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
Driving circuit of light emitting diode
Classroom desk
Method for producing aromatic and heteroaromatic carboxylic acids, carboxylic acid esters and carboxylic acid amides
Automated tire inspections utilizing conductive filaments
Direct memory access (DMA) address translation between peer-to-peer input/output (I/O) devices
Determining a route advertisement in a reactive routing environment
Plug-in load control device
  Randomly Featured Patents
Electroacoustic transducer
Process for gas phase polymerization of vinyl chloride
Housing for an airbag module
High density EEPROM array using self-aligned control gate and floating gate for both access transistor and memory cell and method of operating same
CPU core voltage supply circuit
Antifungal agent
System for the analysis of sample liquids
Method of partially embedding non-woven fiber mat to reinforcing fibers impregnated with a thermoplastic resin and composition therefrom
Enhanced protection of semiconductors with dual surface seal
Recording medium, reproduction apparatus, recording method, program, and reproduction method