Patents Examined by Steven E. Holton
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Patent number: 8184080Abstract: The present invention relates a liquid crystal display. The liquid crystal display includes a liquid crystal panel assembly including a plurality of pixels arranged in a matrix, a gate driver applying gate signals to the pixels for application of data signals to the pixels, a data driver selecting gray voltages corresponding to gray signals and applying the selected gray voltages to the pixels as the data signals, and a signal controller providing the gray signals and control signals for controlling the gray signals for the gate driver and the data driver. The data signals include normal data signals and a black data signal. The data driver alternately applies the normal data signals and the black data signal to the pixels under control of the signal controller. A scanning direction of the normal data signals is opposite in adjacent frames.Type: GrantFiled: September 17, 2002Date of Patent: May 22, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Jang-Kun Song, Chang-Hun Lee, Hak-Sun Chang
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Patent number: 7990403Abstract: A color Liquid Crystal Display (LCD) device for displaying a color image using at least four different primary colors, the device including an array of Liquid Crystal (LC) elements, driving circuitry adapted to receive an input corresponding to the color image and to selectively activate the LC elements of the LC array to produce an attenuation pattern corresponding to a gray-level representation of the color image, and an array of color sub-pixel filter elements juxtaposed and in registry with the array of LC elements such that each color sub-pixel filter element is in registry with one of the LC elements, wherein the array of color sub-pixel filter elements comprises at least four types of color sub-pixel filter elements, which transmit light of the at least four primary colors, respectively.Type: GrantFiled: July 31, 2007Date of Patent: August 2, 2011Assignee: Genoa Color Technologies Ltd.Inventors: Ilan Ben-David, Shmuel Roth, Moshe Ben-Chorin
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Patent number: 7986308Abstract: A method of detecting and interpreting a path of designated positions is disclosed. The method concurrently detects a plurality of designated positions on a touch panel, again detects the plurality of designated positions subsequent to a travel of the designated positions, determines the distances between each of the current designated positions and the respective immediately preceding designated positions, treats an immediately preceding designated position, closest to the current designated position of interest, as the immediately preceding designated position of the current designated position of interest, and acquires the path of each designated position, thereby recognizing the paths of the plurality of designated positions that move concurrently. A combination of the paths of the plurality of designated positions is interpreted to identify a designation input by a user, and an operation thus designated is executed.Type: GrantFiled: November 1, 2006Date of Patent: July 26, 2011Assignee: Canon Kabushiki KaishaInventors: Masanori Wakai, Satomi Kayano
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Patent number: 7952553Abstract: A circuit includes an amplifier circuit that is configured to generate voltage levels between a power voltage level and a common reference voltage level at an output thereof responsive to image data. A reset control circuit is configured to reset the voltage level at the output of the amplifier circuit to about one-half of a difference between the power voltage level and the common reference voltage level.Type: GrantFiled: October 30, 2006Date of Patent: May 31, 2011Assignee: Samsung Electronics Co., Ltd.Inventor: Choi Yoon-Kyung
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Patent number: 7944416Abstract: An image display apparatus includes a plurality of pixels. Each pixel includes a light emitting device; a drive transistor that has a gate electrode, a source electrode, and a drain electrode. One of the source and drain electrodes are electrically connected to one end of the light emitting device. Each pixel also includes a first switching transistor that electrically connects the gate electrode and the one electrode according to a scan signal, and a capacitor that has first and second electrodes. The first electrode is electrically connected to the gate electrode. The apparatus also includes a data line connected to the second electrode; a data line drive circuit that supplies a brightness potential and a reference potential for the brightness potential to the data line.Type: GrantFiled: October 31, 2006Date of Patent: May 17, 2011Assignee: Kyocera CorporationInventors: Shinya Ono, Yoshinao Kobayashi, Shinji Takasugi
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Patent number: 7940249Abstract: A device in accordance with the present invention has a top metal layer that shows increased resistance to degradation such as abrasion, erosion, or both. A device in accordance with the present invention includes a device layer and a top metal layer. The device layer includes contact sensing elements and has a plurality of depressions that extend into the device layer. The first metal layer overlies or is adjacent to the contact sensing elements and extends into the depressions. Preferably, a surface of the metal layer opposed to the device layer is contoured to the depressions. In some embodiments the top metal layer makes electrical connections to the contact sensor, but in other embodiments it does not. Preferably, the device forms a finger swipe sensor, and the contact sensing elements are coupled to finger swipe processing electronics.Type: GrantFiled: October 31, 2006Date of Patent: May 10, 2011Assignee: Authentec, Inc.Inventor: George Perreault
