Point-to-point secure modem and method
US6463094B2 · kind B2 · utility
4Cited by
18References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 14, 1998 |
| Grant date | Oct 8, 2002 |
| Priority date | — |
| Expiry date | Apr 14, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/34
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A modem includes symbol converting unit and processing unit. The symbol converting unit converts between binary data and symbol data in accordance with a first constellation which is a transformed version of a standard constellation and the processing unit process the symbol data for transmission and produce symbol data from received signals. Alternatively, the symbol converting unit has at least two constellations to be selected.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.