Patents by Inventor Kiyoshi Hidaka

Kiyoshi Hidaka has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 8730370
    Abstract: According to one embodiment, a correction-parameter storing unit corrects a position of a captured image captured by an image sensor, and an image-position correcting unit corrects the position of the captured image for each pixel based on the correction parameter.
    Type: Grant
    Filed: February 9, 2011
    Date of Patent: May 20, 2014
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Kiyoshi Hidaka
  • Publication number: 20110234860
    Abstract: According to one embodiment, a correction-parameter storing unit corrects a position of a captured image captured by an image sensor, and an image-position correcting unit corrects the position of the captured image for each pixel based on the correction parameter.
    Type: Application
    Filed: February 9, 2011
    Publication date: September 29, 2011
    Applicant: Kabushiki Kaisha Toshiba
    Inventor: Kiyoshi HIDAKA
  • Patent number: 7595793
    Abstract: A plain display apparatus has a plurality of display elements formed in vicinity of signal lines and scanning lines disposed in a matrix form, and a signal line drive circuit which switches order of supplying pixel data to the signal lines at random for each horizontal line.
    Type: Grant
    Filed: January 30, 2006
    Date of Patent: September 29, 2009
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Kiyoshi Hidaka
  • Publication number: 20090109209
    Abstract: Image data is displayed on a screen of a liquid crystal panel on the basis of an interlaced image data, by a liquid crystal display driver. On the screen, identical images for two successive lines are displayed. The crystal display driver is provided with source line driving circuits for driving source lines of the liquid crystal panel. Each of the source line driving circuits includes an image data holding circuit, a mask data holding circuit to hold mask data containing replacement data for selectively replacing the image data. An image data masking circuit provides the replacement data and the image data read out from the image data holding circuit selectively. By the operation, a driving signal is provided to corresponding one of the source lines.
    Type: Application
    Filed: October 21, 2008
    Publication date: April 30, 2009
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Kiyoshi Hidaka, Hideyuki Sugawara
  • Publication number: 20080252654
    Abstract: A display control circuit has a memory configured to store three-colors pixel data, a first selector configured to select one color pixel data for m pixels in order among the three-colors pixel data for the m pixels read out from the memory when performing vertically long display in a display panel, where m is an integer of 1 or more, and to select one color pixel data for n pixels in order among the three-colors pixel data for the n pixels read out from the memory when performing horizontally long display in a display panel, where n is an integer of 1 or more, and different from m, a second selector configured to select pixel data for one pixel in order among the pixel data for m pixels selected by the first selector when performing the vertically long display, and to select pixel data for one pixel in order among the pixel data for n pixels selected by the first selector when performing the horizontally long display, a D/A converter configured to convert the pixel data selected by the second selector into a
    Type: Application
    Filed: April 9, 2008
    Publication date: October 16, 2008
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventor: Kiyoshi Hidaka
  • Publication number: 20080024421
    Abstract: A liquid crystal display driver comprising: a first register for writing a setting value for display in response to a write control signal asynchronous with a clock signal outputted at a timing of switching display cycles; first data holding unit which holds an output from the first register in response to the clock signal; racing monitoring period setting unit which sets a period for monitoring an occurrence of racing in the output signal from the first register due to the timing of the clock signal; second data holding unit which holds an output from the first register in response to a clock signal which is the clock signal delayed for a period set by the racing monitoring period setting unit; racing detection unit which detects whether a racing state occurs in the output signal from the first register due to a timing of the clock signal; selection unit which outputs an output signal from the first register when the racing state is detected by the racing detection unit, and which outputs an output signal fr
    Type: Application
    Filed: July 18, 2007
    Publication date: January 31, 2008
    Inventor: Kiyoshi Hidaka
  • Publication number: 20060187162
    Abstract: A plain display apparatus has a plurality of display elements formed in vicinity of signal lines and scanning lines disposed in a matrix form, and a signal line drive circuit which switches order of supplying pixel data to the signal lines at random for each horizontal line.
    Type: Application
    Filed: January 30, 2006
    Publication date: August 24, 2006
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventor: Kiyoshi Hidaka
  • Patent number: 6933915
    Abstract: A small chip size and high picture quality, and also a quick CPU access operation to memory are achieved for a semiconductor device for driving liquid crystals.
