Patents Examined by Vince E Kovalick
  • Patent number: 8049691
    Abstract: Processing of images for displaying on a display for displaying images on a liquid crystal display.
    Type: Grant
    Filed: September 30, 2003
    Date of Patent: November 1, 2011
    Assignee: Sharp Laboratories of America, Inc.
    Inventors: Hao Pan, Xiao-Fan Feng, Scott J. Daly
  • Patent number: 7876298
    Abstract: 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: Grant
    Filed: October 24, 2005
    Date of Patent: January 25, 2011
    Assignee: Texas Instruments Incorporated
    Inventors: Gregory J. Hewlett, Donald B. Doherty
  • Patent number: 7821508
    Abstract: 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: Grant
    Filed: July 19, 2006
    Date of Patent: October 26, 2010
    Assignee: 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
  • Patent number: 7755598
    Abstract: 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: Grant
    Filed: January 25, 2007
    Date of Patent: July 13, 2010
    Assignee: ASUSTeK Computer Inc.
    Inventors: Sun-Chen Yang, Yii-Lin Wu, Hsiang-Jui Hung
  • Patent number: 7755617
    Abstract: 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: Grant
    Filed: May 30, 2007
    Date of Patent: July 13, 2010
    Assignee: Seiko Epson Corporation
    Inventor: Takashi Miyazawa
  • Patent number: 7746330
    Abstract: 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: Grant
    Filed: December 22, 2005
    Date of Patent: June 29, 2010
    Assignee: Au Optronics Corporation
    Inventors: Chia-Wei Yu, Hung-Min Shih
  • Patent number: 7738001
    Abstract: 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: Grant
    Filed: March 30, 2004
    Date of Patent: June 15, 2010
    Assignee: Cambridge Display Technology Limited
    Inventors: Paul R. Routley, Euan C. Smith
  • Patent number: 7737931
    Abstract: 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: Grant
    Filed: August 3, 2006
    Date of Patent: June 15, 2010
    Assignee: Semiconductor Energy Laboratory Co., Ltd
    Inventors: Jun Koyama, Kiyoshi Kato
  • Patent number: 7733335
    Abstract: 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: Grant
    Filed: February 27, 2006
    Date of Patent: June 8, 2010
    Assignee: E Ink Corporation
    Inventors: Robert W. Zehner, Holly G. Gates, Alexi C. Arango, Karl R. Amundson, Joanna F. Au, Ara N. Knaian
  • Patent number: 7733311
    Abstract: 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: Grant
    Filed: June 21, 2006
    Date of Patent: June 8, 2010
    Assignee: E Ink Corporation
    Inventors: Karl R. Amundson, Robert W. Zehner, Ara N. Knaian, Benjamin Zion
  • Patent number: 7728789
    Abstract: 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: Grant
    Filed: April 3, 2006
    Date of Patent: June 1, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sung-yong Jung, Dae-sik Kim, Kyung-hoon Cha, Tae-hyeun Ha
  • Patent number: 7710440
    Abstract: 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: Grant
    Filed: July 19, 2006
    Date of Patent: May 4, 2010
    Assignee: Victor Company of Japan, Ltd.
    Inventors: Shigehiro Masuji, Hideki Aiba
  • Patent number: 7710390
    Abstract: 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: Grant
    Filed: June 5, 2003
    Date of Patent: May 4, 2010
    Assignee: Nokia Corporation
    Inventor: Timo Tokkonen
  • Patent number: 7710349
    Abstract: 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: Grant
    Filed: July 14, 2006
    Date of Patent: May 4, 2010
    Assignee: Sony Ericsson Mobile Communications AB
    Inventor: David De Léon
  • Patent number: 7710392
    Abstract: 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: Grant
    Filed: December 22, 2005
    Date of Patent: May 4, 2010
    Assignee: STMicroelectronics S.r.l.
    Inventor: Marco Bianchessi
  • Patent number: 7705806
    Abstract: 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: Grant
    Filed: October 31, 2005
    Date of Patent: April 27, 2010
    Assignee: Hitachi Plasma Patent Licensing Co., Ltd
    Inventors: Tomoyuki Ishii, Tadatsugu Hirose, Yoshikazu Kanazawa, Toshio Ueda, Tomokatsu Kishi, Shigetoshi Tomio, Fumitaka Asami
  • Patent number: 7688297
    Abstract: 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: Grant
    Filed: February 27, 2006
    Date of Patent: March 30, 2010
    Assignee: E Ink Corporation
    Inventors: Robert W. Zehner, Holly G. Gates, Karl R. Amundson, Joanna F. Au, Ara N. Knaian, Jonathan L. Zalesky, Alexi C. Arango
  • Patent number: 7688303
    Abstract: 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: Grant
    Filed: November 8, 2006
    Date of Patent: March 30, 2010
    Assignee: Renesas Technology Corp.
    Inventors: Yoshikazu Yokota, Kunihiko Tani, Gorou Sakamaki, Katsuhiko Yamamoto, Takashi Yoneoka, Kazuhisa Higuchi, Kimihiko Sugiyama
  • Patent number: 7683856
    Abstract: 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: Grant
    Filed: March 31, 2006
    Date of Patent: March 23, 2010
    Assignees: Sony Corporation, Sony Electronics Inc.
    Inventors: Ryutaro Sakai, Isamu Arie, Yuki Kubota, Kuninori Hyogo, Fumiya Matsuoka
  • Patent number: 7675478
    Abstract: 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: Grant
    Filed: March 12, 2007
    Date of Patent: March 9, 2010
    Assignee: Fujifilm Corporation
    Inventor: Akihisa Yamazaki