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Class Information
Number: 348/658
Name: Television > Image signal processing circuitry specific to television > Color balance or temperature (e.g., white balance) > Receiver type > Including feedback control > Including optical sensor to observe display (e.g., crt)
Description: Subject matter wherein the sensor detects the light output of the display.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7489337 |
Method and system for synchronizing colorimetric rendering of a juxtaposition of display surfaces |
Feb. 10, 2009 |
| 7218358 |
Method and apparatus for calibrating color temperature of color display devices |
May. 15, 2007 |
| 7050121 |
Method and device for compensating picture quality of projection type display |
May. 23, 2006 |
| 6958785 |
Method and apparatus for determining and correcting for illumination variations in a digital projector |
Oct. 25, 2005 |
| 6912017 |
Display device for displaying digital input image data using different filter segments for the lower and higher order bits |
Jun. 28, 2005 |
| 6909463 |
Camera having verification display and white-compensator and imaging method |
Jun. 21, 2005 |
| 6744464 |
Apparatus and method for real-time testing/adjusting of television picture colors |
Jun. 1, 2004 |
| 6636274 |
Image display device |
Oct. 21, 2003 |
| 6633341 |
Luminance correction system used in a vision system |
Oct. 14, 2003 |
| 6483537 |
Apparatus and method for analyzing projected images, singly and for array projection applications |
Nov. 19, 2002 |
| 6356301 |
Method and apparatus for landing adjustment jig calibration check |
Mar. 12, 2002 |
| 6061102 |
Automatic shading in an LCLV projector |
May. 9, 2000 |
| 5926562 |
Image processing method using reference values to determine exposure state |
Jul. 20, 1999 |
| 5793441 |
Method and apparatus for measuring illumination uniformity of a liquid crystal light valve projector |
Aug. 11, 1998 |
| 5724071 |
Depth image display on a CRT |
Mar. 3, 1998 |
| 5689311 |
After image reducer |
Nov. 18, 1997 |
| 5635993 |
Apparatus and method for controlling white balance of a cathode ray tube projector |
Jun. 3, 1997 |
| 5512961 |
Method and system of achieving accurate white point setting of a CRT display |
Apr. 30, 1996 |
| 5510851 |
Method and apparatus for dynamic purity correction |
Apr. 23, 1996 |
| 5452019 |
Projected image displaying apparatus and a method of correcting color unevenness therein |
Sep. 19, 1995 |
| 5315378 |
Gamma correction and white balance adjustment method and apparatus for projection display |
May. 24, 1994 |
| 5258828 |
Color CRT drive apparatus having automatic white balance adjusting circuit and CRT display |
Nov. 2, 1993 |
| 5231481 |
Projection display device with negative feedback loop to correct all the faults of the projected image |
Jul. 27, 1993 |
| 5181103 |
White balance adjusting system for a color television system |
Jan. 19, 1993 |
| 4962418 |
Color picture display apparatus |
Oct. 9, 1990 |
| 4930004 |
Automatic level adjusting system for a television receiver |
May. 29, 1990 |
| 4746970 |
White uniformity correcting apparatus for a three-color display wherein correction signals are stored in a memory |
May. 24, 1988 |
| 4742387 |
Method and apparatus for automatically establishing a color balance of a color television monitor including an ambient light sensing and data compensating function |
May. 3, 1988 |
| 4700218 |
Automated system for adjustment of the white balance in a signal displayed on the screen of a color cathode ray tube |
Oct. 13, 1987 |
| 4160264 |
Matrix compensator for color video signals |
Jul. 3, 1979 |
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