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Patent number: 7932901Abstract: A timing generating circuit with low power consumption and a small layout area, a display apparatus including the timing generating circuit as one peripheral driving circuit, and a portable terminal including the display apparatus as a display output section are provided. In the timing generating circuit, which is formed on an insulating substrate and generates output pulses SRFF1out to SRFFnout having different frequencies based on a master clock MCK, a clock generating circuit (11) generates an operating clock having a lower frequency than the master clock MCK frequency. Then, a counter section (12) operates based on this operating clock and successively outputs shifted pulses S/R1out to S/Rmount from shift registers (121-1) to (121-m). An output pulse generating section (13) generates output pulses SF1out to SFnout based on combinations of the shifted pulses S/R1out to S/Rmount.Type: GrantFiled: July 24, 2007Date of Patent: April 26, 2011Assignee: Sony CorporationInventors: Yoshitoshi Kida, Yoshiharu Nakajima, Toshikazu Maekawa
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Patent number: 7928966Abstract: A computer input pen comprises a cylindrical housing and a weight eccentrically disposed within the cylindrical housing relative to a longitudinal axis of the cylindrical housing. The weight is rotationally coupled relative to the cylindrical housing with a desired level of friction to absorb rotational energy of the cylindrical housing relative to the weight.Type: GrantFiled: March 31, 2004Date of Patent: April 19, 2011Assignee: Hewlett-Packard Development Company, L.P.Inventor: Steven S. Homer
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Patent number: 7928974Abstract: An active-matrix liquid crystal display device has pixels arranged in a matrix which each include a thin film transistor (TFT) as an active element. When the device is in a power-off state, TFTs in all the pixels are switched on, and all horizontal switches are turned on so that all data lines are supplied with a potential equal to the potential of common electrodes of the pixels. This forms a discharging path for discharging residual charge in all the pixels, and the discharging path can instantaneously discharge the residual charges.Type: GrantFiled: August 9, 2007Date of Patent: April 19, 2011Assignee: Sony CorporationInventors: Noboru Toyozawa, Yoshiharu Nakajima, Yoshihiko Toyoshima
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Patent number: 7924250Abstract: The invention relates to an image display device with active matrix comprising a number of light emitters forming a network divided into rows and columns; a current modulator for each emitter; and at least one inverse bias voltage generator. This device is characterized in that it also comprises: an inverse bias switch for each emitter, said inverse bias switch being connected, on the one hand, to each modulator and, on the other hand, to the or each inverse bias voltage generator; and control electrodes able to drive all the inverse bias switches of a row of emitters. The invention also relates to a method of driving this device.Type: GrantFiled: February 7, 2006Date of Patent: April 12, 2011Assignee: Thomson LicensingInventors: Philippe Le Roy, Sylvain Thiebaud, Arnaud Trochet
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Patent number: 7924244Abstract: Display irregularities in light emitting devices, which develop due to dispersions per pixel in the threshold value of TFTs for supplying electric current to light emitting elements, are obstacles to increasing the image quality of the light emitting devices. An electric potential in which the threshold voltage of a TFT (105) is either added to or subtracted from the electric potential of a reset signal line (110) is stored in capacitor means (108). A voltage, in which the corresponding threshold voltage is added to an image signal, is applied to a gate electrode of a TFT (106). TFTs within a pixel are disposed adjacently, and dispersion in the characteristics of the TFTs does not easily develop. The threshold value of the TFT (105) is thus cancelled, even if the threshold values of the TFTs (106) differ per pixel, and a predetermined drain current can be supplied to an EL element (109).Type: GrantFiled: January 24, 2003Date of Patent: April 12, 2011Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Hajime Kimura, Yoshifumi Tanada
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Patent number: 7916131Abstract: A process for a monitor working in a DPMS mode applies when a monitor ends a working mode and enters the DPMS mode. In the DPMS mode, when the signal processor of the monitor detects there is no signal input to the connecting interface, the signal processor will be off and inform the micro-controller to open the signal detecting function to find whether there is a signal input to the connecting interface. When the micro-controller detects there is no signal input for a certain of time, the micro-controller will enter the sleep status. As a result, the purpose of saving the electricity can be achieved.Type: GrantFiled: November 2, 2006Date of Patent: March 29, 2011Assignee: Mitac Technology Corp.Inventor: Chia-Chang Chiu
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Patent number: 7898535Abstract: A system and method for providing dynamic refresh rates for displays is disclosed. According to one aspect of the disclosure, an information handling system can include a refresh rate processing module coupled to a memory operable to store video display content. The information handling system can further include a display unit operable to display the video display content using a variable refresh rate. The information handling system can further include a refresh rate selector logic coupled to the display unit display. The refresh rate selector logic can be operable to alter the variable refresh rate in response to a content type stored within the memory.Type: GrantFiled: October 31, 2006Date of Patent: March 1, 2011Assignee: Dell Products, LPInventor: Randall E. Juenger
