Method and apparatus for establishing a connection in shortwave radio networks
US4853686A · kind A · utility
68Cited by
7References
35Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 29, 1987 |
| Grant date | Aug 1, 1989 |
| Priority date | — |
| Expiry date | Apr 29, 2007 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B7/24
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A connection (link setup) between individual stations of a radio network may be carried out fully automatically, and even with poor transmission quality, only the wanted stations are activated. A call signal includes a synchronization signal having narrow band, mark and space signals which form the component signals of a diverse pair of signals. A synchronization signal receiver independently detects and evaluates both of the component signals of the diverse pair as well as comparing the results thereof, with means of digital signal processing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.