching circuit for selectively switching audio signals relative to the pictures displayed on the individual screen regions and outputting the selected audio signal to a speaker. The circuit also includes a simultaneous audio output switching circuit for selecting a plurality of audio signals out of those relative to the pictures displayed on the individual screen regions and then outputting the selected audio signals simultaneously through a plurality of speakers. Thus any audio signal(s) relative to the picture(s) displayed on the individual screen region(s) can be heard either selectively or simultaneously through the speaker(s).

REFERENCES:
patent: 2832821 (1958-04-01), DuMont
patent: 3303279 (1967-02-01), Tinklepaugh
patent: 3875674 (1974-07-01), Justice
patent: 5099365 (1992-03-01), Kang

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