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Class 348/189 - Testing of image reproducer


Subclass of Class 348 - Television
Definition: Subject matter including a means for testing a device that
No. of patents: 265
Last issue date: 03/27/2012


1              
NumberTitleIssue Date
8144200Testing apparatus of liquid crystal display module
Disclosed is a technique for testing liquid crystal display modules which are driven in various image formats or drive frequencies by using one scanning converter, a testing apparatus of a liquid crystal display module, including: a scan box controller configured to...
03/27/2012
8094196Video matching device, method, and program
A matched state detection unit (33) of a video matching device (100) detects a reference video frame, of the respective video frames of a reference video (1) and degraded video (2B), which is in a matched state in which it is spatially an...
01/10/2012
8085303Animated display calibration method and apparatus
A method for adjusting properties of a display includes displaying a first pluge image on the display to a user, wherein the display includes a plurality of locations, wherein the first pluge image comprises a first plurality of output values associated with the plu...
12/27/2011
8072494Device and method for automatically testing display device
A method for automatically testing display device. The method includes steps of: capturing an image; acquiring a horizontal strip of a to-be-tested image which includes at least a portion of each of the color interval column of the image; comparing a standard deviat...
12/06/2011
8045006Method and apparatus for determining the best blending of overlapped portions of projected images
A best blending function from among a plurality of blending functions is determined. Each of the plurality of blending functions smoothes an overlap region of at least two projected images. The overlap image is captured and a processing unit analyzes the stored over...
10/25/2011
7999852Test or calibration of displayed greyscales
Testing a display involves display of a series of test patterns, each at a different luminance or color, and with a predetermined minimum difference of luminance or color from their background, each pattern being unpredictable to a user, and determining if the user ...
08/16/2011
7911498Compensation device for non-uniform regions in flat panel display and method thereof
Disclosed is a digital signal processing architecture for a flat panel display having non-uniform regions, which is not by means of materials, optical films or fabrication processes. Therefore, the manufacturing cost and complexity of the flat panel display are not ...
03/22/2011
7817184Methods and apparatus to test receivers
Methods of testing receiver video fidelity are disclosed. One example method includes producing a video test signal; coupling the video test signal into an input of the receiver, wherein the video test signal is configured to cause a decoder to output a step functio...
10/19/2010
7808526Methods and systems for example-based TV color calibration
An example-based method and system for electronic display color calibration is provided. By comparing the colors of commonly available objects with a color database under a controlled lighting condition, the user adjusts the gain and offset parameters of the Red, Gr...
10/05/2010
7796156Organic electroluminescent display panel testing apparatus and method thereof
An apparatus for testing an organic electroluminescent display panel having a plurality of data and scan lines comprises a detecting control circuit, a gate de-multiplexer and a source de-multiplexer. The detecting control circuit generates a gate test signal and a ...
09/14/2010
7760231Animated display calibration method and apparatus
A method for adjusting properties of a display includes displaying a first pluge image on the display to a user, wherein the display includes a plurality of locations, wherein the first pluge image comprises a first plurality of output values associated with the plu...
07/20/2010
7538791Color monitor white chromaticity measuring device
The white chromaticity, in which the illumination environment is considered, is measured for each individual color monitor (100). A reference body (Q), comprising a perfect diffuser, is applied on the screen of the color monitor (100). By a test patter...
05/26/2009
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
7405747Extended K2T measurement of video
K2T measurement of video signals, regardless of video format, is determined by generating a graticule using an algorithm having a single variable that is a function of the video format for the particular video signal. The graticule is set to a normalized value of on...
07/29/2008
7394483Display evaluation method and apparatus
A measurement pattern is moved on a display, and an image of the measurement pattern is captured by making a visual field of an image sensor follow the scroll of the measurement pattern. On the basis of the captured image, a motion picture response curve is obtained...
07/01/2008
7388623Liquid crystal display device and inspection method
An OSD display unit generates test pattern data to spread image patterns stored in a storage unit as digital font data for OSD display so as to match the number of pixels of a liquid crystal panel and sends the test pattern data to a panel processor for display on t...
06/17/2008
7388601System and method for the automated, remote diagnostic of the operation of a digital video recording network
A method and a system for automatically performing diagnostics of various operational parameters of digital video recorders, cameras, peripheral and associated components encompassing a video system, are provided. Script files are provided including diagnostic instr...
06/17/2008
7379124Center convergence optimization in a projection display apparatus
Progressive rounding error and convergence error encountered due to multiple use of a center correction adjustment of an image of a video projection display is reduced by calculating a 3×3 matrix for a moved color signal where the non center matrix values represent...
05/27/2008
7369159Method and apparatus for dynamically testing video equipment
A method and apparatus are presented for dynamically testing video equipment. A test pattern utilizes a presentation of alternating pixels and lines, along with features of the electronic video/graphics generator in which it is present to effect a close approximatio...
