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| Number | Title | Issue Date |
| 8045064 | Contrast control apparatus and method A contrast control apparatus includes a memory for storing input image signals within one frame and an image reducing unit for selecting at least one image signal of the input image signals. An accumulation value calculating unit calculates accumulation values for p... | 10/25/2011 |
| 8045063 | Apparatus, method, and computer program for processing image, and recording medium storing the computer program An image processing apparatus includes a non-linear smoother for smoothing input video data with an edge component thereof preserved, and outputting smoothed video data, a subtractor for subtracting the smoothed video data from the input video data and outputting hi... | 10/25/2011 |
| 7483083 | Movie enhancement A method for enhancing video or other multimedia in order to achieve a closer-to-movie theater viewing experience. The enhancement method can be applied to YUV or other video formats which are used for TV or digital media. The method provides a curve with at least o... | 01/27/2009 |
| 7428021 | Image processing method, recording medium and apparatus for performing color adjustment to image data using a brightness component, a low-frequency brightness component, and first and second parameters An image processing method aims to optimally improve a brightness distribution with respect to brightness of a face being a main subject of a person image. Thus, the method consists of: a brightness component extraction step of extracting a brightness component from... | 09/23/2008 |
| 7379079 | Electron emission device and driving method thereof An electro emission device (EED) operated by a driver for modulating the pulse width of a driving pulse according to a pulse width modulation (PWM) clock signal to control the brightness of images. The EED calculates a brightness level of image data indicating the b... | 05/27/2008 |
| 7364304 | Projector control To automatically adjust the quality of a projection image commensurate with the performance in-time deterioration and aging of projector component parts in an image projection system, each projector detects an integrated service time of its own light-source lamp and... | 04/29/2008 |
| 7362382 | Automatic gain control circuitry To provide an automatic gain control circuitry which effectively works for a video signal of which pedestal level in an effective video period is different from the pedestal level in the vertical blanking period. The automatic gain control circuitry comprises a firs... | 04/22/2008 |
| 7358994 | Image processing apparatus, image processing method, recording medium thereof, and program thereof In image processing apparatus and method for displaying and printing a person image photographed by a digital camera, it is possible to automatically correct image data and output the person image of an optimum characteristic. In this apparatus, an image obtaining p... | 04/15/2008 |
| 7352410 | Method and system for automatic brightness and contrast adjustment of a video source An image brightness and contrast management module for automatically adjusting brightness and contrast of an input video signal includes a histogram generation unit that generates a pixel luminance histogram based on pixel luminance values in a frame, whereby the hi... | 04/01/2008 |
| 7348557 | Scanning particle beam instrument A scanning particle beam instrument is provided, the instrument including a scanner, a radiation detector and a DC amplifier, the DC amplifier being operable to amplify a signal generated by the radiation detector to produce a video signal, the instrument further in... | 03/25/2008 |
| 7336815 | Image defect inspection method, image defect inspection apparatus, and appearance inspection apparatus In an image defect inspection method and apparatus which detects a gray level difference between corresponding portions of two images, automatically sets a threshold value based on the distribution thereof, compares the gray level difference with the threshold value... | 02/26/2008 |
| 7330581 | Image defect inspection method, image defect inspection apparatus and appearance inspection apparatus A new image defect inspection method and a new image defect inspection apparatus capable of being used for automatic setting of a threshold value for an appearance inspection apparatus with a high throughput have been disclosed. According to the image defect inspect... | 02/12/2008 |
| 7327384 | Gamut false color display A gamut error false color display uses false coloring on a monochrome image of a video picture being tested. Composite and component gamut error signals are extracted from an input video signal representing the video picture being tested. Such error signals may repr... | 02/05/2008 |
| 7324165 | [Automatic contrast limiting circuit and method thereof with spatial domain infinite impulse response filter] An automatic contrast limiting circuit and method thereof with spatial domain infinite impulse response filter are disclosed. A spatial domain infinite impulse response filter is adapted to generate an output value of the spatial domain infinite impulse response fil... | 01/29/2008 |
| 7310113 | Camera for automatically adjusting image brightness for an image on a display Image signals outputted from a CCD to an image signal processing circuit, which performs A/D conversion, YC signal processing to convert the image signals into video signals of NTSC or the like and outputs video signals after D/A conversion. A microcomputer receives... | 12/18/2007 |
| 7286183 | Device for generating a video image sharpness improvement signal A device for producing a video image sharpness improvement signal (DOC21-DOC22), with black level clipping of an associated video signal, comprises a differential transconductance stage processing the video signal and whose bias currents (Imax) are dir... | 10/23/2007 |
| 7283157 | Automatic level control (ALC) for video signals Disclosed are methods and systems for automatic level control (ALC) in a video signal processing system. The new ALC of the invention takes into account the gain applied to the video signal, such as that provided by an associated automatic gain control (AGC). Method... | 10/16/2007 |
| 7277135 | Video display signal brightness control circuit Video signal control circuitry for use in a video display system in which a variation in a brightness level of a video display signal causes a corresponding variation in a beam current signal, wherein such video signal control circuitry maintains a controllable vide... | 10/02/2007 |
| 7269785 | Digital manipulation of video in digital video player According to the invention, a technique for operating a digital versatile disk (DVD) system is disclosed. First digital information is read from a DVD player. The first digital information is decompressed to create second digital information that is stored. In order... | 09/11/2007 |
