Data scrambling system for a shared transmission media
US7308575B2 · kind B2 · utility
13Cited by
15References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 8, 2001 |
| Grant date | Dec 11, 2007 |
| Priority date | — |
| Expiry date | Oct 30, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/63775
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Methods of providing added security for communications between a server and a particular client modem on a shared communication media. The methods provide for passing communications containing scrambled keys to be used to form scrambling seeds for scrambling subsequent messages. In a preferred embodiment, both the server and the client modem generate and pass keys to be used for the communications between the server and that client modem to achieve a dynamic dual key scrambling system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.