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Event detection device with fault monitoring capability

  • US 6,265,970 B1
  • Filed: 06/22/1998
  • Issued: 07/24/2001
  • Est. Priority Date: 12/20/1995
  • Status: Expired due to Term
First Claim
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1. An event detection device, comprising:

  • a first sensor to generate a first output signal in response to the detection of an event, the first sensor generating a second output signal to prevent activating a fault indicating circuit upon detecting the event on a second occasion within a predetermined time interval; and

    a comparator to compare the first output signal with a threshold signal and activate a timed sequence processor when the first output signal exceeds the threshold signal on a first occasion, the timed sequence processor being adapted to activate the fault indicating circuit after the predetermined time interval unless the first sensor generates the second output signal in response to the detection of an event on the second occasion within the predetermined time interval.

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