Patents Examined by Vincent E. Kovalick
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Patent number: 7352360Abstract: A multi-trail spot click-event detection method is disclosed, which uses a camera to capture a plurality of consecutive images from a display screen. The camera is connected to a host and sends the consecutive images to the host for determining if a click-event occurs. Firstly, pixels of each difference image with the brightness difference in a pre-determined range are selected to form blobs. Next, possible spots of the blobs in each difference image are found. Then, the possible spots found are assigned to a specific trail. Finally, when a spot of the specific trail is absent at a next time point immediately after the spot is presented, occurrence of a click-event is detected.Type: GrantFiled: December 30, 2003Date of Patent: April 1, 2008Assignee: Industrial Technology Research InstituteInventor: Sheng-Wen Jeng
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Patent number: 7348939Abstract: It is disclosed that there are a method and an apparatus of driving a plasma display panel that are adaptive for reducing an initialization period. A driving apparatus and a method of a plasma display panel according to the present invention include a driving circuit applying to the plasma display panel a ramp-up waveform rising from a first bias voltage and a ramp-down waveform falling down from a second bias voltage.Type: GrantFiled: November 28, 2006Date of Patent: March 25, 2008Assignee: LG Electronics Inc.Inventors: Eun Cheol Lee, Seong Ho Kang
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Patent number: 7345654Abstract: A three-dimensional image display apparatus includes an image display configured to output image light which arrays a plurality of pixels and has polarization, a lens array arranged in front of the image display, configured to function as lens at light which has a 1st polarization direction, and not to function as lens at light which has a 2nd polarization direction differed from the 1st polarization direction, and a birefringent phase modulator placed between the image display and the lens array and configured to rotate a polarization plane of the image light.Type: GrantFiled: March 1, 2007Date of Patent: March 18, 2008Assignee: Kabushiki Kaisha ToshibaInventors: Kazuki Taira, Yuzo Hirayama, Tatsuo Saishu, Rieko Fukushima, Ayako Takagi
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Patent number: 7342576Abstract: Disclosed is a liquid crystal display device including a liquid crystal panel having a shift register therein and an interface circuit for adjusting DC and AC levels, for compensating for a loss caused by elements and a resister of the shift register. A driving circuit of the liquid crystal display device includes a clock generation unit outputting a first clock signal as a gate clock signal, a second clock signal as an inverse signal of the first clock signal, and a start pulse, and a DC and AC level amplification unit for amplifying the first and second clock signals and the start pulse after adjusting DC and AC levels of the first and second clock signals and the start pulse, and outputting the first and second clock signals and the start pulse to the shift register.Type: GrantFiled: September 3, 2004Date of Patent: March 11, 2008Assignee: Boe Hydis Technology Co., Ltd.Inventor: Seung Won Chegal
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Patent number: 7339570Abstract: An image display device includes two data signal line drive circuits and two scan signal line drive circuits configured differently from each other. Different data signal line drive circuits and scan signal line drive circuit are compatible with different display formats. A display can be produced in the most suitable display format, and power consumption also can be reduced, by switch operating drive circuits according to the kind of input video and environmental conditions. Further, an image can be written over another image by writing video signals to signal lines with a time lag using a plurality of drive circuits; therefore, a superimposed display can be produced without externally processing the video signals. Thus, both a satisfactory image display and low power consumption can be achieved in an image display device.Type: GrantFiled: May 9, 2001Date of Patent: March 4, 2008Assignee: Sharp Kabushiki KaishaInventors: Yasushi Kubota, Hajime Washio, Michael James Brownlow, Graham Andrew Cairns, Yasuyoshi Kaise, Kazuhiro Maeda
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Patent number: 7336269Abstract: A control circuit and a method discharging capacitor/transistor, for a liquid crystal display (LCD), are provided. The control circuit includes a signal-off detector and an all-gate-on delay cell. When an LCD power-off signal is detected, a first control signal is transmitted to a power supply module for turning off power except the gate-on voltage, and turning off VGH after a specific delay time. A second control signal is also transmitted to the gate-on-delay cell, so that all gates of the pixel transistors are turned on after a second specific delay time. The charges on the pixel transistor are discharged via a source thereof before the gate-on voltage decreases below a threshold value, such that a residual image phenomenon caused by heterogeneous filming fabrication is reduced.Type: GrantFiled: September 24, 2004Date of Patent: February 26, 2008Assignee: Chunghwa Picture Tubes, Ltd.Inventors: Hsin-Chung Huang, Juin-Ying Huang, I-Cheng Chen