    Type: Grant
    Filed: June 28, 2001
    Date of Patent: August 23, 2005
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Kiyoshi Hidaka, Takeshi Suyama
  • Patent number: 6870541
    Abstract: This invention provides an image display apparatus for displaying data stored in a random access memory (RAM) such as LCD, more specifically a display driver achieving easy and flexible display control such as scroll in a display screen without increasing load on CPU and an image display apparatus including the same.
    Type: Grant
    Filed: January 12, 2001
    Date of Patent: March 22, 2005
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Ken Yamamoto, Kiyoshi Hidaka, Teruhisa Kudo
  • Patent number: 6369790
    Abstract: A segment electrode driving circuit of a liquid crystal driving circuit comprises: data storing means for storing therein k+1 values in accordance with the k function values and 2k k-bit data and for simultaneously outputting 2k values on the basis of the alternating signal and a field select signal; 2k power supply lines provided so as to correspond to 2k outputs of the data storing means; a first analog multiplexer for connecting each of the 2k power supply lines to one of k+1 power supplies, each of which has a potential different from each other, on the basis of a corresponding one of the 2k outputs of the data storing means corresponding to a corresponding one of the 2k power supply lines; and a second analog multiplexer, provided for each of segment electrodes, for receiving k display data corresponding to the selected k common electrodes from the RAM for display data, and for selecting one of the 2k power supply lines on the basis of the k display data to connect the selected one of the 2k po
    Type: Grant
    Filed: April 13, 1999
    Date of Patent: April 9, 2002
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Kiyoshi Hidaka
  • Publication number: 20020003518
    Abstract: A small chip size and high picture quality, and also a quick CPU access operation to memory are achieved for a semiconductor device for driving liquid crystals.
    Type: Application
    Filed: June 28, 2001
    Publication date: January 10, 2002
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Kiyoshi Hidaka, Takeshi Suyama
  • Publication number: 20010007453
    Abstract: This invention provides an image display apparatus for displaying data stored in a random access memory (RAM) such as LCD, more specifically a display driver achieving easy and flexible display control such as scroll in a display screen without increasing load on CPU and an image display apparatus including the same.
    Type: Application
    Filed: January 12, 2001
    Publication date: July 12, 2001
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Ken Yamamoto, Kiyoshi Hidaka, Teruhisa Kudo
  • Patent number: 5448259
    Abstract: This invention provides a driving apparatus for a liquid-crystal display, comprising a dot-matrix liquid-crystal display with column electrodes and row electrodes, a control circuit for, in enlarging and displaying the display data, producing a display control signal containing a plurality of pulses during the latch period of a latch signal that latches the display data, a column-electrode driving section for latching the display data in a latch circuit in response to the display control signal from the control circuit, and based on the latched display data, causing a driving circuit to drive the column electrodes of the liquid-crystal display, and a row-electrode driving section for simultaneously driving a plurality of adjacent row electrodes of the liquid-crystal display in response to the display control signal from the control circuit.
    Type: Grant
    Filed: October 11, 1994
    Date of Patent: September 5, 1995
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Kiyoshi Hidaka
  • Patent number: 5241304
    Abstract: A dot-matrix display apparatus comprising a display panel and two integrated circuits. The panel has a number of column electrodes extending vertically and parallel to one another, and a number of row electrodes extending horizontally and parallel to one another. Two TAB films are secured to the upper and lower edges of the panel. The integrated circuits are mounted on these TAB films, respectively. The first integrated circuit distributes odd-numbered ones of pixel data items simultaneously to the odd-numbered column electrodes, whereas the second integrated circuit distributes the even-numbered pixel data simultaneously to the even-numbered column electrodes. Either integrated circuit has an interface circuit and a control circuit, which cooperate to select the odd-numbered pixel data items or the even-numbered pixel data items. The pixel data items, thus selected, are stored into a RAM, and are supplied to the column electrodes, when necessary.
    Type: Grant
    Filed: June 8, 1990
    Date of Patent: August 31, 1993
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Eiichi Munetsugu, Kiyoshi Hidaka