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Prealarm system for an anti-theft alarm

  • US 5,216,407 A
  • Filed: 03/10/1992
  • Issued: 06/01/1993
  • Est. Priority Date: 03/10/1992
  • Status: Expired due to Term
First Claim
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1. A prealarm system for coupling to an anti-theft alarm system, comprising:

  • sensor means for generating at least one activation signal responsive to detection of an attempted entry into a vehicle;

    one-shot timer means coupled to said sensor means for generating a first control signal responsive to said activation signal;

    alarm control means coupled to said one-shot timer means for (1) generating a second control signal responsive to fewer than a predetermined number of occurrences of said first control signal in a selected time, or (2) generating a third control signal responsive to a predetermined number of occurrences of said first control signal in said selected time;

    alarm means coupled to said alarm control means for generating an audible warning tone signal responsive to said second control signal and an audible alarm signal responsive to said third control signal;

    light flashing means coupled to said alarm control means for flashing a light for a predetermined time period responsive to said second control signal and substantially continuously flashing said light responsive to said third control signal;

    dome light control means coupled to said alarm control means for illuminating a vehicle dome light responsive to said third control signal; and

    ,paging signal means coupled to said alarm control means for transmitting a warning signal to a remote communication system responsive to said third control signal.

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