Narrow band communication system
US5230086A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 29, 1990 |
| Grant date | Jul 20, 1993 |
| Priority date | — |
| Expiry date | Jan 29, 2010 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B7/24
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A narrow band modulation UHF/Microwave communication system comprises a transmit/receive base station having a plurality of transmitter for transmitting information at respective UHF/Microwave channel frequencies to a plurality of remote transmit/receive stations, in which the transmitters at the base station are served in common by a single master oscillator and in which a single reference frequency signal is derived from the master oscillator at the base station and transmitted to all of said remote stations where it serves to provide for frequency locking of the oscillators at said stations to produce synchronization between the frequencies at the base station and the remote stations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.