Color Memory Patents (Class 345/549)
  • Patent number: 7940280
    Abstract: A method of converting an input color codeword from a first color format to a second color format comprises providing a reference format having reference bit positions and comparing the first bit positions associated with the first color format to the reference bit positions. Second bit positions associated with the second color format are compared to the reference bit positions. The relative bit position shifts based on the compared first bit positions and the compared second bit positions are determined. Format conversion bit masks are then generated based on the first and second color formats and the determined relative bit position shifts. The input color codeword is converted to the second color format based on the format conversion bit masks and the relative bit position shifts.
    Type: Grant
    Filed: December 6, 2007
    Date of Patent: May 10, 2011
    Assignee: Seiko Epson Corporation
    Inventors: Graham Sellers, Benjamin Vinegar
  • Patent number: 7936358
    Abstract: In one embodiment, a display device comprises a timing controller, a first computer readable memory medium coupled to the timing controller and comprising a first color table, a video processor coupled to the timing controller via a communication link and comprising logic to request the first color table from the timing controller, and use data in the first color table to implement a color correction routine.
    Type: Grant
    Filed: April 27, 2007
    Date of Patent: May 3, 2011
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventor: Leonard Tsai
  • Patent number: 7924291
    Abstract: A display color-correcting system is provided. Color response values are measured that go into the vertices of polyhedra in a cubic color output space of the display. A set of corresponding values for the display is built from intermediate values determined between the measured color response values. The intermediate values are determined by decomposition and interpolation of interpolation volumes in the cubic color output space. Each of the interpolation volumes is the combined volume of a selected polyhedron within the cubic color output space and a predetermined volume of space between the selected polyhedron and the next polyhedron within the cubic color output space. The set of corresponding values is converted into decoupled RGB adjustment values that specify the RGB signals independently for the display to produce corrected colors. The RGB adjustment values are saved into one or more look-up tables.
    Type: Grant
    Filed: June 23, 2010
    Date of Patent: April 12, 2011
    Assignee: Apple Inc.
    Inventors: Gabriel G. Marcu, Wei Chen
  • Publication number: 20110063302
    Abstract: The graphics co-processing technique includes rendering a frame of red, green, blue (RGB) data on a graphics processing unit on an unattached adapter. The frame of RGB data are converted on the graphics processing unit on the unattached adapter to luminance-color difference (YUV) data. The YUV data is copied from frame buffers of the graphics processing unit on the unattached adapter to buffers in system memory. The YUV data is copied from the buffers in the system memory to texture buffers of a graphics processing unit on a primary adapter. A frame of RGB data is recovered from the YUV data in the texture buffer of the graphics processing unit on the primary adapter. The recovered frame of RGB data may then be presented by the graphics processing unit on the primary adapter on the primary display.
    Type: Application
    Filed: December 30, 2009
    Publication date: March 17, 2011
    Applicant: NVIDIA CORPORATION
    Inventor: Franck Diard
  • Patent number: 7903123
    Abstract: A programmable system for dithering video data. The system is operable in at least two user-selectable modes which can include a small kernel mode and a large kernel mode. In some embodiments, the system is operable in at least one mode in which it applies two or more kernels (each from a different kernel sequence) to each block of video words. Each kernel sequence repeats after a programmable number of the blocks (e.g., a programmable number of frames containing the blocks) have been dithered. The period of repetition is preferably programmable independently for each kernel sequence. The system preferably includes a frame counter for each kernel sequence. Each counter generates an interrupt when the number of frames of data dithered by kernels of the sequence has reached a predetermined value. In response to the interrupt, software can change the kernel sequence being applied. Typically, the system performs both truncation and dithering on words of video data.
    Type: Grant
    Filed: December 14, 2007
    Date of Patent: March 8, 2011
    Assignee: NVIDIA Corporation
    Inventors: Jonah M. Alben, Stephen Lew
  • Patent number: 7884833
    Abstract: There is provided a method of changing a theme for a user interface of a computer system comprising receiving an identification of an image with which to define a color palette of a theme for rendering elements of a user interface on a color display of the computer system; analyzing the image to determine at least one predominant color; and defining the color palette in response to the analysis. The image may comprise a background image selected by a user for display by the computer system. Dynamic generation of the color palette matches the user interface to colors to provide flexible and appealing themes. A computer readable memory having recorded thereon instructions to carry out this method is also provided, as well as a device comprising such memory.
