| 摘要 |
<p>ELECTRONIC POSTAGE METER RESET CIRCUIT 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 interrelation 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 controlled in part by the voltage levels applied to the nonvolatile memory. This insures that the reset to the electronic 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.</p> |
