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Autonomous radio timepiece

  • US 5,105,396 A
  • Filed: 05/02/1991
  • Issued: 04/14/1992
  • Est. Priority Date: 05/04/1990
  • Status: Expired due to Term
First Claim
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1. An autonomous timepiece comprising:

  • an internal timekeeping circuit for generating an autonomous time signal;

    a radio receiver for receiving radio transmissions of time information and generating an absolute time signal;

    a register for registering time according to said absolute time signal when said radio receiver is activated and according to said autonomous time signal when said radio receiver is not activated, whereby the received time information corrects any deviation in the registered time according to the absolute time signal and the autonomous time signal advances the registered time when said receiver is not activated; and

    a display for displaying the registered time and for displaying the field intensity of the time information transmission.

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