Bizarre Patents
A portable partition for use in an automobile having a seat with a seat bench and a seat backrest.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7453524 | Method and device for image contrast enhancement The present invention discloses a method and a device for image contrast enhancement by taking the contribution of image chroma into account so as to define the luminance signal with the chroma weighted value. The new defined luminance signal can be applied towards ... | 11/18/2008 |
| 7443453 | Dynamic image saturation enhancement apparatus The invention provides an apparatus for dynamically adjusting the saturation of an image signal consisting of a plurality of pixels. The apparatus includes a first transformation module, an operation module, a gain module, an adjustment module and a second transform... | 10/28/2008 |
| 7443455 | Automatic gain control based on multiple input references in a video decoder A video decoder (10) for receiving an input video signal and producing output signals for a digital display (12), and involving automatic gain control (AGC) functions (20, 28), is disclosed. For each of the front-end and back-end AGC functions (... | 10/28/2008 |
| 7405771 | Method and device for independent color management The present invention discloses a method and a device for independent color management by using a look-up table (LUT) so as to adjust the color saturation of a single color independently. The method comprises steps of: receiving a color signal of an input pixel; det... | 07/29/2008 |
| 7352864 | Display device A display device comprises a nonvolatile memory for storing an amount of adjustment obtained in a blanking adjustment most recently performed for a particular video signal, means for judging whether or not the particular video signal is inputted, means for masking a... | 04/01/2008 |
| 7345713 | Video display apparatus for correcting luminance difference between display pixels An analog-to-digital converter converts a video signal into a digital video signal consisting of N bits and outputs the converted signal. A correction value memory stores correction data consisting of M bits which is used to correct the difference in luminance betwe... | 03/18/2008 |
| 7317493 | Method and apparatus for providing dual automatic gain control delay settings in a television receiver The present invention provides a method and apparatus for processing a received television signal comprising one of a first type of television signal and a second type of television signal. Specifically, the method comprises amplifying the received television signal... | 01/08/2008 |
| 7302110 | Image enhancement methods and apparatus therefor The invention relates to methods, devices and computer programs for processing images. The dynamic range of an image is adjusted to allow more detail in the original image to be reproducible, whilst preserving the natural look of the image. Improvements to lossy dat... | 11/27/2007 |
| 7283179 | Liquid crystal television apparatus Disclosed herein is a video signal process circuit that includes a control circuit having a level detection circuit and a dynamic range switch circuit. In the control circuit and a microcomputer, an average luminance of an image displayed on a liquid crystal panel v... | 10/16/2007 |
| 7256841 | Projection display apparatus and method for projecting image onto a screen A projection-type display apparatus for projecting an image onto a screen includes a light source, a signal processing unit for processing an input image signal to output a first image signal representing first primary-color information R1, G1, and B | 08/14/2007 |
| 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 |
| 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 |
| 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 |
| 7206030 | Fast-convergence two-stage automatic gain control (AGC) Disclosed are methods and systems for automatic gain control (AGC) in circuits. The disclosed methods and systems provide accurate and rapidly converging automatic gain control suited for video applications. According to disclosed preferred embodiments of the invent... | 04/17/2007 |
| 7200264 | White point estimation using color by convolution The probability of a chromaticity being a white point of image scene illumination is estimated by convolving a chromaticity histogram with a function of log probability distribution of chromaticities under an illuminant. ... | 04/03/2007 |
| 7196687 | Swept illumination to reduce LCD lag in front and rear projection displays Methods for illuminating the display area of a liquid crystal panel (13) are provided. Illumination light (17) is compressed into a stripe which is scanned across the display area in synchronization with the display's refresh cycle. In particular, the ... | 03/27/2007 |
| 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 |
| 7113227 | Gradation correcting apparatus gradation correcting method and video display apparatus The present invention has an object to provide a gradation correcting apparatus for correcting the gradation of the white side of a video luminance signal. The gradation correcting apparatus is provided with a maximum value detector 101 for detecting a... | 09/26/2006 |
| 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 |
| 7095451 | Image processing system, projector, information storage medium and black and white extension processing method To provide an image processing system, projector, information storage medium and black and white extension processing method which can improve the quality of image when at least one of white extension and black extension is performed to video signals, a extension de... | 08/22/2006 |
| 7064795 | Temporal dithering to increase dynamic range of images in sequentially illuminated displays A method of increasing image dynamic range by breaking each pixel into two or more time displaced samples that are presented to the display in synchronization with appropriate illumination. ... | 06/20/2006 |
| 7053960 | Systems and methods for adjusting image contrast Systems and methods for adjusting image contrast are provided. An exemplary method for adjusting image contrast includes determining a format of a television signal and outputting in conjunction with the television signal a reference level. If the television signal ... | 05/30/2006 |
