Mechanism for controlling if/when material can be printed on a specific printer
US7222368B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 28, 2002 |
| Grant date | May 22, 2007 |
| Priority date | — |
| Expiry date | Jul 31, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F21/608
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A secure print system comprises a sending computer entity and a plurality of receiving entities, each capable of decrypting and printing a specified number of copies of a document. The sending computer entity and the plurality of receiving devices are each pre-registered with each other by means of unique device identification number, which is embedded in inaccessible hardware, firmware or software components at the point of manufacture, linking the sending computer entity and the plurality of receiving devices. The receiving devices, after decrypting a received message, print a specified number of copies only, before deleting the electronic data from which the document copies have been printed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.