Communications: electrical – Selective – Having indication or alarm
Patent
1978-08-04
1980-08-19
Waring, Alvin H.
Communications: electrical
Selective
Having indication or alarm
340539, 340541, 455 99, G08B 1300
Patent
active
042187630
ABSTRACT:
A controlled electronic alarm signaling system, installed in a vehicle, or other property. The system has a transmitter which broadcasts a coded signal to a companion coded receiving device carried by an authorized person or installed at an authorized remote location. The transmission, which is of limited duration, occurs in response to tampering sensors located on the vehicle or other property which are connected to a control unit. Optionally, the control unit has the capability of switching on audible, visual and mechanical devices installed in the vehicle or other property for deterring and preventing theft, attempted theft, unauthorized entry and tampering. The transmitter is specifically tuned and uniquely coded to a receiving device which, having been activated, will in turn cause audible and other devices to be activated. A magnetic tape player with a speaker connected to the vehicle or other property sounds a warning message. Switching devices, which, when closed, opened, or delayed, activate the vehicle's or other properties' lights, horn, and antenna. The control unit for this system can be programmed by selective wiring for different functions and is installed inside of the vehicle or other property. The entire system is controlled by one 3-position toggle switch mounted inside the vehicle or other property. Provision for an auxiliary power supply is also employed.
REFERENCES:
patent: 2979706 (1961-04-01), Simon et al.
patent: 3230454 (1966-01-01), Van Burkleo
patent: 3795896 (1974-03-01), Isaacs
Brailsford Lawrence J.
Kelley Ishmael C.
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