Method and system for radio communication
US5289496A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 25, 1991 |
| Grant date | Feb 22, 1994 |
| Priority date | — |
| Expiry date | Feb 25, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/715
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
In a frequency hopped radio communication system wherein a control signal and a speech signal are transmitted together and the speech signal is transmitted via a predetermined set of frequency bands, method and apparatus are provided for converting the control signal into a corresponding RF control signal having a frequency spectrum lying in frequency bands separate from the predetermined set of bands. The frequency bands for the RF control signal may be between the predetermined set of frequency bands for the speech signal and may particularly be within guard bands established between the set of frequency bands for the speech signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.