Method for assessing the quality of a television image
US6262766A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 30, 1999 |
| Grant date | Jul 17, 2001 |
| Priority date | — |
| Expiry date | Sep 30, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B7/082
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method assesses the quality of a television image. In diversity reception installations including several receivers, it is necessary to establish a criterion for selecting the receiver with the best image quality. For this purpose, the five vertical connection impulses are first detected in the video signal. The detection of the five equalization impulses initiates only after the vertical connection impulses have been detected. Then, the detection of the horizontal synchronization impulses, interfering impulses and the echo impulses is carried out only after the equalization impulses have been detected. The number of horizontal synchronization impulses, interfering impulses, and echo impulses detected is used as criterion for selecting the best receiver. The invention is applicable to diversity reception installations including several television receivers, in particular, for mobile installations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.