Digital broadcast transmitter/receiver having an improved receiving performance and signal processing method thereof
US7983354B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 27, 2006 |
| Grant date | Jul 19, 2011 |
| Priority date | — |
| Expiry date | Aug 17, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04H60/07
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A digital broadcast transmitting/receiving system, and a signal processing method thereof, includes a randomizer for randomizing a transport stream into a specified position of which stuff bytes are inserted, a stuff-byte exchanger for replacing the stuff bytes included in data output from the randomizer with specified known data, an RS encoder for performing an RS-encoding of data output from the stuff-byte exchanger, an interleaver for interleaving data output from the RS encoder, a trellis encoder for performing a trellis encoding of data output from the interleaver, an RS parity generator for generating a parity by performing an RS encoding of data output from the RS encoder, and outputting the generated parity to the trellis encoder, and a modulator/RF converter for modulating data output from the trellis encoder and performing an RF up-converting of the modulated data. The digital broadcast receiving performance can be improved even in an inferior multi-path channel by detecting the known data from the received signal and using the known data for synchronization and equalization in a digital broadcast receiver.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.