Multi-purpose radio
First Claim
1. A combined radio receiver and alarm comprisinga radio cabinet,power supply means within said cabinetradio receiver means with said cabinet, said radio receiver means including audio frequency amplifier means and loudspeaker means connected to said audio frequency amplifier means,alarm means including an ultrasonic transmitter and ultrasonic receiver means, located entirely within said cabinet, andswitching means which when placed in a first state electrically connecting said alarm means to said power supply means and said audio frequency amplifier means to activate said alarm means, said switching means including delay means which prevents the activation of said alarm means for a predetermined time after said switching means has been placed in said first state.
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Accused Products
Abstract
A multi-purpose radio of the AC or battery operated type which includes connections for an auxiliary unit which is an alarm device of the ultrasonic type in which the transducers of the alarm device are mounted on the radio cabinet. The output of the alarm device is applied to the audio frequency amplifier section of the radio.
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Citations
13 Claims
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1. A combined radio receiver and alarm comprising
a radio cabinet, power supply means within said cabinet radio receiver means with said cabinet, said radio receiver means including audio frequency amplifier means and loudspeaker means connected to said audio frequency amplifier means, alarm means including an ultrasonic transmitter and ultrasonic receiver means, located entirely within said cabinet, and switching means which when placed in a first state electrically connecting said alarm means to said power supply means and said audio frequency amplifier means to activate said alarm means, said switching means including delay means which prevents the activation of said alarm means for a predetermined time after said switching means has been placed in said first state.
Specification