Class / Patent application number | Description | Number of patent applications / Date published |
348181000 | Test signal generator | 80 |
20080198233 | 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 fed to the device under test where it is decoded. Actual output video is compared with the expected decoded video on a frame-by-frame basis. The test results are indicated by discrepancies, which can be visually examined by human or by computer, through a comparison of the two videos. During generation of the test bit stream, for a given GOP structure, the subsequent P and B frames are determined by varying the selected testing MPEG parameter with the whole range of its possible values, while keeping other parameters constant. | 08-21-2008 |
20080239082 | HDMI format video pattern and audio frequencies generator for field test and built-in self test - A versatile video pattern and audio pattern generation module, that can be integrated onto a video integrated circuit (IC) to generate functional video test input data, in HDMI format, for gray bars, color bars and moving bar data patterns, and to further generate single-tone audio signals, is disclosed. This video signal generator can be made part of the built-in-self test (BIST) to allow simplified testing of the IC. The signals generated can be used to test the video and audio functionality, as well as enabling a system to be demonstrated in the field. The output of the generator during the demonstration can be displayed using any suitable video display enabling simplified demonstration set-up. These video and audio signals can bemused as a diagnostic tool by the consumer and also for debugging the IC and system as may be necessary. | 10-02-2008 |
20080266398 | SYSTEMS AND METHODS FOR SPATIALLY ISOLATED ARTIFACT DISSECTION, CLASSIFICATION AND MEASUREMENT - Embodiments of the present invention relate to a method of measuring a test video frame. A test video input is provided, along with an artifact measurement control, a gradient change measurement is performed based upon the test video input and a gradient change measurement map is provided. | 10-30-2008 |
20080266399 | IMAGE PROCESSING APPARATUS AND METHOD - An image processing device including an encoder processor and a decoder circuit. The encoder processor receives image data from a sensor and encodes the data with padding data if a series of bytes indicative of command sequence occur within the image data. The decoder circuit receives the image data and the padding data, and removes the padding data from within the image data. | 10-30-2008 |
20080273089 | 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 matches a second region. A performance parameter of said video equipment is determined from said adjustment. | 11-06-2008 |
20080284852 | Video Signal Processing Integrated Circuit - A video signal processing integrated circuit comprising: a test signal generation circuit configured to generate a test signal in conformity with video additional data superimposed on a video signal; a data slicer configured to binarize the test signal through comparison with a slice level, the test signal being supplied from the test signal generation circuit; and a data processing circuit configured to perform data processing of the video additional data binarized by the data slicer. | 11-20-2008 |
20080291281 | METHOD AND APPARATUS FOR IMPLEMENTING AN OVERLAY CURSOR AND ASSOCIATED SCOPE TRIGGER IN A VIDEO TEST GENERATOR - A method and apparatus for implementing a video test generator having an overlay cursor and an associated scope trigger are presented. A user interface permits a user to move a cursor across a displayed image, and to select a scope trigger point in the analog video stream based on the location of the cursor in the displayed image. Video waveforms associated with particular image pixels of interest or groups of pixels are observed on an oscilloscope by placing the cursor over the subject pixels or pixels on the video display and using the derived scope trigger to time the capture of the video waveform on the oscilloscope. The cursor is generated by tracking the horizontal and vertical position of the cursor, and altering or substituting out the video signal where the pattern of the cursor should appear. | 11-27-2008 |
20080297603 | METHOD FOR GENERATING TEST PATTERNS FOR DETECTING AND QUANTIFYING LOSSES IN VIDEO EQUIPMENT - A method for detecting and quantifying losses in at least one of video and audio equipment, comprising the steps of generating the test pattern; processing the test pattern through video equipment; and displaying the processed test pattern to a display to a viewer. In one embodiment, the test pattern is indicative of video compression losses due to quantization. In another embodiment, the test pattern is indicative of a color transformation mismatch after encoding/decoding with incompatible video transmission standards. In a third embodiment, the test pattern is iso-luminant after a color transformation between a first and second video transmission standard. In a fourth embodiment, the test pattern is indicative of lipsync error. | 12-04-2008 |
20080297604 | Test pattern signal generator and generation method, color measurement system and display device - Disclosed herein is a test pattern signal generator for outputting a video signal adapted to display, on a display device, a test pattern of a color chart according to a standard for a first color gamut and a color chart of a test pattern according to a standard for a second color gamut which is wider than the first color gamut, the test pattern signal generator including: a color chart recording section configured to record color chart information of the standard for the first color gamut and color chart information of the standard for the second color gamut; and a test pattern signal generation section configured to generate, based on the information recorded in the color chart recording section, a video signal adapted to display test patterns in which the color charts according to the respective standards are arranged in a predetermined layout on the same screen. | 12-04-2008 |
20090009607 | System for Providing Uniform Image Quality in Displays for Image Reproduction - Although video display screens are factory calibrated to correct performance, they differ in the actual color balance presented to the viewer. Similarly, the output of video sources may vary, in particular from video cameras. For recalibration purposes, each video display screen is connected to the video source via a Central Processing Device, and each video display screen is calibrated when first installed by means of a test signal having a pre-defined color balance. The signal is analyzed by means of a three-color sensor, and the information is fed back to the Central Processing Device and stored along with a device identifier. Any subsequent video signal provided to a particular video display screen will be modified electronically by means of individual stored parameters. Video sources will have their output signals similarly modified after having been subjected to a similar analysis performed on a video display screen already calibrated. | 01-08-2009 |
20090040311 | Video matching device, method, and program - A matched state detection unit ( | 02-12-2009 |
