System and method for providing terrestrial digital broadcasting service using single frequency network
US7564905B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 11, 2003 |
| Grant date | Jul 21, 2009 |
| Priority date | — |
| Expiry date | Jun 29, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/6112
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Provided is a system and method for terrestrial digital broadcasting service using a single frequency network without additional equipment. The system and method synchronizes input signals into transmitting stations by inserting a transmission synchronization signal into a header of TS periodically, and solves the problematic ambiguity of the trellis encoder by including a trellis encoder switching unit separately and initializing a memory of the trellis encoder. The terrestrial digital broadcasting system includes: a broadcasting station for multiplexing video, voice and additional signals into transport stream (TS) and transmitting the TS to the transmitting stations and a transmitting stations for receiving the TS and broadcast the TS to receiving stations through a single frequency network.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.