    Type: Grant
    Filed: November 13, 2009
    Date of Patent: February 8, 2011
    Inventors: Gerhard Dietrich Klassen, Shaul S. Wisebourt, Lawrence Edward Kuhl
  • Patent number: 7884964
    Abstract: Methods and systems in an image processing device for controlling colors that are located external to a gamut are disclosed. A plurality of color values can be automatically provided as input to said image processing device, wherein said image processing device is under a control of a particular dimensional order, typically a three-dimensional order, but alternatively can be a two-dimensional order. Next, an operation can be performed dynamically determining which color value among the plurality of color values has attained a gamut limit. Thereafter, the particular dimensional order can be automatically reduced, thereby providing improved control for colors that are located external to said gamut. The plurality of color values analyzed is generally associated with three colors—cyan, magenta, and yellow.
    Type: Grant
    Filed: August 5, 2003
    Date of Patent: February 8, 2011
    Assignee: Xerox Corporation
    Inventors: Martin S. Maltz, Raja Bala, Lalit K. Mestha
  • Publication number: 20110007084
    Abstract: A method and apparatus is provided for controlling a dual display using a Red, Green and Blue (RGB) interface in a mobile terminal with a projector module, in which the projector module expends a high-resolution image and projects the expended image to the outside, a display displays a menu image for operation of the projector module, an image processor has a first buffer assigned to the display for data transmission to the display, and a second buffer assigned to the projector module for data transmission to the projector module, and a controller transmits image data to the first and second buffers, and outputs control signals for activating both or a selected one of the first and second buffers, depending on selection of a display mode.
    Type: Application
    Filed: July 8, 2010
    Publication date: January 13, 2011
    Inventors: Byeong-Hoon Park, Sung-Soon Kim
  • Patent number: 7852350
    Abstract: An antialiasing method includes: providing a first fragment; computing a first coverage area representing a portion of the first fragment covered by a first primitive; providing a second fragment juxtaposed to the first fragment and at least partially covered by a second primitive; processing the first coverage area to obtain a corrected coverage area indicative of a visible first fragment portion resulting from the juxtaposition of the fragments; and applying an antialiasing procedure based on the corrected coverage area.
    Type: Grant
    Filed: July 26, 2007
    Date of Patent: December 14, 2010
    Assignee: STMicroelectronics S.r.l.
    Inventors: Massimiliano Barone, Davide Terruzzi
  • Publication number: 20100302233
    Abstract: An underwater diving simulation system includes at least three surface electronics units defining a diving area in proximity to a desired dive location. Each surface electronics unit includes a microprocessor-controlled transceiver that receives x-y-z position data from an underwater acoustical transponder located on a diver who is located in the diving area. The system provides user selectable, variable underwater virtual reality data to the diver via a communication link. A plurality of sensors in proximity to the diver's head transmits real-time rate of change, horizontal and vertical position of the diver's head to a signal decoder located on at least one of the surface electronics units via said communication link. A pair of projectors and optical elements are typically provided, one for each of the diver's eyes on a diving mask.
    Type: Application
    Filed: May 26, 2009
    Publication date: December 2, 2010
    Inventor: David Ames HOLLAND
  • Patent number: 7830393
    Abstract: In the case where a previous character (P1) is cleared on a screen (20) and a new character (P2) is displayed on the right of the previous one, first, image data to be transferred (P2) is prepared in a source image memory. Next, a write start address (W) is set at the head of a bit sequence of a left clearance width (LC)×BPP, which precedes the destination address (T) of a frame buffer into which the head (S) of the image data (P2) is to be written. After that, a series of burst transfer repeatedly copies clearance data held in a register into a region of the left clearance width (LC), starting from the write start address (W), and subsequently writes one line (a transfer width (W1)×BPP) of the image data (P2). The write start address is incremented by a frame width (FW)×BPP.
    Type: Grant
    Filed: October 12, 2005
    Date of Patent: November 9, 2010
    Assignee: Panasonic Corporation
    Inventor: Yorihiko Wakayama
  • Patent number: 7830397
    Abstract: According to some embodiments, systems, methods, apparatus, computer program code and means are provided to set a first depth value associated with a plurality of pixels of a video image comprising a plurality of planes, create a first clear rectangle with respect to the first depth value, color render the pixels that are not associated with the first clear rectangle, and render the plurality of planes.