20090046154 | SYSTEM AND METHOD FOR TESTING A VIDEO SIGNAL GENERATOR - An exemplary method for testing a video signal generator is provided. The method includes: setting test parameters of the video signal generator to perform a function test; generating signals based on the test parameters through the video generator; controlling a standard measuring apparatus to receive the signals and to convert the signals into test values; determining whether the video signal generator passes the function test by comparing the test values with a standard working range of the video signal generators; and generating a test report based on the test values and the test parameters. A system for testing a video signal generator is also provided. By utilizing the present invention, errors can be reduced and test efficiency can be enhanced. | 02-19-2009 |
20090102926 | DETECTING AND PROCESSING CORRUPTED VIDEO RECORDINGS - Embodiments of the invention include a method that comprises receiving a request to record television content on a specified channel for a specified period of time. The method can also include tuning to the specified channel at the specified time, and recording the specified content. The method can also include determining that one or more segments of the television content is corrupted. The method can also include presenting a notification indicating that some of the television content is corrupted, retuning to the specified channel made by the request, and acquiring uncorrupted television content for use in replacing the one or more segments of corrupted television content. | 04-23-2009 |
20090109293 | ON DEMAND CALIBRATION OF IMAGING DISPLAYS - A self calibrating imaging display system ( | 04-30-2009 |
20090115851 | METHOD FOR ESTIMATING THE MOTION IN IMAGE PROCESSING - A method is described for selecting a motion vector for a first image block of an image of an image sequence from a number of test vectors, wherein at least one of these test vectors is a motion vector of a further image block that is arranged temporally and/or spatially adjacent to the first image block, or a vector formed by modification of this motion vector, and wherein the method covers: | 05-07-2009 |
20090213223 | TESTING SYSTEM FOR A VIDEO CARD AND A TESTING METHOD THEREOF - A testing system includes a computer ( | 08-27-2009 |
20090244290 | Systems and methods for monitoring, troubleshooting and/or controlling a digital television - A system for monitoring, troubleshooting, controlling, calibrating and/or configuring a digital television is provided. The system includes a functionality module configured to perform one or more functions of a digital television. The system includes a testing module associated with the digital television, communicatively coupled to the functionality module and being configured to receive from the functionality module, data indicative of the one or more functions of the digital television. The testing module is configured to perform processing using the received data to determine whether to alter one or more parameters associated with the one or more functions of the digital television. | 10-01-2009 |
20090268034 | MEASURING THE FREQUENCY RESPONSE OF A CATV NETWORK - An apparatus and method for frequency sweeping a CATV network, suitable for an upstream path frequency sweeping, is presented. A narrowband test signal is injected into the network by a generator coupled to a cable modem during a time interval allocated by the head end for the cable modem to transmit a modulated digital signal. The amplitude of the test signal is lower than the amplitude of the modulated digital signal, so as not to impair reception of said digital signal at the head end. The frequency of the test signal is swept, and the amplitude of the received test signal is measured. A telemetry or a digital signal transmission is used to communicated the values of the amplitude of the test signals between the injection and the measurement locations of the network. | 10-29-2009 |
20090284604 | Method and a device for adjusting a color temperature coordinate value measured by a display color analyzer - A method and a device for adjusting a color temperature coordinate value which is measured by a display color analyzer are disclosed. The device comprises a main control module. The method comprises the following steps: displaying a test image on a standard monitor; receiving a color temperature coordinate value of the standard monitor which is measured by the display color analyzer; obtaining a default standard color temperature coordinate value and comparing with the measured color temperature coordinate value to obtain a color temperature offset value; and adjusting the color temperature coordinate value measured by the display color analyzer by using the color temperature offset value. | 11-19-2009 |
20090290026 | Self calibrating cable for high definition digital video interface - A High Definition Multi-Media Interface (HDMI) cable may exhibit frequency dependent signal attenuation, inter symbol interference, and inter-pair skew. A boost device integrated with the cable can compensate for such impairments of the cable. A self calibrating cable with a boost device of the embodiment of the invention is described, in which parameters that control the response of the boost device are set optimally in a self-calibrating process comprising looping the boosted cable on itself through a calibration fixture that contains a calibration control device. The boost device includes pattern generators and a sampling circuit. Each high speed channel of the cable is separately tested and calibrated with the help of one of the other channels serving as a sampling channel. Additional embodiments provide for a selected replica boost device and a distinct pattern generator device in the calibration fixture. | 11-26-2009 |
20090316001 | METHOD AND APPARATUS FOR TESTING A VIDEO PROCESSING SYSTEM - A method of testing an aircraft video system using a handheld video testing apparatus is described. The aircraft video system includes a video processing system and at least one display. The method includes generating a digital test image utilizing the video testing apparatus, receiving the digital test image at the video processing system, forwarding the digital test image to at least one of the displays through operation of the video processing system, and verifying the digital test image is correctly produced by the displays to which the digital test image was forwarded. | 12-24-2009 |
20100020179 | Self calibrating cable for high definition digital video interface - A High Definition Multi-Media Interface (HDMI) cable may exhibit frequency dependent signal attenuation, inter symbol interference, and inter-pair skew. A boost device integrated with the cable can compensate for such impairments of the cable. A self calibrating cable with a boost device of the embodiment of the invention is described, in which parameters that control the response of the boost device are set optimally in a self-calibrating process comprising looping the boosted cable on itself through a calibration fixture that contains a calibration control device. The boost device includes pattern generators and a sampling circuit. Each high speed channel of the cable is separately tested and calibrated with the help of one of the other channels serving as a sampling channel. Additional embodiments provide for a selected replica boost device and a distinct pattern generator device in the calibration fixture. | 01-28-2010 |
