Patents Examined by Leonid Shapiro
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Patent number: 8514212Abstract: A drive circuit of a displayer for driving at least a pixel, including: an output stage coupled to the pixel and controlled by a pixel signal to switch an output voltage on the pixel; a calibration device coupled between the output stage and the pixel and including an input end controlled by a bias voltage further calibrating the brightness of the pixel; a stabilizing device coupled between the input end of the calibration device and the pixel signal for stabilizing the voltage on the input end of the calibration device to be at the level of the bias voltage after a variation; and a accelerating device coupled between the stabilizing device and a voltage source for generating the bias voltage and accelerating the speed stabilizing the voltage on the input end of the calibration device to be at the level of the bias voltage.Type: GrantFiled: November 9, 2009Date of Patent: August 20, 2013Assignee: Princeton Technology CorporationInventor: Yen-Ynn Chou
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Patent number: 8514208Abstract: Methods and apparatus for optical wireless communication. In one embodiment, a wireless optical video system in which video content (e.g., DVI or HDMI) is transmitted wirelessly between a digital video source and a display device. This wireless optical communication is accomplished using a laser, encoded with the digital video data, directed from an optical transmitter to an optical receiver. In another embodiment, the data to be communicated includes high-definition video content.Type: GrantFiled: January 20, 2010Date of Patent: August 20, 2013Assignees: Sony Corporation, Sony Electronics Inc.Inventors: Mark Champion, Robert A. Unger, Robert Hardacker
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Patent number: 8514160Abstract: A display panel including a plurality of scan lines, a plurality of data lines, and a plurality of pixels is provided. The data lines are disposed substantially perpendicular to the scan lines Each of the pixels is electrically connected with the corresponding data line and the corresponding scan line and the pixels are arranged as an array. The data lines are grouped into a plurality of groups and each of the groups is disposed between two adjacent pixel columns and has N data lines, where N is a positive integer greater than or equal to 3. A portion of the data lines of at least a first group among the groups cross over a portion of the scan lines. The rest data lines of the first group cross over all the scan lines.Type: GrantFiled: May 26, 2010Date of Patent: August 20, 2013Assignee: Au Optronics CorporationInventors: Yu-Sheng Huang, Ya-Ling Hsu, Hung-Lung Hou
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Patent number: 8502762Abstract: This invention relates to an image processing method for improving the quality of an image to be displayed on a display device and to a liquid-crystal display device using the same, and aims at providing an image processing method for providing wide viewing angle and excellent tonal-intensity viewing angle characteristic and a liquid-crystal display device using the same. Combined together are a higher-luminance pixel to be driven higher in luminance than the luminance data of an image to be displayed and a lower-luminance pixel to be driven lower in luminance than the luminance data, to determine a luminance on the higher-luminance pixel and luminance on the lower-luminance pixel as well as an area ratio of the higher-luminance and lower-luminance pixels in a manner obtaining a luminance nearly equal to a desired luminance based on the luminance data.Type: GrantFiled: March 30, 2004Date of Patent: August 6, 2013Assignee: Sharp Kabushiki KaishaInventors: Tsuyoshi Kamada, Hidefumi Yoshida, Yoshio Koike, Toshiaki Suzuki, Tetsuya Kobayashi, Yasutoshi Tasaka, Masakazu Shibasaki, Kunihiro Tashiro, Kazuya Ueda, Katsuyoshi Hiraki
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Patent number: 8497831Abstract: An electro-optical device includes pixel electrodes corresponding to intersections of a plurality of scanning lines and a plurality of data lines and specific to the pixels, a common electrode facing the pixel electrode, and a switching element that establishes conduction between the data line and the pixel electrode when a selection voltage is applied to the scanning line, a control circuit that supplies a high voltage having a predetermined value and a low voltage lower than the high voltage alternately at predetermined intervals to the common electrode; a scanning line driving circuit that selects the plurality of scanning lines in a predetermined order and that applies the selection voltage to each of the selected scanning lines; and a data line driving circuit that supplies a data signal defining the grayscale levels of the pixels to the data lines in a period during which one of the scanning lines is selected and during which the voltage applied to the common electrode is maintained at the high voltageType: GrantFiled: September 25, 2006Date of Patent: July 30, 2013Assignee: Seiko Epson CorporationInventor: Akihiko Ito
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Patent number: 8493289Abstract: Scanning mirror based display system and method. A method comprises sampling a scanned light provided by a scanning mirror, converting the sampled scanned light into an electrical signal, analyzing the electrical signal to determine a position of the scanned light, and controlling the light source or the scanning mirror based on the analyzed electrical signal. The electrical signal based on the sampled scanned light may be used to ensure proper operation of the scanning mirror display system, such as determining failure of the scanning mirror, proper rendering of colors, determining whether the scanned light is following a desired scan path at a desired scan rate, and so forth.Type: GrantFiled: November 5, 2007Date of Patent: July 23, 2013Assignee: Texas Instruments IncorporatedInventors: Scott Patrick Overmann, Daniel J. Morgan
