Electronic postage meter operating voltage variation sensing sys

Details Electronic postage meter operating voltage variation sensing sys Electronic postage meter operating voltage variation sensing sys

1979-10-30

1981-08-18

Springborn, Harvey E.

Boots, shoes, and leggings

G06F 100

Patent

active

042850509

ABSTRACT:
An electronic postage meter includes an operating voltage variation sensing system. Protection is provided for preserving postage accounting information stored in the meter if the operating power for the meter fails. Control circuits are connected to the accounting circuit and to circuitry providing signal information representative of the power condition. The control circuit operates to maintain the accounting circuit in either an operative or inoperative state. The control circuits can be set to bring the accounting circuit from the inoperative state only when the signal information reflects a sufficient power condition. Once set to maintain the accounting circuit in the operative state, the control circuits continue to maintain the accounting circuit operative, independent of signal information reflecting a power failure.

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