Automobile burglary detecting circuit
First Claim
1. An automobile burglary detecting circuit for use with an automobile electrical system having an automobile electrical accessory activated by a switch, comprising:
- signal generating means coupled to said electrical system for imposing an oscillating signal on said system;
signal detecting means for detecting said signal;
alarm oscillator means coupled to said signal detecting means for imposing an alarm oscillating signal onto said electrical system; and
alarm filter means for detecting said alarm oscillating signal and activating an alarm.
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Accused Products
Abstract
An automobile burglary detecting circuit for use with an automobile electrical system having an electrical accessory activated by a switch. The detecting circuit also includes a signal generator for imposing an oscillating signal on the electrical system, and a signal detector which detects the signal from the system. An alternative embodiment includes a further signal generator which is responsive to the signal detector, and which imposes a second oscillating signal on the electrical system. The second oscillating signal is detected by a filter which activates an alarm.
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Citations
1 Claim
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1. An automobile burglary detecting circuit for use with an automobile electrical system having an automobile electrical accessory activated by a switch, comprising:
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signal generating means coupled to said electrical system for imposing an oscillating signal on said system; signal detecting means for detecting said signal; alarm oscillator means coupled to said signal detecting means for imposing an alarm oscillating signal onto said electrical system; and alarm filter means for detecting said alarm oscillating signal and activating an alarm.
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Specification
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- Resources
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Current AssigneeDella Corporation
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Original AssigneeRich & Ezer A Law Corporation
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InventorsSoum, Rene, Granel, Pierre, Rich, Richard, Eustache, Dominique
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Primary Examiner(s)Orsino, Jr., Joseph A.
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Assistant Examiner(s)TUMM, BRIAN
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Application NumberUS06/911,873Time in Patent Office746 DaysField of Search340/63, 340/538, 340/310 A, 340/531, 307/10 AT, 307/10 RUS Class Current340/428CPC Class CodesB60R 25/1001 Alarm systems associated wi...B60R 25/1018 Alarm systems characterised...
