Method and device for protecting access to a message
US9900311B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 2, 2014 |
| Grant date | Feb 20, 2018 |
| Priority date | — |
| Expiry date | Feb 11, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/046
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A device for reading a message includes a reader to read biometric data of a holder of the medium and a scanner to capture, on a medium, an encoded message having elementary message units. The message includes a noise that consists of marking defects of the message on the medium which are random and unpredictable for each elementary message unit. A noise reducer to reduce the noise of the captured message based on biometric data. A decoder to decode at least one portion of the message in which the noise has been at least partially removed. Preferably, the decoder utilizes redundancies of the message with the noise removed to determine at least one portion of the encoded message.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.