Autonomous radio timepiece
AssigneeJunghans Uhren GmbH
InventorsWolfgang Ganter, Wolfram Hodapp
Life of this patent
Estimating the term…
Abstract
A autonomous radio timepiece (11), in particular in the form of a small travel clock or a wristwatch, is designed to operate for an extended period of time with a small battery, and to provide a reliable time display when traveling outside the reception range of a transmitter of coded time telegrams set for a certain geographical time zone. The timepiece casing (20) is equipped with a multifuncton switching device (21) and an associated decoder (23), which evaluates the combination of the momentary actuation of push buttons (22). It is thus possible by means of the switching device (21) to switch into a power saving storage state if the timepiece is not in use, and to return to normal operations.
Claims8
An autonomous radio timepiece, comprising:
- a receiver for receiving and decoding coded time information;
- a display device for displaying time information from said decoded time information received and decoded by said receiver;
- an internal time keeping circuit for advancing said display of said time information of said display device when said receiver is deactivated;
- said circuit comprising a time register for storing a time value;
- and
- a multifunction switching device including a plurality of push buttons, for switching between a power saving state wherein part of said timepiece is turned off and an operating state wherein all of the circuitry of said timepiece is powered,
- whereby, when said receiver is temporarily actuated, said time register is erased and then incremented by the internal time keeping circuit, and whereby only said display device is temporarily deactivated and the time value of the time register is displayed on the display device even if said time register has not been verified and corrected, as necessary, by the coded time information received and decoded by said receiver.
Dependencies are inferred from the claim text.