System and method for selectively scrambling multidimensional digital frame structure communications
US7023881B1 · kind B1 · utility
7Cited by
27References
32Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 22, 2000 |
| Grant date | Apr 4, 2006 |
| Priority date | — |
| Expiry date | Mar 30, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J3/1611
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A system and method have been provided to increase security in scrambled communications by periodically changing the seed masks used to generate the scrambling algorithms at the transmitter and receiver. The scrambling algorithm is changed by periodically modifying the seed masks which establishes the initial state of the scrambling algorithm generators. The same seed mask key is passed through an auxiliary communication channel to the receiver to insure that matching descrambling algorithms are generated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.