Franking machine

Details Franking machine Franking machine

1993-03-05

1996-04-16

Beausoliel, Jr., Robert W.

Boots, shoes, and leggings

36446402, G01R 3128, G06F 1100

Patent

active

055091172

ABSTRACT:
The memory (RAM) of an electronically controlled franking machine containing data corresponding to postal value amounts is enclosed, together with a microprossor (CPU) on a mounting board in a lead-sealed casing. In the event of a defect of an element enclosed in such casing, the complete assembly unit comprising the mounting board and the casing is replaced. In order to be able to subsequently transfer in tamper-proof manner, the data from the memory to that of the new assembly unit, in a transceiver bus between the memory and the CPU, there are two plug units. One of these plug units is closed by a connector unit, so that during the operation of the franking machine the data flow is looped through the connector unit. A writing line, provided in addition to the transceiver bus, is used for reading in the working data during franking, so that it is not accessible via any plug unit. For the transfer of the data, the plug unit of the defective assembly unit, following the removal of the connector unit, is connected to the plug unit of the replaced, new assembly unit.

REFERENCES:
patent: 4421977 (1983-12-01), Kittredge
patent: 4481604 (1984-11-01), Gilham
patent: 4757532 (1988-07-01), Gilham
patent: 4837714 (1989-06-01), Brookner et al.
patent: 4853523 (1989-08-01), Talmadge
patent: 5029093 (1991-07-01), Wiener
patent: 5109507 (1992-04-01), Check, Jr.
patent: 5121432 (1992-06-01), Gilham et al.
patent: 5157616 (1992-10-01), Haug
patent: 5200903 (1993-04-01), Gilham
patent: 5307280 (1994-04-01), Haug

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