Specified Color (e.g., Saturation And Contrast Control) Patents (Class 348/603)
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Patent number: 11313731Abstract: Systems and methods for monitoring and/or controlling a temperature related condition of an item, including from a location different than a location at which the food item is located, are disclosed. At least one remote unit has a temperature sensor, a computing device configured to analyze measured temperature data, and a user interface. The user interface displays information regarding a temperature related condition of the item via light or visual signals. A control unit may wirelessly communicate with the remote unit. The control unit may be used to program the user interface to display particular light or visual signals in response to particular temperature related conditions. The control unit may instruct a temperature control mechanism to adjust the temperature of the item.Type: GrantFiled: July 20, 2020Date of Patent: April 26, 2022Assignee: WEBER-STEPHEN PRODUCTS LLCInventor: Christopher J. Allen
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Patent number: 10943338Abstract: Provided are an edge-induced visual illusion generation apparatus, a method, a program, and a recording medium capable of being applied to any image, automatically generating an edge-induced visual illusion without complicated work, and improving contrast using the edge-induced visual illusion. A two-dimensional digital filter, which is a filter with no orientation or an even filter with orientation and is a filter that allows a band of a relatively high frequency to pass or a high pass filter, or is an orientation-selective wavelet frame or an orientation-selective filter bank that are a set of an approximation filter with no orientation and detail filters with orientations, is applied to image data, and a component of a relatively high frequency band or a high frequency component is extracted, and/or coloring is applied to an edge of the extracted band component or the high frequency component, thereby generating an edge-induced visual illusion image.Type: GrantFiled: February 15, 2019Date of Patent: March 9, 2021Assignee: JAPAN SCIENCE AND TECHNOLOGY AGENCYInventors: Hitoshi Arai, Shinobu Arai
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Patent number: 10672344Abstract: Disclosed is an optical compensation system comprising a user terminal device, and a display device for obtaining luminance data and color coordinates data by the use of user terminal device, and generating compensation data for compensating a deterioration of an organic light emitting diode based on obtained luminance data and color coordinates data and storing the compensation data, whereby it enables an optical compensation even after shipment of products, and it provides high-definition viewing quality to a user for a long time.Type: GrantFiled: December 15, 2016Date of Patent: June 2, 2020Assignee: LG Display Co., Ltd.Inventor: Hyung-Jung Kim
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Patent number: 9927867Abstract: A method and apparatus for processing an image based on detected information are provided. The method includes obtaining information relating to properties of the image, property information related to the image; obtaining ambient environment information of a display device for displaying the image; and processing the image based on the property information and the ambient environment information.Type: GrantFiled: March 20, 2014Date of Patent: March 27, 2018Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jee-young Yeom, Min-Woo Lee, Jong-Ho Kim, Hyun-Hee Park, Hak-gyun Bae, Seul-ki Jang, Jeong-hoon Park
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Patent number: 9799306Abstract: A system and method for altering the characteristics of a display based on environmental data is disclosed. Exemplary embodiments provide a light sensor, an environmental processing unit which is adapted to receive electrical signals from the light sensor and generate an environmentally-reactive control signal (Sa), an image signal processor which accepts Sa and an encoded image signal (Se) and generates a pre-decoding image signal (Sp), and an image signal decoder which accepts Sp and generates a decoded image signal for the display. The environmentally-reactive control signal (Sa) may contain the instantaneous value of the desired display black level Sb. Alternatively or additionally, the environmentally-reactive control signal (Sa) may contain a signal linearity modification value.Type: GrantFiled: September 24, 2012Date of Patent: October 24, 2017Assignee: Manufacturing Resources International, Inc.Inventors: William Dunn, Harry Presley, Jerry Wasinger
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Patent number: 9570009Abstract: A pixel circuit of a display device, an organic light emitting display device and a method for driving the same are discussed. The pixel circuit of the display device in one example includes an organic light emitting device emitting light through a current; a driving transistor controlling the current flowing in the organic light emitting device; a first capacitor connected between gate and source electrodes of the driving transistor; a second capacitor in which a data voltage is previously stored; and a switching unit charging the data voltage, which is stored in the second capacitor, in the first capacitor, and allowing the organic light emitting device to emit light by driving the driving transistor in accordance with the data voltage charged in the first capacitor and at the same time charging a data voltage of next frame in the second capacitor.Type: GrantFiled: December 3, 2014Date of Patent: February 14, 2017Assignee: LG Display Co., Ltd.Inventors: Dong Kyun Woo, Gi-Hong Kim
