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:
Jun. 13, 1978
Filed:
Sep. 10, 1976
Yasushi Nomura, Tokorozawa, JA;
Yasuhiko Nishikubo, Iruma, JA;
Citizen Watch Company Limited, Tokyo, JA;
Abstract
A display control circuit for an electronic timepiece for controlling a timer circuit to vary the length of time for which the display of time or calendar information is to be made. In one preferred embodiment, a timer circuit includes a first section of flip-flops for setting a predetermined length of time when a first external switch is operated, and a second section of flip-flops for setting time interval in addition to the predetermined length of time when a second external switch is operated. A control circuit means is coupled to the timer circuit for controlling the same to vary the total length of time to be set by the timer circuit. In another preferred embodiment, the timer circuit is energized with selected one of frequency signals from a frequency converter of the electronic timepiece to set the length of time in dependence on the selected one of the frequency signals. The frequency signals are selected by operating the external switch a predetermined number of times or by continuously operating the external switch for a prescribed time interval.