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Class 348/191 - Display photometry


Subclass of Class 348 - Television
Definition: Subject matter including a means for measuring and displaying
No. of patents: 96
Last issue date: 05/31/2011


1      
NumberTitleIssue Date
7952610Information processing apparatus, information processing method, storage medium, and program
An information processing apparatus includes a calculation unit and a conversion unit. A shot of an image displayed on a display under evaluation is taken, and first and second areas are defined in a resultant captured image. The calculation unit performs a calculat...
05/31/2011
7889235Liquid crystal television adjustment system, liquid crystal display unit adjustment system, and liquid crystal display unit
A PC 40 outputs a picture signal for a white color to a TV 100, and generates chromaticity information by measuring luminance values of respective RGB color components from a picture displayed on the TV 100, thereby determining whether the chrom...
02/15/2011
7420591Optical detector of projection television
An optical detector is provided. The optical detector allows an auto-convergence control to be effectively made by cutting off external light incident to an optical sensor for use in the auto-convergence of a projection TV. The optical detector includes optical sens...
09/02/2008
7391514Colorimeter
A calorimeter for measuring a color of light includes a color sensing device, a suspension means and a counterweight. The suspension means suspends the color sensing device in an operative relationship relative to a color producing device, while the counterweight is...
06/24/2008
7372571Color sensing apparatus
A colorimeter method and apparatus is described. The colorimeter includes a plurality of sensors/filter systems with non overlapping spectral responses, adequate for providing data capable of translation into standard coordinates system such as, CIE XYZ, CIE L*a*b*,...
05/13/2008
7365770Video signal level display device
The present invention reduces a burden on an observer. A video signal level display device includes setting sections (24, 25, 26) for setting maximum effective values corresponding to R, G, and B components, respectively, of an RGB component signal, calculati...
04/29/2008
7339595Method and system for improved internet color
The present invention provides a technique for providing color corrected images to a user over a network. In particular, the present invention allows multiple image providers to provide color corrected images to a user when the user's computer and its associated dev...
03/04/2008
7317520Method and apparatus for measuring brightness
An apparatus for measuring brightness transmitted by a light-emitting display unit of a laser telescope and observed by the user's eyes comprises a focusing unit (11), a sensor unit (12), a processing unit (13) and a display unit (14). A ...
01/08/2008
7268913Display measuring method and profile generating method
In order to stabilize a displayed color and to attenuate printing when measuring a color patch for preparing a color conversion profile, an accurate measurement is obtained by waiting for a certain time, repeating the measurement until measurements settle down or us...
09/11/2007
7265778Visual display characterization
A method of characterizing a display having a plurality of color channels includes the steps of visually characterizing the nonlinearities of the display; determining luminance ratios of the color channels using heterochromatic photometry; determining the chromatici...
09/04/2007
7235779Night vision-weighted irradiance testing
A self-contained, military usage compatible, stabilized illumination calibration system and method of using same to enable in-the-field accurate determination of the low-level light falling on the surface of a night vision apparatus resolution chart and attending ad...
06/26/2007
7234863Apparatus for measurement optical characteristic of a display panel
An ambient temperature control apparatus used for measuring ambient temperature. The apparatus has a bottom plate, a panel fitting apparatus, an external mask, and a temperature control device. The panel fitting apparatus is disposed on the bottom plate and is suita...
06/26/2007
7233370Method for correcting for distortion of projected image, program for correcting image distortion, and projection-type image display device
An image distortion correction method is provided which is capable of correcting for distortion of a projected image by designating an arbitrary correction point by using a simple and easy operation without independently providing a display device and/or a pointing ...
06/19/2007
7218358Method and apparatus for calibrating color temperature of color display devices
A method and apparatus for calibrating color temperature of color display devices aims to calibrate output bases of RGB three original color lights of a color display device so that different color display devices can radiate the same color temperature in the same c...
05/15/2007
7193662Projector having alignment optics and electronics
A projector employing a linear array of light-emitting sources forms a super pixel in the form of a plurality of beams that are focused onto scanning optics that cause the beams to move across a viewing surface on a first axis for defining image lines along the firs...
03/20/2007
7167197Apparatus and method to evaluate an illuminated panel
An apparatus to evaluate an illuminated panel comprises a camera to acquire a real-time digital color image of the illuminated panel and a stored digital color image of a standard illuminated panel. A monitor is provided to alternately display the real-time image an...
01/23/2007
7158142Display contrast adjustment method and device having display contrast adjustment function
An information processing apparatus controls display contrast of a display screen based on a stored display contrast value. The information processing apparatus includes a display screen, an input unit for inputting data, a storage unit for storing a display contras...
01/02/2007
7148960Method and device for non-destructive analysis of perforations in a material
Method for fabricating and inspecting small holes in a material are disclosed. The method includes directing light onto the material and through the holes formed in the material, and then collecting the light passing through the holes in the material onto a detector...
12/12/2006
7136056Image quality analysis method and system for a display device
An image quality analysis method and an image quality analysis system for a display device are provided. The image quality analysis method and image quality analysis system provides a quantitative determination of image quality for display devices, thereby providing...
11/14/2006
7106342Method of controlling brightness of user-selected area for image display device
A method of controlling brightness of a user-selected area on a monitor screen is disclosed. First, a starting point of a topmost line of a displayed image is determined as a new reference point. Then a line pattern being included in one of image lines of the displa...
09/12/2006
7092008Remote color characterization for delivery of high fidelity images
The present invention provides a technique for providing color corrected images to a user over a network. The user's computer and its associated devices may be remotely calibrated and or characterized and the data made available over the network to permit multiple i...
