DTV transmitter and method of coding main and enhanced data in DTV transmitter
US7783960B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 29, 2006 |
| Grant date | Aug 24, 2010 |
| Priority date | — |
| Expiry date | May 30, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04H20/95
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A DTV transmitter includes a pre-processor pre-processing enhanced data, a data formatter generating enhanced data packets including the pre-processed data and inserting known data place holders to the data packets, and a multiplexer multiplexing the enhanced data packets with main data packets. It further includes an RS encoder which RS-codes the multiplexed data packets, and a data interleaver which interleaves the RS-coded data packets. The RS encoder adds systematic RS parity data to each main data packet and adds non-systematic RS parity place holders to each enhanced data packet. The RS encoder adds the RS parity place holders such that the RS parity place holders are placed after the enhanced data within each interleaved enhanced data packet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.