Color Patents (Class 348/496)
  • Patent number: 8850714
    Abstract: A chromaticity correction device corrects chromaticity of a video signal displayed on a display panel of a display device to correspond to a change in a luminance value of the display panel. The chromaticity correction device includes a luminance detection unit which detects the luminance value, a backlight driving level detection unit which detects a backlight driving level, a temperature detection unit which detects an internal device temperature or an ambient temperature, a reference luminance value calculation unit which estimates a reference luminance value in a characteristic of an initial state, a chromaticity calculation unit which obtains a chromaticity change amount of white point chromaticity and estimated white point chromaticity that is an estimated value of current white point chromaticity, a chromaticity correction value calculation unit which obtains a chromaticity correction value and a chromaticity correction circuit which corrects the chromaticity of the video signal.
    Type: Grant
    Filed: September 30, 2011
    Date of Patent: October 7, 2014
    Assignee: NEC Display Solutions, Ltd.
    Inventor: Katsuyuki Matsui
  • Patent number: 8525928
    Abstract: A signal transmission system includes a transmission apparatus and a reception apparatus, the transmission apparatus including: a first portion that converts a video signal into differential signals, converts a vertical synchronization signal into a common mode signal, and transmits the converted signals to the reception apparatus via three pairs of signal lines; and a second portion that converts a horizontal synchronization signal into differential signals, converts a first console signal into a common mode signal, transmits the converted signals to the reception apparatus via a single pair of signal lines; the reception apparatus including: a third portion that restores the differential signals to the video signal, and restores the common mode signal to the vertical synchronization signal; and a fourth portion that restores the differential signals to the horizontal synchronization signal, and restores the common mode signal to the first console signal.
    Type: Grant
    Filed: August 9, 2010
    Date of Patent: September 3, 2013
    Assignee: Fujitsu Component Limited
    Inventor: Masato Ozawa
  • Patent number: 8482602
    Abstract: Non-destructive imaging of an object. An imaging head supported on a rotatable arm samples an electric field scattered by the object at a plurality of locations as the arm rotates about a central axis, with the locations corresponding to a defined spatial domain located remotely from the object. One or more processors execute computer-readable instructions for controlling rotation of the arm and generating a multi-dimensional profile representative of the object in the defined spatial domain based on the sampling.
    Type: Grant
    Filed: November 13, 2009
    Date of Patent: July 9, 2013
    Assignee: The Curators of the University of Missouri
    Inventors: David Johannes Pommerenke, Reza Zoughi, Mohammad Tayeb Ghasr, Joseph Tobias Case, Andrew Dale McClanahan, Kyle Lee Guinn
  • Patent number: 8421815
    Abstract: A system and method for displaying an image are provided. In one embodiment, the method includes receiving a data stream representing a frame of an image. The data stream may indicate a first color pixel cluster corresponding to a first color and a second color pixel cluster corresponding to a second color. The first color pixel cluster and the second color pixel cluster may be displayed. The first color pixel cluster may be different from the second color pixel cluster.
    Type: Grant
    Filed: August 6, 2012
    Date of Patent: April 16, 2013
    Assignee: Texas Instruments Incorporated
    Inventors: Andrew G. Huibers, Michael T. Davis, Henry W. Neal, James N. Hall
  • Patent number: 7864189
    Abstract: In one embodiment, the present invention includes a method to convert a pixel tuple in a red, green, blue (RGB) color space having R, G, and B color values into a human recognizable color name corresponding to a range of numerical values of a linear color palette scale based on application of the RGB color values to a predetermined set of hierarchical rules. Other embodiments are described and claimed.
    Type: Grant
    Filed: July 23, 2007
    Date of Patent: January 4, 2011
    Assignee: Intel Corporation
    Inventor: Robert Vaughn
  • Patent number: 7456842
    Abstract: A method and system for determining surface topology of a three-dimensional (3D) structure, based on a structured pattern that is projected onto the surface structure, and images of the pattern superposed on the structured surface are analysed to provide surface coordinates of the structure. The pattern comprises a plurality of unique color edges defined between pairs of differently-colored stripes, which substantially overcomes ambiguity problems. In one embodiment, a calibration method is provided enabling the surface coordinates to be obtained from a single image of the structure.
    Type: Grant
    Filed: September 9, 2004
    Date of Patent: November 25, 2008
    Assignees: C.M.D. Controlled Micro Devices Ltd., Cyber Vision (2004) Ltd.
    Inventor: Samuel Kosolapov
  • Publication number: 20080218633
    Abstract: The first device receives the video signal to encode a horizontal sync signal and a vertical sync signal of the video signal into a composite sync signal, compresses the composite sync signal into one of three color signals of the video signal, and transmits the three color signals. The second device is in communication with the first device, decompresses the composite sync signal from the compressed color signal, and decodes the horizontal sync signal and the vertical sync signal from the composite sync signal. A method for transmitting video signals and a KVM device are also disclosed.
    Type: Application
    Filed: March 7, 2007
    Publication date: September 11, 2008
    Inventors: Fu-Chin Shen, Chia-Cheng Liu
  • Patent number: 6748005
    Abstract: A system and method to provide cost effective, portable and convenient access to the Internet and other personal computer applications from any location within a predetermined distance from a desktop personal computer (PC). According to one aspect, a compact handheld terminal functions as a user interface device and communicates via an FM frequency hopped radio link with a base station which is located near and connected with the desktop PC. The handheld terminal allows home users to conveniently and remotely interface with their desktop PC with a freedom of movement similar to that of using a laptop PC while allowing an inexpensive network connection. The FM frequency hopped radio link carries the appropriate video, audio, keyboard and mouse signals between the desktop PC and the handheld terminal. The approach may be adapted to short range transfer of high quality video in a variety of applications.
    Type: Grant
    Filed: November 23, 1999
    Date of Patent: June 8, 2004
    Assignee: Lucent Technologies Inc.
    Inventors: Habib Riazi, Michael Anthony Zuniga
  • Patent number: 6583896
    Abstract: A low cost image reading apparatus and an image reading method is obtained which allows a high speed image reading process to be performed. When a frame image recorded on a negative film is read, the amount of light of a lamp and the charge accumulation time of a CCD area sensor provided in the prescan section of a film image reading apparatus are fixed. An image buffer is also provided for holding the density values data (the image data) obtained by the fine scan section until the auto setup processing and positive image examination, which are based on the density values data, are completed.
    Type: Grant
    Filed: August 26, 1999
    Date of Patent: June 24, 2003
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Kenji Suzuki, Yoshio Ozawa, Hideo Ishizaka
  • Patent number: 6335734
    Abstract: In addition to linear conversion parameters V1 to V8 which are used in an interpolation calculation, non-linear conversion parameters VV1 to VV8 are calculated. Each time an input color is fetched, whether the linear conversion parameters are used or the non-linear conversion parameters are used is discriminated. The interpolation calculation of a high precision using the non-linear conversion parameters is performed for a region where it is necessary to guarantee a gradation, thereby preventing a reversal of an output color in a region including an achromatic gradation axis. Regions other than such a region are processed by the interpolation calculation using the linear conversion parameter at a high speed.
    Type: Grant
    Filed: May 4, 1999
    Date of Patent: January 1, 2002
    Assignee: Fujitsu Limited
    Inventors: Akiko Nagae, Masayoshi Shimizu, Shoji Suzuki