Radio-controlled timepiece
OwnerTomohiro Ihashiinventor
Life of this patent
Estimating the term…
Abstract
To make it possible by a simple constitution to display a reception sensitivity. An antenna receives a standard wave, and a reception circuit extracts a time code contained in the standard wave, thereby outputting it to a control circuit. The control circuits detects, in a common region where a signal level of each bit constituting the time code ought to become the same, the signal level of the bit, and judges a goodness/badness of the reception sensitivity on the basis of the number of the bit in which the signal level has become a predetermined level within a predetermined time, thereby notifying by displaying it to a display section.
Claims4
A radio-controlled timepiece comprising:
- reception means for receiving by a radio wave a time code containing an information of a present time instant;
- notification means, and
- control means which detects, in a common region where a signal level of each bit constituting the time code ought to become a predetermined same level, the signal level of the bit, which judges a goodness/badness of a reception sensitivity on the basis of the number of the bit in which the signal level has become a predetermined level within a predetermined time, and which notifies the goodness/badness of the reception sensitivity by the notification means and which a clock time instant is corrected to a time instant corresponding to the received time code.
Dependencies are inferred from the claim text.