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:
Feb. 28, 1978
Filed:
Jul. 23, 1976
Applicant:
Inventors:
Makoto Yoshida, Tokorozawa, JA;
Yoshifumi Mochizuki, Tokorozawa, JA;
Masamichi Yamauchi, Ichikawa, JA;
Hideyuki Kawashima, Higashi Kurume, JA;
Assignee:
Citizen Watch Co., Ltd., Tokyo, JA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G04C / ; H03K / ; H03B / ;
U.S. Cl.
CPC ...
58 2 / ; 328 55 ; 3311 / ;
Abstract
An adjustable circuit for an electronic timepiece including a crystal oscillator, a frequency divider circuit, a display and a controlable means for increasing and decreasing the output frequency of the frequency divider circuit. The increasing and decreasing means includes a digital adder and a digital subtractor and a plurality of controlable gates for enabling the digital adder or subtractor to increase or decrease the output frequency of the frequency divider.