Method for removing funds from a postal security device
US6058384A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 23, 1997 |
| Grant date | May 2, 2000 |
| Priority date | — |
| Expiry date | Dec 23, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07B2017/00967
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A method for removing postal funds from a postage meter provides an accounting unit of a postage meter with indicium-related information which is invalid for mailing such as invalid origin zip or date. The accounting unit generates a digital signature, which is an encrypted value of the postal funds removed from the postage meter and other postal data including the indicium-related information. The accounting unit through a Host PC sends to a data center the amount of the postal funds removed from the postage meter and the digital signature. The data center verifies that the digital signature has been generated using the indicium-related information. The meter is disabled when the digital signature cannot be verified. When the digital signature is verified a request for a refund is sent by the data center to a postal authority. An example of the indicium-related information is an invalid destination postal code or an invalid origination postal code.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.