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Patent number: 9231685Abstract: A transmitting/receiving circuit includes, in part, at least one transceiver, and at least two receiving channels forming a diversity receiver. One of the receiving channels includes, in part, a saw filter, an amplifier, and a frequency converter. The other receiving channel includes, in part, an amplifier, a frequency converter, and a received signal strength indicator (RSSI) adapted to detect signals transmitted by the transceiver. The RSSI is optionally coupled to an input terminal of its associated amplifier. The receiver further includes, in part, at least one processor operative to combine signals processed through the first and second receiving channels using a weight the processor assigns to the signal received by the second receiving channel in accordance with a strength of the blocker signal that the RSSI detects. The second receiving channel optionally includes an RSSI.Type: GrantFiled: November 16, 2010Date of Patent: January 5, 2016Assignee: MaxLinear, Inc.Inventors: Seung-Chul Hong, Sheng Ye, Tienyu Chang
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Patent number: 8958015Abstract: A display apparatus capable of notifying a user that a color mode that does not correspond to illuminance in an environment around the display apparatus is set is provided. When the display apparatus is powered on, an illuminance measurement section measures illuminance in an environment around the display apparatus, and when a set color mode does not correspond to the measured illuminance, a notification image is projected to notify that the color mode should be changed.Type: GrantFiled: June 18, 2014Date of Patent: February 17, 2015Assignee: Seiko Epson CorporationInventor: Takashi Ozawa
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Patent number: 8934756Abstract: An image processing apparatus includes a detecting unit configured to detect a change in a viewing environment; a storing unit configured to store position information of data displayed on a display unit when the change in the viewing environment is detected by the detecting unit; and a reproducing unit configured to reproduce data corresponding to the position information stored in the storing unit by receiving a re-viewing instruction.Type: GrantFiled: March 3, 2010Date of Patent: January 13, 2015Assignee: Canon Kabushiki KaishaInventor: Daisuke Kuroki
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Patent number: 8928811Abstract: Methods and systems for producing ambient light effects based on video content are provided. A method of producing an ambient light effect includes providing a receiving device including a processor configured to parse incoming video content and receiving the video content including a plurality of scenes at the receiving device. The method further includes parsing the incoming video content and detecting at least one scene in the video content for association with at least one ambient light effect. The method also includes generating a command specifying at least one ambient light effect to be associated with at least one scene and sending the command from the receiving device to at least one lighting device in communication with the receiving device to generate at least one ambient light effect associated with at least one scene when the scene is displayed to a user.Type: GrantFiled: October 17, 2012Date of Patent: January 6, 2015Assignee: Sony CorporationInventors: Adam Li, Megan Farrell, Aixin Liu, Djung Nguyen
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Patent number: 8823726Abstract: Some embodiments provide a program that performs a color balance operation. The program identifies an image that includes several pixels. Each pixel includes a luma component value and chroma component values. The program analyzes the luma component values of the pixels in the image to identify several luma ranges. The program determines, for each luma range in the several luma ranges, a set of transforms for modifying chroma component values of pixels in the image in order to remove a color cast from the image. The program applies the sets of transforms to the image to remove the color casts from the image.Type: GrantFiled: June 3, 2011Date of Patent: September 2, 2014Assignee: Apple Inc.Inventors: Daniel Pettigrew, Andrew Bryant, James C. Arndt, Olivier Fedkiw, Ryan A. Gallagher
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Patent number: 8773450Abstract: Arrangements and methods are provided that modulate various display device outputs in response to detected changes in environmental conditions affecting a display screen. The arrangement responds to changing environments to maximize the quality of the display. A sensor that is responsive to the changing environment, such as changes in ambient light, is provided to modulate the display accordingly. The arrangement contains logic for utilizing the sensing input and user preferences to provide the best display under the prevailing conditions.Type: GrantFiled: April 1, 2013Date of Patent: July 8, 2014Assignee: Lenovo (Singapore) Pte. Ltd.Inventors: Franklin W. Harris, Howell J. Chambers, Jr., Joseph C. Ninan, James A. North, Thomas A. Vanderkin
