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Class Information
Number: 348/806
Name: Television > Video display > Cathode-ray tube > With distortion, alignment or focus
Description: Subject matter wherein circuitry is provided to regulate electron beam size, electron beam or picture position, or picture irregularities related to electron beam characteristics.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7583325 |
Projection systems and processes for generating images with increased brightness uniformity |
Sep. 1, 2009 |
| 7561754 |
Image transformation apparatus for image transformation of projected image by preventing distortion |
Jul. 14, 2009 |
| 7525567 |
Recording a stereoscopic image of a wide field of view |
Apr. 28, 2009 |
| 7499112 |
Method and apparatus for image correction |
Mar. 3, 2009 |
| 7475995 |
Projector trapezoidal correction |
Jan. 13, 2009 |
| 7460185 |
Method and apparatus for automatically correcting image misalignment arising in a rear-projection LCD television display |
Dec. 2, 2008 |
| 7453454 |
Image display system and method |
Nov. 18, 2008 |
| 7452084 |
Projector with a device for measuring angle of inclination |
Nov. 18, 2008 |
| 7408595 |
Method and apparatus for image correction |
Aug. 5, 2008 |
| 7379614 |
Method for providing services on online geometric correction using GCP chips |
May. 27, 2008 |
| 7372509 |
Focus voltage amplifier |
May. 13, 2008 |
| 7293881 |
Video projector for dome screen |
Nov. 13, 2007 |
| 7268837 |
Method and system for automated convergence and focus verification of projected images |
Sep. 11, 2007 |
| 7262563 |
Method and apparatus for providing a dynamic rotational alignment of a cathode ray tube raster |
Aug. 28, 2007 |
| 7252386 |
Keystone distortion correction of a projector |
Aug. 7, 2007 |
| 7227593 |
Apparatus for preventing auto-convergence error in projection television receiver |
Jun. 5, 2007 |
| 7227592 |
Self-correcting rear projection television |
Jun. 5, 2007 |
| 7215362 |
Auto-calibration of multi-projector systems |
May. 8, 2007 |
| 7204596 |
Projector with tilt angle measuring device |
Apr. 17, 2007 |
| 7187345 |
Image forming method and charged particle beam apparatus |
Mar. 6, 2007 |
| 7158193 |
Image misconvergence correction apparatus for less switching noise influence |
Jan. 2, 2007 |
| 7131732 |
Projector apparatus, inclination angle obtaining method, and projection image correction method |
Nov. 7, 2006 |
| 7129655 |
Image distortion correction apparatus capable of correcting misconvergence using an amplifier |
Oct. 31, 2006 |
| 7093940 |
Adjustment in the amount of projected image distortion correction |
Aug. 22, 2006 |
| 7090361 |
Bundled light based alignment and maintenance tool for projection systems |
Aug. 15, 2006 |
| 7092045 |
Projection-type display apparatus |
Aug. 15, 2006 |
| 7071636 |
Scanning circuit of electron tube displays |
Jul. 4, 2006 |
| 7061552 |
Method and apparatus to perform automatic digital convergence |
Jun. 13, 2006 |
| 7061192 |
Switching-type vertical deflection output circuit |
Jun. 13, 2006 |
| 7053966 |
Adjusting convergence apparatus and method |
May. 30, 2006 |
| 7014323 |
Image processing system, projector, program, information storage medium and image processing method |
Mar. 21, 2006 |
| 6995810 |
Method and system for automated convergence and focus verification of projected images |
Feb. 7, 2006 |
| 6989872 |
Image distortion correcting device and image distortion correcting method |
Jan. 24, 2006 |
| 6982766 |
Digital raster correction |
Jan. 3, 2006 |
| 6979944 |
Display device shared between digital-to-analog converter for outputting convergence signal and dynamic focus signal |
Dec. 27, 2005 |
| 6977693 |
Networked video projector apparatus and method of projecting a video frame on a video projector |
Dec. 20, 2005 |
| 6956625 |
Image processing apparatus and method for realizing panorama/waterglass functions |
Oct. 18, 2005 |
| 6905213 |
Projection apparatus and projection-type image display apparatus |
Jun. 14, 2005 |
| 6894731 |
Raster distortion correction arrangement |
May. 17, 2005 |
| 6879303 |
Aperture grill type display device and method for controlling luminance |
Apr. 12, 2005 |
| 6879352 |
Convergence measuring apparatus and method thereof |
Apr. 12, 2005 |
| 6853157 |
Image distortion compensating apparatus with low switching delay |
Feb. 8, 2005 |
| 6831427 |
Vertical deflection apparatus |
Dec. 14, 2004 |
| 6831415 |
Circuit and method of controlling vertical and horizontal screen sizes of cathode ray tube monitor |
Dec. 14, 2004 |
| 6814448 |
Image projection and display device |
Nov. 9, 2004 |
| 6784947 |
Image display apparatus and method of correcting image on image display apparatus against inclination by terrestrial magnetism |
Aug. 31, 2004 |
| RE38574 |
Method and apparatus for reducing visibility of damping wires in aperture grill display tubes |
Aug. 31, 2004 |
| 6753907 |
Method and apparatus for automatic keystone correction |
Jun. 22, 2004 |
| 6750921 |
Projection video display with photo transistor sensors |
Jun. 15, 2004 |
| 6741296 |
Multi-hemisphere color CRT |
May. 25, 2004 |
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