Communications: electrical – Selective – Having indication or alarm
Patent
1979-06-04
1983-05-10
Caldwell, Sr., John W.
Communications: electrical
Selective
Having indication or alarm
180287, 307 10AT, 340539, 340543, 34082532, 361172, B60R 2504, G08B 1308
Patent
active
043832423
ABSTRACT:
An anti-theft system which is armed only when a hand-held coded transmitter is operated; the system is disarmed upon a subsequent operation of the transmitter. Whenever the transmitter is operated, the horn beeps, and the lights flash; this provides both verification that the system is armed, and serves as a car-locating aid in a parking field. Tampering with the automobile results in intermittent beeping of the horn and flashing of the lights. The horn beeping may be disabled during the verification and car locating sequences, while still operating if unauthorized access to the automobile is attempted. Other features include disabling of the horn beeping by momentarily turning on the ignition; beeping of the horn after the system is disarmed and a door is opened by the operator if, during his absence, unauthorized access was attempted; locking and unlocking of the doors with transmitter operation; and detection of unauthorized access attempts by sensing vibrations in the vehicle radio loudspeakers.
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Rennie William A.
Sassover Nathan
Caldwell Sr. John W.
Gottlieb George
Nowicki Joseph E.
Rackman Michael I.
Reisman James
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