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Patent number: 8487915Abstract: A mobile device providing a mobile processing function such as a mobile telephone and/or a personal digital assistant. The mobile device includes a mobile device body, a processing system within the body, the processing system programmed to be part of providing the mobile processing function, a projector coupled to the body to project an image onto a substantially planar surface when the mobile device body is on the surface at a predetermined angle relative to the surface, and a pen-location transcription system coupled to the processing system to record the positions of a writing implement at a plurality of instants of time by transmitting energy between the writing implement and a device mechanically coupled to the mobile device body. In one version, the device mechanically coupled to the mobile device body is a sensor array including at least two sensors of the transmitted energy. The writing implement includes a transmitter of the transmitted energy.Type: GrantFiled: September 7, 2004Date of Patent: July 16, 2013Assignee: Luidia Inc.Inventors: Ari Birger, Philip A. Weaver
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Patent number: 8482515Abstract: A display apparatus includes a first substrate provided with a plurality of closed containers, a fluid filled in the closed containers, a plurality of positively charged particles which have a relative dielectric constant different from the fluid and are dispersed and held in the fluid, a plurality of negatively charged particles which have a same color as the positively charged particles and a relative dielectric constant different from the fluid and are dispersed and held in the fluid, and a pair of electrodes for generating an electric field in the closed containers. The display apparatus displays an image formed by a positional distribution of positively and negatively charged particles in each of the closed containers.Type: GrantFiled: August 8, 2008Date of Patent: July 9, 2013Assignee: Canon Kabushiki KaishaInventor: Yojiro Matsuda
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Patent number: 8477081Abstract: A display has a louver shade having at least two louver segments, a display segment mounted on each louver segment, each display segment being a part of a larger display, drive electronics electrically coupled to each display segment to provide image data to display elements in the display segment, and a control circuit to provide the image data to the drive electronics, the control circuit arranged to provide display data when the louver segments are in a closed position.Type: GrantFiled: January 21, 2009Date of Patent: July 2, 2013Assignee: Palo Alto Research Center IncorporatedInventor: Jurgen H. Daniel
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Patent number: 8477128Abstract: A driving circuit and a liquid crystal display using the same. In the driving circuit, a first switch and a second switch are provided in a VCOM driver thereof. The first switch is designed to be turned on to a ground a VCOM terminal of a display capacitor, and the second switch is designed to be turned on to couple a constant voltage level DC VCOM to the VCOM terminal of the display capacitor. In addition, a timing controller of the driving circuit is designed for reducing power consumption, which controls the statuses of the first and second switches and determines when to allow a positive polarity voltage to be coupled to the display capacitor to charge the display capacitor for positive polarity display.Type: GrantFiled: October 27, 2010Date of Patent: July 2, 2013Assignee: Himax Technologies LimitedInventors: Wen-Lin Yang, Chih-Lung Kuo
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Patent number: 8466885Abstract: A touch screen which uses light sources at one or more edges of the screen which directs light across the surface of the screen and at least two cameras having electronic outputs located at the periphery of the screen to receive light from said light sources. A processor receives the outputs of said cameras and employs triangulation techniques to determine the location of an object proximate to said screen. Detecting the presence of an object includes detecting at the cameras the presence or absence of direct light due to the object, using a screen surface as a mirror and detecting at the cameras the presence or absence of reflected light due to an object. The light sources may be modulated to provide a frequency band in the output of the cameras.Type: GrantFiled: October 13, 2009Date of Patent: June 18, 2013Assignee: Next Holdings LimitedInventor: John Newton
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Patent number: 8462081Abstract: A screen includes a first set of louver members at least partially disposed in the screen and located proximate to a first side of the screen, and a second set of louver members at least partially disposed in the screen and located proximate to a second side of the screen. An observer on either side of the screen sees an image produced by light directed to that observer by that set of louvers on the same side of the screen as the observer. Objects on the other side of the screen from the observer are visible to the observer between the louvers.Type: GrantFiled: March 9, 2011Date of Patent: June 11, 2013Assignee: Hewlett-Packard Development Company, L.P.Inventors: Huei Pei Kuo, Laurence M. Hubby, Jr., Steven L. Naberhuis, Henryk Birecki
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Patent number: 8462103Abstract: A dual screen display system (10) having, a base (24), a pair of electronic display screens (16), an arm assembly (20, 22) supporting the display screens (16) and connected to the base, swingable mountings (28, 30) for swingably mounting the display screens, the mountings being adjustable as to the angular orientation of each of the display screens relative to the arm assembly between a first arrangement with the screens in a common plane, and a second arrangement in which the screens are inwardly swung positions thereby to permit each of the screens to be swung into desired operative angular orientation, and adjustable movement limiting devices (54), engaging the swinging mountings and limiting movement of the screens.Type: GrantFiled: December 21, 1999Date of Patent: June 11, 2013Inventors: Jerry Moscovitch, Ian C. Hall, Son Chung, Mark D. Elchuk