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Patent number: 8767002Abstract: System and methods are provided for performing saturation adjustment of one or more pixels. In one embodiment, an input color value of a pixel is received. The input color value includes an input saturation component. An adjusted color value is extracted from a predetermined look-up table that maps the input color value to the adjusted color value, the adjusted color value having an adjusted saturation component that is different from the input saturation component. The adjusted color value is output.Type: GrantFiled: January 19, 2012Date of Patent: July 1, 2014Assignee: Marvell World Trade Ltd.Inventors: Samson Huang, Alice Hsia
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Patent number: 8582034Abstract: Various embodiments for adaptive screen color calibration are presented. An embodiment of a method includes activating a calibration feature on a device, obtaining color data by scanning a pre-set color pattern displayed on a screen via a RGBW color sensor in the device, obtaining a current ambient light condition via an ambient light sensor in the device, obtaining a current temperature condition via a temperature sensor and measuring the color data with the current ambient light condition and current temperature condition, where the measured color data is used to automatically adjust one or more color settings of the screen to match a pre-set color standard. Other embodiments are described and claimed.Type: GrantFiled: September 16, 2008Date of Patent: November 12, 2013Assignee: Intel CorporationInventor: Wah Yiu Kwong
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Patent number: 8576340Abstract: Methods and systems for controlling ambient light effects associated with video content are provided. The method includes providing a receiving device configured to parse an incoming video file. The video file includes at least one track specifying at least one ambient light effect associated with at least one portion of the video file. The at least one track includes chrominance control data specifying at least one light color to be generated by the at least one lighting device. The method also includes parsing the video file at the receiving device to separate the track specifying the ambient light effect and the chrominance control data and sending a command to at least one lighting device to generate the ambient light effect specified in the track and the chrominance control data.Type: GrantFiled: October 17, 2012Date of Patent: November 5, 2013Assignee: Sony CorporationInventors: Adam Li, Megan Farrell, Aixin Liu, Djung Nguyen
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Patent number: 8564579Abstract: An ambient light sensing circuit includes a photodiode that flows a current in proportion to ambient light, a first storage capacitor that is electrically coupled with the photodiode and is discharged after being charged with a voltage of a first power supply, a second storage capacitor that is electrically coupled with the first storage capacitor and provides a coupling voltage, and a transistor that outputs a current from the first power supply corresponding to the coupling voltage of the first storage capacitor and the second storage capacitor after being electrically coupled with the second storage capacitor.Type: GrantFiled: December 26, 2007Date of Patent: October 22, 2013Assignees: Samsung Display Co., Ltd., IUCF-HYU (Industry-University Cooperation Foundation Hanyang University)Inventor: Ohkyong Kwon
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Patent number: 8542246Abstract: A color conversion device generates color data in a second color gamut based on first converted color data and input color data, which are obtained from input color data in a first color gamut, and outputs the color data in the second color gamut. The color conversion device includes a first color mapping unit which generates the first converted color data by mapping the input color data into the second color gamut; a color mixing unit which generates color data by mixing the first converted color data and second converted color data at a ratio corresponding to the first color gamut and the second color gamut; and a color data output unit which outputs the color data.Type: GrantFiled: March 11, 2009Date of Patent: September 24, 2013Assignee: Panasonic CorporationInventors: Katsuo Saigo, Hiroshi Miyai, Hisakazu Hitomi, Masanobu Inoe, Masahiro Kawashima, Akihiro Takeuchi
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Patent number: 8508666Abstract: A moving image processing apparatus includes a brightness information acquisition unit configured to acquire, from an input video signal, brightness information indicating brightness of the video signal, an illumination information acquisition unit configured to acquire illumination information about an environment of the moving image processing apparatus, an adaptation coefficient calculation unit configured to calculate an adaptation coefficient for an observer based on brightness when the brightness indicated by the brightness information is less than a first threshold and the brightness indicated by the illumination information is less than a second threshold, a correction coefficient calculation unit configured to calculate a correction coefficient to be used for image correction of the video signal based on the adaptation coefficient calculated by the adaptation coefficient calculation unit, and an image correction unit configured to perform image correction on the video signal using the correction coefType: GrantFiled: December 6, 2010Date of Patent: August 13, 2013Assignee: Canon Kabushiki KaishaInventor: Shugo Higuchi
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Patent number: 8421818Abstract: A signal processing device (200) included in a display which has a color reproduction range larger than that of the input device.Type: GrantFiled: July 30, 2010Date of Patent: April 16, 2013Assignee: Sanyo Electric Co., LtdInventors: Takaaki Abe, Masutaka Inoue
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Patent number: 8411098Abstract: Arrangements and methods are provided that modulate various display device outputs in response to detected changes in environmental conditions affecting a display screen. The arrangement responds to changing environments to maximize the quality of the display. A sensor that is responsive to the changing environment, such as changes in ambient light, is provided to modulate the display accordingly. The arrangement contains logic for utilizing the sensing input and user preferences to provide the best display under the prevailing conditions.Type: GrantFiled: September 30, 2007Date of Patent: April 2, 2013Assignee: Lenovo (Singapore) Pte. Ltd.Inventors: Franklin W. Harris, Howell J. Chambers, Jr., Joseph C. Ninan, James A. North, Thomas A. Vanderkin
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Patent number: 8345061Abstract: A method, system, and media are provided for enhancing viewability of information presented on a mobile device. The media includes presenting a user interface on a mobile device that includes foreground information that overlaps a background image. The background image may be converted into a first set of color values and the foreground information into a second set of color values. A dominant color may be determined for the background image and foreground information. The dominant colors may be used to calculate a contrast ratio that may be compared to a threshold value. At least a portion of the color values may be modified when the contrast ratio is less than the threshold value. A set of modified color values may then be derived and a modified presentation may be presented to the user that includes the modified color values.Type: GrantFiled: July 19, 2012Date of Patent: January 1, 2013Assignee: Sprint Communications Company L.P.Inventors: Shane Jeremy Landry, Harry H. Lai, Michael Joseph DeVries, Christine Schumaker
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Patent number: 8334876Abstract: A signal processing device including: a color coordinate adjuster performing color coordinate adjustment processing for adjusting color coordinates of an image input signal according to a color reproduction range of a display device; a brightness adjuster performing brightness adjustment processing for adjusting a brightness component of the image input signal; and a coefficient controller controlling a color coordinate adjustment coefficient and a brightness adjustment coefficient. The coefficient controller controls the brightness adjustment coefficient so as to decrease the brightness component of the image input signal, when saturation of a pixel having a first hue is high, controls the brightness adjustment coefficient so as to increase the brightness component of the image input signal, when saturation of a pixel having a second hue is high, and decreases the brightness adjustment coefficient when increasing the color coordinate adjustment coefficient.Type: GrantFiled: May 21, 2009Date of Patent: December 18, 2012Assignee: SANYO Electric Co., Ltd.Inventors: Takaaki Abe, Masutaka Inoue
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Patent number: 8289450Abstract: A video processing apparatus includes an input unit to which a video signal containing content is input, a first detector which detects a color of light in the surroundings, a second detector which detects whether a pattern portion formed of a single color of black or white is contained in the video signal input to the input unit, a corrector which corrects the video signal input to the input unit, and a controller. The controller conducts control so that the corrector corrects the video signal input to the input unit according to the color of light detected by the first detector if the second detector detects that the pattern portion formed of the single color of black or white is contained in the video signal input to the input unit.Type: GrantFiled: April 8, 2011Date of Patent: October 16, 2012Assignee: Hitachi, Ltd.Inventors: Kozo Masuda, Ikuya Arai, Masaaki Miyano
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Patent number: 8274526Abstract: A method, apparatus and system for visual gamma correction of a display system includes retrieving input gamma information from input content, determining at least one pattern representing luminance of the received content based upon at least the retrieved gamma information, displaying the at least one determined pattern representing the luminance of the received image content and at least one corresponding reference image on the display system, and adjusting the brightness and contrast of the least one reference image on the display system to approach the luminance of a corresponding determined pattern to determine a corrected gamma for the display system.Type: GrantFiled: December 14, 2006Date of Patent: September 25, 2012Assignee: Thomson LicensingInventor: Bongsun Lee
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Patent number: 8269896Abstract: An error reduction apparatus includes a combing absence detector to detect absence of combing from a luminance signal, a combing presence detector to detect presence of combing from a color-difference signal, a vertical low-pass filter to receive the color-difference signal, and a selector to select one of the color-difference signal and a color-difference signal to which the vertical low-pass filter is applied based on detection results of the combing absence detector and the combing presence detector, and if combing is absent in the luminance signal and combing is present in the color-difference signal, the error reduction apparatus applies the vertical low-pass filter to the color-difference signal and outputs the signal.Type: GrantFiled: April 24, 2009Date of Patent: September 18, 2012Assignee: Renesas Electronics CorporationInventor: Takashi Katou
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Patent number: 8264499Abstract: A method, system, and media are provided for enhancing viewability of information presented on a mobile device. The media includes presenting a user interface on a mobile device that includes foreground information that overlaps a background image. The background image may be converted into a first set of color values and the foreground information into a second set of color values. A dominant color may be determined for the background image and foreground information. The dominant colors may be used to calculate a contrast ratio that may be compared to a threshold value. At least a portion of the color values may be modified when the contrast ratio is less than the threshold value. A set of modified color values may then be derived and a modified presentation may be presented to the user that includes the modified color values.Type: GrantFiled: June 2, 2009Date of Patent: September 11, 2012Assignee: Sprint Communications Company L.P.Inventors: Shane Jeremy Landry, Harry H. Lai, Michael Joseph DeVries, Christine Schumaker
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Patent number: 8259125Abstract: Methods for gamut mapping and boosting a color saturation of a color signal having multiple colors and a color value for each color. An example method includes mapping each color from a first to a second color space, adjusting each color in the mapped color signal including boosting a color saturation; determining a maximum color value of the color signal; and, in response to a determining that the maximum color value exceeds a maximum displayable color value, setting the color value of the color having the maximum color value to be equal to the maximum displayable color value and scaling color values of colors not having the maximum color value.Type: GrantFiled: November 22, 2011Date of Patent: September 4, 2012Assignee: Texas Instuments IncorporatedInventors: Rajeev Ramanath, Larry L. Jenkins
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Patent number: 8243201Abstract: The invention relates to a method and module for regulating saturation degree. In this method, a curvature of a special function in all position is regulated by a saturation parameter to obtain a regulated function. A color input signal is assigned as an independent variable of the regulated function to calculate a color output signal corresponding to the color input signal.Type: GrantFiled: May 21, 2009Date of Patent: August 14, 2012Assignee: ASUSTek Computer Inc.Inventor: Chi-Yi Tsai
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Patent number: 8228340Abstract: A display apparatus includes: an image processor which processes image data; a display unit which displays an image based on the image data processed by the image processor; and a controller which controls the image processor to adjust at least one of a hue saturation and R, G and B gains of the image according to a color effect mode selected by a user among a plurality of preset color effect modes.Type: GrantFiled: April 18, 2008Date of Patent: July 24, 2012Assignee: Samsung Electronics Co., Ltd.Inventor: Mi-sook Jang
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Patent number: 8222837Abstract: This invention relates to an ambience lighting system for use in conjunction with a display device including an image display region. A central control receives an incoming audio video stream (AVS) and to determines color information at the periphery of the image to be displayed. Light sources are disposed in a pre-fixed arrangement in relation to the periphery of the image display region, and local control units are coupled to open or more light sources selected from the multiple light sources for locally operating the at least one coupled light source. The central control unit is adapted to transmit the determined color information as a stream to each respective local control unit, which use a portion of the received color information to operate the at least one coupled light source, the portion being determined based on the position of the at least one coupled light source within the pre-fixed arrangement.Type: GrantFiled: May 20, 2008Date of Patent: July 17, 2012Assignee: TP Vision Holding B.V.Inventor: Guido Galeazzi
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Patent number: 8194092Abstract: An image processing method for reducing a power consumption. The image processing method may reduce the power consumption by classifying an input content into a conversion target region and a preservation target region and by converting a luminance of pixels included in the conversion target region. Also, the image processing method may effectively perform a luminance conversion for pixels by separating the input content into the conversion target region and the preservation target region based on a luminance of the pixels of the input content. The image processing method may convert the luminance of the pixels of the conversion target region to maintain a contrast between text pixels and background pixels.Type: GrantFiled: March 20, 2009Date of Patent: June 5, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Young Ran Han, Seung Sin Lee, Du-Sik Park
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Patent number: 8189011Abstract: A light panel (115, 215, 403, 503, 513, 603, 605) having a predetermined number of emitted color options and a processor (113, 213) operably coupled to the light panel (115, 215, 403, 503, 513, 603, 605). The processor (113, 213) responds to a first color selection actuation by controlling the light panel (115, 215, 403, 503, 513, 603, 605) to display each of the predetermined emitted light options within different portions of the light panel (115, 215, 403, 503, 513, 603, 605). Thereafter, the processor (113, 213) responds to a second color selection actuation by controlling the light panel (115, 215, 403, 503, 513, 603, 605) to display a selected one of the predetermined emitted light options substantially over the light panel (115, 215, 403, 503, 513, 603, 605), wherein the selected one of the predetermined emitted light options is indicated by the second color selection actuation.Type: GrantFiled: December 13, 2006Date of Patent: May 29, 2012Assignee: Koninklijke Philips Electronics N.V.Inventors: Bartel Marinus Van de Sluis, Galileo June Destura, Martin Jacobus Johan Jak
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Patent number: 8171507Abstract: TV settings such as brightness can be established by sending from a TV signals from an ambient light sensor to a network server, with the network server establishing settings such as brightness in response for a program being played on the TV.Type: GrantFiled: February 29, 2008Date of Patent: May 1, 2012Assignees: Sony Corporation, Sony Electronics Inc.Inventors: Takashi Hironaka, Max Wu
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Patent number: 8139157Abstract: A video display apparatus generates luminance information for individual frames of a video signal from histograms of the luminance component of the video signal, and classifies the content of the video signal on the basis of this information. Color saturation information is also generated from color saturation histograms, and scene changes are detected. Video correction parameters and display control parameters are derived from the content classification and color saturation information. The video signal is corrected according to the video correction parameters, and displayed according to the display control parameters. Display characteristics suitable for the video content are thereby obtained. The parameters are changed when a scene change is detected, so that the viewer is not disturbed by the change in video display characteristics.Type: GrantFiled: December 20, 2007Date of Patent: March 20, 2012Assignee: Mitsubishi Electric CorporationInventors: Jun Someya, Kazuo Kyuma, Kazuhiko Tsutsumi, Hiroaki Sugiura, Hironobu Yasui
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Patent number: 8094162Abstract: Method and device are disclosed for adjusting a preferred color which enables a user to set a preferred color conveniently and a liquid crystal display device with the same. The method and device for adjusting a preferred color includes displaying a menu selection image and setting a variety of optional information, making successive display of at least one selection image which shows a plurality of selection images having information on preferred colors different from one another to set information on the preferred colors in succession, and storing the information on the preferred colors set and generating an image having preferred colors adjusted according to the information on the preferred colors stored.Type: GrantFiled: July 31, 2008Date of Patent: January 10, 2012Assignee: LG Display Co., Ltd.Inventor: Ho Young Jung
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Patent number: 8072545Abstract: The present invention discloses an image display device, comprising: a lookup table specifying a corresponding relationship between color saturation represented by gradation and set values associated with part including the minimum value of the color saturation; a first color saturation setting unit for setting color saturation associated with the set value greater than or equal to a predetermined value based on the lookup table; and a second color saturation setting unit for setting color saturation associated with the set value less than the predetermined value by calculating values which gradually decreased to the minimum value of the color saturation as the set value decreases.Type: GrantFiled: September 14, 2007Date of Patent: December 6, 2011Assignee: Funai Electric Co., Ltd.Inventor: Takayoshi Urisu
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Patent number: 8063992Abstract: Extracting and processing video content encoded in a rendered color space to be emulated by an ambient light source, comprising extracting dominant color information from a video signal and transforming the color information through unrendered color space using tristimulus primary matrices to form a second rendered color space for ambient distribution. Steps include quantizing the rendered color space to form an assigned color distribution, such as by reducing possible color states, or binning to form superpixels; and selecting a dominant color using a mode, mean, median, or weighted average of pixel chromaticities. A color of interest can be further analyzed to produce a true dominant color, and past video frames can guide selection of dominant colors in future frames.Type: GrantFiled: June 27, 2005Date of Patent: November 22, 2011Assignee: Koninklijke Philips Electronics N.V.Inventors: Srinivas Gutta, Mark J. Elting
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Patent number: 8041144Abstract: An apparatus and method for improving visibility of an image. The apparatus includes: a lookup table (LUT) generating module generating an LUT having image data in a high illuminance environment corresponding to image data of an input image set therein so as to increase lightness and chroma of the input image according to external illuminance; an image mapping module mapping the image data of the input image into the image data in the high illuminance environment on the basis of the generated LUT; and a local contrast increasing module increasing local contrast of the mapped image data using a parameter for adjusting the local contrast according to the external illuminance.Type: GrantFiled: October 16, 2007Date of Patent: October 18, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: In-Ji Kim, Hyun-wook Ok, Du-sik Park, Yang-ho Cho
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Patent number: 7995120Abstract: An apparatus and a method of smoothing the brightness of an image photographed in an image sensor without amplifying a noise component of a surrounding part of the image are disclosed.Type: GrantFiled: August 22, 2007Date of Patent: August 9, 2011Assignee: Mtekvision Co., Ltd.Inventor: Yo-Hwan Noh
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Patent number: 7973860Abstract: This invention relates to an apparatus for processing an input image including M input pixels. Each of the M input pixels respectively has an input gray scale. The apparatus includes a gain generating module, a contrast enhancing module, and a Gamma adjusting module. The gain generating module generates a contrast gain and a minimum input gray scale in accordance with the input gray scales of the M input pixels. The contrast enhancing module adjusts the input gray scales in accordance with the contrast gain and the minimum input gray scale, to generate an intermediate image. The intermediate image includes M intermediate pixels, and each of the M intermediate pixels respectively has an intermediate gray scale. The Gamma adjusting module adjusts the intermediate gray scales lower than a first threshold in accordance with the contrast gain and outputs the adjusted intermediate image as an output image.Type: GrantFiled: November 2, 2006Date of Patent: July 5, 2011Assignee: Quanta Computer Inc.Inventors: Tung-Lin Hsieh, Yu-Wen Huang, Yung-Sheng Hsu, Hsu-Hung Chen
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Dominant color extraction using perceptual rules to produce ambient light derived from video content
Patent number: 7894000Abstract: Extracting and processing video content encoded in a rendered color space to be emulated by an ambient light source, using perceptual rules for intelligent dominant color selection. Steps include quantizing the video color space; performing dominant color extraction by using a mode, median, mean, or weighted average of pixel chromaticities; applying perceptual rules to further derive dominant chromaticities via [1] chromaticity transforms; [2] a weighted average using a pixel weighting function influenced by scene content; and [3] extended dominant color extraction where pixel weighting is reduced for majority pixels; and [4] transforming the dominant color chosen to the ambient light color space using tristimulus matrices. A color of interest can be further analyzed to produce a true dominant color, and past video frames can guide selection of dominant colors in future frames.Type: GrantFiled: June 27, 2005Date of Patent: February 22, 2011Assignee: Koninklijke Philips Electronics N.V.Inventors: Srinivas Gutta, Elmo M. A. Diederiks, Mark J. Elting -
Patent number: 7889235Abstract: A PC 40 outputs a picture signal for a white color to a TV 100, and generates chromaticity information by measuring luminance values of respective RGB color components from a picture displayed on the TV 100, thereby determining whether the chromaticity information undergoes a change by varying an output of any of the RGB color components by a predetermined amount. Subsequently, when the chromaticity information has not undergone a change, the contrast of the TV 100 is lowered by a predetermined amount, and re-acquisition re-determination of chromaticity information is executed. On the other hand, when the chromaticity information has undergone a change, determination is made on whether the chromaticity information substantially matches chromaticity information representing white, and in the affirmative case, a white balance adjustment value is stored in an EEPROM 112 while in the negative case, the re-acquisition/re-determination of chromaticity information is repeated.Type: GrantFiled: November 21, 2006Date of Patent: February 15, 2011Assignee: Funai Electric Co., Ltd.Inventor: Takayoshi Urisu
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Patent number: 7859595Abstract: Flicker free operation of ambient light sources that emulate video content during low luminance conditions, where the ambient light source is output thresholded so that an on/off change of state of the ambient light source can be initiated after an intensity variable passes one or two thresholds. Output thresholding is used when extracting and processing video content encoded in a rendered color space, which can be decoded into frames tapped by an interframe interpolation process using only color information from selected frames, such as extracting average or other color information from an selected screen regions. Negative gamma correction helps prevent garish or inappropriate chromaticities and lumina.Type: GrantFiled: January 5, 2005Date of Patent: December 28, 2010Assignee: Koninklijke Philips Electronics N.V.Inventors: Srinivas Gutta, Elmo M. A. Diederiks, Huub Van Den Broek
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Publication number: 20100251293Abstract: Adjusting utilization of network bandwidth in a network comprising a media server and a media client is provided. The media client is connected to a display screen, and a video media is streamed from the media server to the media client. Light on at least a portion of the display screen is measured, and an indication of the measured light intensity is sent to the media server. Bits of the streaming video media are then adjusted in accordance with the indication, and the streaming video media with adjusted bits is received by the media client.Type: ApplicationFiled: March 31, 2009Publication date: September 30, 2010Applicant: CANON KABUSHIKI KAISHAInventors: Eric Riggert, Martin Martinez
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Patent number: 7777815Abstract: According to an aspect of the present invention, there is provided a video image quality control apparatus including: a video processing module configured to adjust image quality based on a control signal; a data table holder configured to hold a data table representing information of a start time and an end time of a daytime in each area; a determination module configured to determine a current location of the apparatus based on areal setting information of a receiving channel; a specifying module configured to specify a start time and an end time of a daytime at the current location by referring to the data table based on information of the current location; and an adjusting module configured to output the control signal based on a start time and an end time of a daytime specified by the specifying module.Type: GrantFiled: January 8, 2009Date of Patent: August 17, 2010Assignee: Kabushiki Kaisha ToshibaInventor: Takahiro Kimura
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Patent number: 7719551Abstract: 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 level by offsetting the brightness level to the minus side, and increase processing which increases a contrast gain within a dynamic range, are performed for an analog luminance signal or a digital luminance signal, enabling improvement in contrast even where brightness is intense.Type: GrantFiled: May 21, 2007Date of Patent: May 18, 2010Assignee: Hitachi, Ltd.Inventors: Hiroshi Aoki, Ryo Hasegawa
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Publication number: 20100014000Abstract: An automatic color adjustment method and an automatic color adjustment device used for an image output device are disclosed. The method comprises the following steps: obtaining an accumulated usage time of the image output device; obtaining the color intensity decline value corresponding to the accumulated usage time; and adjusting the color intensity of the image output device according to the color intensity decline value.Type: ApplicationFiled: October 29, 2008Publication date: January 21, 2010Inventors: Chueh-Pin Ko, Chen-Kang Su
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Patent number: 7646390Abstract: A display for displaying an image on the basis of input image data includes an image adjusting unit configured to perform adjustment processing on the input image data and an image detecting unit configured to detect a first image data segment matching a predetermined condition in the input image data. The image detecting unit performs the adjustment processing on the basis of the first image data segment.Type: GrantFiled: June 14, 2005Date of Patent: January 12, 2010Assignee: Canon Kabushiki KaishaInventor: Toshihiko Yokoyama
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Patent number: 7636086Abstract: Disclosed is a circuit for driving a self light-emitting display device which itself emits light when an electric or other energy is inputted thereto and a method thereof. According to the circuit and method, the self light-emitting display device can be driven more stably and with a higher efficiency by adjusting the number of used bits and luminance of respective color components in accordance with a luminance change of an external light and keeping a constant contrast ratio irrespective of the adjustment of the bit numbers.Type: GrantFiled: December 8, 2008Date of Patent: December 22, 2009Assignee: LG Electronics Inc.Inventors: Hak Su Kim, Yoon Heung Tak, Minho Lee
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Patent number: 7616262Abstract: A method of providing one or more aspects of an ambient environment comprises receiving a video signal, processing the video signal and controlling ambient light accordingly. A corresponding device and system of devices are described.Type: GrantFiled: May 15, 2003Date of Patent: November 10, 2009Assignee: Koninklijke Philips Electronics N.V.Inventors: David A. Eves, Richard S. Cole