Patents Examined by Ali Zamani
  • Patent number: 6952194
    Abstract: An object of the present invention is to provide a small-sized active matrix type liquid crystal display device that may achieve large-sized display, high precision, high resolution and multi-gray scales. According to the present invention, gray scale display is performed by combining time ratio gray scale and voltage gray scale in a liquid crystal display device which performs display in OCB mode. In doing so, one frame is divided into subframes corresponding to the number of bit for the time ratio gray scale. Initialize voltage is applied onto the liquid crystal upon display of a subframe.
    Type: Grant
    Filed: March 28, 2000
    Date of Patent: October 4, 2005
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Jun Koyama
  • Patent number: 6831618
    Abstract: A method for driving a display panel which enables changing of the refresh rate, without degrading display quality, of a display panel employing the matrix display scheme for carrying out gray-scale drive by using the sub-field method. By the method, the number of sub-fields to be executed within a unit display period is changed in response to the vertical synchronization frequency of an input video signal.
    Type: Grant
    Filed: March 3, 2000
    Date of Patent: December 14, 2004
    Assignee: Pioneer Corporation
    Inventors: Masahiro Suzuki, Nobuhiko Saegusa
  • Patent number: 6803906
    Abstract: A passive touch system includes a passive touch surface and at least two cameras associated with the touch surface. The at least two cameras acquire images of the touch surface from different locations and have overlapping fields of view. A processor receives and processes images acquired by the at least two cameras to detect the existence of a pointer therein and to determine the location of the pointer relative to the touch surface. Actual pointer contact with the touch surface and pointer hover above the touch surface can be determined.
    Type: Grant
    Filed: July 5, 2000
    Date of Patent: October 12, 2004
    Assignee: Smart Technologies, Inc.
    Inventors: Gerald Morrison, Manvinder Singh
  • Patent number: 6781569
    Abstract: A hand controller arm assembly provides for the sensing of the position of a handle at the end of an arm in the X and Y direction through supporting linkages, and in the Z direction through a hinge which permits the arm to rotate upwardly. The joints of this controller may be actuated to provide haptic feed-back.
    Type: Grant
    Filed: June 11, 1999
    Date of Patent: August 24, 2004
    Assignee: Immersion Corporation
    Inventors: Pedro Gregorio, Vincent Hayward, Christophe Ramstein
  • Patent number: 6768481
    Abstract: An ON/OFF control signal 105 directive of turning ON in a transmissive display mode or turning OFF in a reflective display mode is output by an ON/OFF state controlling means 111 to a light source 115. The ON/OFF control signal 105 is also output to a data signal converting means 104, and the data signal converting means 104 converts a data signal 102 into a data signal 103 in synchronization with the switching of ON and OFF of the light source 115 so as to prevent positive-negative inversion of the display on a liquid crystal panel 114. A data signal potential supplying means 112 supplies a potential of a data signal based on the data signal 103 to a data signal line 113 so as to drive the liquid crystal panel 114.
    Type: Grant
    Filed: July 22, 2002
    Date of Patent: July 27, 2004
    Assignee: Seiko Epson Corporation
    Inventors: Yutaka Ozawa, Akira Inoue, Katsunori Yamazaki, Tsuyoshi Maeda, Chiyoaki Iijima
  • Patent number: 6765545
    Abstract: The present invention relates to a stereoscopic image display system using polarization characteristics of a liquid crystal display panel, which realizes a stereoscopic image by disposing in an entrance pupil or in an exit pupil of a projection lens a polarization plate arranged for two polarization plates of an circular polarization opposite to each other in polarization directions or two linear polarization plates having a polarization direction of a 90 degree difference to each other to be fitted in the left and right sides on a center line, projecting left and right images of a display device panel on a screen through a projection lens in the left and right polarization directions of the polarization plate, splitting an image of the polarization plate, that is, the left and right images through viewing zones, and forming the viewing zones which can view images corresponding to the left and right eyes having the same polarization as the polarization plate.
    Type: Grant
    Filed: July 2, 2001
    Date of Patent: July 20, 2004
    Assignees: Samsung Electronics Co., Ltd., Korea Institute of Science and Technology (KIST)
    Inventors: Jung-Young Son, Sung-Sik Kim, Ji-Eun Bahn
  • Patent number: 6760003
    Abstract: A small-sized electronic apparatus is provided which, in the case of use as a watch, can be manufactured at a low cost but with the same thickness, size, weight, etc., as a conventional watch and which includes various sensing means for switching and for shutter opening/closing. Display shutout control means 10 accepts a switching signal from switching means 9 and a closing signal from a timer control circuit 14, and issues a control signal. The control signal is fed to a liquid crystal shutter 13 which uses a liquid crystal panel arranged above an information display part 80, to perform opening/closing of the shutter.
