Method and a system for time synchronisation between a control centre and several transmitters
US8553619B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 23, 2009 |
| Grant date | Oct 8, 2013 |
| Priority date | — |
| Expiry date | Feb 5, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W72/30
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Time synchronization between a control center and transmitters in a single frequency network is provided by generating and receiving a first reference time signal with a high time and frequency accuracy in a short and long time horizon and a second reference time signal supplied to the control center with a low time and frequency accuracy in the short time horizon and a high time and frequency accuracy in the long time horizon. A transport data stream is generated and supplied to the transmitters with a time-variable data rate through the control center corresponding to a frequency of the second reference time signal. Time displacement of the transport data stream received from the control center is performed by a respective transmitter until the data packets of the transport data stream each containing a transmission time are transmitted at a correct transmission time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.