    Type: Grant
    Filed: July 28, 2009
    Date of Patent: November 9, 2010
    Assignee: Intel Corporation
    Inventors: Prasoonkumar Surti, Hong Jiang, Steven J. Spangler
  • Patent number: 7817163
    Abstract: A method and system for rendering a desktop on a computer using a composited desktop model operating system are provided. A composited desktop window manager, upon receiving base object and content object information for one or more content objects from an application program, draws the window to a buffer memory, and takes advantage of advanced graphics hardware and visual effects to render windows based on content on which they are drawn. The frame portion of each window may be generated by pixel shading a bitmap having the appearance of frosted glass based on the content of the desktop on top of which the frame is displayed. Legacy support is provided so that the operating system can draw and render windows generated by legacy applications to look consistent with non-legacy application windows.
    Type: Grant
    Filed: October 23, 2003
    Date of Patent: October 19, 2010
    Assignee: Microsoft Corporation
    Inventors: Scott Hanggie, Victor Tan, Gerardo Bermudez, Gregory D. Swedberg
  • Patent number: 7705856
    Abstract: A coloring support system suitable for realizing coloring that matches colors imaged by a user is provided. A coloring support apparatus 100 inputs document data forming a document and acquires, on the basis of the document data inputted, color information concerning colors applied to the document. The coloring support apparatus 100 judges, on the basis of the color information acquired, coloring rules that match coloring applied to the document among coloring rules in a coloring rule registration DB 10 and matching colors that match the coloring rules among the colors applied to the document. The coloring support apparatus 100 displays, for each of the coloring rules judged, displays a name of the coloring rule and a coloring pallet including the matching color group.
    Type: Grant
    Filed: May 17, 2005
    Date of Patent: April 27, 2010
    Assignee: Seiko Epson Corporation
    Inventors: Toshio Tanaka, Shinji Miwa
  • Patent number: 7692659
    Abstract: One embodiment of the present invention sets forth a technique for improving graphics rendering efficiency by processing pixels in a compressed format whenever possible within a multi-sampling graphics pipeline. Each geometric primitive is rasterized into fragments, corresponding to screen space pixels covered at least partially by the geometric primitive. Fragment coverage represents the pixel area covered by the geometric primitive and determines the weighted contribution of a fragment color to the corresponding screen space pixel. Samples associated with a given fragment are called sibling samples and have the same color value. The property of sibling samples having the same color value is exploited to compress and process multiple samples, thereby reducing the size of the associated logic and the amount of data written to and read from the frame buffer.
    Type: Grant
    Filed: November 6, 2006
    Date of Patent: April 6, 2010
    Assignee: NVIDIA Corporation
    Inventors: Steven E Molnar, Daniel P. Wilde, Mark J. French, Robert J. Stoll
  • Publication number: 20100079471
    Abstract: A floating point rasterization and frame buffer in a computer system graphics program. The rasterization, fog, lighting, texturing, blending, and antialiasing processes operate on floating point values. In one embodiment, a 16-bit floating point format consisting of one sign bit, ten mantissa bits, and five exponent bits (s10e5), is used to optimize the range and precision afforded by the 16 available bits of information. In other embodiments, the floating point format can be defined in the manner preferred in order to achieve a desired range and precision of the data stored in the frame buffer. The final floating point values corresponding to pixel attributes are stored in a frame buffer and eventually read and drawn for display. The graphics program can operate directly on the data in the frame buffer without losing any of the desired range and precision of the data.
    Type: Application
    Filed: December 7, 2009
    Publication date: April 1, 2010
    Applicant: GRAPHICS PROPERTIES HOLDINGS, INC.
    Inventors: John M. Airey, Mark S. Peercy, Robert A. Drebin, John Montrym, David L. Dignam, Christopher J. Migdal, Danny D. Loh
  • Patent number: 7688333
    Abstract: An apparatus including a first circuit, a second circuit and a third circuit. The first circuit may be configured to collect color statistics. The second circuit may be configured to sort colors based upon the color statistics collected by the first circuit. The third circuit may be configured to generate a mapping function between the sorted colors and a color space of a receiving standard.
    Type: Grant
    Filed: February 28, 2007
    Date of Patent: March 30, 2010
    Assignee: LSI Corporation
    Inventors: Gregory R. Maertens, Diego Vianello
  • Patent number: 7675525
    Abstract: A method, graphics card, system, and data stream for generating a deep pixel display on a display device are provided. A first set of data relating to a region associated with a display is provided. The first set of data is processed to define a pixel definition. A second set of data relating to the first pixel is determined. At least one portion of the first set of data is rearranged to form at least a portion of the second set of data. A deep pixel is defined based upon the second set of data. The present invention also includes a system that includes a display controller that is adapted to define a deep pixel based upon rearranging the portion of the first set of data.
