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. 10, 1983
Filed:
Jul. 16, 1980
Applicant:
Inventors:
Masaharu Shida, Tokyo, JP;
Akira Torisawa, Tokyo, JP;
Jun Ueda, Tokyo, JP;
Masaaki Mandai, Tokyo, JP;
Katsuhiko Sato, Tokyo, JP;
Assignee:
Primary Examiner:
Int. Cl.
CPC ...
G06F / ; G04C / ;
U.S. Cl.
CPC ...
368157 ; 368218 ; 318696 ;
Abstract
In an analog electronic watch having a calendar display the power required during change of the calendar display, about 6 hours out of 24, is greater than at other times. In order to effect economy in power consumption, the pulse for driving the watch motor during the time other than the period in which the calendar display is being changed is only sufficient to drive the time indicating means. In case the motor fails to step when such pulse is applied, this is detected by a detecting circuit and a corrective drive pulse is applied to the motor so as to drive it.