Embedding authentication information to prevent document spoofing
US8089661B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 19, 2008 |
| Grant date | Jan 3, 2012 |
| Priority date | — |
| Expiry date | Oct 26, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2201/3271
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In a computer system in which information represented by digital data is output to plural pages of recording medium, and then information on the plural pages of recording medium is read to use digital data representing the read information, authentication information is embedded in information of a start page selected by the computer system; a page number of the start page embedded the authentication information is notified to a user; information on the plural pages of recording medium is read, wherein the start page is positioned so as to be read first; digital data read from the plural pages of recording medium is authenticated based on the authentication information embedded in the start page; and a process for the digital data read from the plural pages of recording medium is controlled in accordance with a result of the authentication.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.