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:
Dec. 06, 1977
Filed:
Jul. 13, 1976
Sizuo Yamaguchi, Sayama, JA;
Citizen Watch Company Limited, Tokyo, JA;
Abstract
An electronic timepiece in which a high frequency signal from a frequency standard is divided down to a low frequency signal by a frequency converter. A decade decimal counter is connected between the frequency converter and a time counter to generate first, second and third phase signals in response to the low frequency signal from the frequency converter. The time counter is responsive to the first phase signal to gradually increment the count value therein, and is arranged such that it generates a reference time information signal prior to current time. First and second memory circuits are arranged to receive an output from a decoder in which the reference time information signal is converted into code format. The first and second memory circuits are responsive to the second and third phase signals from the decade decimal counter and to the coded signals from the decoder to generate bleaching signals and coloration signals, respectively, prior to current time.