    Type: Grant
    Filed: December 3, 2008
    Date of Patent: March 9, 2010
    Assignee: Apple Inc.
    Inventor: Ian Hendry
  • Patent number: 7671868
    Abstract: A method of displaying information to relate level of severity or importance comprising the steps of (a) displaying data points; (b) coloring said data points in varying colors according to set levels; and (c) adjusting shades of said colors depending on further defined levels within said set levels. Another method of displaying information to relate level of severity or importance comprising the steps of (a) querying disparate information systems with a certain search parameter (b) displaying data points returned from said search parameter into a single window; (c) coloring said data points in varying colors according to set levels; and (d) adjusting shades of said colors depending on further defined levels within said set levels. A system for displaying information according to level of importance or severity comprising a database, a worklist and an interface wherein said interface conveys level of importance or severity using varying shades of colors.
    Type: Grant
    Filed: February 26, 2007
    Date of Patent: March 2, 2010
    Assignee: General Electric Company
    Inventors: Mark Masao Morita, William Douglas Hughes
  • Publication number: 20100045690
    Abstract: A display system that achieves a gamma characteristic different than 1, such as a gamma characteristic of 2 for example. The gamma characteristic may be selectable and it may be selectable via timing characteristics rather than by varying the intensity of the light source. Defective memory registers are also compensated for by selecting them to store bits of relatively lower significance.
    Type: Application
    Filed: January 4, 2008
    Publication date: February 25, 2010
    Inventors: Mark A. Handschy, James M. Dallas, Per Harold Larson, David B. Hollenbeck
  • Patent number: 7667712
    Abstract: Whether or not a discoloring motion has been performed by a player character is determined, and a discoloration portion set for the determined discoloring motion is discolored. A discolored mark texture of which the discolored mark pattern is denser and of a thicker color is mapped as a current discoloration value set to the discoloration portion becomes larger. The current discoloration value is added and updated by a discoloration unit set based on the stadium in which the game is performed and the game day weather each time the discoloring motion is performed.
    Type: Grant
    Filed: December 13, 2006
    Date of Patent: February 23, 2010
    Assignee: Namco Bandai Games Inc.
    Inventors: Hironori Sata, Masakazu Yorifuji
  • Patent number: 7663642
    Abstract: Polygon rendering systems for rendering a polygon in an image to be displayed include a rasterizer unit, a first memory buffer, and one or more additional memory buffers. The rasterizer unit is configured to generate one or more low resolution fragments representing a portion of the polygon at a low resolution and one or more high resolution fragments representing a portion of the polygon at one or more higher resolutions. The first memory buffer is configured to store the low resolution fragments as pixels. The first memory buffer is further configured to store data based on the one or more high resolution fragments. The one or more additional memory buffers are configured to store the high resolution fragments as high-resolution sub-pixels.
    Type: Grant
    Filed: January 9, 2006
    Date of Patent: February 16, 2010
    Assignees: Sony Corporation, Sony Electronics, Inc.
    Inventor: Thomas Patrick Dawson
  • Patent number: 7659910
    Abstract: The invention discloses a hue dividing and judging device including a memory unit, a calculation module, and a judgment module. The memory unit is used for storing a look-up table, and the look-up table records N boundaries, wherein the N boundaries includes j+1 operative boundaries for defining j color areas. The calculation module is used for calculating the hue of each pixel of an input image. According to the look-up table, the judgment module is used for judging where the hue of each pixel falls within two of the operative boundaries, so as to judge that the hue of the pixel of the input image falls into which one of the color areas. Accordingly, if there are more operative boundaries recorded in the look-up table, the hue will be divided into more color areas, and the user will have more choices for adjusting the color of the input image.
    Type: Grant
    Filed: March 22, 2007
    Date of Patent: February 9, 2010
    Assignee: Marketech International Corp.
    Inventors: Kai-Hsiang Hsu, Yi-Chia Shan, Tsan-Hung Tsai, Hsu-Chia Kao
  • Patent number: 7646392
    Abstract: There is provided a method of changing a theme for a user interface of a computer system comprising receiving an identification of an image with which to define a color palette of a theme for rendering elements of a user interface on a color display of the computer system; analysing the image to determine at least one predominant color; and defining the color palette in response to the analysis. The image may comprise a background image selected by a user for display by the computer system. Dynamic generation of the color palette matches the user interface to colors to provide flexible and appealing themes. A computer readable memory having recorded thereon instructions to carry out this method is also provided, as well as a device comprising such memory.