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Patent number: 7336282Abstract: An operation condition inputting system employing a tree state hierarchical menu is formed by classifying various operation conditions of an apparatus by at least one function and segmentalizing the at least one function into menu items to be optionally selected by a visually-impaired person.Type: GrantFiled: September 13, 2004Date of Patent: February 26, 2008Assignee: Ricoh Company, Ltd.Inventors: Yoshinaga Kato, Tetsuya Sakayori, Tetsuya Muroi, Junichi Takami, Bin Lu, Yoshifumi Sakuramata, Iwao Saeki
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Patent number: 7330164Abstract: A method for setting opto-sensor detection sensitivity in a projection video display comprising the steps of sequentially generating video signals of different colors for illuminating a sensor with video images of the video signals. In responsive to the video signals automatically selecting respective detection thresholds. Sequentially detecting sensor signals in excess of the respective detection thresholds. Coupling the detected sensor signals for automated adjustment of the projection video display.Type: GrantFiled: August 25, 2003Date of Patent: February 12, 2008Assignee: Thomson LicensingInventor: John Barrett George
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Patent number: 7327348Abstract: The present invention provides haptic sensations for a haptic feedback device and especially for a rotational device such as a knob. Force effects such as a hill force effect and barrier force effect allow easier selection of menu items, menus, values, or other options by the user. Force models are also described to allow greater selection functionality, such as a scrolling list with detents and rate control borders, a jog shuttle, a push-turn model, a double-push model, and a cast control model.Type: GrantFiled: August 14, 2003Date of Patent: February 5, 2008Assignee: Immersion CorporationInventors: Alex S. Goldenberg, Steven P. Vassallo, Kenneth M. Martin, Adam C. Braun
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Patent number: 7324071Abstract: A character display comprises fifty-nine segments arranged into rows and columns. Twenty eight of the fifty-nine segments define a periphery of the display, eleven additional segments define horizontal and vertical dividers that define four quadrants, and five additional segments are disposed in each of the four quadrants to define diagonals thereof.Type: GrantFiled: September 13, 2004Date of Patent: January 29, 2008Assignee: Sarnoff CorporationInventors: Joseph M Carpinelli, George Herbert Needham Riddle, Ian Gregory Hill
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Patent number: 7324078Abstract: A display apparatus including an offset value setting input part to specify an offset value for a DE signal determining an effective area of a video signal; and a DE signal generator to generate the DE signal depending on the offset value. With this configuration, the present invention provides a display apparatus and a control method thereof, which in advance, offsets a noise section contained in a video signal.Type: GrantFiled: September 3, 2004Date of Patent: January 29, 2008Assignee: Samsung Electronics Co., Ltd.Inventor: Young-chan Kim
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Patent number: 7324099Abstract: In an image display device according to the present invention, means for selecting a pixel to which a display signal current is to be passed has a function of selecting a plurality of pixels simultaneously. Thus, high-precision display can be realized with a number of pixels.Type: GrantFiled: February 6, 2004Date of Patent: January 29, 2008Assignee: Hitachi Displays, Ltd.Inventors: Hajime Akimoto, Toshihiro Satou, Hiroshi Kageyama
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Patent number: 7324082Abstract: A portable data processing device with one touch control and a switching method thereof apply to the portable data processing device with a touch pad and a built-in one touch control official system, and users can directly press the key on the touch pad to execute the corresponding application program or function.Type: GrantFiled: May 11, 2004Date of Patent: January 29, 2008Assignee: Inventec CorporationInventor: Jih-Fong Lin
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Patent number: 7321349Abstract: A display element having a plurality of pixel portions arranged two-dimensionally with a predetermined pixel pitch and a microlens array including a plurality of microlenses arranged two-dimensionally corresponding to the plurality of pixel portions on an incident side or an emission side of light with respect to the pixel portions, wherein, in the microlens array, each microlens has a lens surface of a hyperboloid of revolution, and a lens pitch of the plurality of microlenses is set to a pitch smaller than the lens pitch able to substantially equivalently maintain a converging efficiency of a lens of the hyperboloid of revolution and a lens of an ellipsoid of revolution with respect to the incident light and able to maintain a converging efficiency higher than the converging efficiency of the lens of the ellipsoid of revolution or wherein, in the microlens array, each microlens has a lens surface of a hyperboloid of revolution, and a lens pitch is 20 ?m or less; a display device; and a microlens array.Type: GrantFiled: September 19, 2003Date of Patent: January 22, 2008Assignee: Sony CorporationInventors: Toshihiro Fukuda, Tomoki Furuya
