Patents Examined by Vince E Kovalick
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Patent number: 8049691Abstract: Processing of images for displaying on a display for displaying images on a liquid crystal display.Type: GrantFiled: September 30, 2003Date of Patent: November 1, 2011Assignee: Sharp Laboratories of America, Inc.Inventors: Hao Pan, Xiao-Fan Feng, Scott J. Daly
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Patent number: 7876298Abstract: A spatial light modulator clocking method, called fast-clear, which employs embedded clear hardware in the SLM to enable the fast-clear bit to generate least-significant short-bit periods and without any bit ordering restrictions. In this method, fast data clears 34 are inserted between block data loads 32,36 within a frame refresh period. This method virtually eliminates the artifacts associated with the earlier reset-release timing method without the bit-ordering restriction of the jog-clear method.Type: GrantFiled: October 24, 2005Date of Patent: January 25, 2011Assignee: Texas Instruments IncorporatedInventors: Gregory J. Hewlett, Donald B. Doherty
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Patent number: 7821508Abstract: A driving apparatus for a display device includes a signal controller synthesizing first and second signals, respectively, having first and second signal levels to output a synthesized signal having third to fifth signal levels, a signal extracting unit extracting the first and second control signals from the synthesized signal, a gate driver generating gate signals based on the first control signal, and a data driver generating data signals based on the second control signal.Type: GrantFiled: July 19, 2006Date of Patent: October 26, 2010Assignee: Samsung Electronic Co., Ltd.Inventors: Keun-Woo Park, Pil-Mo Choi, Kook-Chul Moon, Ung-Sik Kim, Seock-Cheon Song, Ho-Suk Maeng, Sang-Hoon Lee
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Patent number: 7755617Abstract: A method drives an electronic circuit for driving a driven element including a transistor which includes control, first, and second terminals, and in which a conduction state representing conduction between the first and second terminals changes depending on a potential of the control terminal, a first capacitive element that includes first and second electrodes, the first electrode being electrically connected to the control terminal, and a second capacitive element that includes third and fourth electrodes, the driven element being supplied with at least one of a driving voltage having a voltage level based on the conduction state in the transistor and a driving current having a current level based on the conduction state in the transistor.Type: GrantFiled: May 30, 2007Date of Patent: July 13, 2010Assignee: Seiko Epson CorporationInventor: Takashi Miyazawa
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Patent number: 7755598Abstract: The present invention provides an image processing method for a display device. The method includes: calculating an average brightness of an image; adjusting the average brightness to generate an adjusted average brightness; utilizing Brightness Preserving Bi-Histogram Equalization (BBHE) and the adjusted average brightness to process the image; and displaying the image.Type: GrantFiled: January 25, 2007Date of Patent: July 13, 2010Assignee: ASUSTeK Computer Inc.Inventors: Sun-Chen Yang, Yii-Lin Wu, Hsiang-Jui Hung
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Patent number: 7746330Abstract: A circuit and method of reducing noises for improving quality of display in a liquid crystal display (LCD) system. The LCD system includes an LCD panel and at least one lamp. In operation the LCD system is supplied with a vertical synchronization signal and a horizontal synchronization signal. In one embodiment, the method comprises the steps of determining a lamp driving frequency for the at least one lamp responsive to the horizontal synchronization signal, and generating a lamp driving signal with the lamp driving frequency to be received by the at least one lamp for producing light, wherein the following formulae (1) and (2) are satisfied: f lamp = 2 ? n - 1 m ? H sync + ? ( 1 ) and ? ? H sync / m ? ? ? 0 ( 2 ) where Hsync is the frequency of the horizontal synchronization signal in unit of (Hz); flamp is the lamp driving frequency for the lamp driving signal in unit of (Hz); m, n=1, 2, 3, . . .Type: GrantFiled: December 22, 2005Date of Patent: June 29, 2010Assignee: Au Optronics CorporationInventors: Chia-Wei Yu, Hung-Min Shih
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Patent number: 7738001Abstract: This invention generally relates to apparatus and methods for driving passive, electro-optic displays with greater efficiency. The invention is particularly suitable for driving passive matrix organic light emitting diode displays.Type: GrantFiled: March 30, 2004Date of Patent: June 15, 2010Assignee: Cambridge Display Technology LimitedInventors: Paul R. Routley, Euan C. Smith
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Patent number: 7737931Abstract: A semiconductor device capable of displaying a still image with low consumption power is provided. In the semiconductor device incorporated with a semiconductor display device capable of displaying the still image, a memory portion is mounted on a substrate on which a pixel portion is formed. As a mounting method, the memory portion is formed on the substrate on which the pixel portion is formed or a stick driver including the memory portion is used. When the still image is displayed using image data stored in such a memory portion, the still image can be displayed by inputting only simple control signals from the outside of the semiconductor device. Thus, there are provided the semiconductor display device capable of displaying the still image with low consumption power and the semiconductor device incorporated with the semiconductor display device.Type: GrantFiled: August 3, 2006Date of Patent: June 15, 2010Assignee: Semiconductor Energy Laboratory Co., LtdInventors: Jun Koyama, Kiyoshi Kato
