Boots – shoes – and leggings
Patent
1985-03-12
1987-10-20
Gruber, Felix D.
Boots, shoes, and leggings
364464, G06F 1520, G06G 748
Patent
active
047018569
ABSTRACT:
An electronic postage meter with a circuit to provide for a delay period before operation of a postage meter is disclosed. The circuit provides a fixed delay which is triggered when three input signals provided to the circuit become active. The input signals will be active in this embodiment to indicate satisfactory regulated voltage level, a satisfactory unregulated voltage level, and a satisfactory external clock frequency respectively. The output of the delay circuit upon acceptance of these active signals provides a reset delay signal to a system processor and also controls the signals that are provided to the non-volatile memories and the system printer. The circuit uses advantageously logic devices to provide the delay of the output signal rather than the traditional utilization of R-C network. The delay circuit is particularly useful in a system such as postage meter that utilizes a microprocessor and a non-volatile memory, to protect the contents of the non-volatile memory.
REFERENCES:
patent: 3978457 (1976-08-01), Check, Jr. et al.
patent: 4547853 (1985-10-01), Eckert
patent: 4578774 (1986-03-01), Muller
Digiulio Peter C.
Hafner Warren G.
Stalzer Henry
DeSha Michael J.
Gruber Felix D.
Laibowitz Danielle
Pitchenik David E.
Pitney Bowes Inc.
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