    Type: Grant
    Filed: May 3, 2006
    Date of Patent: January 12, 2010
    Assignee: Research in Motion Limited
    Inventors: Gerhard Dietrich Klassen, Shaul S. Wisebourt, Lawrence Edward Kuhl
  • Patent number: 7639263
    Abstract: The values of each possible component output R, G, and B may be pre-computed for all values of each possible component input Y, U, and V. Each contribution of Y, U, and V input may then be loaded into a register and added in parallel, without overflow, resulting in a computationally inexpensive RGB output from a YUV input. In one embodiment, contributions of Y, U, and V to each of R, G, and B are retrieved from pre-computed tables. The YUV contributions for each value of R, G, and B are packed into three data elements and added together in parallel, resulting in a value for an RGB output.
    Type: Grant
    Filed: January 26, 2007
    Date of Patent: December 29, 2009
    Assignee: Microsoft Corporation
    Inventors: Donald Karlov, Gilles Khouzam
  • Patent number: 7639264
    Abstract: An interface unit, a device with the interface unit and a process for generating an image signal containing color image data is provided for activating a color monitor from an image signal containing monochrome image data. The interface unit has an input terminal (16), an output terminal (17) and a processor (18) coupled between the input terminal (16) and the output terminal (17). This processor (18) is set up to receive, via the input terminal (16), a first image signal issued by a monitor activating device (1) of an apparatus for activating a monochrome monitor. The signal contains monochrome image data, at least a part of which represents a number of graphic objects (9, 10), and which is set up to activate a monochrome monitor, such that the graphic objects (9, 10) are displayed on this monitor. One or more colors are assigned to each graphic object (9, 10) by the processor (18) on the basis of a predetermined dependence stored in this processor (18).
    Type: Grant
    Filed: March 7, 2007
    Date of Patent: December 29, 2009
    Assignee: Dräger Medical AG & Co. KG
    Inventor: Thomas Ressing
  • Patent number: 7630577
    Abstract: In an image processing apparatus and method, image data includes both color and alpha components. During processing, only the color component of the image data is stored in a memory. Display image data are then generated in response to the color component data retrieved from the memory and the alpha component data that were not stored in the memory. In this manner, by not storing the alpha component data in the memory, the memory access load by the image processing system is reduced.
    Type: Grant
    Filed: April 6, 2006
    Date of Patent: December 8, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Young-Pum Yi, Byeungwoo Jeon
  • Patent number: 7616216
    Abstract: There is disclosed a digital content creation system including: a representative color obtaining section that obtains, from a digital content input, a characteristic amount of at least one representative color for the digital content input, the digital content input including a plurality of digital content sets and coloration information indicative of coloration for the plurality of digital content sets included in the digital content input; a coloration process determination section that determines coloration processing in accordance with the characteristic amount obtained by the representative color obtaining section; and a coloration processing section that changes the coloration information for the digital content sets included in the digital content input, in accordance with the coloration processing determined by the coloration process determination section.
    Type: Grant
    Filed: December 19, 2006
    Date of Patent: November 10, 2009
    Assignee: Seiko Epson Corporation
    Inventors: Hitoshi Yamakado, Atsushi Nagahara
  • Patent number: 7612910
    Abstract: An information processing apparatus accurately and automatically determines whether a page to be printed out or rendered is a color page or a monochrome page. In order to efficiently output the page, color/monochrome determination is performed to the page by examining all the pixels forming a bitmap image based on the bitmap image and an attribute bitmap image.
    Type: Grant
    Filed: April 25, 2003
    Date of Patent: November 3, 2009
    Assignee: Canon Kabushiki Kaisha
    Inventor: Joji Oki
  • Patent number: 7602402
    Abstract: A method of displaying color objects for the screen control display is provided. First, a plurality of elements and son elements on a screen control display respectively to a first level list and a plurality of second level lists is provided. Each of said elements of said first level list includes said son elements each of which composed of a foreground object and a background object in said second level lists. Then, a color mapping table having a plurality of group indexes is provided. Each of said group indexes is mapped into a corresponding palette having a plurality of color indexes. Finally, each of said elements with said group index and said color index is mapped for displaying colors of said foreground object and said background object of said element composed of said group index and said color index respectively.
    Type: Grant
    Filed: November 16, 2006
    Date of Patent: October 13, 2009
    Assignee: Via Technologies, Inc.
