Confidential transmission of data by change of frequency in a telecommunications network
US8121141B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 19, 2007 |
| Grant date | Feb 21, 2012 |
| Priority date | — |
| Expiry date | May 19, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04K1/003
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Data is transmitted by a first terminal (11) to a second terminal (12) in a telecommunications network (10) in a plurality of sets of data packets. In the first and second terminals, as a function of a selection rule common to the first and second terminals, transmission frequencies are selected from transmission frequencies in a secret list of transmission frequencies that is common to the first and second terminals. Next, the sets of data packets are transmitted (15, 16) from the first terminal to the second terminal at respective selected transmission frequencies. The common list of transmission frequencies is allocated on the basis of available frequencies with respect to the first and second terminals and collected from the telecommunications network.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.