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Patent number: 7733335Abstract: 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: February 27, 2006Date of Patent: June 8, 2010Assignee: E Ink CorporationInventors: Robert W. Zehner, Holly G. Gates, Alexi C. Arango, Karl R. Amundson, Joanna F. Au, Ara N. Knaian
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Patent number: 7733311Abstract: A gray scale bistable electro-optic display is driven by storing a look-up table containing data representing the impulses necessary for transitions, storing data representing at least an initial state of each pixel of the display, storing data representing temporal and gray level prior states of each pixel, 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 for a transition, as determined from the look-up table, dependent upon the temporal and gray level prior states. Other similar methods for driving such displays are also disclosed.Type: GrantFiled: June 21, 2006Date of Patent: June 8, 2010Assignee: E Ink CorporationInventors: Karl R. Amundson, Robert W. Zehner, Ara N. Knaian, Benjamin Zion
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Patent number: 7728789Abstract: A 2D and 3D image display apparatus including: a display panel forming an image by spatially modulating an input image signal; a polarization conversion device converting a polarization direction of a beam incident into the polarization conversion device according to a voltage applied in synchronization with the image signal; and a switching barrier unit including first polarization units having a first polarization direction and second polarization units having a second polarization direction in an alternate manner, and transmitting the beam passing the polarization conversion device through at least one of the first polarization unit and the second polarization unit. Therefore, a 3D image can be displayed without degrading a horizontal resolution thereof by using a combination of polarization devices with low fabrication costs, which may utilize a time-sequential display method.Type: GrantFiled: April 3, 2006Date of Patent: June 1, 2010Assignee: Samsung Electronics Co., Ltd.Inventors: Sung-yong Jung, Dae-sik Kim, Kyung-hoon Cha, Tae-hyeun Ha
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Patent number: 7710349Abstract: In a method for sharing multimedia application data by a plurality of communication devices, at least two communication devices establish a short-rang wireless communication link to a data distribution device. At least one of the communication devices informs the data distribution device of the data that are offered for sharing, and these data are presented by the data distribution device on a display. A user of one of the communication devices being connected to the data distribution device selects and requests data that he wants to download to a communication device, and the requested data are then transmitted to the communication device via the data distribution device.Type: GrantFiled: July 14, 2006Date of Patent: May 4, 2010Assignee: Sony Ericsson Mobile Communications ABInventor: David De Léon
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Patent number: 7710440Abstract: A video signal is processed using dither coefficients. Dither coefficients pattern signals are generated. Each pattern signal carries positive and negative dither coefficients arranged in an (n×m) matrix where “n” and “m” being positive integers larger than zero, the sum total of the coefficients being zero. One of the pattern signal is selected for each predetermined unit of picture carried by the video signal. Or, it is selected according to locations of dither coefficients on pixels arranged on a display panel. Dither coefficients of the selected pattern signal are added to an input video signal, thus outputting a video signal to be supplied to the display panel. Instead of the dither coefficients pattern signals, dither pattern signals can be generated, each carrying positional data indicating locations of dither coefficients on the pixels on the display panel.Type: GrantFiled: July 19, 2006Date of Patent: May 4, 2010Assignee: Victor Company of Japan, Ltd.Inventors: Shigehiro Masuji, Hideki Aiba
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Patent number: 7710392Abstract: A pointing device for a computer system includes a displacement transducer of the pointing device, provided with: an inertial sensor, supplying acceleration signals indicative of an acceleration according to two axes of detection; and a processing unit, which, on the basis of the acceleration signals, generates velocity signals regarding the pointing device. The processing unit further includes: a state-recognition stage, for selectively recognizing a condition rest and a motion condition of the pointing device on the basis of the velocity signals; and an estimating module, controlled by the state-recognition stage for determining an estimate of stationary disturbance contained in the acceleration signals when the pointing device is in the rest condition.Type: GrantFiled: December 22, 2005Date of Patent: May 4, 2010Assignee: STMicroelectronics S.r.l.Inventor: Marco Bianchessi
