Patents Examined by Mansour M. Said
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Patent number: 7679589Abstract: The present invention relates to a liquid crystal display device with a source driver in which a significant signal delay is not generated, and which has a fast response speed. The present invention also provides a liquid crystal display device comprising a scan driver including a D/A converter for outputting analog signals corresponding to gradation data input, a triangular wave generator for outputting triangular wave signals, and a comparator for applying data voltage to each pixel which include OCB liquid crystal cells by comparing the analog signals with the triangular wave signals. The data voltage is a PWM pulse with a varied voltage width.Type: GrantFiled: January 6, 2006Date of Patent: March 16, 2010Assignee: Samsung Mobile Display Co., Ltd.Inventor: Chul-Woo Park
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Patent number: 7675490Abstract: A method of compensating the uniformity of an OLED device that includes measuring the performance of light-emitting elements at three or more different input intensity values. Calculation of parameters a and b, for each light-emitting element, is performed to minimize the sum, for each of the three or more input intensity values i, of a minimization function: ƒ(yi,i,(yi?g(yi,i,a,b))2) where yi is the performance value of the light-emitting element or groups of elements in response to an input intensity value i, and g is a function that is a simplified representation of the performance of the one or more light-emitting elements or groups of elements. A linear transformation function is formed as: ƒ(i)=mi+k, where m and k depend upon the function g, and the parameters a and b.Type: GrantFiled: November 3, 2006Date of Patent: March 9, 2010Inventors: Ronald S. Cok, Christopher J. White, Paul J. Kane
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Patent number: 7675495Abstract: A TFT-LCD capable of repairing discontinuous lines includes a repairing circuit, which includes a plurality of repairing OP amplifiers and a high-impedance detecting unit. The high-impedance detecting unit detects states of input terminals of the OP amplifiers. The high-impedance detecting unit enables a control signal to enable the OP amplifier when the input terminal is not at floating state. The high-impedance detecting unit disables the control signal to disable the OP amplifier when the input terminal is at floating state, so that no output competition between the OP amplifiers is generated.Type: GrantFiled: November 28, 2005Date of Patent: March 9, 2010Assignee: Sunplus Technology Co., Ltd.Inventors: Yong-Nien Rao, Shih-Tzung Chou, Chun-Lin Hou
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Patent number: 7671847Abstract: A touch panel for an electronic apparatus is provided. The touch panel comprises a thin film transistor substrate, a plurality of conductive islets, a supporting pattern layer and an elastic conductive film. The plurality of conductive islets is formed on the thin film transistor substrate. The supporting pattern layer is formed above the thin film transistor substrate. The supporting pattern layer has a plurality of apertures. Each of the plurality of apertures for exposing at least part of each of the plurality of conductive islets. The elastic conductive film is formed on the supporting pattern layer.Type: GrantFiled: January 6, 2006Date of Patent: March 2, 2010Assignee: AU Optronics Corp.Inventor: Chien-Sen Weng
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Patent number: 7667669Abstract: There is provided a display device for a vehicle having a seat. The display device includes an assembly housing adapted to mount at a rear portion of the seat. A receiver is adapted to receive at least one of video and audio signals from at least one external input device. At least one wireless transmitter operatively coupled to the receiver, is adapted to wirelessly transmit the audio signals to at least one wireless headphone set. The display device is adapted to reproduce the video signals. In some embodiments of the invention, the at least one wireless transmitter is adapted to transmit the audio signals based on Code-Division Multiple Access (CDMA) technology.Type: GrantFiled: August 5, 2004Date of Patent: February 23, 2010Assignee: Audiovox CorporationInventors: Patrick M. Lavelle, Thomas C. Malone, James R. Tranchina
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Patent number: 7667676Abstract: Exemplary embodiments of the present invention reduce display irregularity in order to enhance display quality. A liquid crystal panel includes a plurality of pixel electrodes provided at intersections of a plurality of scanning lines and a plurality of data lines, a scanning line driving circuit to sequentially select the plurality of scanning lines, and a data line driving circuit to sample an image signal VID supplied to an image signal line that is provided in common to the plurality of data lines and to supply the sampled signal to each data line.Type: GrantFiled: October 21, 2004Date of Patent: February 23, 2010Assignee: Seiko Epson CorporationInventor: Toru Aoki
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Patent number: 7663584Abstract: A field sequential LCD includes a reset selector supplying a reset signal having a higher voltage level than a data signal to the liquid crystal. The reset selector selects the reset signal in response to a reset control signal, and supplies the selected reset signal to a data line.Type: GrantFiled: January 5, 2006Date of Patent: February 16, 2010Assignee: Samsung Mobile Display Co., Ltd.Inventor: Takeshi Okuno
