Patents Examined by Richard Hjerpe
  • Patent number: 8164576
    Abstract: Detect four sets of first touch coordinates (A, B, C, D) on a touch panel. Divide an area delimited by the detected four sets into two areas of triangles (ABD, BCD). For each area of triangle, obtain a first correction factor. Detect a set of second touch coordinates (P, Q) selected within a respective one of the areas of triangles. Convert the detected set of second touch coordinates into a set of first corrected coordinates. Detect a difference between the set of first corrected coordinates and a set of true display coordinates. Where the detected difference is greater than a predetermined threshold value, further divide the area of triangle (BCD) into three areas of triangles (QBD, QBC, QCD). Obtain a second correction factor using the set of second touch coordinates and the sets of first touch coordinates corresponding to the vertices.
    Type: Grant
    Filed: August 12, 2008
    Date of Patent: April 24, 2012
    Assignee: International Business Machines Corporation
    Inventors: Tomomi Inoue, Yoshifumi Sakamoto, Koki Shimohashi, Manabu Toyota
  • Patent number: 8164580
    Abstract: An input apparatus and method using optical masking which enable a user to intuitively manipulate a menu by mapping light sources of an optical masking sensing unit and icons displayed on a display panel to corresponding positions. The input apparatus includes a display panel displaying a plurality of icons and functions of the icons, and an optical masking sensing unit including a plurality of optical devices as light sources, turning on optical devices located at positions corresponding to positions of the displayed icons.
    Type: Grant
    Filed: May 7, 2007
    Date of Patent: April 24, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jung-hyun Shim, Dong-kyung Nam, Chang-su Kim
  • Patent number: 8164561
    Abstract: A driving method for driving a display panel is provided. The display panel includes a plurality of scan lines, a plurality of data lines, and a plurality of pixel units electrically connected to the scan lines and the data lines. The driving method comprises enabling the pixel units controlled by the scan lines through different scanning sequences and inputs image data to the pixel units via the data lines in several consecutive frame times, wherein capacitance coupling effects between the pixel units are varied depending on the scanning sequences. Accordingly, the line mura caused by the capacitance coupling effect is restrained.
    Type: Grant
    Filed: July 10, 2007
    Date of Patent: April 24, 2012
    Assignee: Au Optronics Corporation
    Inventors: Tsang-Hong Wang, Fang-Lin Chang, Yun-Chung Lin
  • Patent number: 8164582
    Abstract: A method for using a touch display system comprises defining local distortion zones within regions of a touchscreen. Each of the local distortion zones has an associated calibration touch point and a target. Coordinates of a user touch point are distorted within a first local distortion zone based on a location of the user touch point within the first local distortion zone.
    Type: Grant
    Filed: December 11, 2007
    Date of Patent: April 24, 2012
    Assignee: Tyco Electronics Corporation
    Inventors: Kenneth J. North, Jeffery L. Bahr, Joel C. Kent
  • Patent number: 8159428
    Abstract: The invention relates to methods and apparatus for forming images on a display utilizing a control matrix to control the movement of MEMs-based light modulators.
    Type: Grant
    Filed: January 6, 2006
    Date of Patent: April 17, 2012
    Assignee: Pixtronix, Inc.
    Inventors: Nesbitt W. Hagood, Abraham McAllister, Stephen R. Lewis, Roger W. Barton
  • Patent number: 8159484
    Abstract: A liquid crystal device includes a lateral electric field mode liquid crystal element that controls alignment of liquid crystal molecules by applying an electric field in a direction of a substrate plane to a liquid crystal layer. A voltage inverter circuit is provided in each pixel circuit, and inverts a voltage applied to the liquid crystal element by switching the supply of each of the first and second voltages, supplied from a memory circuit, to between a first pixel electrode and a second pixel electrode of the liquid crystal element. A holding capacitor holds a voltage applied to the liquid crystal element. The voltage inverter circuit includes switching elements. One end of the holding capacitor is connected to at least one of a common connecting point of first and second switching elements and a connecting point of third and fourth switching elements.
    Type: Grant
    Filed: February 28, 2008
    Date of Patent: April 17, 2012
    Assignee: Seiko Epson Corporation
    Inventor: Kenya Watanabe
  • Patent number: 8159442
    Abstract: In one embodiment of the present application, a liquid crystal display device is disclosed, in which increased power consumption due to an excessive DAC capability and reduced display quality due to a deficient DAC capability do not occur as a result of dynamically adjusting the DAC capability such that variation in the characteristics of the liquid crystal panel is compensated.
