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Apparatus for checking the lifetime of household electronic or electric appliances

  • US 5,581,469 A
  • Filed: 06/14/1994
  • Issued: 12/03/1996
  • Est. Priority Date: 06/17/1993
  • Status: Expired due to Term
First Claim
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1. An apparatus for checking the lifetime of a video cassette recorder, comprising:

  • a sensor for outputting signals indicating that a mechanical part of the video cassette recorder is energized;

    a memory for storing energization time of the mechanical part; and

    a microprocessor for determining accumulated energization time of the mechanical part as a function of the signals from the sensor and for updating the energization time in said memory.

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