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:
May. 13, 2008
Filed:
Sep. 05, 2003
Akinari Takada, Tokyo, JP;
Takashi Ihara, Tokyo, JP;
Masaaki Namekawa, Tokyo, JP;
Masami Fukuda, Tokyo, JP;
Minoru Kobayashi, Tokyo, JP;
Akinari Takada, Tokyo, JP;
Takashi Ihara, Tokyo, JP;
Masaaki Namekawa, Tokyo, JP;
Masami Fukuda, Tokyo, JP;
Minoru Kobayashi, Tokyo, JP;
Citizen Holdings Co., Ltd., Tokyo, JP;
Abstract
The invention is directed to obtaining a radio controlled timepiece that, in a case when the user who uses it moves from one country or one region to another where the time difference is different, has simplified an operation of correcting the time difference between the countries or regions and an operation of correcting the time difference due to daylight saving time's being executed. To this end, the invention provides a radio controlled timepiecethat, in addition to the radio controlled timepiecein the prior art, it further includes offset time difference information storage meansthat stores an offset time difference between a country where reference time information is formed and a country where a standard radio wave has been received and daylight saving time information storage meansthat has stored therein for future use information on whether daylight saving time is being executed in the region where the standard radio wave has been received, and local standard time information forming meansthat, with respect to the reference time information of the standard radio wave that has been received in a particular region, executes calculation processing by using at least either one of offset time difference information with respect to the reference time information corresponding to the particular region and daylight saving time information in the particular region, to thereby form local standard time information in the particular region.