Device and method of compensating for degradation of received signal
US6573947B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 7, 2000 |
| Grant date | Jun 3, 2003 |
| Priority date | — |
| Expiry date | Jul 24, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/426
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A device and method of compensating for degradation of a received signal in a digital television receiver is disclosed. The device comprises a pre-distortion filter delaying and gain controlling a digital IF signal according to an input parameter control signal; a synchronizer for demodulating a baseband signal by using a pilot signal included in an output signal of the pre-distortion filter, and restoring timing; a channel equalizer for canceling multipath distortion occurring while a television signal passes a transmission channel; and a controller for outputting a parameter control signal such that a filter tap energy output from the channel equalizer becomes a maximum.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.