Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Luminance level control device










Image Number 18 for United States Patent #8130325.

A scene change detecting circuit (1) detects a scene change of video. An average luminance level operating circuit (2) calculates an average luminance level (APL) of a video signal (VD). A luminance overdrive amount calculating circuit (3) calculates a luminance overdrive amount (OD) based on the average luminance level (APL). A time-linked attenuating circuit (7) outputs a power consumption limit correction amount (PA) by attenuating the luminance overdrive amount (OD) with an elapse of time from a point in time of detecting the scene change. An adder (8) adds the power consumption limit correction amount (PA) and a reference power consumption limit value (Lp) to output the addition result as a power consumption limit amount (PL). An ABL circuit (4) calculates a luminance limit amount (BL) based on luminance limit characteristics, the average luminance level (APL) and the power consumption limit amount (PL). A luminance level control circuit (5) determines a display drive condition (BC) based on the luminance limit amount (BL). A PDP drive controller (6) drives a display panel (20) based on the video signal (VD) and the display driving condition (BC).








 
 
  Recently Added Patents
Image forming apparatus and control method therefor and storage medium
Switching power supply control with reduced harmonic frequency fluctuations
Medicine packaging machine
Compact latching mechanism for a mid-power electrical connector
Metering apparatus
Interior solar heater
Military award attachment method and device
  Randomly Featured Patents
Image forming apparatus and control method of image forming apparatus
Device for driving nails and similar fastening elements
Article for providing event handling functionality in a processor supporting different instruction sets
Methods for solid-phase nucleic acid amplification and sequencing
Interactive music composition and performance system
Scanner
Method of enhancing measurement of stress in glass
Decoder circuit
Method for forming trenches on a surface of a semiconductor substrate
Lift chair