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Patent number: 7656389Abstract: In a computer system having a display and a keyboard, a computer readable medium includes instructions for invoking a message hook procedure based on a mouse message indicative of a mouse event. Instructions also provide for identifying at least one focus application that has a current keyboard focus and of converting the mouse message into a command for the focus application. The command is then sent to the focus application and the mouse message is prevented from being routed to any other applications. In one embodiment, the commands include the command to page forward or backward through pages of Internet documents. In other embodiments, instead of converting the mouse message into a command, the message hook procedure displays a graphical user interface based on the focus application and the mouse message. The graphical user interface includes one or more commands that the user may select.Type: GrantFiled: December 3, 2001Date of Patent: February 2, 2010Assignee: MIcrosoft CorporationInventors: Manolito E. Adan, Todd E. Holmdahl, Michael R. Hooning, Steven T. Kaneko, Terry M. Lipscomb, Robert Scott Plank
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Patent number: 7646364Abstract: A pixel circuit, display device, and driving method thereof are provided. The pixel circuit which is disposed in a place where a signal line through which a signal current is caused to flow, and scanning lines through which control signals are supplied, respectively, cross each other and which includes an electroluminescence element, a drive transistor for supplying a drive current to the electroluminescence element, and a control portion adapted to operate in accordance with the control signals for controlling the drive current of the drive transistor based on the signal current, the control portion including first sampling unit for sampling the signal current being caused to flow through the signal line, second sampling unit for sampling a predetermined reference current being caused to flow through the signal line just before or after the signal current, and difference unit for generating a control voltage corresponding to a difference between the sampled signal current and the sampled reference current.Type: GrantFiled: November 29, 2005Date of Patent: January 12, 2010Assignee: Sony CorporationInventors: Junichi Yamashita, Katsuhide Uchino
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Patent number: 7646363Abstract: A display device is disclosed. The display device includes: a pixel array part; and a drive part that drives the pixel array part. The pixel array part includes row-wise first scan lines and second scan lines, column-wise signal lines, pixels arranged in a matrix form on parts where the lines intersect, and power supply lines and ground lines that supply power to the respective pixels. The drive part includes a first scanner that sequentially supplies first control signals to the respective first scan lines and line-sequentially scans the pixels in units of rows, a second scanner that sequentially supplies second control signals to the respective second scan lines according to the line-sequential scan, and a signal selector that supplies video signals to the column-wise signal lines according to the line-sequential scan.Type: GrantFiled: August 7, 2007Date of Patent: January 12, 2010Assignee: Sony CorporationInventors: Junichi Yamashita, Katsuhide Uchino
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Patent number: 7646367Abstract: When a resistance load inverter is used to control lighting/non-lighting of a pixel, in accordance with characteristic variations of a transistor forming the resistance load inverter, variations occur in light emission of each pixel. As an inverter in a pixel, an N channel transistor and a P channel transistor are used to apply a CMOS inverter. Even when characteristics of the transistor forming the CMOS inverter vary and inverter transfer characteristics vary, there is little effect on controlling lighting/non-lighting of the pixel, therefore, light emission variations of each pixel can be eliminated. Further, a signal potential of a scan line is used as one power source of a potential of the inverter, therefore, an aperture ratio of the pixel can be increased.Type: GrantFiled: January 9, 2006Date of Patent: January 12, 2010Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventor: Hajime Kimura
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Patent number: 7639212Abstract: A novel PDP device capable of reducing the peak current of a sustain discharge without the need to modify circuits has been disclosed.Type: GrantFiled: August 17, 2005Date of Patent: December 29, 2009Assignee: Fujitsu Hitachi Plasma Display LimitedInventors: Akira Otsuka, Takashi Sasaki, Akhiro Takagi
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Patent number: 7639235Abstract: In a computer system having a display and a keyboard, a computer readable medium includes instructions for invoking a message hook procedure based on a mouse message indicative of a mouse event. Instructions also provide for identifying at least one focus application that has a current keyboard focus and of converting the mouse message into a command for the focus application. The command is then sent to the focus application and the mouse message is prevented from being routed to any other applications. In one embodiment, the commands include the command to page forward or backward through pages of Internet documents. In other embodiments, instead of converting the mouse message into a command, the message hook procedure displays a graphical user interface based on the focus application and the mouse message. The graphical user interface includes one or more commands that the user may select.Type: GrantFiled: December 4, 2001Date of Patent: December 29, 2009Assignee: Microsoft CorporationInventors: Manolito E. Adan, Todd E. Holmdahl, Michael R. Hooning, Steven T. Kaneko, Terry M. Lipscomb, Robert Scott Plank