20100053337 | VIDEO TEST PROCESS INTEGRATED IN A SET-TOP-BOX - A device, such as a set-top box, may include logic to allow television customers to automatically test and adjust the quality of the displayed video signal. A set-top box may receive a user selection of whether to perform a video test using an automatic loopback test sequence or a user subjective test sequence. The set-top box may perform, when the automatic loopback test sequence is selected, a video quality test that may include transmitting a signal from the set-top box, receiving a loopback version of the video signal, and comparing the received loopback version of the video signal to the transmitted signal. The set-top box may perform, when the user subjective test sequence is selected, a video quality test that may include displaying one or more test patterns to a user and receiving feedback from the user relating to a quality of the displayed test patterns. | 03-04-2010 |
20100079596 | DEVICE 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 deviation A of RGB values of pixels in a vertical sample with a standard deviation B of RGB values of pixels an adjacent vertical sample to obtain samples of each color interval from many samples taken; taking pixels from many vertical samples of each color interval to calculate a mean value of the RGB values of each color interval respectively, determining a color corresponding to each of color intervals, and determining an interval sequence of the to-be-tested image and the code sequence of the color intervals; and determining an image format corresponding to the code sequence according to the image format table which records a plurality of image formats corresponding to the interval sequences of the color intervals of the images. | 04-01-2010 |
20100091111 | METHOD FOR SETTING FRAME RATE CONVERSION (FRC) AND DISPLAY APPARATUS USING THE SAME - A method for setting a frame rate conversion (FRC) and a display apparatus using the same are provided. According to a method for setting FRC, an FRC level is received from a user; and a motion estimation and motion compensation level when performing FRC is set according to the input FRC level. Therefore, a user may set the FRC level according to the user's preference. | 04-15-2010 |
20100134634 | IMAGE PROCESSING SYSTEM - An image processing system includes a camera, an image processor and a calibration surface. The calibration surface includes thereon a calibration pattern, the calibration pattern comprising a plurality of alternately coloured elements which provide a corresponding plurality of corners at locations on the calibration pattern at which more than two of the coloured elements adjoin. The corner locations define a first group of lines and a second group of lines, the lines in each of the group of lines are parallel with respect to each other and with respect to the calibration surface. The first group of lines is orthogonal to the second group of lines and the camera is operable to generate and communicate to the image processor a video signal representative of a scene as viewed by the camera, the scene including the calibration surface. The image processor is operable to detect from the video signal at least some of the corner locations and thereby identify the first and second group of lines of the calibration pattern, to extrapolate the lines from each group of lines to determine a presence and a location of a first intersection point on a plane of the scene as viewed by the camera at which the extrapolated lines from the first group intersect and a second intersection point on the plane of scene as viewed by the camera at which the extrapolated lines from the second group intersect, and to estimate from the presence and the location of the first and second intersection points one or more of an estimated roll angle value, an estimated pitch angle value and an estimated yaw angle value corresponding to a roll angle, pitch angle and yaw angle of the camera relative to the calibration surface. The detection of the corner locations by the image processor comprises identifying from the video signal a plurality of potential corner locations, defining an area of the scene as viewed by the camera centred around each potential corner location, analysing a colour of points lying on a periphery of each area, thereby estimating a likelihood that a corner is located at each potential corner location. | 06-03-2010 |
20100165115 | Confirming Video Transmissions - In an interactive broadcasting system, television programming may be broadcast with interleaved web content information. The progress in broadcasting the web content information over one or more transports and over one or more channels within those transports, may be monitored to provide a time based indication of what content has been broadcast. In one embodiment, markers may be inserted into the data transmission flow and a method may be utilized to associate a handle with a particular marker. A method may be called which obtains the handle and another method may be utilized to invoke the handle to obtain current information about broadcast transmissions. This information may be used within a broadcast encoder or may be provided to a content provider, for example, through a log-in server. | 07-01-2010 |
20100231725 | ILLUMINANT INDEPENDENT COLOR CALIBRATION USING COLORED RAYS APPROACH - The color calibration using colored rays method achieves illuminant independence in calibrating digital still cameras. A constraint is developed using matrix-vector operations and properties of the Kronecker product. The constraint ensures similar calibration performance between colored rays set and the Macbeth ColorChecker. An optimization scheme using orthogonal non-negative matrix factorization with the new constraint is able to obtain the optimal colored rays set. Then, by acquiring an image of the optimal colored rays set, a camera is able to determine an adjustment matrix for color calibration. Experimental results show that compared to traditional calibration approach for digital still cameras, the colored rays approach gives smaller color error under various evaluation illuminants with only one shot needed. | 09-16-2010 |
20100238297 | METHOD AND APPARATUS FOR COMPENSATION FOR SKEW IN VIDEO SIGNALS - A system for compensating for skew in a color video signal transmitted by a cable having multiple conductors is described. A test pulse signal (e.g. a 2 MHz signal) is inserted into the color components (e.g. RGB) of the video signal during time periods in each frame when the RGB video signals are inactive, such as within 300 μs after the V sync signal. After transmission over the cable, the RGB components with the inserted test signal are delayed relative to each other using a delay line in cooperation with a control circuit. The delay line generates detect signals by detecting relative delays of the test signal pulses inserted in the RGB components. The control circuit controls the amount of delay in the delay line based on the detect signals, so that the RGB components in the video signal outputted by the delay line are synchronized. | 09-23-2010 |
