Method for filling the valve quantity memory of a franking machine
US5157616A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 26, 1990 |
| Grant date | Oct 20, 1992 |
| Priority date | — |
| Expiry date | Mar 26, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07B2017/00935
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
For filling the value preset memory (20) of a franking machine, a return code is released by the franking machine's read-only memory (21). This return case must be provided to an authorizing central room or station together with the value quantity to be filled in order to receive therefrom an input code permitting the filling of the value preset memory with said amount. The control room and the ROM (21) of the franking machine store in tabular form numerous information pairs comprising an input code and a return code. These codes comprise eight random numbers. By entering the input code in the franking machine, a program in the central electronic control unit of the franking machine causes a search of the control unit's ROM (21) for the table location of an identical, true random number. After establishing this identity, the value preset memory (20) is filled with a predetermined value quantity corresponding to the table and the return code, associated in tabular manner with the final input code and the necessary for future filling operations, is outputted.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.