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Stimulus-dependent electronic device

  • US 20030114143A1
  • Filed: 12/19/2001
  • Published: 06/19/2003
  • Est. Priority Date: 12/19/2001
  • Status: Active Grant
First Claim
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1. A two-way radio requiring a stimulus from an external source for completion of a power-up sequence, the radio comprising:

  • operational circuitry of the radio for reception and transmission of a radio signal;

    a power source that provides power to the operational circuitry; and

    a stimulus-sensitive switch interposed between the power source and the operational circuitry;

    wherein, the stimulus-sensitive switch is configured to remain closed upon initial exposure to a given stimulus, until such time as the radio is powered down.

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