20110019005 | IMAGE VALIDATION SYSTEM FOR REMOTE DISPLAYS - Systems, methods and devices are disclosed that provided for providing remote video feedback. The disclosure herein includes a transmitting computing device that is configured to produce an image frame encoded with metadata and to transmit the encoded image frame over a network to a remote display device. The remote display device includes a viewing screen contained in a chassis with bevel. The viewing screen includes an information validation pixel with the chassis extending over and covering the image validation pixel. The chassis also includes a photo sensor positioned on the under side of the bezel so as to be in operational view of the image validation pixel. The system also includes a sensor electronics module that is configured to detect the metadata when the metadata is displayed by the information content pixel and is received by the photo sensor. The sensor electronics module also generates image frame feedback information based upon the detecting. A remote computing device is included that is configured to receive the encoded image frame from the transmitting computer, render the encoded image frame upon the viewing screen and re-transmit the image frame feedback information to the transmitting computer from the sensor electronics module. | 01-27-2011 |
20110019006 | SYSTEM FOR EMBEDDED VIDEO TEST PATTERN GENERATION - In accordance with some embodiments of the invention, a video processing circuit can include a synchronization generator to generate a clock signal from an input video stream; and a test pattern generator coupled to receive the clock signal provided by the synchronization generator and to generate a test pattern over a number of cycles. In accordance with some embodiments of the present invention, a video processing system may include an video input capture circuit; a video input processing circuit including a synchronization generator and a test pattern generator; a video scaling circuit; a video merging circuit to recombine the video signals provided by the video scaling circuit into one video signal; and a video output circuit including a cyclical redundancy check circuit. | 01-27-2011 |
20110069178 | MULTIMEDIA INTERACTIVE SIMULATOR - A system that incorporates teachings of the present disclosure may include, for example, a device, including a centralized controller to: distribute multimedia content to permit a television (TV) emulator client at one or more retail store locations to simulate a plurality of features of a television system interactively by using a media controller; and periodically update the multimedia content distributed to the TV emulator client. Other embodiments are disclosed. | 03-24-2011 |
20110102602 | Video Path Confirmation - There is disclosed a method, device, and system for verifying a video path between a source device and a destination device. The destination device may receive a video signal including at least one video test pattern from the source device via a network. The destination device may automatically judge that a video path exists if the received video signal meets at least one predetermined criteria. | 05-05-2011 |
20110122256 | 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 matches a second region. A performance parameter of said video equipment is determined from said adjustment. | 05-26-2011 |
20110169965 | SYSTEMS, METHODS, AND APPARATUSES FOR DETECTING DIGITAL TELEVISION (DTV) COMMUNICATIONS SIGNALS - Embodiments of the invention may provide systems and methods for detecting the presence a DTV signal such as an ATSC DTV signal. The system and methods may be applied to a received RF signal that has been down-converted to a baseband or low-IF digitized signal. The systems and methods may detect a presence of a DTV signal by searching for its characteristic pilot signal, known to reside in a fixed frequency range for all valid DTV signals. This pilot signal may be extracted by processing the baseband or low-IF signal in multiple stages. The first stage may reduce the signal information to that pertaining to the frequency band covering all valid pilot frequencies and commensurately reduces the sampling rate, and hence computational complexity of subsequent operations. A second stage may then efficiently operate on this reduced rate signal to focus on a series of particular pilot frequencies for interrogation. For each such candidate frequency, the cyclostationarity of the signal may be measured and tested for statistical significance relative to the background energy to yield an effective test that is invariant with respect to the background noise level. In a simplified case, this can correspond to measuring the energy in a very tight candidate subband normalized against the energy from a larger subband. Furthermore, the energy in the candidate subband can be taken as the energy in a Fourier series coefficient. | 07-14-2011 |
20110234810 | GENERATED SET TOP CALIBRATION PATTERNS IN MANUFACTURING - Included are systems and methods for performing an internal operations test to a set top terminal (STT). At least one embodiment of a method includes creating a test pattern for testing video functionality of the STT, sending the created test pattern to a digital encoder, and converting the test pattern to an analog signal. | 09-29-2011 |
20110279684 | SIGNAL PROCESSING DEVICE AND SIGNAL PROCESSING METHOD - There is provided a signal processing device including a measured value acquisition unit configured to acquire a measured value for a feature quantity, the feature quantity having an influence on an estimation of a motion that appears in each frame of an input video signal, a determination unit configured to, on the basis of the measured value acquired by the measured value acquisition unit, determine a characteristic of a filter to be applied to the input video signal, and a filtering unit configured to generate a video signal for use in the estimation of a motion by applying to the input video signal a filter with the characteristic determined by the determination unit. | 11-17-2011 |
20110310252 | INTERNAL DISPLAY PORT INTERFACE TEST METHOD AND DEVICE - An iDP interface test method includes transmitting test clocks to an iDP sink device; determining whether or not a link clock lock operation in the iDP sink device is successful based on a measurement result of an HPD signal when a clock lock operation for the test clocks is performed; transmitting test data and arbitrary video data to the iDP sink device if the link clock lock operation in the iDP sink device is successful; determining whether or not a symbol lock operation in the iDP sink device is successful when the symbol lock operation for the test data and the arbitrary video data is performed; and comparing a count result with a predetermined reference value, and determining link stability of the iDP sink device based on the comparison result. | 12-22-2011 |
20120019668 | VIDEO SPECIFIC BUILT-IN SELF TEST AND SYSTEM TEST FOR CROSSPOINT SWITCHES - A crosspoint selector switch and test module, comprising: a crosspoint switch having a plurality of inputs and a plurality of outputs, wherein the outputs can be selectively switched to respective inputs; and a test system co-packaged with the crosspoint switch, the test system comprising a test signal generator that can be selectively connected to provide signals to the inputs of the crosspoint switch and a test signal analyzer that can be selectively connected to receive signals from the outputs of the crosspoint switch, wherein the test signal generator is configured to produce video data test signals that conform to a known format, and the signal analyzer is configured to analyze video data test signals that conform to the known format. | 01-26-2012 |
