G - Physics – 01 – R
Patent
G - Physics
01
R
324/70
G01R 22/00 (2006.01) G01R 21/133 (2006.01)
Patent
CA 2034390
11-ME-234 ABSTRACT OF INVENTION A method and apparatus for improving the timekeeping accuracy of a time of 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 outage 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.
Company General Electric
Craig Wilson And Company
LandOfFree
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