Patents Examined by A Blackman
  • Patent number: 6847376
    Abstract: The present invention provides a technique for modeling the tone reproduction curve of a flat panel screen such as an LCD. The technique employs a second order function to predict the luminance output as a function of the input voltage based upon two known input values. This abstract is provided for the sole purpose of complying with the rules requiring an abstract to allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure contained herein. This abstract is submitted with the express understanding that it will not be used to interpret or to limit the scope or the meaning of the claims.
    Type: Grant
    Filed: March 15, 2001
    Date of Patent: January 25, 2005
    Assignee: LightSurf Technologies, Inc.
    Inventors: Peter G. Engeldrum, Cornelis P. van Prooijen, Peter Bernard, James E. Deutch, Joel D. Mattox, William J. Hilliard, Thomas L. Strother
  • Patent number: 6812933
    Abstract: A method of accurately rendering algebraically defined shapes that can be used to render alignment targets, or for other purposes, is disclosed. The method can render shapes as a bitmap image for machine vision alignment training, for computer display for human observation, and for computer printout for documentation. The method can aid in rendering targets on the objects to be located by providing input to a computer-aided design (CAD) system, or by directly controlling devices such as laser engravers. The rendering method is fast, extremely accurate, and can handle substantially arbitrary shapes. Targets are defined by a real-valued function of position in the real plane that gives the distance from that position to the nearest point on a target boundary. The function gives distance as a positive value for points inside the figure, and as a negative value for points outside the figure. An edge model is used to map distance to real-valued image intensity.
    Type: Grant
    Filed: October 30, 2000
    Date of Patent: November 2, 2004
    Assignee: Cognex Technology and Investment
    Inventor: William Silver
  • Patent number: 6791571
    Abstract: The present invention is embodied in an absolute and relative coordinate based format description system and method for displaying information, such as text, graphics, audio/visual multimedia, hyperlinks, etc. within a computer environment. Multimedia information including text, graphics, audio media, visual media and hyperlinks, is effectively presented and displayed within the computer environment. The multimedia information is contained within geometrical objects, which can be located anywhere within a working area with absolute or relative positioning and properties. Each object can be independent of other objects (absolute values) or dependent on other objects (relative values).
    Type: Grant
    Filed: February 27, 1999
    Date of Patent: September 14, 2004
    Assignee: Microsoft Corporation
    Inventor: Steven Dale Lamb
  • Patent number: 6788312
    Abstract: A system, method and computer program product are provided for improving image quality in a graphics pipeline. Initially, a difference is detected between a first pixel of a first frame to be outputted and a corresponding second pixel of a second frame outputted before the first frame. Such difference may be representative of motion which is capable of reducing image quality. A pixel output is then modified if such a difference is detected. This is accomplished utilizing texturing hardware in the graphics pipeline. Thereafter, the pixel output is outputted via a progressive or interlaced display system.
    Type: Grant
    Filed: August 6, 2001
    Date of Patent: September 7, 2004
    Assignee: Nvidia Corporation
    Inventors: Hassane S. Azar, Douglas Sim Dietrich, Jr., Duncan Andrew Riach, Henry P. Moreton, Douglas H. Rogers
  • Patent number: 6753861
    Abstract: In one embodiment, selecting a screen region on a screen of a monitor of a computer graphics display system to activate in rendering a straight line segment. Steps of aligning a rectangular grid to screen region boundaries, wherein the screen includes a screen space divided into at least one screen region, locating a first and second endpoints of the straight line segment on the screen space, defining a rectangular bounding box in the screen space having vertices at the first and second endpoints, identifying each screen region that at least partially overlaps the bounding box, and selecting each identified screen region through which the straight line segment passes to activate for rendering the straight line segment on the screen are disclosed.
    Type: Grant
    Filed: October 18, 2001
    Date of Patent: June 22, 2004
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Thomas L Thrasher, Ronald D. Larson
  • Patent number: 6750864
    Abstract: A GUI is disclosed including a set of visualization routines designed to improve display, visualization and manipulation of multi-dimensional data. Many of the routines combine 2D and 3D renderings with domain selecting criteria and stacking criteria with line segments connecting variable values between records in a given dataset or between corresponding variable values in records of related datasets. The GUI also employs active, persistent and slider variables to probe variable relationships, group relationships and dataset relationships.
