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Security system for a building complex having multiple units

  • US 6,204,760 B1
  • Filed: 01/28/1999
  • Issued: 03/20/2001
  • Est. Priority Date: 01/30/1998
  • Status: Expired due to Term
First Claim
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1. A security system for a building complex having multiple units, the system comprising:

  • a main controller located remotely from the units;

    a sensor for sensing a security condition in one of the units and generating a sensor signal indicative of the security condition;

    a unit controller for communicating a unit alarm signal to the main controller without significant delay following generation of the sensor signal; and

    a user input device for receiving user input to invalidate the unit alarm signal, the unit controller communicating an alarm invalidation signal to the main controller in response to the user input, wherein the main controller generates a main alarm signal in the event the unit controller does not communicate the alarm invalidation signal within a delay period following communication of the unit alarm signal.

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