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:
Oct. 21, 1980
Filed:
Aug. 22, 1978
Applicant:
Inventor:
Yoshiaki Kato, Higashimurayama, JP;
Assignee:
Citizen Watch Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G04C / ;
U.S. Cl.
CPC ...
368 66 ; 368 80 ; 368204 ;
Abstract
An electronic timepiece having time indicating hands driven by a stepping motor, means for detecting an internal condition such as battery voltage, pulse generating means for generating one or more pulses which are added to the time unit signal pulses applied to the stepping motor if the detected condition changes, and an indication disk which is periodically rotated by the stepping motor and which displays a pattern through a viewing aperture which varies depending upon whether additional pulses have been applied to the stepping motor or not.