    Inventor: Cheng-Wei Chuang
  • Patent number: 7595808
    Abstract: Aspects of the invention may include a method updating a color look-up table (CLUT) for a next line of graphics before a current line of graphics has been completely read out of a graphics FIFO and assigned color pixel values. The method may include the step of formatting or arranging the CLUT into a plurality of sub-CLUTs. Each one of the sub-CLUTs may include pixel color values for each one of a plurality of pixels which may include a line of the graphics image data. Pixel color values may be read from within a first selected sub-CLUT, the first selected sub-CLUT comprising pixel color values for a first line of the graphics image data. The read pixel color value may be applied to the current first line of the graphics image data. While the read pixel color value is being applied to the current first line, pixel color values for a second selected sub-CLUT may be updated. The second selected sub-CLUT may include color pixel values for a second line of the graphics image data.
    Type: Grant
    Filed: September 30, 2004
    Date of Patent: September 29, 2009
    Assignee: Broadcom Corporation
    Inventors: Guang-Ting Shih, Jay Li, Steven Tseng, Chengfuh Jeffrey Tang
  • Patent number: 7586495
    Abstract: According to some embodiments, systems, methods, apparatus, computer program code and means are provided to set a first depth value associated with a plurality of pixels of a video image comprising a plurality of planes, create a first clear rectangle with respect to the first depth value, color render the pixels that are not associated with the first clear rectangle, and render the plurality of planes.
    Type: Grant
    Filed: December 29, 2006
    Date of Patent: September 8, 2009
    Assignee: Intel Corporation
    Inventors: Prasoonkumar Surti, Hong Jiang, Steven J. Spangler
  • Publication number: 20090213130
    Abstract: In a display device provided with a frame memory developing an auxiliary line image as a display image and a means of reading out and displaying the image data developed in the aforementioned frame memory, the aforementioned auxiliary line image is constituted by background pixels and dashed auxiliary lines constituted by pixels which have luminance or color that is different from that of the background color and pixels with have nearly identical luminance or color to that of the background color; and by carrying out the display of the dashes so as to move, at fixed time intervals or arbitrary time intervals, the dash display areas of the aforementioned auxiliary lines on the trajectory of the figure described by the aforementioned auxiliary lines, the system is devised to display the auxiliary lines while controlling that an identical pixel of the display device is not displayed continually.
    Type: Application
    Filed: February 4, 2009
    Publication date: August 27, 2009
    Inventors: Shinji ONODERA, Koichi Atsuta, Yusuke Mukai, Kenichi Iwahara
  • Patent number: 7564463
    Abstract: Apparatus and method for displaying input data in various colors on a display in a portable terminal is provided. If a user selects a data color change, data is displayed in a random color. If the user selects a user selection-based data color change, the data is displayed in a user-selected color.
    Type: Grant
    Filed: December 15, 2004
    Date of Patent: July 21, 2009
    Assignee: Samsung Electronics Co., Ltd
    Inventor: Seok-Hoon Lee
  • Patent number: 7564466
    Abstract: A system and method for managing memory for color transforms. Color input data representing a colorized electronic document is first received by a color management module and analyzed. The color transformations required to complete processing of the color document is then determined. A plurality of lookup tables are then generated in system memory in accordance with the determined color transformations specified by the analysis of the color input data. A counter, corresponding to a lookup table for each request for a related color transform is then selectively incremented and decremented, based upon the output and determinations of the color management module. The color management module then selectively clears a lookup tables in the associated system memory when a corresponding counter value has been decremented to a selected level.
    Type: Grant
    Filed: January 10, 2006
    Date of Patent: July 21, 2009
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki Kaisha
    Inventor: Tony Quach
  • Patent number: 7554551
    Abstract: A display color buffer in a unified memory architecture is decoupled from main memory by partitioning the address space for the color buffer into a frame-preparation memory accessed by a graphics subsystem at a frame rate to prepare color data and a refresh memory that is accessed by a display device at a refresh rate to display the color data. The color data is periodically transferred between the frame-preparation memory and the refresh memory, or when a frame of color data is ready for display.
    Type: Grant
    Filed: June 7, 2000
    Date of Patent: June 30, 2009
    Assignee: Apple Inc.
    Inventor: Sara Ruhina Biyabani
  • Publication number: 20090073178
    Abstract: Display driver (10) with a frame memory (13) for temporarily storing image data representing a color image, and a data bus (11.1) for feeding image data to the display driver (10). The display driver (10) comprises means for performing a decision process (8, 9), said decision process being based on an analysis of the color characteristics of a pixel cluster of said image data, the means for performing a decision process (8, 9) allowing the display driver (10) to decide whether a first compression format or a second compression format is to be applied for compression of said pixel cluster. It further comprises first compression means (7) performing a compression of said pixel cluster into said first compression format, and second compression means (6) performing a compression of said pixel cluster into said second format.
