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Environmental condition detector with speech recognition

  • US 7,752,047 B2
  • Filed: 04/24/2003
  • Issued: 07/06/2010
  • Est. Priority Date: 05/01/2002
  • Status: Active Grant
First Claim
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1. An environmental condition detector comprising:

  • an environmental condition sensor;

    control circuitry coupled to the sensor;

    the sensor senses an indoor presence of an environmental condition in the ambient vicinity of the detector;

    speech recognition circuitry coupled to the control circuitry in response to audible verbal commands recognized by the recognition circuitry, the control circuitry initiates one of a selected non-test function of the detector or a test of the detector, wherein a first received and recognized verbal command prepares the detector to receive and recognize at least a second verbal command;

    after reception of first recognized verbal command, if a second verbal command is not received and recognized within a preset time interval, the detector re-enters a waiting mode to receive a first verbal command;

    an output device, coupled to the control circuitry which indicates a test result;

    the sensor comprises at least one of a smoke sensor, a fire sensor, a carbon monoxide sensor, a heat sensor, or a motion sensor; and

    a housing which contains the sensor, the circuitry and the output device.

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