    Type: Grant
    Filed: September 8, 2006
    Date of Patent: April 17, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Yusuke Nii
  • Patent number: 8159427
    Abstract: An image display is provided with a display area including pixels, each including illuminating means. A control circuit turns the illuminating means of the pixels on and off. A capacitance is provided having a first node connected to an input terminal of the control circuit. A display signal voltage generation circuit generates display signal voltages for the pixels, while a pixel drive voltage generation circuit generates pixel drive voltages for the pixels. In addition, a connector is provided for connecting either one of the display signal voltages or the pixel drive voltages to a second node of the capacitance.
    Type: Grant
    Filed: August 1, 2011
    Date of Patent: April 17, 2012
    Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Hajime Akimoto, Shigeyuki Nishitani, Shinichi Komura, Toshihiro Sato, Hiroshi Kageyama, Yoshiteru Shimizu
  • Patent number: 8159485
    Abstract: A method of using a customer pole display, point-of-sale pole display, point-of sale display, or pole display includes connecting a Universal Serial Bus, inputting a power signal from the Universal Serial Bus, translating the power signal to a display power signal, and connecting the display power signal to the display. A Universal Serial Bus-compatible interface adapted to provide power to a point-of-sale display includes a connector adapted to be coupled to a Universal Serial Bus and a converter operatively coupled to the connector and adapted to translate a power signal input from the Universal Serial Bus to a display power signal. A point-of-sale display assembly includes a display, a connector adapted to be coupled to a Universal Serial Bus, and a converter operatively coupled to the connector and adapted to translate a power signal input from the Universal Serial Bus to a display power signal.
    Type: Grant
    Filed: July 29, 2005
    Date of Patent: April 17, 2012
    Assignee: Logic Controls, Inc.
    Inventor: Jackson Lum
  • Patent number: 8159480
    Abstract: An electro-optical device includes a plurality of scanning lines and a plurality of data lines, pixels arranged so as to correspond to intersections of the plurality of scanning lines and the plurality of data lines, and an electro-optical material in which a response speed at a time of halftone display is lower than those at a time of low-gray-scale-level display and at a time of high-gray-scale-level display. Each of the pixels includes at least two adjacent subpixels as a group. Each of the subpixels includes a pixel electrode, a common electrode arranged so as to face the pixel electrode, and a switching device which electrically connects a corresponding one of the data lines to the pixel electrode in accordance with a selection voltage supplied from a corresponding one of the scanning lines. The switching device is connected to the corresponding one of the scanning lines.
    Type: Grant
    Filed: August 9, 2007
    Date of Patent: April 17, 2012
    Assignee: Sony Corporation
    Inventor: Kenichi Tajiri
  • Patent number: 8154540
    Abstract: A drive circuit of a display panel having wirings and display devices connected to the wirings includes a first switch that transits potential of the wirings toward a first potential, a feedback amplifier that maintains the potentials of the wirings at the first potential, and a second switch that selects whether or not to supply an output from the feedback amplifier to the wirings. In addition, a self switch controls the second switch by comparing the potential of the wirings with a reference potential that is higher by a predetermined value than the first potential. The first switch and the second switch are connected to the wirings in parallel, and a drive performance of the first switch is lower than that of the second switch.
    Type: Grant
    Filed: January 30, 2009
    Date of Patent: April 10, 2012
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kenji Shino, Yasukazu Noine
  • Patent number: 8154528
    Abstract: A matrix sensing apparatus with architecture having reduced quantity of required sensing lines is disclosed. The matrix sensing apparatus includes a plurality of driving lines, a plurality of sensing lines and a matrix sensing region. The matrix sensing region includes a plurality of sensing areas. Each sensing area includes a first transistor, a second transistor, and a sensing unit for generating a sensing signal. The first transistor is coupled to the sensing unit and a corresponding sensing line. The second transistor is coupled to the first transistor, a first corresponding driving line and a second corresponding driving line. The first transistor together with the second transistor functions to control the signal connection between the sensing unit and the corresponding sensing line based on the driving signals of the first and second corresponding driving lines.
    Type: Grant
    Filed: February 3, 2009
    Date of Patent: April 10, 2012
    Assignee: AU Optronics Corp.
    Inventors: Wu-Min Chen, Chih-Lin Liao, Hung-Min Shih
  • Patent number: 8154527
    Abstract: The user interface system of the preferred embodiment includes: a layer defining a surface, a substrate supporting the layer and at least partially defining a cavity, a displacement device coupled to the cavity and adapted to expand the cavity thereby deforming a particular region of the surface, a touch sensor coupled to the substrate and adapted to sense a user touch proximate the particular region of the surface, and a display coupled to the substrate and adapted to output images to the user. The user interface system of the preferred embodiments has been specifically designed to be incorporated into an electronic device, such as the display of a mobile phone, but may be incorporated in any suitable device that interfaces with a user in both a visual and tactile manner.
