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System, method, and device for automatic setting of clocks

  • US 5,805,530 A
  • Filed: 09/05/1996
  • Issued: 09/08/1998
  • Est. Priority Date: 09/05/1995
  • Status: Expired due to Term
First Claim
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1. A system for updating the time of a remote host device, the system comprising:

  • (a) a remote host time piece device for maintaining the time of day and having a timebase with a reference from an electronic input;

    (b) a master time piece for obtaining the correct time and for transmitting the correct time to the remote host time piece device;

    (c) means for accepting the transmission of the correct time from the master time piece and for setting the time of day in the remote host time piece device to the correct time transmitted from the master time piece;

    (d) means, remote from the master time piece, for initiating from the master time piece the transmission of the correct time to the remote host time piece device upon the occurrence of at an event; and

    wherein;

    the master time piece transmits to the remote host time piece device an accuracy number that is used to determine based upon a selected tolerance whether the transmitted correct time from the master time piece is to be accepted for setting the time of day in the remote host time piece device to the correct time transmitted from the master time piece.

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