05/06/2008
7359575Dynamic warp map generation system and method
Dynamic warp map generation system and corresponding method are disclosed. A compactor obtains spatial transformation parameters along with geometric and optical distortion parameters and combines them to form hybrid grid data in a hybrid vector space. This vector s...
04/15/2008
7342603Image output test system and method and device thereof
The present invention is to provide an image output test system, which is built in between an image output device and an image output test device, in which the image output test device can receive a first video signal, convert the first video signal into a second vi...
03/11/2008
7333130Apparatus and method of re-adjusting convergence of a projection TV
A method and an apparatus of re-adjusting convergence of a projection TV are disclosed. The apparatus includes a display device on which an image is projected and at least one light-sensing element (101) being provided around the display device. The light-sen...
02/19/2008
7317453Video graphics array color signal generator
A video graphics array color signal generator is provided. The signal generator includes an FPGA (field program gate array) device (1), a PROM (programmable read only memory) (2), a PLL (phase locked loop) circuit (3), a D/A (digital/analog) con...
01/08/2008
7312815Method and apparatus for color calibration
The present invention provides a method and an apparatus for color calibration for calibrating an input color. A target color represented by a first coordinate pair (X1, Y1). An input color, which is to be calibrated, is represented by a second coordin...
12/25/2007
7289169Storage of projected presentations
A method and system for capturing real-time digital image data that is in rasterized form. A digital source sends rasterized data to a storage device, which passes the rasterized data to a display device. The rasterized data is then converted into a page format, suc...
10/30/2007
7268837Method 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 ...
09/11/2007
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
7266240Image processing system, projector, computer-readable medium, and image processing method
To provide an image processing system enabling association of the coordinates of a sensed projected image in a sensing area with the coordinates of the spatial light modulator, a projector is formed of: an image projecting section which projects calibration images; ...
09/04/2007
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
7233324Display device, drive circuit, testing device, and recording medium
A display device is provided with a display panel, and a source driver and a gate driver both for driving the display panel and includes a nonvolatile memory for storing a test sequence representing the procedures for a display test and testing patterns to be displa...
06/19/2007
7227593Apparatus for preventing auto-convergence error in projection television receiver
Disclosed is a video display an auto-convergence error in a projection television receiver (TV) capable of preventing generation of an error when an auto-convergence is performed. The apparatus includes a screen for displaying an image signal, first to eighth sensin...
06/05/2007
7218418Digital de-screening of documents
A method and a system for de-screening an image signal. The system comprises a filter bank, a control module and a blend module. The filter bank filters the image signal and produces a set of filter output signals. The control module generates at least one control s...
05/15/2007
7215362Auto-calibration of multi-projector systems
The method for automatically calibrating a multi-projector system with at least two projectors, a digital camera and a control unit for controlling the projectors and the camera is performed according to the following steps: produc...
05/08/2007
7212024Inspection apparatus for liquid crystal drive substrates
The object of the present invention is to provide an inspection apparatus for liquid crystal drive substrates that improves the inspection accuracy of liquid crystal drive substrates, judges defect type more accurately, and does not cause a decrease in throughput. I...
05/01/2007
7196644Decoupling of analog input and digital output
A signal processing system includes a receiver for receiving an analog signal. The system also includes an analog-to-digital converter (ADC) coupled to the receiver. At each of a series of time intervals, the ADC outputs sequential digital codes. Each digital code c...
03/27/2007
7196741Automatic image convergence for projection television systems
Systems and methods that facilitate automatic convergence and geometry alignment in projection systems such as a PTV. The automatic convergence system (ACS) preferably includes a CCD camera mounted inside the PTV and focused on the entire inside of a projection scre...
03/27/2007
7180477Portable automatic test instrument for video displays and generators
Portable automatic video device tester including a programmable video generator and analyzer, a signal conditioner/switching device, a command module, a portable computer (laptop) with an integral monitor and a portable VXI chassis for housing the video generator an...
02/20/2007
7180530Visual display testing, optimization and harmonization method and system
A method and system for automatically testing visual displays and automatically optimizing the voltage settings for each visual display being tested by harmonizing and tailoring the voltage settings applied to the display and automatically setting into memory the co...
02/20/2007
7173638Monitor
A monitor is disclosed, in which R/G/B signals provided from a video source are compensated to adapt to the color reproduction of the monitor, thereby obtaining the best picture quality. The monitor includes a video source for outputting one video signal, a color co...
02/06/2007
7170550Television data management system
Information about various adjustments made to TVs during assembly is entered into a database after each adjustment, to facilitate monitoring and reporting of the assembly process, so that corrective action when appropriate can be taken more quickly. ...
01/30/2007
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