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:
Aug. 12, 1980
Filed:
Dec. 21, 1978
Applicant:
Inventor:
Bernard Maire, Marin, CH;
Assignee:
Ebauches SA, Neuchatel, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G04C / ; G08B / ;
U.S. Cl.
CPC ...
368 66 ; 340636 ;
Abstract
The invention concerns an electronic timepiece including a system for detecting the end of useful battery life. This system is based on a circuit for detecting the length of the driving pulses for the stepping motor, associated with a circuit for shortening the driving pulses. The detector circuit comprises two counters, the output logic levels of which coincide when the voltage of the battery has dropped to a value such that the stepping motor is at its limit of operation, in which case the duration of the driving pulses is at a maximum.
Maire, Bernard. (1980). System for detecting the end useful life of a battery in an electronic (U.S. Patent No. 4216648). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4216648
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile