Frequency source synchronization and redundancy
US7840190B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 26, 2007 |
| Grant date | Nov 23, 2010 |
| Priority date | — |
| Expiry date | Feb 2, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B7/12
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A system and method for ensuring proper synchronization of a plurality of frequency sources used in reception diversity-based radio reception. The frequency sources are concatenated in a synchronization loop, through which one frequency source having a high performance oscillator is configured as a master source. Through its oscillator, the master provides an internal synchronization signal that synchronizes all other sources, which have lower performance oscillators and are configured as slaves. Upon a failure in the master oscillator or in the synchronization loop, a slave source takes over as an alternative master source and provides its internal oscillator signal as an alternative synchronization signal to all other frequency sources.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.