20120075480 | VIDEO TESTING SYSTEM AND METHOD - A video testing system tests the performance of a video player. The video player plays a predetermined video having video characteristics that correspond to the to-be-tested performance of the video player. The testing system includes a capturing member, a decomposition unit, an analysis unit, and a determination unit. The capturing member captures the video played by the video player. The decomposition unit decomposes the captured video into a sequence of frames according to a predetermined playback speed of the video player. The analysis unit selects frames of the captured video, and compares the selected frames to analyze video characteristic parameters of the captured video. The determination unit determines whether there is a difference between the video characteristic parameters of the captured video and standard characteristic parameters of the predetermined video is below a predetermined range to obtain the performance of the video player. | 03-29-2012 |
20120140081 | Test System For A Set-Top Box - The present application is directed to a test system for testing set-top boxes which provide a video output to a televisión. The test system records the execution of a test script, inputs to the set-top box and video output, each separately with a time stamp. The test system has a graphical user interface for playing back the video, inputs and scripts in a synchronised fashion. | 06-07-2012 |
20120162440 | SYSTEM AND METHOD FOR PERFORMING AN AUTOMATED SET TOP BOX TEST - A system and method for testing a set top box includes a test manager module in communication with the set top box having a test script including a bitstream. A bitstream player in communication with the test manager module receives the bitstream and communicates the bitstream to the set top box. The test manager module receives a screen image from the set top box that is generated in response to the bitstream. An optical character recognition module performs optical character recognition to obtain a test text string from the screen image. The test manager module compares the test text string with an expected text string. A report module generates a report in response to comparing. | 06-28-2012 |
20120212625 | METHOD AND APPARATUS FOR TELEVISION BAND PILOT SENSING - A DTV pilot sensor generates DTV pilot tone detection decisions associated with monitored television band channels without knowledge or estimation of a noise level of the monitored channel. | 08-23-2012 |
20120212626 | TEST MANAGER DEVICE AND TESTING METHOD - The present invention is related to the field of electronic engineering and computing. In particular, the present invention refers to a manager device for tests related to the Brazilian digital TV (DTV) standard in hardware adapted for DTV and a device for tests related to the Brazilian digital TV standard (ISDB-Tb standard) in its interactivity aspects. | 08-23-2012 |
20120218420 | Apparatus and Method for Calibrating Audio-Visual Signal - An apparatus for calibrating an audio-visual (AV) signal includes a controller for generating a control signal, a controllable filter for selectively filtering the AV signal in response to the control signal to output either the AV signal or a filtered AV signal; and a calibrator for generating a group of calibrating coefficients according to the filtered AV signal and calibrating the AV signal according to the group of calibrating coefficients. | 08-30-2012 |
20120236156 | OPTIMIZING CONTENT CALIBRATION FOR HOME THEATERS - A parameter detector sends at least one test signal to a display and receives at least one detected display parameter from a remote control device in proximity of the display. A content parameter analyzer retrieves at least one content parameter from content to be sent to the display. A parameter comparator then compares the detected display parameter to the content parameter and adjusts outgoing content signals based on the content parameter but in accordance with the detected display parameter. The parameter comparator provides at least one suggested display parameter adjustment when the content parameter is beyond the detected display parameter. The suggested display parameter can be transmitted using a video and/or an audio signal. | 09-20-2012 |
20120287287 | DISPLAY SCREEN FOR CAMERA CALIBRATION - A system for determining one or more camera calibration parameters is disclosed. The system comprises a processor and a memory. The processor is configured to: a) provide a first pattern for display on a display screen; b) receive a first image from a camera viewing the display screen; c) provide a second pattern for display on the display screen; and d) receive a second image from the camera viewing the display screen. The relative position of the display screen and the camera are the same as when the first image was captured using the camera. The processor is further configured to determine an image location which is a projection of a known physical location on the display screen by using at least in part a first feature identified in the first image and a second feature identified in the second image and determine one or more calibration parameters based at least in part on the determined image location. The memory is coupled to the processor and configured to provide the processor with instructions. | 11-15-2012 |
20120287288 | SYSTEMS AND METHODS FOR METERING AUDIO AND VIDEO DELAYS - A system to perform automated audio visual (AV) delay measurement for a system under test (SUT) includes a test pattern generator to generate a dynamic AV test pattern and connected to a source display device and to one or more destination video display devices; at least one light sensor coupled to the one or more destination video display devices; an AV capture device having video inputs connected to the light sensors; and an AV delay analyzer coupled to the AV capture device to perform multi-channel delay parameters analysis. | 11-15-2012 |
20120287289 | SYSTEMS AND METHODS FOR METERING AUDIO AND VIDEO DELAYS - Systems and methods are disclosed to perform automated audio visual (AV) delay measurement for a system under test (SUT) by generating a dynamic AV test pattern to drive a source display device and one or more destination video display devices; detecting video output through at least one light sensor coupled to the one or more destination video display devices; digitizing the light sensor output; and performing multi-channel delay parameters analysis. | 11-15-2012 |
20120300084 | SOURCE DEVICE FOR PROVIDING CONTENTS TO SINK DEVICE AND COMMUNICATION METHOD THEREOF - A source device that provides contents to a sink device and a communication method thereof are provided. The communication method of the source device includes: transmitting a communication signal including a High-bandwidth Digital Content Protection (HDCP) signal to the sink device; determining a communication status with the sink device using an HDCP communication result received from the sink device; and adjusting the communication signal according to the determined communication status. Therefore, the communication method can provide a user with optimized contents. | 11-29-2012 |
20130063606 | TESTING APPARATUS AND METHOD - A test apparatus for testing a video processing apparatus comprises means for receiving from the video processing apparatus a video output representative of a test sequence, the test sequence comprising a plurality of frames, each frame comprising an image of a respective different one of a plurality of frame identifiers; means for obtaining a sequence of sets of frame data from the video output, each set of frame data representative of a frame; and means for processing each set of frame data to determine the frame identifier for that frame. | 03-14-2013 |
