Epm having an improvement in non-volatile storage of...

Details Epm having an improvement in non-volatile storage of... Epm having an improvement in non-volatile storage of...

G - Physics

06

F

354/34

G06F 3/12 (2006.01) G07B 17/00 (2006.01) G11C 11/00 (2006.01) G11C 29/00 (2006.01)

Patent

CA 2003377

An electronic postage meter has two non-volatile memory devices, each of a different technology, CMOS battery-backed RAM and E2PROM. The E2PROM technology allows a limited number of rewrites. In order to provide real-time accounting in such a non-volatile memory over the life of the meter, a trip data counter is stored in a circular data store in addition to a separate account of other postage accounting data, including printwheel setting information. The trip data counter is used for calculations of postage meter register data. The separate account is updated at predetermined intervals using the trip counter data if necessary fox data recovery.

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