    Type: Application
    Filed: March 14, 2007
    Publication date: March 19, 2009
    Applicant: NXP B.V.
    Inventor: Matheus J. G. Lammers
  • Patent number: 7505045
    Abstract: A method and apparatus for decoding, on a pixel-by-pixel basis, audio/video data using a table of encoded pixel parameter values, wherein each pixel is represented by an entry including a dominant pixel color component and by scaling a set of segment reference pixels comprised of segment reference pixel values according to each entry in the table of encoded pixel parameter values to produce decoded pixels comprised of decoded pixel parameter values.
    Type: Grant
    Filed: February 2, 2004
    Date of Patent: March 17, 2009
    Assignee: Adams Platform Pty Ltd.
    Inventor: Adam Leslie Clark
  • Patent number: 7489320
    Abstract: A system and method for conserving memory bandwidth while supporting multiple sprites includes a memory device that stores main display data and the multiple sprites for presentation upon a display device. A display controller populates a fetch table with pixel source identifiers that indicate pixel sources from either the main display data or one of the multiple sprites. The pixel source identifiers correspond to display pixels of the display device. The display controller then utilizes the pixel source identifiers to directly locate the appropriate display pixels from the various pixel sources for providing to the display device.
    Type: Grant
    Filed: May 13, 2005
    Date of Patent: February 10, 2009
    Assignee: Seiko Epson Corporation
    Inventors: Barinder Singh Rai, Jimmy Kwok Lap Lai
  • Patent number: 7483039
    Abstract: A programmable system for dithering video data. The system is operable in at least two user-selectable modes which can include a small kernel mode and a large kernel mode. In some embodiments, the system is operable in at least one mode in which it applies two or more kernels (each from a different kernel sequence) to each block of video words. Each kernel sequence repeats after a programmable number of the blocks (e.g., a programmable number of frames containing the blocks) have been dithered. The period of repetition is preferably programmable independently for each kernel sequence. The system preferably includes a frame counter for each kernel sequence. Each counter generates an interrupt when the number of frames of data dithered by kernels of the sequence has reached a predetermined value. In response to the interrupt, software can change the kernel sequence being applied. Typically, the system performs both truncation and dithering on words of video data.
    Type: Grant
    Filed: October 26, 2005
    Date of Patent: January 27, 2009
    Assignee: NVIDIA Corporation
    Inventors: Jonah M. Alben, Stephen Lew
  • Patent number: 7477260
    Abstract: A system of processing data in a graphics processing unit having a core configured to process data in hexadecimal form and other graphics modules configured to process data in quads includes a transpose buffer with a crossbar to reorganize incoming data, several memory banks to store the reorganized data over a period of several clock cycles, and a second crossbar for reorganizing the stored data after it is read from the bank of memories in one clock cycle. The method for converting between data in hexadecimal form and data in quads includes providing data in hexadecimal form, reorganizing the data provided in hexadecimal form, storing the reorganized data in several memories, and reading several of the memory locations, which contain all of the elements of the quad, in one clock cycle.
    Type: Grant
    Filed: February 1, 2006
    Date of Patent: January 13, 2009
    Assignee: NVIDIA Corporation
    Inventor: Bryon S. Nordquist
  • Patent number: 7474315
    Abstract: A method, apparatus, and system for generating a deep pixel display on a display device are provided. A first set of data relating to a first pixel is provided. The first set of data is stored. A second set of data relating to the first pixel is provided. At least one portion of the first set of data is combined with at least a portion of the second set of data. A deep pixel is defined based upon combining the portion of the first and second sets of data. The present invention also includes a system that includes a display controller that is adapted to define a deep pixel based upon combining the portion of the first and second sets of data.
    Type: Grant
    Filed: April 29, 2005
    Date of Patent: January 6, 2009
    Assignee: Apple Inc.
    Inventor: Ian Hendry
  • Patent number: 7468733
    Abstract: A method and system for reducing or eliminating artifacts that may occur during color reduction of images. A bias is added to a data structure that is arranged to store counts of pixel colors of an image. Counts of pixel colors of the image are added to the data structure. Via the data structure, colors from the image are grouped into buckets until the number of buckets is less than or equal to a number of colors in a palette. Then, colors of pixels in the image are mapped to colors in the palette.