20130147967 | TESTING METHOD AND TESTING APPARATUS FOR TV SYSTEM - A testing apparatus for a television system is provided. The testing apparatus includes an analysis module, a signal generating module, a transmitting module, a receiving module, and a judging module. The analysis module receives and analyzes a control signal to generate an analysis result. | 06-13-2013 |
20130242117 | FRAME BUFFER FORMAT DETECTION - In an example, a method includes generating a test frame of video data having a first format, and rendering the test frame of video data to a frame buffer, wherein the frame buffer is configured to store video data in a second format. The method also includes reading, from the frame buffer, a return frame of video data, wherein the return frame of video data comprises the video data of the test frame formatted in the second format, and determining the second format based on a comparison of the test frame having the first format and the return frame having the second format. | 09-19-2013 |
20140036094 | IMAGE PROCESSING APPARATUS AND INSPECTING METHOD THEREOF - An image processing apparatus including: at least one connector including at least one connection pin configured to be connected to an external device; an interface which interfaces transmission of signals to the connection pin through a first wiring formed between the interface and the connection pin; a switching unit which is switched on to transmit a signal through a second wiring which is formed differently from the first wiring to feedback the signal from the connection pin to the interface; a controller which controls the switching unit to allow the feedback of the signal through the second wiring to transmit a preset test signal from the interface to the first wiring at the time of inspecting a signal transmission state of the connection pin and the first wiring, and determines the signal transmission state based on a change of the test signal feedbacked to the interface through the second wiring. | 02-06-2014 |
20140049649 | PORTABLE DEVICE AND SIGNAL CONVERTING METHOD THEREOF - A portable device for communicating with an electronic device comprises a first communicating module, a processing module, and a converting module. The first communicating module intercommunicates data between the portable device and the electronic device. When the processing unit generates the instruction data in a first format, the converting module converts the instruction data from the first format to a second format, the communicating module transmits the coveted instruction data to the electronic device, so as to control the electronic device to generate feedback data which is in the second format; the communicating module further receives the feedback data in the second format from the electronic device, the converting module converts the feedback data from the second format to the first format which can be processed by the processing module. | 02-20-2014 |
20140111655 | OLED Display Device and Control Method Thereof - The present invention discloses an OLED display device and control method thereof. The OLED display device includes a display screen, a sensor and a timing controller, wherein the timing controller includes a detection unit, a test image generation unit, a data compensation unit and image control unit. Detection unit provides command for generating test image. Test image generation unit generates test image according to the command for generating test image. Data compensation unit obtains decayed signal corresponding to test image detected by the sensor and to generate compensation signal to transmit to image control unit according to decayed signal. Image control unit transmits test image to display screen for detecting decay of display screen when inputting test image. As such, the present invention can improve the uneven display situation caused by decay of OLED display device as time passes. | 04-24-2014 |
20140118558 | IMAGE QUALITY ADJUSTMENT APPARATUS, IMAGE QUALITY ADJUSTMENT CIRCUIT, AND DISPLAY PANEL - Provided is an image quality adjustment apparatus that can measure display unevenness for each pixel with higher accuracy than in the conventional art. An image quality adjustment system includes an image quality adjustment apparatus that generates correction data corresponding to a display panel, a test pattern generation device that causes the display panel to display a test pattern image, and a ROM writer. The image quality adjustment apparatus measures unevenness based on images of a display state of the display panel that are captured using cameras, and generates correction data for correcting the display unevenness that occurs due to manufacturing variations of the display panel. A feature of the present invention is that the image quality adjustment apparatus includes a plurality of cameras, and an image of a single display panel is captured using the plurality of cameras to obtain unevenness data of the display panel. | 05-01-2014 |
20140125817 | CONNECTION PROBLEM DETERMINATION METHOD AND CONNECTION PROBLEM DETERMINATION APPARATUS FOR IMAGE INPUT DEVICE - The present invention relates to a connection problem determination method and a connection problem determination apparatus for an image input device, and the connection problem determination apparatus, for an image input device, which includes: a network connection sensing unit which senses the network connection between a network video record system and a network-connectable image input device which provides a specific image; a timer which generates signals at regular time intervals in accordance with a clock pulse; a time delay measuring unit which measures a time delay on the basis of the signals from the timer if no network connection is sensed; and a connection problem determination unit which determines that there is a connection problem if the time delay is a predetermined threshold value or greater. | 05-08-2014 |
20140176728 | RECEIVER AND A TRANSMITTER - A receiver is described for a testing device for a data stream in which the data stream comprises a plurality of encoded data components. The receiver comprises an input for inputting a plurality of encoded data components, a processor for processing the plurality of encoded data components; and a plurality of outputs each for outputting a processed one of the plurality of encoded data components. The receiver is arranged, such that, in use, a plurality of encoded data components received at the input are processed by the processor and a processed one of the plurality of encoded data components is output from one of the plurality of outputs. This arrangement provides computational efficiency. | 06-26-2014 |
20140218540 | Noise Models for Image Processing - A plurality of images of a scene may be obtained. These images may have been captured by an image sensor, and may include a first image and a second image. A particular gain may have been applied to the first image. An effective color temperature and a brightness of a first pixel in the first image may be determined, and a mapping between pixel characteristics and noise deviation of the image sensor may be selected. The pixel characteristics may include pixel brightness. The selected mapping may be used to map at least the brightness of the first pixel to a particular noise deviation. The brightness of the first pixel and the particular noise deviation may be compared to a brightness of a second pixel of the second image. The comparison may be used to determine whether to merge the first pixel and the second pixel. | 08-07-2014 |
