Franking method and mail transport system with central postage accounting
US8046304B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 26, 2008 |
| Grant date | Oct 25, 2011 |
| Priority date | — |
| Expiry date | Sep 4, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07B2017/00846
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
In a franking method and a mail transport system, a franking image is calculated before generation thereof on a mail piece. The franking image includes a franking image key, and for each new franking image, the franking image key therefor is derived from a predecessor franking image key according to a first crypto-algorithm. An integrity check code is also generated based on the new franking image key, a key generation number, an apparatus identifier of the franking device, and a second crypto-algorithm. The franking image includes at least the device identifier, the key generation number and the integrity check code. Upon transport of the mail piece to a sorting center, the franking image is scanned and fees for billing are generated based thereon.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.