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:
Nov. 27, 1990
Filed:
Apr. 05, 1990
Richard A Balch, North Hampton, NH (US);
General Electric Company, Somersworth, NH (US);
Abstract
A method and apparatus for improving the timekeeping accuracy of a time of the use or demand of energy electronic register in an electric energy meter includes compensating for the absence of line frequency timing pulses for the period between the occurrence of a power outrage and the actuation of backup timekeeping resulting from the power supply filter capacitor discharge time. A timing counter counts minutes of line frequency timing signals by decrementing a counter which is also provided with the interval interrupt operating pulses of the electronic register such that in the absence of line frequency pulses the interval interrupt operating pulses are counted and added to electronic register timekeeping system after a power down mode of operation.