20140218541 | LONG-RANGE VGA IMAGE TRANSMISSION SYSTEM PROVIDING AUTOMATIC IMAGE ADJUSTMENT - A long-range VGA image transmission system includes an image output source for providing a first image signal; a test circuit for providing a test signal; an image encoding and transmitting circuit for encoding the first image signal and test signal to generate a transmission signal; an image decoding and receiving circuit for receiving and decoding the transmission signal to generate a second image signal and the test signal; an image detection and comparison circuit for receiving, detecting and comparing the second image signal with the test signal to generate an adjustment signal; an image-enhancement compensation circuit for receiving the adjustment signal to automatically adjust the second image signal and generate a third image signal; and an image display device for receiving the second image signal and then receiving the third image signal after the image adjustment. Therefore, manpower cost and possible failure of image adjustment with naked eye is eliminated. | 08-07-2014 |
20140240517 | Monitoring Video Waveforms - A video signal waveform monitor is shown, which receives an input video signal composed of video lines. A video signal digitizer samples the input video signal at video sample points to generate a sequence of video pixel data, which is written into an acquisition framestore is organized into a video pixel array so as to represent a raster of the input video signal. A level analyzer reads the video pixel data row-by-row from segments of the video pixel array and increments video level data at addresses in cache memory in response to the serially-read video pixel data. This generates a sequence of video level data, which is written into an output framestore and which represents the level of the waveform of the input video signal. The segments of the video pixel array comprise at least one and less than all of the columns in the video pixel array. | 08-28-2014 |
20150009339 | METHOD AND APPARATUS FOR TELEVISION BAND PILOT SENSING - A DTV pilot sensor generates DTV pilot tone detection decisions associated with monitored television band channels without knowledge or estimation of a noise level of the monitored channel. | 01-08-2015 |
20150077571 | COMPACT SYSTEM FOR PRESENTING WIDE FIELD OBJECT TARGET TO TEST OPTIC OR SYSTEM - Apparatus for evaluating optical components and systems that uses a precision compact mirror support structure to present to an optical system or electro-optical system (e.g., a camera) multiple images of at least one optical evaluation target over a wide field to allow assessment of the performance or alignment of the optical or electro-optical system over its intended field of use. The mirror support structure generates multiple images of an optical evaluation target by providing multiple folded optical paths between the target and the desired field locations of the test optic. The mirrors employed may either be parallel or at angles with respect to one another. | 03-19-2015 |
20150103186 | TESTING SYSTEM AND METHOD THEREOF - A testing system and a method thereof are provided. The testing system includes an audio/video playback apparatus and a testing apparatus. The audio/video playback apparatus is configured to receive an audio/video signal, and analyze the audio/video signal to generate a signal analysis result and a processed audio/video signal. The processed audio/video signal is configured to be displayed on a screen of the audio/video playback apparatus. The testing apparatus includes a switching module and a determining unit. The switching module controls at least one audio/video transmission interface of the audio/video playback apparatus, so as to select and transmit the corresponding audio/video signal to the audio/video playback apparatus. When the switching module transmits the audio/video signal to the audio/video playback apparatus, the determining unit receives and analyzes the signal analysis result, so as to determine whether the processed audio/video signal is normally processed by the audio/video playback apparatus. | 04-16-2015 |
20150304654 | SYSTEM AND APPARATUS FOR OBJECTIVE EVALUATION OF IMAGE QUALITY OF DIGITAL IMAGE MEDIA - Provided is a video quality assessment system for digital TV. The video quality assessment system includes a video quality test signal insertion device which inserts a test signal for testing video quality into a predetermined area of a transient effect area (TEA) of each frame of a source video and a video quality measurement device which detects the test signal from a predetermined area of the video signal recovered after reception and outputs the test signal. Preferably, an insertion position of the test signal is one line or two or more lines of the TEA area which are located in a lower end portion of the video, and the test signal is configured with multi-bursts including a large number of frequencies which are in a range of DC to ½ of a sampling frequency. | 10-22-2015 |
20160021368 | MEASUREMENT OF IR EMISSIONS AND ADJUSTMENT OF OUTPUT SIGNAL - Various arrangements for monitoring and mitigating infrared (IR) interference from a display device are presented. IR emissions from a display device are measured the IR signaling characteristics may be adjusted to mitigate interference from the emissions. Calibration methods may be used determine display emission characteristics by displaying test patterns and video clips. Characteristics of the display patterns and video clips may be correlated to high IR emissions. | 01-21-2016 |
20160021376 | MEASUREMENT OF VIDEO QUALITY - In a method of generating a measure of video quality, a set of weightings ( | 01-21-2016 |
20160094842 | DETECTION SYSTEM AND DETECTION METHOD OF MULTIMEDIA INTERFACE - The present invention discloses a detection system of multimedia interface and a detection method thereof The detection method of multimedia interface is applied to detect a first electronic device and comprises the following steps of: outputting a verification signal comprising a verification pattern by the first electronic device; receiving the verification signal and converting the verification signal into a verification pattern signal by a signal converting device; receiving the verification pattern signal by a second electronic device and transmitting the verification pattern signal in a multimedia interface format from a multimedia interface output terminal of the second electronic device to the multimedia interface input terminal of the first electronic device; and displaying the verification pattern by a display screen of the first electronic device. | 03-31-2016 |
20160165227 | DETECTION OF AUDIO TO VIDEO SYNCHRONIZATION ERRORS - A method of detecting the presence of unacceptable levels of audio to video synchronization errors in audio-video streams is provided. The method includes capturing, at a testing module, a test audio-video stream from a first source and a reference audio-video stream from a second source, extracting a test audio stream and a test video stream from the test audio-video stream, extracting a reference audio stream and a reference video stream from the reference audio-video stream, determining a highest correlation value between the test audio stream and the reference audio stream using cross-correlation, and determining that the test audio-video stream has an unacceptable level of AV-sync errors when the highest correlation value is above a preset correlation threshold. | 06-09-2016 |