| 7050114 | Picture signal contrast control The present invention relates to controlling contrast in at least part of a picture. The contrast control is performed by reducing the saturation (2–4) of the picture during contrast increase (1). ... | 05/23/2006 |
| 7046394 | Facsimile apparatus Having a memory card input and output unit, data conversion management means for judging the type of image data receivable at the destination side, first converting means for converting from the YCbCr format used in the memory card into the RGB format, second conver... | 05/16/2006 |
| 7038669 | System and method for providing a reference video signal A method is taught for providing a reference video signal to a video display through a video interface from a video display adapter for a host computer. The method includes the step of providing a horizontal sync line to carry a horizontal sync signal that occupies ... | 05/02/2006 |
| 7034896 | Gradation correction apparatus The present invention provides a gradation correction device which can perform gradation correction using digital feedback processing, and furthermore, can control the digital feedback processing with high accuracy. The gradation correction device is provided with a... | 04/25/2006 |
| 7027098 | Picture-signal processing apparatus and method using weighting for black-level control A digitized luminance signal, representing the luminance component of a picture signal, is adjusted according to data stored in a memory. The data are output according to the value of the digitized luminance signal and multiplied by a weighting signal generated acco... | 04/11/2006 |
| 6956621 | High impedance digital full line video clamp A circuit for clamping a TV signal includes an input capacitor coupled to the TV signal, an analog-to-digital converter that outputs a digital signal corresponding to TV signal, a comparator that compares the digital signal to a black level signal, and a high impeda... | 10/18/2005 |
| 6947099 | Automatic chroma control circuit with controlled saturation reduction An ACC system includes a controllable amplifier having an input coupled to receive a chroma input signal and an output for providing an chroma output signal of controllable amplitude. A first feedback path, including a cascade connection of means for providing a sig... | 09/20/2005 |
| 6937287 | Video processing apparatus and method In order to reduce the total capacity of a ROM used for adjustment of the black level and the white level of a digitized luminance signal for a television receiver, for example, a comparator compares the input luminance signal with a predetermined threshold value, a... | 08/30/2005 |
| 6937294 | Multiplexed video signal interface signal, system and method A multiplexed video signal interface in accordance with the present invention provides a multiplexed component video signal which includes component video signals with OSD data and user-controllable contrast and video gain, along with the ability to individually con... | 08/30/2005 |
| 6937288 | Beam current limiting circuit for use in a video projector In a beam current limiting circuit for a video projector, an average current is limited under closed loop control containing an anode current detection circuit 5. On the other hand, a cathode current detection circuit 107 comprises a first resistor and... | 08/30/2005 |
| 6931152 | Method for improved automatic partial color constancy correction A method for providing partial color constancy of a stimulus represented by an array of picture elements each represented by a color spectrum. The method comprising: (a) assigning to each picture element in the array, for each color, a color value, thereby to provid... | 08/16/2005 |
| 6809712 | Drive circuit of liquid crystal display, having clip circuit before polarity inversion circuit A drive circuit of an LCD is disclosed, by which no image signal having a voltage level over the dynamic range of the video amplifier, and thus erroneous operation of the video amplifier is prevented, thereby supplying normal image signals to the LCD. The drive circ... | 10/26/2004 |
| 6671001 | Offset level detection method for auto color gain control of analog video signals An offset level detection method for auto color gain control of analog video signals, which is used to find an optimal offset level for determining the input of the auto color gain control. The method includes at least the following steps: First, a lower ... | 12/30/2003 |
| 6653991 | Device and method for controlling a video signal gain A device and a method for controlling a video signal in a video display device controls a magnitude of an RGB video signal by controlling RGB gain values based on RGB count values controlled through external key inputs. The method comprises the steps of: ... | 11/25/2003 |
| 6633343 | Dynamic gamma correction apparatus An appropriate correction quantity is obtained for a video luminance signal on an individual video basis with a characteristic value, like the maximum or average value, of the luminance signal taken into account, thereby performing gray scale correction m... | 10/14/2003 |
| 6552751 | Video signal processing circuit and color adjusting circuit for color video signal A video signal processing circuit for making adjustments of a brightness, a contrast, a hue, and the like of a color video signal by a simple circuit construction. Input video signals which are supplied as 3-primary color signals or luminance and color di... | 04/22/2003 |
| 6549317 | Apparatus for transmitting image signals An apparatus for transmitting over optical cables a red image signal, a green image signal, and a blue image signal output from a personal computer, a clock signal indicative of the starting points of data frames of the image signals, an enable signal ind... | 04/15/2003 |
| 6542202 | Video signal processing apparatus improving signal level by AGC and frame addition method A video signal processing apparatus capable of improving signal level while reducing noise component no matter a video signal of what illuminance is input is provided, which apparatus includes a video signal amplifying circuit amplifying an input video si... | 04/01/2003 |