    Type: Grant
    Filed: October 6, 2004
    Date of Patent: December 23, 2008
    Assignee: Microsoft Corporation
    Inventors: Gilles A. Khouzam, Gilman K. Wong, Cyra S. Richardson, Donald B. Curtis
  • 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
  • Patent number: 7450134
    Abstract: Methods and apparatus for generating images, compressing image data, decompressing image data, and processing the decompressed image data so that it can be used by a rendering circuit of a device, e.g., a set top box, are described. Images are generated in the native format used by the rendering circuit of the device which will ultimately control the display of the image avoiding the need to perform processing associated with converting color component information from one format to another. Uncompressed image data is arranged in a file with color component values being grouped separately from alpha values to facilitate compression by a standard file compression technique. The file is compressed using a conventional file compression operation. The compressed image file is decompressed when needed and the alpha data and color component data is reorganized so that the color component values and alpha value(s) corresponding to individual pixels are grouped together.
    Type: Grant
    Filed: November 18, 2004
    Date of Patent: November 11, 2008
    Assignee: Time Warner Cable Inc.
    Inventors: Stephen L. Maynard, John Callahan, Ben Payne
  • Patent number: 7432937
    Abstract: An apparatus and method to render concave polygons. In some embodiments, the method includes setting an alpha buffer of a hardware rasterizer to zero, generating an alpha mask by rendering the concave polygon as a plurality of convex polygons of connected vertices, wherein an alpha value for each of the plurality of the plurality of polygons is toggled between a zero value and a second non-zero value on successive renderings of each portion of the plurality of the convex polygons. The alpha values may be stored in the alpha buffer, and the plurality of convex polygons may be re-rendered based on the generated alpha mask, where the stored alpha value is the second non-zero value.
    Type: Grant
    Filed: June 30, 2005
    Date of Patent: October 7, 2008
    Assignee: Intel Corporation
    Inventors: Bimal Poddar, Avinash Seetharamaiah
  • Patent number: 7400329
    Abstract: A system for 3-dimensional gaming on a mobile handset is provided. The system includes a converter component operable to convert a pre-rendered 3-dimensional graphic image having 24-bit color resolution to a 3-dimensional graphic image having 16-bit color resolution. The component further operable such that the 3-dimensional graphic image having 16-bit color resolution is run length encoded. The system includes a mobile handset game operable to use the 3-dimensional run length encoded graphic image having 16-bit color resolution for display on a handset as part of the mobile handset game.
    Type: Grant
    Filed: March 30, 2006
    Date of Patent: July 15, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: David Cole Edwards
  • Patent number: 7362334
    Abstract: A database methodology that concerns the mapping of any arbitrary object into a plurality of regions, enabling the assignment of multiple region-specific attributes thereto and facilitating the concurrent, graphical presentation of any assigned attributes. Attribute storage, manipulation, and presentation are driven by the individual regions and characteristics of the object.
    Type: Grant
    Filed: September 9, 2003
    Date of Patent: April 22, 2008
    Assignee: Advanced Neuromodulation Systems, Inc.
    Inventor: Richard J. Daignault, Jr.
  • Patent number: 7348993
    Abstract: A method and system for allowing a computer system platform the ability to create image content is provided. Captured image data of an original image is received and information corresponding to colorimetric points is measured. Automatic determinations are made as to whether information of additional colorimetric points need to be measured to reproduce an accurate color representation of the original image. In response, the computer system platform can identify portions of a displayed image where information of colorimetric points needs to be measured. In addition, the system can automatically measure information of the additional colorimetric points needed. An image and color gamut representation are displayed allowing a user to manipulate measured information of colorimetric points and change the view of the color gamut representation, thereby allowing a user to create an accurate color representation of the original image.
    Type: Grant
    Filed: November 10, 2003
    Date of Patent: March 25, 2008
    Assignee: Microsoft Corporation
    Inventors: Michael Stokes, William M. Crow
  • Patent number: 7348996
    Abstract: A method, system, and article of manufacture for reducing aliasing. A method in accordance with one embodiment sampling a pixel of an image at a plurality of pixel sample points to produce a corresponding plurality of pixel sample values, wherein at least one of the plurality of pixel sample points is located at a predetermined displacement from a position along an edge of the pixel. The method further includes combining the plurality of pixel sample values to produce a displayed pixel value. This Abstract is provided to comply with rules requiring an Abstract that allows a searcher or other reader to quickly ascertain subject matter of the technical disclosure. This Abstract is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims. 37 CFR 1.72(b).
    Type: Grant
    Filed: March 23, 2005
    Date of Patent: March 25, 2008
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Tomas Akenine-Möller, Jacob Ström