    Type: Grant
    Filed: January 5, 2009
    Date of Patent: April 10, 2012
    Assignee: Tactus Technology
    Inventors: Craig Michael Ciesla, Micah B. Yairi
  • Patent number: 8154514
    Abstract: A remote control device is provided. The device includes an attitude sensing unit that senses the attitude of a device; an axis determining unit that determines one axis in space according to the attitude; a direction input unit that receives a selection command input of one of two directions that are parallel to the axis and are in opposite directions to each other; and a transmission unit that transmits a control signal to move a predetermined graphics object in a direction corresponding to the selection command.
    Type: Grant
    Filed: February 1, 2007
    Date of Patent: April 10, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jang-seok Seo, Il-woo Park
  • Patent number: 8154472
    Abstract: Enlarged display of part of display data on display by a first display section is performed to a second display section, based on a relative position of the second display section with respect to the first display section.
    Type: Grant
    Filed: May 25, 2007
    Date of Patent: April 10, 2012
    Assignee: Fujifilm Corporation
    Inventors: Hiroshi Yamaguchi, Akira Yoda
  • Patent number: 8154493
    Abstract: It is an object to provide a display module which can display a correct gray scale by a field sequential driving method and an electronic device including the display module. One frame period is divided into a plurality of lighting periods, and in each of the plurality of lighting periods, signals are supplied to a pixel a plurality of times, whereby the transmissivity of a liquid crystal element is changed over time. Accordingly, even with the use of a liquid crystal element with low response speed as a display element, a correct gray scale can be expressed. In addition, the transmissivity of the liquid crystal element is set at 0% or a backlight is controlled not to emit light in switching of lighting of a backlight or switching of lighting periods, whereby a more correct gray scale can be expressed.
    Type: Grant
    Filed: May 22, 2007
    Date of Patent: April 10, 2012
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Hajime Kimura, Atsushi Umezaki, Shunpei Yamazaki
  • Patent number: 8149192
    Abstract: There is provided an optical writing image forming device including: a positioning section positioning an optically written display medium including a pair of electrodes with at least one of which formed by a group of plural sub-electrodes, a display layer, and a photoconductor layer; a display layer initialization section applying an initialization voltage between the pair of electrodes and irradiating initialization light over the entire region of the photoconductor layer; an optical writing section; a head position identification section; and a writing information erasing section, based on information identified by the head position identification section, erasing in a time-series writing information in the display layer corresponding to the group of the plural sub-electrodes by selecting the sub-electrodes in sequence so that an image writing head does not obstruct light emitted from the initialization light source while the image writing head light source is being returned to a standby position.
    Type: Grant
    Filed: September 30, 2008
    Date of Patent: April 3, 2012
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Tsutomu Ishii, Yasunori Saito, Shigehiko Sasaki, Masahiro Sato, Akira Ichiboshi, Kyotaro Tomoda
  • Patent number: 8148652
    Abstract: A position detecting device includes: X-axis electrodes and Y-axis electrodes; a driving section for supplying an AC signal to the X-axis electrodes; a synchronous clock generating section for generating synchronous clock signals at the timing when the AC signal passes through zero-cross points; a first switch for selectively supplying the AC signal outputted from the driving section to one of the X-axis electrodes at the timing of the synchronous clock signal; a second switch for selecting one of the Y-axis electrodes at the timing of the synchronous clock signal; a synchronous detector for synchronous-detecting a signal outputted by the Y-axis electrodes through the second switch; and a position calculating section for calculating a position indicated by an indicator based on the signal outputted from the synchronous detector, wherein the position corresponds to one or more intersections of the X-axis electrodes and Y-axis electrodes.
    Type: Grant
    Filed: January 29, 2009
    Date of Patent: April 3, 2012
    Assignee: Wacom Co., Ltd.
    Inventor: Masaki Matsubara
  • Patent number: 8149218
    Abstract: A controlling device using a source of energy, such as light energy, to provide the controlling device with a user interface having multiple, different visual appearances.
    Type: Grant
    Filed: December 21, 2004
    Date of Patent: April 3, 2012
    Assignee: Universal Electronics, Inc.
    Inventors: Alejandro Garfio, Cesar Alvarado
  • Patent number: 8149252
    Abstract: A display uses x illuminator systems to produce x primary colors and y overlap colors, which are combinations of primary colors, to illuminate a spatial light modulator in a display system. A first set of n duty cycles for the x primary colors over a frame is provided, wherein the display system can select any one of the duty cycles to produce a desired white point. A second set of n duty cycles of x+y colors over a frame corresponding to the first set of duty cycles is determined, where the second set of duty cycles are generated responsive to a specified desired allocation of the frame to the y overlap colors, such that each of the overlap colors can be displayed from a dark shade to a bright shade while maintaining a constant color point.
    Type: Grant
    Filed: May 22, 2008
    Date of Patent: April 3, 2012
    Assignee: Texas Instruments Incorporated
    Inventor: Todd Alan Clatanoff