| 7265795 | Video signal processing circuit, video display apparatus, and video display method Embodiments of the invention provide a video display technique with which a stable video with a high contrast can be obtained according to brightness of a screen. In one embodiment, a video signal processing system for a video display apparatus which performs displa... | 09/04/2007 |
| 7233367 | Display apparatus and control method of picture thereof An apparatus for and a method of continuously adjusting a brightness and a contrast of a video display. An analog video signal is converted to provide digital luminance (Y) signals and amplitudes of the digital Y signals are adjusted based on determining whether the... | 06/19/2007 |
| 7233365 | Digital DC restore methods and apparatus Digital dc restore methods and apparatus to restore the DC component of an analog waveform to a quantized reference value level at a given temporal point on a waveform, prior to an ADC. This may used to establish the relationship between the full scale digital value... | 06/19/2007 |
| 7227559 | Image displaying method, image displaying device, and contrast-adjusting circuit for use therewith A system provides an image displaying technique that provides stable high contrast even in an area having high brightness. Based on information about an average brightness level of a digital luminance signal, black-correction processing which decreases a brightness ... | 06/05/2007 |
| 7227543 | Contrast adjusting circuitry and video display apparatus using same With the aim of offering a video display technique by which stable and high contrast video images are reproduced, contrast adjusting circuitry is constructed. The contrast adjusting circuitry detects a maximum picture level (MPL) and an average picture level (APL) o... | 06/05/2007 |
| 7209180 | Video output device A video output device adds a blank on both left and right sides or both upper and lower sides of an input video to produce a video having the same aspect ratio as that of the display screen of the display device, when an aspect ratio of the input video and an aspect... | 04/24/2007 |
| 7209183 | Method of automatically setting image quality Provided is a method of automatically setting image quality, which maintains a brightness and a contrast of an image regardless of a status of an input signal. The method includes: (a) setting a variable range of brightness and a variable range of contrast; (b) conv... | 04/24/2007 |
| 7184097 | On-screen display apparatus The present invention provides an on-screen display apparatus which can eliminate variations in the DC level at a time when an input chroma signal and an OSD chroma signal are switched, and prevent an erroneous display of color. The on-screen display apparatus of th... | 02/27/2007 |
| 7184583 | Image system for processing image data An image system for processing image data in the form of grey-scale value signals and for generating an image that can be displayed on a presentation device, in particular for a medical diagnostic device, has a circuit to harmonize the image data. This circuit is fa... | 02/27/2007 |
| 7180539 | Luminance qualified vector display A luminance qualified vector display device provides a vector display that is gated by a specified luminance range. In one implementation three luminance gates may be used, one for luminance levels above a specified high luminance threshold, a second for luminance l... | 02/20/2007 |
| 7176985 | Clamping circuit for video signals An apparatus, system and method for clamping a video signal input to a coupling capacitor (215) for providing a clamping voltage. A charging current is applied to the capacitor (215) via an amplifier (225) having a first input (227) coupl... | 02/13/2007 |
| 7170477 | Image reproducing method, image display apparatus and picture signal compensation device When reproducing an image by a display apparatus having a plurality of pixels, in an average signal level operation circuit is performed an operation to obtain an average signal level which is an average level of all the pixel signals in a picture signal including a... | 01/30/2007 |
| 7167214 | Signal processing unit and liquid crystal display device A signal processing unit in a liquid crystal display device, etc., includes a brightness component appearance frequency measuring unit that measures an appearance frequency of each brightness component in a video signal; a parameter outputting unit that outputs a di... | 01/23/2007 |
| 7154563 | Automatic brightness limitation for avoiding video signal clipping A brightness limitation system is employed in a television circuit to prevent the black reference voltage level and the video signal from entering a minimum signal clipping zone, to provide precise correction signal, limiting the brightness, to maintain a constant b... | 12/26/2006 |
| 7151535 | Contrast adjusting circuitry and video display apparatus using same With the aim of offering a video display technique by which stable and high contrast video images are reproduced, contrast adjusting circuitry is constructed. The contrast adjusting circuitry detects a maximum picture level (MPL) and an average picture level (APL) o... | 12/19/2006 |
| 7145569 | Data processing method A program executing machine generates display image data including data of at least first and second image areas, and changes a display parameter of the second image area in accordance with a characteristic parameter detected in the first image area. The characteris... | 12/05/2006 |
| 7142222 | Halftone controller circuitry for video signal during on-screen-display (OSD) window Digital circuitry for imparting halftone to that portion of a video image over which an on-screen-display (OSD) window is superimposed. ... | 11/28/2006 |
| 7119772 | Methods for driving bistable electro-optic displays, and apparatus for use therein A gray scale bistable electro-optic display is driven by storing a look-up table containing data representing the impulses necessary for transitions, storing data representing at least an initial state of each pixel of the display, storing data representing temporal... | 10/10/2006 |
| 7110046 | Method for dynamically adjusting video brightness A method for dynamically adjusting video brightness performs histogram equalization on a video YUV brightness/color signal to generate an equalization brightness curve. The brightness of each pixel is compared with every pixel of the video frame before and after his... | 09/19/2006 |
| 7106231 | Video signal processing system including analog to digital converter and related method for calibrating analog to digital converter A video signal processing system capable of adjusting errors and related methods are introduced. The video signal processing system and related calibration methods utilize the characteristic of periodic breaks of video signals to perform various kinds of calibration... | 09/12/2006 |
| 7102695 | Adaptive contrast and brightness enhancement with color preservation A method and apparatus for selectively enhancing contrast depending on the level of incoming video signals while preserving colors are provided. An apparatus for enhancing the contrast and brightness of a video signal displayed on a display device includes: a first ... | 09/05/2006 |