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Patent number: 7889214Abstract: A display device produces color images by sequentially projecting monochromatic images. Multispectral light is projected via optical means and a filter arrangement with changeable primary color filters onto an imaging device. For each primary color the imaging device produces a number of constant-length pulses corresponding to a desired brightness level. The pulse length is chosen to be as short as possible for a first primary color. The pulse length for the other primary colors is adapted according to the respective share of the corresponding color filters in the color wheel. The time during which secondary colors are produced due to a transition between two primary color filters is increased by increasing the aperture of the optical means, by spatially relocating the focal point of the optical means for a disc-like filter arrangement, or by accordingly adding pure color light at the onset and the end of a transition between two color filter segments which produces secondary color light.Type: GrantFiled: October 11, 2005Date of Patent: February 15, 2011Assignee: Thomson LicensingInventor: Ingo Tobias Doser
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Patent number: 7880732Abstract: A touch screen arrangement fitted to a mobile telephone apparatus and built-on or resting on a substrate. The touch screen includes a display unit and a number of light pulse emitting units and a number of light pulse receiving units, said units being edge-related to said display unit. The light pulse emitting units and the light pulse receiving units are orientated adjacent said display unit, with the directions of said emitted and received light pulses being at right angles, or at least generally at right angles, to a planar surface on the display unit. The touch screen also includes four light pulse deflecting devices positioned close to the display surface.Type: GrantFiled: November 4, 2002Date of Patent: February 1, 2011Assignee: Neonode Inc.Inventor: Magnus George Goertz
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Patent number: 7872636Abstract: Apparatus having corresponding methods and computer programs comprises: an accelerometer adapted to be worn by a user, wherein the accelerometer, when worn by the user, generates an acceleration signal representing acceleration of the user along a plurality of axes; a display device to generate a display comprising one or more objects and a cursor; and a controller to move the cursor in the display in accordance with the acceleration signal.Type: GrantFiled: October 31, 2006Date of Patent: January 18, 2011Assignee: Marvell International Ltd.Inventors: Paramesh Gopi, Alarabi Omar Hassen
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Patent number: 7872646Abstract: A power supply generating circuit, a display apparatus incorporating the same, and a portable terminal device using the display apparatus as an output display unit are provided. In a DC-DC converter having a charge pump circuit (31), a voltage dividing circuit (32), and a regulation circuit (33), p-channel MOS transistors (Qp21, Qp22, Qp31) are turned on/off based on an enable pulse enb to make the voltage dividing circuit (32) and a comparator (41) active only for a period of regulation time and inactive otherwise. This can cause a current to flow in voltage-divider resistors (R1, R2) and the comparator (41) only for a certain period of time required for the regulation operation, thus reducing the power consumption loss caused by a constant current flow in the voltage-divider resistors (R1, R2) and the comparator (41).Type: GrantFiled: October 30, 2006Date of Patent: January 18, 2011Assignee: Sony CorporationInventors: Noboru Toyozawa, Yoshiharu Nakajima
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Patent number: 7830348Abstract: A liquid crystal display device that comprises a panel, a timing controller for providing control signals to the panel, a video chip for receiving video signals and providing decoded video signals to the panel, a phase lock loop for providing a reference clock frequency, and a source driver for receiving the control signals and video signals to drive the panel, wherein the timing controller, the video chip and the phase lock loop are incorporated into the source driver in an integrated circuit.Type: GrantFiled: June 14, 2004Date of Patent: November 9, 2010Assignee: AU Optronics CorporationInventors: Chi-Mao Hung, Chien-Hung Chen
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Patent number: 7817143Abstract: A function input method for providing in advance to a user information on a function to be executed when the user presses a button to execute a specific function in a portable terminal, such as a cellular phone, and a button input apparatus using the same. The method includes: receiving a button input when the user presses one of a plurality of buttons; determining whether a mode of the button input is a touch mode or a click mode; and displaying a preview image of a function corresponding to the pressed button if the button input mode is the touch mode and executing the function corresponding to the pressed button if the button input mode is the click mode.Type: GrantFiled: October 31, 2006Date of Patent: October 19, 2010Assignee: Samsung Electronics Co., Ltd.Inventors: Byung-seok Soh, Seong-woon Kim, Chang-kyu Choi, Jun-ho Park, Kwon-lu Lee
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Patent number: 7817129Abstract: An integrated line selection apparatus within active matrix arrays is described. The circuit includes multiple gate line drive transistor devices, each gate line drive transistor device having a drain coupled to a gate line of multiple gate lines in a gate line driver circuit coupled to an active matrix array and a source to receive an input signal. The circuit further includes at least one address line transistor device corresponding to each gate line transistor device, each address line transistor device having a drain coupled to a gate of the corresponding gate line drive transistor device and a gate coupled to a corresponding address line, such that by asserting a predetermined combination of voltages on the plurality of address lines, a single gate line of said plurality of gate lines is selected to receive the input signal to be transmitted to a corresponding pixel within the corresponding active matrix array.Type: GrantFiled: October 30, 2006Date of Patent: October 19, 2010Assignee: Hewlett-Packard Development Company, L.P.Inventors: Warren Jackson, Carl Taussig, Hao Luo