Patent · US Expired

Method for power level control of a display and apparatus for carrying out the method

US6674429B1 · kind B1 · utility

9Cited by

6References

6Claims

0Family size

Assignee

Thomson Licensing · FR

Inventors

Carlos Correa · Villingen-Schwenningen, DE
Sebastien Weitbruch · Kirchberg, DE
Rainer Zwing · Villingen-Schwenningen, DE

Key dates

Filing date	Aug 1, 2001
Grant date	Jan 6, 2004
Priority date	—
Expiry date	Aug 1, 2021

Classification

Technology area (CPC G)Physics
CPC primaryG09G2360/16
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

A method for power level control in a Plasma Display Panel with which the Peak White Enhancement Factor can be increased. The method includes the provision of a set of power level modes for the sub-field coding. To each power level mode a characteristic sub-field organization belongs. The sub-field organization is variable in respect to one or more of the following characteristics:the number of sub-fieldsthe sub-field typethe sub-field positioningthe sub-field weightthe sub-field pre-scalinga factor for the sub-field weights which is used to vary the amount of small pulses generated during each sub-field.The method includes the steps of determining a value which is characteristic for the power level of a video picture and selecting a corresponding power level mode for sub-field coding.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.