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Patent number: 7710390Abstract: The object of the invention is a method and a software application embodying the method for displaying the information in the display (10) of a data processing device in a situation where a portion of the display (10) area, and thus also a portion of the information on the display, is covered by an obstacle (11) in front of the display (10). The method according to the invention detects the size and position of the obstacle (11), and then regroups (12c) the information in the display (10) into a portion of the display (10), which is not left behind the detected obstacle (11).Type: GrantFiled: June 5, 2003Date of Patent: May 4, 2010Assignee: Nokia CorporationInventor: Timo Tokkonen
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Patent number: 7705806Abstract: A method for driving a plasma display panel, including a plurality of display electrode pairs and a plurality of address electrodes, and which includes at least an address period and a sustain discharge period. In the address period, performing address processing, between the address electrodes and a display electrode configured as either a set of odd or even numbered display electrodes, sequentially to all of one of the sets of display electrode pairs, and thereafter address processing, between the address electrodes and a display electrode configured as the other set of display electrode pairs, sequentially to all of the other set of display electrode pairs. In the sustain discharge period, supplying at least one first sustain discharge pulse to the one set of display electrode pairs, and supplying at least one second sustain discharge pulse to the other set of display electrode pairs.Type: GrantFiled: October 31, 2005Date of Patent: April 27, 2010Assignee: Hitachi Plasma Patent Licensing Co., LtdInventors: Tomoyuki Ishii, Tadatsugu Hirose, Yoshikazu Kanazawa, Toshio Ueda, Tomokatsu Kishi, Shigetoshi Tomio, Fumitaka Asami
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Patent number: 7688303Abstract: In conventional liquid crystal display controllers such as for portable telephone sets, the display is reduced in the stand-by state but the liquid crystal display duty is not changed, i.e., even the common electrodes of the rows that are not producing display are scanned, and the consumption of electric power is not decreased to a sufficient degree in the stand-by state. A liquid crystal display controller (2) includes a drive duty selection register (34) capable of being rewritten by a microprocessor (1), and a drive bias selection register (32). When the display is changed from the whole display on a liquid crystal display panel (3) to a partial display on part of the rows only, the preset values of the drive duty selection register and of the drive bias selection register are changed, so that the display is selectively produced on a portion of the liquid crystal display panel at a low voltage with a low-duty drive.Type: GrantFiled: November 8, 2006Date of Patent: March 30, 2010Assignee: Renesas Technology Corp.Inventors: Yoshikazu Yokota, Kunihiko Tani, Gorou Sakamaki, Katsuhiko Yamamoto, Takashi Yoneoka, Kazuhisa Higuchi, Kimihiko Sugiyama
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Patent number: 7688297Abstract: 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: February 27, 2006Date of Patent: March 30, 2010Assignee: E Ink CorporationInventors: Robert W. Zehner, Holly G. Gates, Karl R. Amundson, Joanna F. Au, Ara N. Knaian, Jonathan L. Zalesky, Alexi C. Arango
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Patent number: 7683856Abstract: An interface apparatus includes a main unit, an array of interface modules, driver circuitry, and a remote unit. The main unit outputs files to an output unit, is detachably couplable to interface modules and assigns content identifiers to interface modules. The array presents an image to the user and each interface module can be engaged by a user. The driver circuitry is adapted to drive the array to present an image to the user based upon the user's engagement with an interface module. The remote unit is coupled to the output unit and can be detachably coupled to the interface module. When coupled to the interface module, the remote unit can access the assigned identifier and transmit a request signal to the main unit based on the identifier. The request signal is adapted to cause the main unit to output a file identified by the identifier to the output unit.Type: GrantFiled: March 31, 2006Date of Patent: March 23, 2010Assignees: Sony Corporation, Sony Electronics Inc.Inventors: Ryutaro Sakai, Isamu Arie, Yuki Kubota, Kuninori Hyogo, Fumiya Matsuoka
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Patent number: 7675478Abstract: The camera reads identification information of the user, which is contained in an identification card, through a card reading part. The camera connects automatically to a server designated in accordance with the read identification information through a communication interface. Then, the camera transmits and stores the data of recorded images to the designated server. The camera retrieves the image data stored in the server, and reproduces and displays the image on an image display at the back of the camera. A plurality of cameras in which the same user's identification information is set can be controlled altogether in the image-recording and reproduction by one camera. One camera in which the identification information of a plurality of user's is set can distribute the recorded image data to the servers of the users simultaneously.Type: GrantFiled: March 12, 2007Date of Patent: March 9, 2010Assignee: Fujifilm CorporationInventor: Akihisa Yamazaki