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Patent number: 7312772Abstract: Controlling the brightness of an image display device includes generating a clock signal having a frequency that varies according to locations of row electrodes in a predetermined column line and generating a signal having a pulse width corresponding to a gray scale value of an input image signal in accordance with the clock signal corresponding to the location of the row electrode of a pixel at which an image signal is to be displayed.Type: GrantFiled: May 28, 2004Date of Patent: December 25, 2007Assignee: Samsung SDI Co., Ltd.Inventor: Jung-woo Kim
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Patent number: 7312794Abstract: A bistable electro-optic display has a plurality of pixels, each of which is capable of displaying at least three gray levels. The display is driven by a method comprising: storing a look-up table containing data representing the impulses necessary to convert an initial gray level to a final gray level; storing data representing at least an initial state of each pixel of the display; receiving an input signal representing a desired final state of at least one pixel of the display; and generating an output signal representing the impulse necessary to convert the initial state of said one pixel to the desired final state thereof, as determined from said look-up table. The invention also provides a method for reducing the remnant voltage of an electro-optic display.Type: GrantFiled: June 24, 2005Date of Patent: December 25, 2007Assignee: E Ink CorporationInventors: Robert W. Zehner, Holly G. Gates, Karl R. Amundson, Joanna Au, Ara N. Knaian, Jonathan L. Zalesky, Alexi C. Arango
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Patent number: 7310073Abstract: The present invention relates to a plasma display panel, and more particularly, to an electrode structure of a plasma display panel capable of improving brightness and efficiency. According to a first embodiment of the present invention, in a plasma display panel of a long column structure having a front substrate and a rear substrate that are opposite to each other, the transparent electrodes of the scan electrodes or the sustain electrodes include projections projected toward the center of the discharge cells every discharge cell. Also, a discharge start voltage and a discharge sustain voltage can be lowered and brightness and efficiency can be increased. It is also possible to maintain color temperature equilibrium every RGB cell and to reduce an erroneous discharge of each cell.Type: GrantFiled: August 31, 2004Date of Patent: December 18, 2007Assignee: LG Electronics Inc.Inventors: Jae Bum Park, Sung Chun Choi
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Patent number: 7304620Abstract: The method and apparatus for displaying an image using liquid generate a segment fluid row, in which plural liquid masses each of which includes first liquid having at least one predetermined coloring matter and are separated from each other are arranged in a row shape, by sequentially and intermittently supplying predetermined amounts of the first liquid in accordance with image information of a desired image to be displayed to a flow path provided in accordance with an image display region for image displaying; and display the desired image in the image display region with the first liquid by causing the generated segment fluid row to move to a predetermined position of said flow path.Type: GrantFiled: September 3, 2004Date of Patent: December 4, 2007Assignee: Fuji Photo Film Co., Ltd.Inventors: Ryoichi Yamamoto, Seiichi Inoue, Kenichi Kodama, Tsutomu Yokouchi, Kazuo Sanada, Koichi Kimura
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Patent number: 7298350Abstract: Image data is inputted from a data processing means 123 into storage means 124 so that light emitting elements of one line 128a of a light-emitting element (yellow) line head 128 are activated to expose pixels on an image carrier according to an output signal form a shift resistor 124a. The image carrier is moved in the direction of arrow X in such a manner that the pixels reach a position corresponding to the light emitting elements in a next line 128b. At this point of time, the image data are transmitted to a shift resistor 124b and then outputted to the line 128b so as to expose the pixels again. The image data are transmitted among the shift resistors sequentially by moving the image carrier, thereby sequentially repeatedly expose the same pixels.Type: GrantFiled: September 26, 2003Date of Patent: November 20, 2007Assignee: Seiko Epson CorporationInventors: Atsunori Kitazawa, Yujiro Nomura, Kiyoshi Tsujino
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Patent number: 7295199Abstract: A display device including a plurality of display elements (500) arranged in a matrix, wherein each display element includes a display pixel (510) coupled to a switch (530), and each display element includes an addressable latch (540) having an output coupled to a controlling input of the switch. The addressable latch includes a row address input (532) and a column address input (556). In one mode of operation, at least some display elements are activated at a first rate, and other display elements are activated at a second rate less than the first refresh rate by selectively addressing the display elements.Type: GrantFiled: August 25, 2003Date of Patent: November 13, 2007Assignee: Motorola IncInventors: Ken K. Foo, Robert J. Bero, Pinky Yu