Title: Voice warning device using entertainment speaker

Abstract: A device for producing a voice warning over a speaker which is also used with an entertainment sound production system such as a radio or cassette recorder. The voice warning device incorporates a switching device in the circuit between the speaker and a source of entertainment sound-bearing electric signals, and also incorporates a mechanism for selectively generating electric signals representing human voice sounds for conveying warnings. When a warning signal is being generated, the switching device is switched over from its state where it connects the speaker to the entertainment sound-bearing electric signals to its state where it connects the speaker to the warning signals. Optionally, several different speakers of an entertainment system may be selectively connected to said warning signals by several switching devices.

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Inventors: Torii, Taketsugu (Kasugai, JP)
Oota, Hisatoshi (Toyota, JP)
Arai, Hiroshi (Toyota, JP)

Application Number: 06/204059
Filing Date: 1980-11-04
Publication_date: 1983-06-21
Assignee: TOYOTA MOTOR CO LTD (JP)

Primary Class(es): 340/692 340/870.090, 455/149, 381/123, 381/86, 455/227, 381/1
Other Classes: B60R16/02; G08B25/02; H04M1/00
US Patent Ref:

3098975	July, 1963	Schneiderman	455/227	Emergency radio receiver
3870818	March, 1975	Barton et al.	340/52F	Solid state digital automatic voice response system
3876940	April, 1975	Wickord et al.	340/33	Driver's safety warning system
4006447	February, 1977	Narbaits-Jaureguy et al.	340/33	Audibility-control system for radio receiver
4107464	August, 1978	Lynch et al.	340/692	Alarm communications system

Other Refs:
Primary Examiner: Caldwell Sr., John W.
Assistant Examiner: Crosland, Donnie L.
Attorney: Stevens, Davis, Miller & Mosher

Claims: