Receiver Type Patents (Class 348/656)
  • Patent number: 9582900
    Abstract: RGB image signals are inputted. B/G ratio is calculated based on B image signal and G image signal. G/R ratio is calculated based on the G image signal and R image signal. In a feature space formed by the B/G ratio and the G/R ratio, a first process is performed. In the first process, a difference between coordinates in a first observation area and coordinates in a second observation area is increased. The first observation area mostly contains coordinates corresponding to a portion (of an object) infected with H. pylori. The second observation area mostly contains coordinates corresponding to a portion (of the object) in which eradication of the H. pylori infection has been successful.
    Type: Grant
    Filed: March 23, 2015
    Date of Patent: February 28, 2017
    Assignee: FUJIFILM Corporation
    Inventor: Yoshiyuki Moriya
  • Patent number: 9025084
    Abstract: In a video display apparatus A, a controller 9, while displaying video processed by a video processor 4 on a video display 3, displays LUTs 45R, 45G, and 45B which are tables of correction data for correcting luminance levels of red, green, and blue respectively. The controller 9 re-calculates and rewrites the correction data based on one adjustment point or two or more adjustment points P1 and P2 adjusted by the user.
    Type: Grant
    Filed: May 1, 2014
    Date of Patent: May 5, 2015
    Assignee: Funai Electric Co., Ltd.
    Inventors: Yuya Nakamura, Masahiro Suzuki
  • Patent number: 9001275
    Abstract: HDMI is a digital audio and video communications protocol commonly used in consumer electronics. HDMI is particularly synonymous with high fidelity audio and video. Even though HDMI is a digital communications protocol, the audio quality can be impaired by analog signal impairments and distortions even if there are no digital decoding errors. In particular, the very process by which the audio is converted from Digital (HDMI) to human audible “Analog Audio” can be prone to errors. This occurs when the Digital to Analog Converter (DAC) clock, which is derived from the HDMI TMDS clock or HDMI source, is “distorted” due to its jitter, resulting in erroneous sampling or outputting of vital audio samples, thereby reducing the audio quality of the experience. The present invention reduces the jitter on the TMDS clock, and hence the audio DAC clock, resulting in lower audio distortion.
    Type: Grant
    Filed: November 19, 2013
    Date of Patent: April 7, 2015
    Inventors: Andrew Joo Kim, David Anthony Stelliga
  • Patent number: 8970788
    Abstract: A gain-determining method for grayscale white balance of a display apparatus comprising a panel is provided. The method first displays a white, a red, a green, and a blue images on the panel respectively and measures the chromatic values and luminance of the images. Next, the chromatic values and luminance of a target white image is inputted. Following, according to the measured chromatic values and luminance of the white, the red, the green and the blue images, a first set of color mixture ratios is calculated. Then, according to the chromatic values and luminance of the target white image and the chromatic values and luminance of the red, the green and the blue images, a second set of color mixture ratios is calculated. Finally, according to the first set and the second set of color mixture ratios, a red gain, a green gain and a blue gain are calculated.
    Type: Grant
    Filed: August 20, 2007
    Date of Patent: March 3, 2015
    Assignee: Marketech International Corp.
    Inventors: Wen-Chwan Chao, Yi-Sheng Yu, Hsu-Pin Kao
  • Patent number: 8902362
    Abstract: A prediction means for predicting a maximum delayed change time, which is the longest in a change time which allows a next program to be displayed, if a channel is selected to change the current program to the next program; and a display control means, by which, from a reception completion time when the reception of the current program has been completed, a relevant program is displayed on the basis of original program data remaining in a buffer at the relevant reception completion time, and at the same time, the reproduction speed of the display is based on a speed at which the current program is displayed during the period between the reception completion time and a maximum delayed change time.
    Type: Grant
    Filed: December 12, 2011
    Date of Patent: December 2, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Masakazu Maehara
  • Patent number: 8878994
    Abstract: According to one embodiment, an information processing apparatus includes a first receiver, a screen transmitter, a second receiver and a controller. The first receiver receives first information associated with a display function of an external device. The screen transmitter generates an operation screen for operating the apparatus based on the first information, and transmits a video signal of the generated operation screen to the external device. The second receiver receives second information associated with content of an operation on the operation screen from the external device. The controller controls operation of the apparatus based on the second information.
    Type: Grant
    Filed: October 22, 2013
    Date of Patent: November 4, 2014
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Takahiro Arai, Eita Shuto
  • Patent number: 8875175
    Abstract: A digital video viewing system including methods for user selection of video advertisement content and time of display of video advertisements during a live video content stream. The digital video viewing system includes modules for receiving, evaluating and transmitting data within the digital video viewing system and to Internet protocol content providers. Also shown are methods for recording and re-playing live internet protocol content in conjunction with the video advertisement display methods.
    Type: Grant
    Filed: August 30, 2013
    Date of Patent: October 28, 2014
    Assignees: Sony Corporation, Sony Network Entertainment International LLC
    Inventors: Charles McCoy, True Xiong, Stewart Stremler
  • Patent number: 8866969
    Abstract: A display apparatus includes a receiver which receives a broadcasting signal, a display which displays an image based on the received broadcasting signal, a communication unit which communicates with a mobile device, and a controller which determines whether the mobile device interferes with at least one channel of a plurality of broadcasting channels received through the receiver, and controls the display to display a user interface (UI) indicates a user whether image noise has resulted from channel interference by the mobile device.
    Type: Grant
    Filed: May 14, 2013
    Date of Patent: October 21, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Seok-woo Yong
  • Patent number: 8860890
    Abstract: An electronic device and a control method thereof are disclosed, the electronic device including: an operation implementation unit conducting a predetermined operation; a first main controller controlling the operation of the operation implementation unit; an input reception unit receiving an input signal; a second main controller processing the input signal and being in the power saving state in the standby mode; and a subcontroller controlling the second main controller to process the input signal when the input signal is received in the standby mode, wherein the second main controller processes the received input signal according to control of the subcontroller, controls the first main controller to operate in the normal mode when the input signal corresponds to entering the normal mode, and returns to the power saving state in the standby mode when the input signal does not correspond to entering the normal mode.
    Type: Grant
    Filed: July 31, 2013
    Date of Patent: October 14, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Young-ick Jang, Chang-yong Kim, Jong-hyuk Jang, Jea-hee Han
  • Patent number: 8856857
    Abstract: This technique relates to a receiving device, a receiving method, and a program that can demodulate transmitted signals with high accuracy. A receiving device of this disclosure includes: an amplifying unit that amplifies a received signal; an adjusting unit that adjusts gain of the amplifying unit in accordance with power of the signal; a demodulating unit that demodulates the amplified signal; and a detecting unit that detects an interval from the signal, information having the same content continuously appearing in the interval. The adjusting unit restricts the process of adjusting the gain of the amplifying unit in accordance with a result of the detection of the interval. This disclosure can be applied to receiving devices that receive broadcast signals compliant with DVB-C2 via a CATV network.
    Type: Grant
    Filed: March 23, 2012
    Date of Patent: October 7, 2014
    Assignee: Sony Corporation
    Inventors: Kenichi Kobayashi, Naoki Yoshimochi
  • Patent number: 8830393
    Abstract: Spatial or temporal interpolation may be performed upon source video content to create interpolated video content. A video signal including the interpolated video content and non-interpolated video content (e.g. the source video content) may be generated. At least one indicator for distinguishing the non-interpolated video content from the interpolated video content may also be generated. The video signal and indicator(s) may be passed from a video source device to a video sink device. The received indicator(s) may be used to distinguish the non-interpolated video content from the interpolated video content in the received video signal. The non-interpolated video content may be used to “redo” the interpolation or may be recorded to a storage medium.
    Type: Grant
    Filed: December 18, 2008
    Date of Patent: September 9, 2014
    Assignee: ATI Technologies ULC
    Inventor: David Glen
  • Patent number: 8823881
    Abstract: A control device controls a television. The control device includes a touch module. The control device displays a menu containing a number of soft keys on a screen. The soft keys are activated to control the television to carry out corresponding functions. All positions on the menu are associated with all positions on the touch module correspondingly. As a result, a user can select desired soft keys to carry out corresponding functions by viewing the menu on the television and touching the touch module, rather than viewing the touch module.
    Type: Grant
    Filed: September 2, 2013
    Date of Patent: September 2, 2014
    Assignee: Hon Hai Precision Industry Co., Ltd.
    Inventor: Chih-Chun Chang
  • Patent number: 8767128
    Abstract: An image display device such as LCD television comprises: LUTs (look-up tables) which are tables of correction data for correcting color balance of a displayed image; gain adjustment units for providing gain to input signal values representing brightness levels of red, green and blue colors in image data of the displayed image; and a microcomputer for recalculating the correction data in the LUTs and updating the correction data to the recalculated ones. The microcomputer determines, as adjustment gain values, gain values which are provided to the input signal values by the gain adjustment units and which bring color balance of a white balance adjustment image to a predetermined color balance, and recalculates the correction data in the LUTs based on the correction data and the adjustment gain values. This image display device can increase accuracy of white balance adjustment and reduce time required for the white balance adjustment.
    Type: Grant
    Filed: January 19, 2012
    Date of Patent: July 1, 2014
    Assignee: Funai Electric Co., Ltd.
    Inventor: Masahiro Suzuki
  • Patent number: 8743293
    Abstract: An audio/video system includes a display having a plurality of input sources and a first peripheral device connected to one of the input sources. The display provides a user interface for receiving a switching command for switching current input source of the display among the input sources from a user, and the display automatically generates a first standby command to the first peripheral device when the received switching command is not switching the current input source to the input source corresponding to the first peripheral device.
    Type: Grant
    Filed: March 4, 2013
    Date of Patent: June 3, 2014
    Assignee: AmTran Technology Co., Ltd
    Inventors: Chin-Chiang Chang, Kuang-Cheng Chao, Wei-Wen Mai, Chien-Cheng Lin, Min-I Chen, Wen-Kang Wei
  • Patent number: 8736763
    Abstract: According to one embodiment, a content synchronizing method includes: first transmitting when receiving an acquiring request for reference time to determine a timing to synchronize a plurality of pieces of content executed by a plurality of modules with each other from a first module out of the modules, the acquiring request for the reference time to a second module out of the modules; receiving source information indicating an acquisition source of the reference time from the second module; and acquiring reference time information indicating the reference time from the acquisition source indicated by the source information, wherein second transmitting to the first module, together with the reference time information, processing time information indicating processing time from receiving the acquiring request until transmitting the reference time information, the processing time information being used to calculate a time lag between time in the first module and the reference time.
    Type: Grant
    Filed: April 30, 2012
    Date of Patent: May 27, 2014
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Yoshikata Tobita
  • Patent number: 8730405
    Abstract: In order to display selected content as desired by a viewer by performing an easy operation without interrupting current viewing, a display apparatus includes a reception unit for receiving from a remote controller for transmitting an operation instruction to the display apparatus operation information including the amount of operation of a selection member which is detected at the time of selecting content and identification information identifying selected content, a determination unit for determining an output attribute of the selected content identified using the identification information based on the amount of operation, an output image generation unit for generating an output image of the selected content based on the output attribute determined by the determination unit, and a display control unit for displaying the output image generated by the output image generation unit.
    Type: Grant
    Filed: October 24, 2008
    Date of Patent: May 20, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventor: Yoshio Nishioka
  • Patent number: 8687122
    Abstract: According to the present invention, there is provided an image display device for displaying acquired image information including: an information acquisition section for acquiring image information and information associated with the image information by communication from an external device; an adjustment section for executing image quality adjustment processing in relation to display of the image information; and a setting section for setting details of the image quality adjustment processing, based on the information. Therefore, details of the image quality adjustment processing may easily be set automatically in an appropriate manner.
    Type: Grant
    Filed: February 21, 2013
    Date of Patent: April 1, 2014
    Assignee: SANYO Electric Co., Ltd.
    Inventor: Kazuyuki Shirai
  • Patent number: 8677444
    Abstract: A set-top box for receiving radio and television signals is disclosed in which there is the presence of at least one unit (2) for receiving a signal (S) and at least one unit (3) for sending the received and processed signal (S?) to an image and/or sound broadcasting apparatus (4) such as a television set, radio set, PC, iPOD, and any other existing and/or achievable apparatus; means for processing the signal (S) converts said signal (S)—into the signal (S?) to be sent through a circuit (5) adapted to allow passage towards the broadcasting apparatus' (4) of information, data, promotions or advertising depending on suitable scheduling of said circuit.
    Type: Grant
    Filed: March 4, 2009
    Date of Patent: March 18, 2014
    Inventor: Riccardo Pilla
  • Publication number: 20130308057
    Abstract: Techniques and mechanisms for circuitry to provide video data for loading to a buffer. In an embodiment, a loader circuit receives video data and determines MX data for a video frame and NZ data for the video frame, wherein M and N are different respective dimensions of a color space, and wherein X is a first encoding type and Z is a second encoding type. The first MX data includes data representing a first portion of a color component value, and the first NZ data includes data representing a second portion of that color component value. In another embodiment, the loader circuit sends the MX data via a first channel while sending the NZ data via a second channel to a random access buffer.
    Type: Application
    Filed: May 15, 2012
    Publication date: November 21, 2013
    Applicant: OMNIVISION TECHNOLOGIES, INC.
    Inventors: Manuel Lu, Sunny Ng
  • Patent number: 8553154
    Abstract: An apparatus comprising a first circuit, a processing circuit and a conversion circuit. The first circuit may be configured to generate a first intermediate signal in a second format in response to an input signal in a first format. The processing circuit may be configured to generate a second intermediate signal and a third intermediate signal in response to the first intermediate signal. The conversion circuit may be configured to generate an output signal in the first format in response to the second intermediate signal and the third intermediate signal. The processing circuit may be configured to implement color blending on the second intermediate signal in the second format prior to conversion to the first format and pass the third intermediate signal without color blending.
    Type: Grant
    Filed: February 16, 2010
    Date of Patent: October 8, 2013
    Assignee: VIXS Systems, Inc
    Inventors: Hui Zhou, Christopher A. Aardema
  • Patent number: 8514334
    Abstract: An image display device such as an LCD television comprises a microcomputer and LUTs (look-up tables) which are tables of correction data for correcting color balance of an image to be displayed. The microcomputer recalculates correction data in the LUTs and updates the correction data to the recalculated correction data based on: an input value InL of image data of a Low side white balance adjustment image; an input value InH of image data of a High side white balance adjustment image; and a gain value GainL and a gain value GainH which are provided to the input value InL and the input value InH, respectively, to bring color balance of the Low side white balance adjustment image and the High side white balance adjustment image to a predetermined color balance, respectively.
    Type: Grant
    Filed: February 13, 2012
    Date of Patent: August 20, 2013
    Assignee: Funai Electric Co., Ltd.
    Inventors: Yuya Nakamura, Masahiro Suzuki
  • Patent number: 8467002
    Abstract: A storage unit stores and holds, for each location, a set of location information indicating a location which can be used by a broadcast program and color temperature information in the location. An arithmetic control unit acquires one piece of location information stored and held in the storage unit. A video signal processing unit performs a color correction process for a video signal contained in a broadcast signal on the basis of the color temperature information stored and held in the storage unit and set with the location information acquired by the arithmetic control unit. A display unit displays a video based on the video signal after the correction.
    Type: Grant
    Filed: March 27, 2009
    Date of Patent: June 18, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventor: Atsushi Tanaka
  • Patent number: 8411204
    Abstract: According to the present invention, there is provided an image display device for displaying acquired image information including: an information acquisition section for acquiring image information and information associated with the image information by communication from an external device; an adjustment section for executing image quality adjustment processing in relation to display of the image information; and a setting section for setting details of the image quality adjustment processing, based on the information. Therefore, details of the image quality adjustment processing may easily be set automatically in an appropriate manner.
    Type: Grant
    Filed: May 25, 2010
    Date of Patent: April 2, 2013
    Assignee: SANYO Electric Co., Ltd.
    Inventor: Kazuyuki Shirai
  • Patent number: 8289453
    Abstract: In one embodiment of the present invention, a method is disclosed for driving a display device by which display of a moving image with natural movement is achieved while occurrence of flicker is minimized or prevented. The method for driving a display device includes a display screen where pixels are arranged in a matrix includes inputting image signals for one frame into the display device at established intervals, writing a gray level in accordance with the signal in each of the pixels, and displaying an image on the screen, wherein interpolation is performed between a first gray level of each of the pixels in accordance with an image signal inputted in a given frame, and a second gray level of each of the pixels in accordance with an image signal inputted in a next frame, whereby the gray level of each of the pixels continuously changes from the first gray level to the second gray level.
    Type: Grant
    Filed: April 18, 2007
    Date of Patent: October 16, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Daisuke Teragawa
  • Patent number: 8125426
    Abstract: In an image displaying apparatus, first and second detecting units detect quantities of light propagating through a light path at two different locations. A variation calculating unit calculates the variation in the light quantity in the light path based on the quantities of light detected by each of the first and second detecting units. A controlling unit controls the quantity of light propagated to the screen if the variation in the light quantity exceeds a predetermined value.
    Type: Grant
    Filed: December 20, 2007
    Date of Patent: February 28, 2012
    Assignee: Mitsubishi Electric Corporation
    Inventors: Akihiro Nagase, Jun Someya, Hiroaki Sugiura, Hiroshi Sasaki
  • Patent number: 8089559
    Abstract: A method for outputting multimedia files and broadcast contents of a selected television (TV) channels on the DPF in a picture-in-picture (PIP) output mode is provided. The method includes: starting the PIP output mode when the DPF plays multimedia files under a DPF mode; defining a PIP region on the DPF; receiving broadcasts of a selected TV channel; and outputting the multimedia files and the broadcast contents of the selected TV channel in the PIP output mode. A related DPF is also provided.
    Type: Grant
    Filed: December 24, 2008
    Date of Patent: January 3, 2012
    Assignees: Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd., Hon Hai Precision Industry Co., Ltd.
    Inventors: Chia-Yu Cheng, Li-Hua Hu, Kuan-Hong Hsieh, Han-Che Wang, Zai-An Pan, Shin-Hong Chung
  • Publication number: 20110141370
    Abstract: The present invention is arranged such that interlace image data, which has been supplied, is converted to progressive image data in an I/P conversion section, and the image data converted to progressive style in the I/P conversion section is subjected to image processing including data comparison in spatial or time series manner, in an image processing section.
    Type: Application
    Filed: February 22, 2011
    Publication date: June 16, 2011
    Inventors: Kazunari Tomizawa, Makoto Shiomi, Hidekazu Miyata, Koichi Miyachi, Akihito Jinda
  • Patent number: 7903178
    Abstract: A color management unit is architected to achieve higher-quality appearance used in various video formats and to enable improvements in picture contrast and colorfulness. The color management unit comprises an optional input color space converter to convert the input digital video to a desired color space, an adaptive contrast enhancer to apply contrast improvement algorithms in response to different scenes in either manual or automatic modes, intelligent color remapping for enhancing selected colors, sRGB compliance to produce a video display that is uniform over different monitors, global color and brightness controls to combine global processing and color conversion, gamut compression to maintain pixel validity in color space conversion, and gamma correction to compensate for nonlinear characteristics of an output display.
    Type: Grant
    Filed: May 25, 2010
    Date of Patent: March 8, 2011
    Assignee: Marvell International Ltd.
    Inventors: Nikhil Balram, Sujith Srinivasan, Bipasha Ghosh, Sanjay Garg
  • Publication number: 20100302447
    Abstract: According to the present invention, there is provided an image display device for displaying acquired image information including: an information acquisition section for acquiring image information and information associated with the image information by communication from an external device; an adjustment section for executing image quality adjustment processing in relation to display of the image information; and a setting section for setting details of the image quality adjustment processing, based on the information. Therefore, details of the image quality adjustment processing may easily be set automatically in an appropriate manner.
    Type: Application
    Filed: May 25, 2010
    Publication date: December 2, 2010
    Applicant: SANYO ELECTRIC CO., LTD.
    Inventor: Kazuyuki Shirai
  • Patent number: 7808556
    Abstract: The invention provides a video system comprising at least one input for receiving incoming video data and at least one output for delivering outgoing video data to a display device. The system further comprises at least one processor for converting the incoming video data into outgoing video data as a function at least of one item of information delivered by a detecting element. According to an embodiment of the invention, the detecting element is suitable for measuring at least one colorimetric characteristic of an image produced by the display device. According to another embodiment of the invention, the processor converts incoming video data into outgoing video data as a function at least of one item of information delivered by a user. In one embodiment of the invention, the information delivered by the user represents a desired calorimetric response for different incoming data.
    Type: Grant
    Filed: November 8, 2004
    Date of Patent: October 5, 2010
    Assignee: Thomson Licensing
    Inventor: Antoine Simkine
  • Patent number: 7746411
    Abstract: A color management unit is architected to achieve higher-quality appearance used in various video formats and to enable improvements in picture contrast and colorfulness. The color management unit comprises an optional input color space converter to convert the input digital video to a desired color space, an adaptive contrast enhancer to apply contrast improvement algorithms in response to different scenes in either manual or automatic modes, intelligent color remapping for enhancing selected colors, sRGB compliance to produce a video display that is uniform over different monitors, global color and brightness controls to combine global processing and color conversion, gamut compression to maintain pixel validity in color space conversion, and gamma correction to compensate for nonlinear characteristics of an output display.
    Type: Grant
    Filed: December 7, 2005
    Date of Patent: June 29, 2010
    Assignee: Marvell International Ltd.
    Inventors: Nikhil Balram, Sujith Srinivasan, Bipasha Ghosh, Sanjay Garg
  • Patent number: 7679684
    Abstract: During adjustment of a white balance, images having different white balances are displayed respectively on a plurality of regions on the screen 201 of the display 200, based on the red video signal Rout, the green video signal Gout and the blue video signal Bout output from the gamma correction device 30. After that, an user selects any of the plurality of regions by comparing the plurality of images having the different white balances displayed on the regions A to I on the screen 201 of the display 200 and pressing a touch panel on the screen 201. The image on the selected region is displayed on the entire screen 201 of the display 200, based on the red video signal Rout, the green video signal Gout and the blue video signal Bout output from the gamma correction device 30.
    Type: Grant
    Filed: February 8, 2005
    Date of Patent: March 16, 2010
    Assignee: Panasonic Corporation
    Inventors: Susumu Miura, Takahisa Hatano, Kosho Suzuki
  • Patent number: 7548279
    Abstract: In the event that the maximum Imax of R, G, B color signals is detected and the maximum value Imax is equal to or higher than the suppression start level Vcs which is lower than a predetermined level to be restricted, a suppression gain is generated in accordance with the value of this maximum Imax, and by this suppression gain Gc, R, G, B color signals to be inputted are simultaneously suppressed. By this, color signals can be restricted to the predetermined range and outputted without impairing white balance.
    Type: Grant
    Filed: December 19, 2005
    Date of Patent: June 16, 2009
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Hirotoshi Miyazawa, Akihiro Matsumoto
  • Publication number: 20090128704
    Abstract: The present invention provides a display apparatus, comprising: a light source or light sources for emitting a luminous flux or luminous fluxes having a plurality of colors; a spatial light modulator for modulating the luminous flux(es) having a plurality of colors incoming from the light sources; and controller for processing video image input data, which is input, and controlling the light source(s) and the spatial light modulator, wherein the controller generates a plurality of video image signals of colors constituting a video image based on the video image input data, and controls the light source(s) so as to cause the light source(s) having at least two colors, from among the light source(s) having a plurality of colors, to perform pulse emission in sequence and modulate the pulse emission during a period shorter than a modulation period controlled under the spatial light modulator is with the video image signal of one color from among the video image signals.
    Type: Application
    Filed: October 1, 2008
    Publication date: May 21, 2009
    Inventors: Taro Endo, Kazuma Arai, Yoshihiro Maeda, Fusao Ishii
  • Patent number: 7190410
    Abstract: Denoting a maximum value of three primary color signals RGB by Max, a minimum value by Min, and coefficients by a and b, the color temperature of only colors close to achromatic colors is changed by adding (a*Min?b*Max) to the signal B. Denoting a luminance level by Y, and coefficients by c and d, the color temperature of only colors close to achromatic colors is changed by adding (c*Y?d*(Max?Min)) to the signal B. Color temperature of only colors close to achromatic colors is changed by multiplying the signal B by a coefficient based on a value of (Man?Min)/Max, which represents saturation.
    Type: Grant
    Filed: July 12, 2004
    Date of Patent: March 13, 2007
    Assignee: Canon Kabushiki Kaisha
    Inventor: Kohei Inamura
  • Patent number: 7071998
    Abstract: Disclosed is a white balance regulating device, including a cut-off value adjusting portion for adjusting and outputting a cut-off value of an analog image signal which is input as a first pattern; an A/D converter for converting the analog image signal, in which the cut-off value is adjusted, into a digital image signal; a detecting portion for detecting a least significant bit of each tristimulus value of the digital image signal; a controlling portion for upwardly regulating a level of a variable register of the cut-off value adjusting portion from a level corresponding to a preset first initial cut-off value until the least significant bit becomes different from the first initial cut-off value and setting the level of the variable register just before the least significant bit becomes different from the first initial cut-off value as a first cut-off value; and a storing portion for storing the first cut-off value.
    Type: Grant
    Filed: May 15, 2003
    Date of Patent: July 4, 2006
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Ho-woong Kang
  • Patent number: 7015980
    Abstract: An apparatus for converting color temperature in a color display system, and a method thereof. A first color temperature converting factor unit has a first color temperature converting factors for converting a first predetermined color temperature to a particular color temperature, and a second color temperature converting factor unit has a first color temperature converting factors for converting the particular color temperature to a second predetermined color temperature. A color temperature converting factor creating unit makes a color temperature converting factor for converting an input color temperature to an aiming color temperature based on a first converting factor selected from the first color temperature converting factors according to the input color temperature and based on a second converting factor selected from the second color temperature converting factors according to the input aiming color temperature.
    Type: Grant
    Filed: February 4, 2002
    Date of Patent: March 21, 2006
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Guen-sik Jang, Bong-soon Kang
  • Patent number: 6909463
    Abstract: In a camera and method, a white-compensator propagates neutral light at a preset color temperature independent of a displayed electronic image. The camera has a body and an electronic imager disposed in the body. The imager generates an electronic image responsive to an incident light image. A display is disposed on the outside of the body. The display is operatively connected to the imager. The white-compensator neighbors the display.
    Type: Grant
    Filed: December 22, 2000
    Date of Patent: June 21, 2005
    Assignee: Eastman Kodak Company
    Inventor: Kenneth A. Parulski
  • Patent number: 6710821
    Abstract: A white balance adjusting apparatus includes a test signal source 13 for generating a black signal for testing and a white signal for testing, a first impedance means 1 for converting currents flowing through three drive transistors for amplifying primary color R, G, B signals into voltages, a second impedance means 5 connected in parallel with the first impedance means, a switch 6 which is selectively closed to flow a current through the second impedance means, a reference voltage source 7 for generating a first reference voltage at the time of performing the cut-off adjustment and a second reference voltage at the time of performing the drive adjustment, a comparator 8 for comparing the levels between the reference voltages of the reference voltage sources and the output voltage converted by the first or second impedance means, and a microcomputer 75 which generates a control signal for adjusting the white balance on the basis of the output signal of the comparator and adjusts the DC level and the AC level
    Type: Grant
    Filed: June 25, 1999
    Date of Patent: March 23, 2004
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Ikuo Osawa, Takemi Beppu, Kenichi Nakajima
  • Publication number: 20040008283
    Abstract: The present invention relates to a method and an apparatus for adaptive compensation of chrominance, aiming at the optimization of colors of electronic images. The invention includes the experimental data obtained when the best viewing effects are achieved, the division of color-gamut cells according to visual characteristics, the preset compensation characteristics that have different amplifications for different color-gamut cells, the real-time recognition of color-gamut cells that the signals belong to, and appropriate compensation that is done according to the color-gamut cells. The characteristic of the compensation is that each pixel gets its own amplification dynamically, which makes the dominant wavelength, chroma and relative brightness of all the image colors meet the requirement of best self-adaptive color reproduction automatically. As a result, colorful images with high qualities can be acquired.
    Type: Application
    Filed: July 24, 2003
    Publication date: January 15, 2004
    Inventors: Yanhua Yang, Ruihong Li
  • Publication number: 20030214606
    Abstract: Disclosed is a white balance regulating device, including a cut-off value adjusting portion for adjusting and outputting a cut-off value of an analog image signal which is input as a first pattern; an A/D converter for converting the analog image signal, in which the cut-off value is adjusted, into a digital image signal; a detecting portion for detecting a least significant bit of each tristimulus value of the digital image signal; a controlling portion for upwardly regulating a level of a variable register of the cut-off value adjusting portion from a level corresponding to a preset first initial cut-off value until the least significant bit becomes different from the first initial cut-off value and setting the level of the variable register just before the least significant bit becomes different from the first initial cut-off value as a first cut-off value; and a storing portion for storing the first cut-off value.
    Type: Application
    Filed: May 15, 2003
    Publication date: November 20, 2003
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Ho-Woong Kang
  • Publication number: 20030202121
    Abstract: Provided are a method of and a system for converting color temperatures of visual contents to user's preferred color temperatures by using metadata of the visual contents. The system includes an image color temperature recording unit, a user preferable color temperature managing unit, and a color temperature adjusting unit. The image color temperature recording unit time-divides the visual contents according to a color temperature description format, estimates color temperatures of time-divided sections, and records the estimated color temperatures as first metadata. The user preferable color temperature managing unit determines user's preferable color temperatures of the time-divided sections, records the user's preferable color temperatures as second metadata, and outputs the user's preferable color temperatures. The color temperature adjusting unit converts the estimated color temperatures of the first metadata based on the user's preferable color temperatures of the second metadata.
    Type: Application
    Filed: March 3, 2003
    Publication date: October 30, 2003
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Young-sik Huh, Du-sik Park, Ki-won Yoo, Sang-kyun Kim
  • Publication number: 20030137606
    Abstract: A method (400) and a system (100) for providing video signals to video displays includes the steps of receiving at least one input video signal (150), dithering the non-uniformity color correction (445), applying the non-uniformity color correction to the input video signal to generate a color corrected video signal (450), and increasing a frame rate of the color corrected video signal (120). Gamma correction (125) can be applied to the color correction. Generating a dithered non-uniformity color correction can include selecting from a data storage (115) a plurality of RGB correction matrices (300), measuring at least one brightness level of the input video signal, selecting for the picture level correction a first RGB correction matrix if the brightness is within a first range of values (425), a second RGB correction matrix if the brightness is within a second range of values (435), and interpolating (440) the plurality of RGB correction matrices if the brightness is within a third range of values.
    Type: Application
    Filed: May 9, 2002
    Publication date: July 24, 2003
    Inventors: Mark Francis Rumreich, Daniel Mark Hutchinson, John Alan Hague
  • Patent number: 6580464
    Abstract: The present invention provides a color difference signal correction apparatus for correcting color difference of parts having no color, particularly white characters, which can make the correction with high accuracy also for images including lightly colored parts.
    Type: Grant
    Filed: November 27, 2000
    Date of Patent: June 17, 2003
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Hisao Kunitani, Atsuhisa Kageyama, Katsuya Ishikawa
  • Publication number: 20030107680
    Abstract: A method and system are provided for balance control for component video signals. The system and method of the present disclosure allow for adjusting or compensating for possible color encoding errors, as well as allowing individual viewer preferences to be accommodated, in consumer electronics devices, such as high definition monitors and other imaging devices and appliances. The system includes circuitry for receiving the U and V component video signals and outputting balance adjusted component color difference signals Uout and Vout.
    Type: Application
    Filed: December 6, 2001
    Publication date: June 12, 2003
    Applicant: Koninklijke Philips Electronics N.V.
    Inventor: William G. Miller
  • Patent number: 6556254
    Abstract: In a black and white level stabilization device, an OSD signal generator (OSD-SG) generates black and white reference signals (OSD-R/G/B), amplifying circuits (VA-R/G/B) amplify the black and white reference signals (OSD-R/G/B) or RGB signals (Ri, Gi, Bi), and a measuring circuit (PNP-R/G/B, RM), coupled to the amplifying circuits (VA-R/G/B), measures a white level and a black level in response to the black and white reference signals (OSD-R/G/B).
    Type: Grant
    Filed: August 2, 1999
    Date of Patent: April 29, 2003
    Assignee: Koninklijke Philips Electronics N.V.
    Inventor: Augusto Palmero
  • Patent number: 6529247
    Abstract: A detector circuit detects a voltage corresponding to the leakage current that flows through the cathode electrode of a color display during a vertical blanking period of a video signal. The voltage detected is held in a first sample-and-hold circuit. Meanwhile, a reference signal corresponding to the reference black level is input during a part of the vertical blanking period of the video signal. A voltage corresponding to the leakage current that flows through the cathode electrode of the color display during the part of the vertical blanking period is detected by the detector circuit and then held in a second sample-and-hold circuit. The voltage held in the first sample-and-hold is subtracted from the voltage held in the second sample-and-hold circuit. A comparator circuit compares the difference between these voltages with a reference voltage. The result of the comparison controls a cutoff adjustment circuit for adjusting a DC level of the video signal.
    Type: Grant
    Filed: June 4, 2002
    Date of Patent: March 4, 2003
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Reiji Tagomori, Kenji Hara, Hajime Sumiyoshi
  • Patent number: 6437833
    Abstract: A detector circuit detects a voltage corresponding to the leakage current that flows through the cathode electrode of a color display during a vertical blanking period of a video signal. The voltage detected is held in a first sample-and-hold circuit. Meanwhile, a reference signal corresponding to the reference black level is input during a part of the vertical blanking period of the video signal. A voltage corresponding to the leakage current that flows through the cathode electrode of the color display during the part of the vertical blanking period is detected by the detector circuit and then held in a second sample-and-hold circuit. The voltage held in the first sample-and-hold is subtracted from the voltage held in the second sample-and-hold circuit. A comparator circuit compares the difference between these voltages with a reference voltage. The result of the comparison controls a cutoff adjustment circuit for adjusting a DC level of the video signal.
    Type: Grant
    Filed: November 17, 1999
    Date of Patent: August 20, 2002
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Reiji Tagomori, Kenji Hara, Hajime Sumiyoshi
  • Patent number: 6429905
    Abstract: An automatic white balance adjustment system including a color signal reproduction circuit having a white balance adjustment section, a picture tube drive circuit, a picture tube, a cathode voltage detection circuit, a storage circuit, and a control circuit. The cathode voltage detection circuit detects a cathode voltage applied to a red cathode electrode, a cathode voltage applied to a green cathode electrode, and a cathode voltage applied to a blue cathode electrode of the picture tube. In the storage circuit, there are stored in advance comparison reference values set for the RGB primary color signals in order to control the RGB primary color signals so as to achieve a white balance in a given ratio.
    Type: Grant
    Filed: October 1, 1999
    Date of Patent: August 6, 2002
    Assignee: Funai Electric Co., Ltd.
    Inventor: Kazuhiko Yamamoto
  • Patent number: 6400417
    Abstract: In a method for controlling color temperature a projection television having green, blue and red image projectors and a projection screen, holographically improving color shift performance of the screen results in an undesirable controlled input angle characteristic that attenuates images projected thereon at horizontal viewing angles of a few degrees from an axis orthogonal to the screen. Projecting blue images along an optical axis orthogonally aligned with the projection screen and projecting green and red along respective optical axes converging toward the orthogonally aligned optical axis makes it possible to energize the blue and green image projectors at substantially equal energy levels when producing a white image on the screen.
    Type: Grant
    Filed: July 18, 2000
    Date of Patent: June 4, 2002
    Assignee: Thomson Licensing S.A.
    Inventors: Estill Thone Hall, Jr., Wendy Rene Pfile