08/15/2006
7090361Bundled light based alignment and maintenance tool for projection systems
The present invention relates to projection systems, more particularly to a method for visualising test pattern grids in such a projection system. An array of adjustable, directed light sources is described, which is to be used as a test pattern generator for...
08/15/2006
7072502Alternating phase-shift mask inspection method and apparatus
A reticle inspection system and method for complete and fast inspection of phase shift mask reticles, both for incoming inspection and for periodic and pre-exposure inspection tool, is employable by facilities such as mask shops as an inspection tool compatible to t...
07/04/2006
7068302Method for camera calibration and quality testing
A method for testing cameras includes positioning a camera such that an image of a target is displayed on a monitor within at least one default image parameter. The method further includes engaging a dimming condition of a light source from the camera, thereby gener...
06/27/2006
7064831Colorimeter with single cable low impact mounting system
A colorimeter that uses its flexible power/electronic cable as a mounting mechanism is disclosed. The colorimeter can be placed against a target screen, suspended by the cable, where the cable in turn drapes over the top of the display cabinet. A slidable weight can...
06/20/2006
7012633Color calibration method for imaging color measurement device
A color calibration method for an imaging color measurement device utilizes a detector array, a plurality of optical elements, and multiple instances of irradiation of the detector array for a single measurement. A flat-fielding correction error correction matrix of...
03/14/2006
6995810Method and system for automated convergence and focus verification of projected images
A method and system that objectively measures the convergence and focus of a 2 or 3 spatial light modulator (SLM) projection display. The system uses five (5) CCD cameras and a frame grabber to store red, green, and blue (R-G-B) data from selected pixels located in ...
02/07/2006
6958785Method and apparatus for determining and correcting for illumination variations in a digital projector
The need is met according to the present invention by providing a method of correcting pixel by pixel variations in a display, the method including the steps of creating a defect map of pixel intensity offsets for the display; correcting an input signal according to...
10/25/2005
6950109Multi-spectral color correction
A system and method for performing color correction based on physical measurements (or estimations) of color component spectra (e.g. red, green, blue color component spectra). A color correction system may comprise a spectrum sensing device, a color calibration proc...
09/27/2005
6933967Color reference system for display monitor
A color calibration system includes a visual display terminal (VDT), a color calibration sensor optically coupled to the VDT, and a computer processing unit (CPU) electrically coupled to the VDT and the color calibration sensor. The VDT has a display screen and a pl...
08/23/2005
6927378Apparatus and method for monitoring of cathode ray tube panel manufacturing to reduce CRT cost and improve performance and yield
A monitoring apparatus and method for measuring light output gradient of a faceplate panel includes a top plate having a center detector and a plurality of corner detectors mounted along a major surface thereof. Lenses are optically coupled to a respective detector,...
08/09/2005
6909468Positional difference correcting apparatus between two-route videos
Received videos through A and B routes are inputted in first and second variable devices and then delayed by a first and a second frame memory by one frame to be inputted in a comparator. Alternatively, these signals A and B are further delayed by one frame by third...
06/21/2005
6885369Method and apparatus for acquiring luminance information and for evaluating the quality of a display device image
A method for evaluating the quality of an image, for extracting a luminance gradient displayed on a display device and for evaluating local luminance unevenness caused therein. The method includes the steps of: subdividing the image to be used as an evaluation objec...
04/26/2005
6862029Color display system
Disclosed is a method and apparatus for controlling color displayed on a color monitor. The method includes, in one embodiment, the steps of: activating a first color scheme on the monitor; responsive to the activating of the first color scheme, measuring a first co...
03/01/2005
6850245DISPLAY CHARACTERISTICS RECOGNITION APPARATUS, DISPLAY CHARACTERISTICS RECOGNITION PROGRAM STORAGE MEDIUM, COMPUTER SYSTEM, DISPLAY CHARACTERISTICS ADJUSTING APPARATUS AND DISPLAY CHARACTERISTICS ADJUSTING PROGRAM STORAGE MEDIUM
A display characteristics recognition apparatus has a color chart data output unit outputting a color chart data representative of a predetermined color chart to a display unit, a color name input unit for entering a name of a color of the color chart, and a display...
02/01/2005
6771307Image calibration device and image calibration method
In an image calibration device 10, a calibration pattern is projected onto a screen 4 from each projector 3 under control of a personal computer or other calibration device 10a, pictures are taken by a digital camera or other image...
08/03/2004
6753907Method and apparatus for automatic keystone correction
The present invention provides automatic correction of any distortions produced when computer projection displays are misaligned with respect to the projection surface (such as keystoning). Although sophisticated LCD projectors now offer partial solutions to this pr...
06/22/2004
6714670Methods and apparatuses to determine the state of elements
A methods and apparatuses are disclosed for determining the state of elements in an image. The elements can be arranged in any regular pattern, such as a matrix of LCD display elements. The state of the elements is determined by extracting a characteristic of the el...
03/30/2004
6671003Automated calibration in a projection display apparatus
A method of operating a photo sensor in a projection display device comprises the steps of, illuminating the sensor with a projected image. Detecting a signal from the sensor responsive to the illumination by the projected image. Changing a threshold valu...
12/30/2003
6618076Method and apparatus for calibrating projector-camera system
The present invention enables a user to automatically calibrate a projector-camera system to recover the mapping from a given point in the source (pre-projection) image and its corresponding point in the camera image, and vice versa. One or more calibrati...
09/09/2003
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