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| Number | Title | Issue Date |
| 7999850 | Video signal generator A video signal generator, employing a multi-output amplifier and a video signal connector, is physically connected to a device under test to eliminate the use of signal cables, to solve the impedance matching issue, and to reduce noise from the signal cables' exposu... | 08/16/2011 |
| 7821534 | Method and apparatus for dynamically testing video equipment A method and apparatus are presented for dynamically testing video equipment. One or more test patterns utilize different regions of video signal characteristics. Adjustment is made to the video characteristics of a region until a perceived parameter of the region m... | 10/26/2010 |
| 7764305 | Method and apparatus for generating a reference television signal CW lock is conducted with less manual operation. A first input 22 receives a black burst (BB) signal from a key TV station. A second input 30 receives a continuous wave (CW) signal having an accurate, known frequency. A phase adjust signal generator | 07/27/2010 |
| 7489336 | Methods and apparatus for detecting and adjusting over-scanned images A method for adjusting images displayed on a television set, the television set being coupled to receive image information from an image-generating electronic device. The method includes displaying on the television set, using test image information from the image-g... | 02/10/2009 |
| 7394483 | Display 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 |
| 7391434 | Video bit stream test The present invention is a method for MPEG compliance testing that designs test bit streams such that every frame of the expected decoded video is known. The test bit stream is generated, decoded and stored as an expected output decoded video. The test bit stream is... | 06/24/2008 |
| 7369159 | Method 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 |
| 7336298 | Video signal level monitoring apparatus A video signal level monitoring apparatus which monitors the level of a video signal, said apparatus comprises means for inputting a first color difference component (Cb) and a second color difference component (Cr) of a component video signal, means for inputting a... | 02/26/2008 |
| 7333154 | Method and apparatus for optimizing the presentation of audio visual works A technique for managing the production, post-production and distribution of audio-visual projects permits accurate management of production values and thereby allows accurate and measurable reproduction and control. Test signal data is used to assist the operator i... | 02/19/2008 |
| 7317453 | Video 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 |
| 7298396 | Apparatus and method for monitoring transmission systems using embedded test signals A monitoring system for an RF transmission system, such as a multi-channel television broadcasting antenna feed system, gathers data about the physical and electrical condition of the RF transmission system in real time. The system can detect and localize deteriorat... | 11/20/2007 |
| 7292164 | Enhanced data converters using compression and decompression An enhancement that reduces the digital interface rate of analog-to-digital (A/D) and digital-to-analog (D/A) converters through the use of compression and decompression is described. Improved A/D converters compressing a sampled version of an A/D converter's analog... | 11/06/2007 |
| 7288753 | OLED display with composite photosensor An OLED display and photo-sensor is described, comprising: a substrate; a composite light sensor made up of a plurality of individual thin-film light sensitive elements located over the substrate and connected in parallel to provide a common signal; a first transpar... | 10/30/2007 |
| 7268913 | Display 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 |
| 7262816 | Rear projection imaging system with image warping distortion correction system and associated method A rear projection imaging system with an image warping distortion correction system using a camera and processing unit to generate a warping map that corrects for image distortion. The warping map is generated in an iterative process by displaying a known pattern on... | 08/28/2007 |
| 7253792 | Video generation and capture techniques Method for controlling stroke video generation components by creating a program to command the video generation components to provide video signals and integrating high level software constructs into the program. Integration of the high level software constructs int... | 08/07/2007 |
| 7248287 | Method for examining shooting direction of camera apparatus, device thereof and structure for installing sensor In a test method in which an image photographed by a camera apparatus 1 attached to a body of a vehicle is displayed on a display device 17 and an examiner examines compliance or non-compliance of the shooting direction of the camera apparatus 1... | 07/24/2007 |
| 7242422 | Circuit and method for decoding color code of a 3D display A circuit and a method for decoding a color code of a 3D display. The color code decoding circuit is built into an on-screen display of a circuit in a display. The color code decoding circuit has several comparators, several recording buffers, a register, a first co... | 07/10/2007 |
| 7234863 | Apparatus 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 |
| 7233349 | Video timing display indicator A timing alignment or offset display shows the relationship between a reference signal and a test signal, in particular two analog or digital video signals. Timing extraction circuits derive a lower frequency signal synchronized to horizontal lines and a higher freq... | 06/19/2007 |
| 7227593 | Apparatus 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 |
| 7215362 | Auto-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 |
