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Class Information
Number: 353/69
Name: Optics: image projectors > Distortion compensation
Description: Subject matter including a rectifying element in the optical path, or means to adjust an element in the optical path to offset the undesired effects of abnormalities of the film or slides or undesired effects of the screen and projector alignment.

Sub-classes under this class:

Class Number Class Name Patents
353/70 For projection axis inclined to screen 391

Patents under this class:
1 2 3 4 5 6 7 8 9 10 11 12

Patent Number Title Of Patent Date Issued
8711225 Image-capturing device and projection automatic calibration method of projection device Apr. 29, 2014
8702243 Image projection apparatus and interchangeable lens therefor Apr. 22, 2014
8702244 Multimedia player displaying projection image Apr. 22, 2014
8690337 Device and method for displaying an image on a VUI screen and also a main projection screen Apr. 8, 2014
8690348 System for adjusting image of beam projector using camera attached remote controller and method thereof Apr. 8, 2014
8690350 Image display apparatus and information processing apparatus having the same and method of controlling image display apparatus Apr. 8, 2014
8662675 Compact image offset projection lens Mar. 4, 2014
8662676 Automatic projector calibration Mar. 4, 2014
8651669 Projection apparatus that properly reduces flicker Feb. 18, 2014
8641203 Methods and systems for receiving and transmitting signals between server and projector apparatuses Feb. 4, 2014
8641204 Projector and method for registration adjustment Feb. 4, 2014
8643792 Rear projection imaging system with image warping distortion correction system and associated method Feb. 4, 2014
8625082 Display apparatus Jan. 7, 2014
8616704 Area projection system for reproducing a visual signal on a surface Dec. 31, 2013
8602565 Projected display Dec. 10, 2013
8605111 Method and apparatus for adjusting image colors of image projector Dec. 10, 2013
8587732 Projection display apparatus which enables a selected image inverting process to be performed to facilitate registration adjustment Nov. 19, 2013
8579242 Elevating mechanism for projection apparatus Nov. 12, 2013
8573780 Projection-type display apparatus and geometric distortion correcting method for correcting geometric distortion Nov. 5, 2013
8545025 Image processing apparatus, projector, image processing method, and program Oct. 1, 2013
8545026 Projector and method for correcting trapezoid distortion of projected images using the projector Oct. 1, 2013
8549418 Projected display to enhance computer device use Oct. 1, 2013
8534845 Projector and control method Sep. 17, 2013
8534844 Dynamic keystone correction Sep. 17, 2013
8534843 Image display apparatus, information processing apparatus, and methods of controlling the same Sep. 17, 2013
8529069 Projection apparatus and control method thereof Sep. 10, 2013
8529073 Display device and display module Sep. 10, 2013
8523366 Projector having projection condition control unit that performs projection condition control based on projected test image Sep. 3, 2013
8525870 Remote communication apparatus and method of estimating a distance between an imaging device and a user image-captured Sep. 3, 2013
8511838 Scanning laser projector with safety system Aug. 20, 2013
8511835 Image processing apparatus and image processing method Aug. 20, 2013
8506090 Projection system with image orientation correction and corresponding method Aug. 13, 2013
8506093 Projector, method that adjusts luminance of projected image, and program Aug. 13, 2013
8508508 Touch screen signal processing with single-point calibration Aug. 13, 2013
8500288 Rear-projection type display device for performing distortion detection and distortion correction Aug. 6, 2013
8500287 Projection unit having speckle suppression device based on piezoelectric actuating Aug. 6, 2013
8491127 Auto-focusing projector and method for automatically focusing the projector Jul. 23, 2013
8491128 System and method for projection correction by capturing projection image Jul. 23, 2013
8491129 Projector having stabilized elevation feet Jul. 23, 2013
8493430 Remote communication apparatus and method of estimating a distance between an imaging device and a user image-captured Jul. 23, 2013
8485668 3D interaction for mobile device Jul. 16, 2013
8465157 Projection type image display Jun. 18, 2013
8454171 Method for determining a video capture interval for a calibration process in a multi-projector display system Jun. 4, 2013
8451107 Imaging system for vehicle May. 28, 2013
8449122 Image marking method and apparatus May. 28, 2013
8449121 Image processing system, projector, method and computer program product May. 28, 2013
8449120 Image processing device, image display system, and image processing method May. 28, 2013
8449119 Modifying application windows based on projection surface characteristics May. 28, 2013
8449118 Device-adjacent ambiently displayed image May. 28, 2013
8439504 Automatic mode switching between single and multiple projectors May. 14, 2013

1 2 3 4 5 6 7 8 9 10 11 12

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