Method of and apparatus for determining co-channel interference in digital television system
US6229560A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 9, 1998 |
| Grant date | May 8, 2001 |
| Priority date | — |
| Expiry date | Dec 9, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/426
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An apparatus and method for determining co-channel interference in a DTV system is disclosed including a first comb filter filtering the received digital data including a data field signal; a pattern generating unit generating a reference sync signal from the data field signal; a second comb filter filtering the reference sync signal; a selection unit receiving either the digital data that passed or have not passed the first comb filter to output one of the data in response to a selection signal; a determination unit determining the presence of a co-channel interference; a first counting unit counting up/down a counted value in response to an output signal of the determination unit; and a second counting unit counting the reliability of the counted value output from the first counting unit, and providing the selection signal to the selection unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.