Method for broadcasting a data stream based on time lag in a network including a plurality of transmitters, computer program product, head-end system for implementing said method
US8683069B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 11, 2009 |
| Grant date | Mar 25, 2014 |
| Priority date | — |
| Expiry date | Dec 26, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/64315
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method is provided for broadcasting a data stream in a network including at least two separate transmitters supplied by a head end. The stream is organized into data frames and includes at least one time marker. The method includes the following steps at the head end: obtaining a first time reference from an external source; obtaining a second time reference from the data stream received by the head end; comparing the first and second time references in order to determine a time shift between the first and second time references; and transmitting the time shift or at least one time marker modified on the basis of the time shift in order to compensate for a transport time variation between the head end and the transmitters.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.