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Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Inventor:
Shiota; Tetsuro
Address:
Takatsuki, JP
No. of patents:
4
Patents:












Patent Number Title Of Patent Date Issued
7199840 Dynamic gray scale range adjustment apparatus and method April 3, 2007
In gray-scale correction where extension to a dynamic range is performed based on a maximum value and a minimum value of a video luminance signal, sufficient correction effects cannot be obtained in some displayed images. Therefore, a histogram detecting circuit (2), a maximum value
7088058 Image display August 8, 2006
An image display device which has a display element that optically modulates an incident light for displaying an image. A lamp is a light source of the incident light to the display element. A lamp driver drives the lamp. A lamp power level calculator calculates a driving power level
6288756 Luminance correction circuit and video display monitor thereof September 11, 2001
A luminance correction circuit to correct areas of unevenness in luminance or color of a video image and smoothes gaps between correction blocks. The luminance correction circuit comprises a memory for storing correction data for correcting unevenness in luminance or color of video image
5838396 Projection type image display apparatus with circuit for correcting luminance nonuniformity November 17, 1998
In a projection type image display apparatus, the screen is divided and a memory to record luminance correction data corresponding to the divided regions is provided, and addresses of the divided regions of the screen are set by an address counter, synchronized with the input video signa










 
 
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