348182000 | Chroma or color bar | 10 |
20090174780 | Method and System for Synchronizing Colorimetric Rendering of a Juxtaposition of Display Surfaces - A method for making uniform the colorimetric rendering of a display surface including several adjacent display screens ( | 07-09-2009 |
20110292219 | APPARATUS AND METHODS FOR IMAGING SYSTEM CALIBRATION - A reference set of image features is determined from an electronic data file specifying a reference image in a reference coordinate space. Rendering information describing a physical rendering of the reference image is ascertained. Calibration-enabling data is derived from the reference set of the image features and the ascertained rendering information. The calibration-enabling data is provided to calibrate an imaging system. The calibration-enabling data may be stored. The imaging system may capture an image of the physical rendering of the reference image in relation to a capture coordinate space. An extracted set of image features may be extracted from the captured image. Respective ones of the image features in the reference and extracted sets may be matched. The imaging system may be calibrated based on matched ones of the image features and the rendering information. | 12-01-2011 |
20120069195 | Pattern of Color Codes - A pattern includes a spatial configuration of color codes. Each color code is a unique configuration of colors selected from a number of basis colors. The color codes each include the same number of colors. | 03-22-2012 |
20130188060 | Method, System and Apparatus for Testing Video Quality - Systems and methods are disclosed for testing video quality by generating a stress tracker test pattern with one or more moving zone plates and one or more stamps; determining compression quality scores for encoder resources spent at predetermined levels of compression (stress); and analyzing the test pattern and generating a Compression Stress Response profile. | 07-25-2013 |
20140176729 | METHOD FOR DETERMINING CALIBRATION PARAMETERS FOR A SPECTROMETER - An imaging spectrometer includes a Fabry-Perot interferometer and an image sensor having color-sensitive pixels. The interferometer has a first transmission peak and a second transmission peak (PEAK2). A method calibrating the spectrometer includes providing first calibration light, which has a narrow spectral peak, obtaining first detector signal values from the image sensor by coupling the first calibration light into the spectrometer when the reference spectral peak is near a first spectral position, obtaining second detector signal values from the image sensor by coupling the first calibration light into the spectrometer when the reference spectral peak is near a second spectral position, providing second calibration light, which has a broad bandwidth, and obtaining third detector signal values from the image sensor by coupling the second calibration light into the spectrometer. | 06-26-2014 |
20140218542 | METHOD AND SYSTEM FOR REMOTE DIAGNOSTICS - The present invention is directed towards a method and system for remote diagnostics in a Digital Subscriber Line (DSL) set-top box network having a head-end unit and a set-top box having diagnostics software. The diagnostics software stored in the set-top box enables the head-end unit to remotely query the set-top box about the current condition of the set-top box and, as a result, reduces the necessity of service calls and/or shipping charges that would otherwise be required. The diagnostics software generates data is response to a set-top box identification request, a software version request, a check television connections request, a check I/O ports request, a check HPNA networking request, a check USB request, a check system ICs request, a check DSL connection request, a check error codes request, a read warranty clock request, a read hours of operation request, and a perform default test request received from the head-end. Execution of the diagnostics software may be initiated as part of a periodical diagnostic test of the set-top box, at the request of a customer having difficulties with the set-top box, or in response to an alarm or alert message generated by the set-top box. | 08-07-2014 |
20140267780 | HDMI IMAGE QUALITY ANALYSIS - Systems and methods for evaluating video quality of HDMI data are provided. In one example an HDMI video quality evaluator controls a video device to render a test pattern and encode the pattern into HDMI. The video device is controlled to transmit the HDMI formatted pattern from an output port to an input port on the device, capture a frame of the pattern, and transmit the frame to the quality evaluator. The quality evaluator compares rendered pixels in the frame to test pixels in the test pattern to identify video quality errors. Errors that exceed a threshold are identified, and a test result is outputted that includes errors exceeding the threshold. | 09-18-2014 |
20150109460 | IMAGE DISPLAY SYSTEM, METHOD FOR CONTROLLING IMAGE DISPLAY SYSTEM, IMAGE DISPLAY DEVICE AND METHOD FOR CONTROLLING IMAGE DISPLAY DEVICE - An image display system comprises an image output device configured to output an image signal that matches a plurality of types of image display devices; and a simulation display device that is an image display device having a function of emulating any of characteristics of the plurality of types of image display devices, wherein the simulation display device includes a setting notification unit notifying the image output device of characteristics information that is an image transform parameter used for emulation, and the image output device includes a determination unit determining, on the basis of the obtained characteristics information, whether or not an image signal that is an output target matches a setting of the simulation display device. | 04-23-2015 |
20150124104 | TESTING APPARATUS AND METHOD - A test apparatus for testing a video processing apparatus comprises means for receiving from the video processing apparatus a video output representative of a test sequence, the test sequence comprising a plurality of frames, each frame comprising an image of a respective different one of a plurality of frame identifiers; means for obtaining a sequence of sets of frame data from the video output, each set of frame data representative of a frame; and means for processing each set of frame data to determine the frame identifier for that frame. | 05-07-2015 |
20160165200 | MEASUREMENTS OF CINEMATOGRAPHIC PROJECTION - A method for determining the operation of an image projector for projecting images onto a screen of a projection room. In particular, the method is implemented by computing means and comprises the following steps: driving the projector so as to project onto the screen a test card comprising a distribution of patterns of different hues, acquiring an image of the test card on the screen by a picture taking apparatus, and applying a processing of the image acquired, so as to determine at least one deviation of chrominance of the image acquired with respect to a predefined number of colors. | 06-09-2016 |