Method of franking with early signature generation
US9031879B2 · kind B2 · utility
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2References
3Claims
0Family size
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Key dates
| Filing date | Oct 2, 2007 |
| Grant date | May 12, 2015 |
| Priority date | — |
| Expiry date | Jun 26, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07B2017/00766
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A method of generating a digital signature at a postage meter, in which method a postal imprint is printed on a mail item once said mail item has been weighed and once its postage amount has been determined, said postal imprint being associated with a digital signature generated by means of a secret key on the basis of constant data and variable data, said variable data comprising only a fingerprint code extracted upstream of the weighing from a three-dimensional structure of the fibers of the mail item.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.