Horizontal deflection circuit and television receiver
US6704056B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 22, 2001 |
| Grant date | Mar 9, 2004 |
| Priority date | — |
| Expiry date | Sep 4, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N3/16
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A video signal conversion part of a horizontal deflection circuit deletes a prescribed number of horizontal scanning lines from a vertical blanking interval of an input video signal and assigns a time corresponding to the deleted horizontal scanning lines to horizontal blanking intervals of the remaining horizontal scanning lines thereby extending the horizontal blanking interval of each horizontal scanning line and outputting a video signal. A synchronizing signal separation circuit extracts a horizontal synchronizing signal and a vertical synchronizing signal from the video signal output from the video signal conversion part. An output part of the horizontal deflection circuit supplies a sawtooth horizontal deflection current to a horizontal deflection yoke in synchronization with the horizontal synchronizing signal output from the synchronizing signal separation circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.