    Type: Grant
    Filed: November 15, 2000
    Date of Patent: June 15, 2004
    Assignee: Polyvista, Inc.
    Inventor: Mohammed S. Anwar
  • Patent number: 6664976
    Abstract: Digital watermarking technology is used in an image management system. Images are identified by digital watermarks. The images are stored so as to be indexed according to their unique identifiers. In the preferred embodiment, related images are grouped into a set of images through a common watermark identifier. A particular image within the set of images is identified through a hash of the particular image.
    Type: Grant
    Filed: March 13, 2002
    Date of Patent: December 16, 2003
    Assignee: Digimarc Corporation
    Inventors: Neil E. Lofgren, Geoffrey B. Rhoads
  • Patent number: 6597365
    Abstract: The invention concerns an indicating device for the optical reproduction of graphics, with a data-processing installation for the graphic processing of the information to be represented, and an indicating unit for the visualization of the processed information, wherein[, among others,] the data-processing installation uses antialiasing procedures in the graphical processing. In generating an image, the data-processing installation uses, for the graphical processing of at least two image areas or image objects, different antialiasing procedures, or else represents one of these image areas or one of these image objects without an antialiasing procedure.
    Type: Grant
    Filed: September 11, 1998
    Date of Patent: July 22, 2003
    Assignee: Valeo Borg Instruments GmbH & Co. KG
    Inventors: Thomas Baecke, Peter Hartmann
  • Patent number: 6580436
    Abstract: A terminal device for mobile communication and a screen display method are provided for appropriately correcting the amount of scrolling so that a display element should not be displayed across the boundary of a display screen when the screen with a plurality of display elements of different types mixed therein is scrolled. A scroll instruction unit outputs a scroll instruction such as one-line vertical scrolling based on the operation inputted by a user through an input unit. A basic amount determination unit determines a basic moving amount according to the scroll instruction. A display element searching unit calculates a provisional display start position based on the basic moving amount and a display start position held in a display element information holding unit, and searches for a display element that is supposed to be displayed across the boundary of the display screen.
    Type: Grant
    Filed: May 8, 2000
    Date of Patent: June 17, 2003
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Toshihiro Hishida, Masakazu Kawano, Hidehiko Shin, Junji Ishigaki
  • Patent number: 6529206
    Abstract: A projected image of a three-dimensional object is displayed in a frame which is a constituent of a moving picture. Shape information concerning the shape of a surface of the three-dimensional object and a characteristic point on the projected image of the surface are designated. The projected image of the surface of the three-dimensional object is transformed into a corresponding two-dimensionally developed expanded image. Rendering is effected on an overall expanded image storage area that stores the entire part of the expanded image of the surface. A predetermined cut-out region is cut out of the overall expanded image storage area, and a retouching work such as an editorial work is effected on the expanded image, based on the content of the cut-out region. The retouched expanded image is then re-transformed back to the projected image on the frame. Three-dimensional retouching such as a three-dimensional editorial work can therefore easily be effected on a two-dimensional moving picture.
    Type: Grant
    Filed: July 9, 1999
    Date of Patent: March 4, 2003
    Assignee: Sony Corporation
    Inventors: Mitsuharu Ohki, Takashi Totsuka, Rui Yamada
  • Patent number: 6515665
    Abstract: Arbitrary sets of samples may be suppressed from display and analysis. The resulting record may then be saved in its abbreviated form or discarded. Such a record may also be retrieved and arbitrarily partially suppressed a second or third time, making a series of smaller and less complete acquisition histories. Each of these records may be saved with or without suppressed samples and may be later redisplayed reliably showing those samples originally saved.
    Type: Grant
    Filed: June 21, 1999
    Date of Patent: February 4, 2003
    Assignee: Tektronix, Inc.
    Inventor: Forest L. Ross