Electronic postage meter reset circuit

Details Electronic postage meter reset circuit Electronic postage meter reset circuit

G - Physics

07

B

354/38

G07B 17/00 (2006.01)

Patent

CA 1214558

ELECTRONIC POSTAGE METER RESET CIRCUIT Abstract of the Disclosure A reset circuit for an electronic postage meter controls the operation of the reset line of the meter's computing system. The reset circuit operates in conjunction with a non-volatile memory protection circuit. The inter- relation of the reset circuit and non-volatile memory protection circuit protects against the possible loss of postage funds due to spurious data being written into the non-volatile memory. The reset circuit operation is con- trolled in part by the voltage levels applied to the non- volatile memory. This insures that the reset to the elec- tronic postage meter computing system is released during power-up of the meter after proper voltage levels have applied to the meter's non-volatile memory and reestablished during low power or power-down conditions.

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