    Type: Grant
    Filed: May 5, 1999
    Date of Patent: July 6, 2004
    Assignee: Citizens Watch Co., Ltd.
    Inventor: Masahiro Sase
  • Patent number: 6753831
    Abstract: A display device is designed to ensure that image processing parameters are transferred in response to switching between input video signals. The display panel is forceably stopped from being driven for a predetermined period when a video signal of an input target is switched over to another video signal.
    Type: Grant
    Filed: June 30, 2000
    Date of Patent: June 22, 2004
    Assignee: Pioneer Corporation
    Inventors: Shigeo Ide, Yasunori Higuchi, Naruhiro Sato, Kenichiro Hosoi
  • Patent number: 6750832
    Abstract: An information display system having an output display for presenting information. Optical means are provided that deflect an illumination beam path into the field of view of the observer. Further, a subdividable output display is created that makes it possible to partly obtain information in a vehicle via a head-up display and partly via a traditional or back-projection display. Given seats arranged in rows, for example in airplanes or buses, back rests of preceding seats contain an output display and a communication interface to the seat of the viewer.
    Type: Grant
    Filed: June 21, 1999
    Date of Patent: June 15, 2004
    Assignee: Siemens Aktiengesellschaft
    Inventor: Peter Kleinschmidt
  • Patent number: 6747637
    Abstract: The present invention provides an image data processing system to increase the speed of on-screen display (OSD) image processing. The image data processing system comprises M color code registers for storing a plurality of color codes and a first multiplexer electrically connected to every output port of the M color code registers. The first multiplexer comprises a control port for inputting an N-bit image code, and the first multiplexer chooses one of the outputs of the M color code registers as its output according to the N-bit image code. The image data processing system comprises a processor for storing M color codes in the M color code registers and periodically transmitting a plurality of N-bit image codes to the control port of the first multiplexer so that the first multiplexer periodically chooses one of the color codes stored in the M color code registers as its output according to one of the N-bit image codes.
    Type: Grant
    Filed: March 29, 2001
    Date of Patent: June 8, 2004
    Assignee: Mustek Systems Inc.
    Inventors: Kuei-Hsiang Chen, Cheng-Pang Chien, Tian-Quey Lee
  • Patent number: 6734839
    Abstract: In an active matrix display device, each pixel is provided with a pixel electrode, an organic semiconductor film deposited on the upper layer side of the pixel electrode, and a thin film luminescent element provided with an opposing electrode formed on the upper layer side of the organic semiconductor film. A protective film covering almost the entire surface of a substrate is formed on the upper layer of the opposing electrode. The protective film prevents the entry of moisture or oxygen to inhibit the deterioration of the thin film luminescent element.
    Type: Grant
    Filed: January 22, 2002
    Date of Patent: May 11, 2004
    Assignee: Seiko Epson Corporation
    Inventor: Ichio Yudasaka
  • Patent number: 6714180
    Abstract: A method for developing gray scale pixels on a computer display comprises the steps of examining image content data for display on at least a portion of a computer display to determine whether the image content comprises computer graphics or continuous tone images; and choosing from among spatial and temporal gray scaling for the image content data in response to whether the image content comprises computer graphics or continuous tone images.
    Type: Grant
    Filed: January 13, 1999
    Date of Patent: March 30, 2004
    Assignee: Intel Corporation
    Inventor: Morris Jones
  • Patent number: 6707447
    Abstract: A computer input device is provided which is programmable to DOS and Windows programs that have mouse function capability. The mouse function is configured as a ball-mouse familiar to CAD-CAM, positioned like a baseball in a mitt and opposably manipulated by each thumb. The device communicates with a computer mainframe or network configuration, by molding the flat 101 IBM Keyboard into the glove conforming to the opposable grasp of the human hand, whose intradigital keystrokes are assigned by the “touch” system of typewriter input. The 101 IBM keyboard is decimated bilaterally into the interdigital gloves of eight fingers and two thumbs, incorporating the ball-mouse attribute. A “treatment gauntlet” immobilizes and manipulates the hand-wrist-elbow in several treatment modalities palliative of carpal tunnel syndrome.