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Patent number: 7636071Abstract: A method of displaying information in an information display device may include retrieving an information file from storage media accessible from an information display device, displaying a first portion of the retrieved file in a first electronic display screen based on a first value from a sensor, displaying a second portion of the retrieved file in a second electronic display screen based on a second value from the sensor, and subsequently displaying either the first portion or a third portion of the retrieved file in the first electronic display screen based on a third value from the sensor. The information display device may include a first panel and a second panel connected to the first panel, two or more electronic display screens disposed on the first and second panels, and a sensor that provides a value representative of an angle of the first panel relative to the second panel.Type: GrantFiled: November 30, 2005Date of Patent: December 22, 2009Assignee: Hewlett-Packard Development Company, L.P.Inventor: Robert W. O'Gorman
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Patent number: 7633485Abstract: A human-machine interface device for controlling a plurality of vehicle functions. The interface has a knob which is bidirectionally rotatable at a rest level and a pressed level. A selected one of the vehicle functions is selected by the knob at the rest level, and the selected one of the vehicle functions is controlled by the knob at the pressed level.Type: GrantFiled: January 29, 2004Date of Patent: December 15, 2009Assignee: Chrysler Group LLCInventors: Fred Reed, Robert P Hennessee, David M Zedan, Andrew Gillen
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Patent number: 7629964Abstract: A hand-held electronic device with a keyboard optimized for use with the thumbs is disclosed. In order to operate within the limited space available on a hand-held electronic device, the present invention optimizes the placement and shape of the keys, preferably using keys that are oval or oblong in shape, and that are placed at angles designed to facilitate thumb-typing. The angles at which keys on either side of the keyboard are placed is complimentary.Type: GrantFiled: April 26, 2007Date of Patent: December 8, 2009Assignee: Research In Motion LimitedInventors: Jason T Griffin, John A Holmes, Mihal Lazaridis, Herb A Little, Harry R Major
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Patent number: 7626582Abstract: A method and apparatus for automatic power-up and power-down of an electronic device is disclosed. More specifically, an electronic device may be automatically powered-up in response to removal of a user interface object from a portion of a housing of the electronic device. The electronic device may be placed in a power conservation mode when the user interface object is placed in the portion of the housing of the electronic device. The electronic device may include a cover operable to cover a display device of the electronic device, where the electronic device may be automatically powered-up in response to uncovering the display device. The electronic device may be placed in a power conservation mode when the display device is covered by the cover.Type: GrantFiled: March 20, 2006Date of Patent: December 1, 2009Assignee: Palm, Inc.Inventors: Regis Nicolas, Neal Osborn
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Patent number: 7623109Abstract: The present invention provides a display device which is capable of fetching input signals of a small amplitude into the inside thereof. A level converting circuit includes a first-conductive-type first transistor having a gate electrode to which input signals are applied through a first capacitive element, a second-conductive-type second transistor having a gate electrode to which input signals are applied through a second capacitive element, a first bias circuit which applies a first bias voltage to the gate electrode of the first transistor and a second bias circuit which applies a second bias voltage to the gate electrode of the second transistor. Here, the first bias voltage is a voltage which turns off the first transistor when a voltage applied to the gate electrode of the first transistor assumes a maximum value and the second bias voltage is a voltage which turns off the second transistor when a voltage applied to the gate electrode of the second transistor assumes a minimum value.Type: GrantFiled: September 5, 2006Date of Patent: November 24, 2009Assignee: Hitachi Displays, Ltd.Inventors: Hideo Sato, Shigeyuki Nishitani, Toshio Miyazawa
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Patent number: 7612743Abstract: An Electron Emission Display (EED) with decreased signal distortion has a data driver to convert data driving signals into display data signals having predetermined data voltage levels and to output the display data signals to data electrode lines. A method of driving the EED includes supplying an auxiliary voltage to the data electrode lines during blanking periods according to subsequent data and supplying the display data signals during active periods between the blanking periods.Type: GrantFiled: May 18, 2005Date of Patent: November 3, 2009Assignee: Samsung SDI Co., Ltd.Inventors: Ji-Won Lee, Duck-Gu Cho
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Patent number: 7609250Abstract: Provided are an optical module and an input apparatus having the same. The input apparatus includes the optical module having a circuit board provided with a light source and a sensor installed therein, a lens disposed at one side of the circuit board, and a support bracket disposed at the other side of the circuit board; and a main body having a through-hole at its one side and into which the lens of the optical module is inserted. Therefore, it is possible to uniformly maintain the height of the sensor for receiving light based on the thickness of the lens to maintain a certain depth of focus.Type: GrantFiled: November 30, 2005Date of Patent: October 27, 2009Assignee: ATLab Inc.Inventor: Oan-Kyu Choi