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Patent number: 8456411Abstract: A display unit having a pivot function and prolonged lives of light sources has been implemented according to the present invention. The display unit includes: a screen that is changeable between a first position and a second position and displays an image; at least one first light source that illuminates the screen in the first position; at least one second light source that illuminates the screen in the second position; and a turn-on control section that controls turning on of the first light source and the second light source according to a position. A display device and an information processing apparatus each provided with the display unit have also been implemented according to the present invention.Type: GrantFiled: December 20, 2007Date of Patent: June 4, 2013Assignee: Fujitsu LimitedInventor: Shinji Morimoto
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Patent number: 8436808Abstract: An apparatus is disclosed for supplying input signals to a computer. A sensor having the form of a sphere has a touch sensitive surface for generating position data for touch events. The sensor includes orientation sensors that determine rotation with respect to the earth's magnetic and gravitational fields. Orientation data may be combined with position data to interpret the orientation of touch events on the surface with respect to the computer's display. Cursor movement or text may be generated from touch events. Preferably the sphere has a roughened surface that generates sound when touched. Position data is generated by processing signals from microphones under the sphere's surface.Type: GrantFiled: December 22, 2004Date of Patent: May 7, 2013Assignee: Elo Touch Solutions, Inc.Inventors: Christopher Chapman, David L. Sandbach, Anthony Hardie-Bick
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Patent number: 8436789Abstract: An image orientation system is provided wherein images (rays of lights) are projected to a user based on the user's field of view or viewing angle. As the rays of light are projected, streams of air can be produced that bend or focus the rays of light toward the user's field of view. The streams of air can be cold air, hot air, or combinations thereof. Further, an image receiver can be utilized to receive the produced image/rays of light directly in line with the user's field of view. The image receiver can be a wearable device, such as a head mounted display.Type: GrantFiled: January 16, 2009Date of Patent: May 7, 2013Assignee: Microsoft CorporationInventors: Steven N. Bathiche, Hrvoje Benko, Stephen E. Hodges, Shahram Izadi, David Alexander Butler, William Ben Kunz, Shawn R. LeProwse
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Patent number: 8405651Abstract: A driving circuit includes a power supply, a plurality of conductive paths and a plurality of driving controller. The power supply is configured for providing a predetermined voltage. The conductive paths are connected to the power supply to receive the predetermined voltage. The driving controllers are connected to the conductive paths correspondingly. A first driving controller of the driving controllers has a first internal circuit configured for employing an internal voltage to perform functions provided by the first driving controller, and a resistance adjustment unit. The resistance adjustment unit is connected between a special conductive path and the first internal circuit. The second driving controller has a second internal circuit configured for employing a second internal voltage to perform functions provided by the second driving controller. A resistance value of the resistance adjustment unit is adjustable to make the first internal voltage same to the second internal voltage.Type: GrantFiled: January 20, 2009Date of Patent: March 26, 2013Assignee: Au Optronics Corp.Inventors: Ming-Hung Tu, Sheng-Kai Hsu
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Patent number: 8405601Abstract: A communication system comprises means defining a communication region, such as a touch-pad (151), having associated therewith a plurality of symbols (155) or the like and being responsive to a user-controlled pointing device whereby a desired symbol or the like can be selected by movement of the pointing device in a predetermined direction within the region (151).Type: GrantFiled: September 6, 2000Date of Patent: March 26, 2013Assignee: Malvern Scientific Solutions LimitedInventor: Marc Ivor John Beale
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Patent number: 8405575Abstract: A driving method of a plasma display device, the plasma display device having a plurality of first and second electrodes disposed adjacent to each other and a plurality of third electrodes disposed so as to intersect with the first and second electrodes, the driving method includes providing a reset period, an address period and a sustain discharge period for driving of the plasma display device, applying to the second electrode in the reset period a voltage with a waveform in which an applied voltage value increases with time, shortening a sustain time of achieved potential of the voltage with the waveform when a first display ratio of an input video signal is low as compared with a second display ratio which is higher than the first display ratio.Type: GrantFiled: April 23, 2010Date of Patent: March 26, 2013Assignee: Hitachi, Ltd.Inventors: Isao Furukawa, Makoto Onozawa, Tomokatsu Kishi, Takashi Sasaki
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Patent number: 8400479Abstract: A color signal processing apparatus calculates a target color gamut including color signal values of each pixel of an input video, and calculates target primary colors corresponding to the calculated target color gamut. The color signal processing apparatus produces the calculated target primary colors by mixing primary colors in an input color gamut of the input video, and converts and outputs the color signal values of each pixel of the input video to match the calculated target color gamut defined by the calculated target primary colors. Since it is possible to adaptively transform the input color gamut of the input video, the input video that is reproduced has an increased light quantity and an enhanced contrast.Type: GrantFiled: June 14, 2005Date of Patent: March 19, 2013Assignee: Samsung Electronics Co., Ltd.Inventors: Il-do Kim, Moon-cheol Kim, Dong-bum Choi