    Type: Grant
    Filed: December 3, 1998
    Date of Patent: March 16, 2004
    Inventor: Richard Goranowski
  • Patent number: 6707437
    Abstract: An image display apparatus includes a display panel having an electron source, an acceleration electrode for accelerating electrons emitted from the electron source and phosphors for emitting light by collision of electrons accelerated by the acceleration electrode, and a detector for detecting a current flowing through the acceleration electrode during a non-display period. In addition, a controller is provided to decrease the luminance level, stop display driving or transmit warning information when the current detected becomes more than a predetermined value.
    Type: Grant
    Filed: April 27, 1999
    Date of Patent: March 16, 2004
    Assignee: Canon Kabushiki Kaisha
    Inventors: Mitsutoshi Kuno, Osamu Sagano, Akira Fujii
  • Patent number: 6697045
    Abstract: A flat panel display device including a panel unit for displaying an image, a main body unit controlling an image displayed on the panel unit, and a folder connecting the panel unit and the main body unit.
    Type: Grant
    Filed: January 29, 2002
    Date of Patent: February 24, 2004
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Yoon-ki Min
  • Patent number: 6697032
    Abstract: A display device having an integral docking station to facilitate the display device to be used in conjunction with a palm sized computing device for applications executing on the palm sized computing device is disclosed. The display device includes a flat panel display, a display controller, a microcontroller, a docking station including a communication interface, and a chassis integrally housing the earlier enumerated elements. Together, the enumerated elements facilitate removable coupling of the palm sized computing device to the display device to allow the flat panel display to be used in conjunction with said palm sized computing device under the control of said microcontroller for applications executing on said palm sized computing device. In various embodiments, the display device additionally includes at least a selected one of a number of other I/O peripherals. In other embodiments, other extended I/O capabilities, such as storage media, keyboard and cursor control are also provided.
    Type: Grant
    Filed: December 2, 2002
    Date of Patent: February 24, 2004
    Inventors: Prasanna R. Chitturi, Sushil Shah
  • Patent number: 6686913
    Abstract: A monitor provides analog conditioning circuitry for supplying a symmetrical high speed analog output signal generated from inverted and non-inverted digital data to imagers for a display of the monitor. The circuitry includes an upper bias amplifier for generating a precision upper DC offset signal. a lower bias amplifier for generating a precision lower DC offset signal, a switch for alternating selection of a precision DC offset signal with each frame, and a summing amplifier for adding the selected precision DC offset signal to a high speed analog signal provided by a digital-to-analog converter. Selection of the precision DC offset signal is controlled by an inversion signal provided to the switch from an inversion bit of a display controller. The digital data inversion is controlled by inversion circuitry within the display controller. The analog conditioning circuitry thus provides a single gain path and also provides low speed signal paths decoupled from a high speed signal path.
    Type: Grant
    Filed: June 27, 2001
    Date of Patent: February 3, 2004
    Assignee: Duke University
    Inventors: David W. Engler, Mark W. Welker
  • Patent number: 6680730
    Abstract: A method and software for remote control of computer apparatus is disclosed. The method and software use computer network communications to effect remote control of apparatus that are connected to a computer at a remote location.
    Type: Grant
    Filed: January 25, 1999
    Date of Patent: January 20, 2004
    Inventors: Robert Shields, Steven Stout
  • Patent number: 6661406
    Abstract: A touch panel coordinate rotation device is provided in a touch panel device that includes a touch panel provided on the image plane of a display device and a coordinate detecting device for detecting the touched position on the touch panel and outputting the coordinates of the touched position. The touch panel coordinate rotation device can rotate the coordinates of a touch panel at a desired angle. The touch panel coordination rotation device includes a memory device for storing a rotation angle of an image on the display device based on the standard angle, and a coordinate calculating device for calculating the new coordinates by rotating the coordinate output from the coordinate detecting device at the rotation angle stored in the memory device, when the rotation angle stored in the memory device is not 0.
    Type: Grant
    Filed: October 16, 2000
    Date of Patent: December 9, 2003
    Assignee: NEC Corporation
    Inventor: Atuya Enoki
  • Patent number: 6653996
    Abstract: In a display device including, for each pixel, an organic EL element (60) and TFTs (30, 40) for controlling the element, a sequential circuit (350) is provided for stopping supply of power source voltages Vvdd and Hvdd to drivers (80, 90) for driving the TFTs (30, 40) which control each organic EL element (60) after stopping supply of power source voltage Pvdd to the organic EL element (60) when the device is turned off.
    Type: Grant
    Filed: March 28, 2001
    Date of Patent: November 25, 2003
    Assignee: Sanyo Electric Co., Ltd.
    Inventor: Naoaki Komiya