The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 20, 2013
Filed:
Feb. 06, 2012
Toshikazu Akiyama, Nagano-ken, JP;
OH Jaekwan, Nagano-ken, JP;
Toshikazu Akiyama, Nagano-ken, JP;
Oh Jaekwan, Nagano-ken, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
An electronic timepiece can easily acquire a leap second information reception time with minimal processor load. A first table groups leap second information reception times expressed by hour, minute, second, and day values into plural minute-second patterns of minute-second combinations that are common to plural hours, and relates numbers identifying these minute-second patterns to the day and hour values. The minute-second combinations are grouped by number in a second table. The number corresponding to the day and hour of the internal time is found from the first table (S). A minute-second combination that is later than the internal time is found from the minute-second combinations corresponding to the acquired number (S). And leap second reception time is calculated. If the resulting leap second reception time matches the internal time is determined (S). If the times match, the leap second information is received (S, S).