Ultra stable frequency distribution system
US4061974A · kind A · utility
Inventors
Key dates
| Filing date | Jun 21, 1976 |
| Grant date | Dec 6, 1977 |
| Priority date | — |
| Expiry date | Jun 21, 1996 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/50
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A system for synchronizing a signal at a remotely located slave station with the phase and frequency of a signal generated at a master station. The signal transmitted at the master station and received by the slave station provides compensation for the phase shift caused by the transmission path delays between the master and slave station. The slave station transmits a signal to the master station at a frequency that is different from the frequency of the signal being transmitted by the master station. The signal transmitted by the slave station is received by the master station while the master station transmitter is off. The signal transmitted by the master station is received by the slave station while the slave station transmitter is off.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.