| 7197452 | Multimodal quality assessment The quality of audiovisual material is assessed by measuring the audio an video quality and computing from these a combined measure. Using a parameter indicative of the degree of motion represented by the video, the computation employs one of a plurality of algorith... | 03/27/2007 |
| 7180530 | Visual 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 |
| 7180436 | Apparatus and method for auto calibration of display device An apparatus for auto calibration of a display device, the apparatus including a signal generating unit for generating predetermined digital patterns, converting the digital patterns into R, G, B and Y, U, V color signals, converting the color signals into analog pa... | 02/20/2007 |
| 7180477 | Portable 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 |
| 7180538 | Digital television test stream generator, method thereof, and test stream recording medium using the same A DTV receiver test stream generator which prevents discontinuity phenomenon of a video and an audio, a method for generating the DTV receiver test stream, and a recording medium where the DTV test stream having no discontinuity phenomenon is recorded. To this end, ... | 02/20/2007 |
| 7164417 | Dynamic controller for active-matrix displays A dynamic controller for a light emitting active-matrix display, the display being responsive to code values for producing a light output, including: photosensor located on the display for sensing the light output from the display and generating a feedback signal re... | 01/16/2007 |
| 7162731 | Radio frequency characterization of cable plant and corresponding calibration of communication equipment communicating via the cable plant A switch router and one or more gateways incorporating a diagnostic and calibration system that performs RF characterization of an underlying cable plant. The switch router is connected at a point of insertion or point of distribution and each gateway is located dow... | 01/09/2007 |
| 7151559 | Reception performance measuring apparatus for television signal When a TS (Transport Stream) generator generates a TS, the TS is modulated by a signal modulator and outputted to a tuner set. In the tuner set, various noises generated by a noise source are added to an input signal, reception processing is performed, and then the ... | 12/19/2006 |
| 7149954 | Method and system for programmable field statistic for picture cyclic redundancy check (CRC) Provided is a system and method for performing CRC analysis in a video test bench. An exemplary system includes a memory configured for storing a required number representative of the data fields to be analyzed. A module is coupled at least indirectly to the memory ... | 12/12/2006 |
| 7142567 | Rate generator in a video on demand system having multiple constant bit rate data A rate generator for generating a plurality of different frequencies that represent video requests in a video on demand (VOD) system. The rate generator comprises a plurality of parallel groups, each group comprising a phase accumulator module having a plurality of ... | 11/28/2006 |
| 7139530 | Method and apparatus for calibrating a reference oscillator A method and apparatus for calibrating a reference oscillator and use of a calibrated reference oscillator is disclosed. To gain cost reduction advantages, a less accurate reference oscillator is utilized in a wireless communication device. The cost benefit is gaine... | 11/21/2006 |
| 7136157 | Method and apparatus for testing image sensors Methods and apparatuses for testing image sensors are disclosed. Desirable apparatuses of the present invention include image sensor testing devices comprising a digital light projection system capable of projecting static or dynamic images onto an image sensing dev... | 11/14/2006 |
| 7136076 | System and method for providing a wide aspect ratio flat panel display monitor independent white-balance adjustment and gamma correction capabilities A system and method are described herein for controlling the white balance and providing gamma correction without compromising gray-scale dynamic range in a flat panel liquid crystal display (LCD). According to one embodiment of the present invention, the flat panel... | 11/14/2006 |
| 7136092 | Method and apparatus for testing video chroma quantization A method for testing the chroma performance of a digital rendering integrated circuit includes generating a video test signal where the video test signal has a constant luma amplitude, constant chroma amplitude, and varying chroma phase. The method then continues by... | 11/14/2006 |
| 7133148 | Digital camera for image device calibration The invention is directed to an apparatus for calibrating an output of an image output device, comprising an image input device configured to image an output of the image output device; and a test pattern generator having an output of a dynamic test patch area and a... | 11/07/2006 |
| 7103800 | Display device, receiver, and test apparatus A display device comprises an inspection circuit for inspecting a data reception related circuit to generate inspection information, an inspection result image generation circuit for generating image data indicating the inspection information, a display switching ci... | 09/05/2006 |
| 7102667 | Picture quality diagnostics for revealing cause of perceptible impairments A picture quality diagnostics apparatus and method generates a human vision model response based on a human vision model for a test input video signal. Also objective measure maps for different impairment types are generated from the test input video signal. The obj... | 09/05/2006 |
| 7075566 | Video display apparatus A display having separate transmitting and receiving sets is provided with a feature to simplify adjustment to the video signal transmission path between the both sets. The display employs a directional video signal transmission path and a sub communication path usi... | 07/11/2006 |
