Patents by Inventor Haruhiko Okumura

Haruhiko Okumura 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: 7542017
    Abstract: A display device includes linear structures each having a first conductor linearly extended and a light emitting layer structure which covers at least a part of the conductor, the linear structures being arranged in parallel. The linear structures are electrically insulated by first insulating portions from one another. Second conductors are arranged in parallel so as to cross the linear structures and electrically connected to the light emitting layer structures at crossing portions arranged in a matrix. The linear conductors are electrically insulated by the linear conductors from one another.
    Type: Grant
    Filed: April 19, 2005
    Date of Patent: June 2, 2009
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Tsuyoshi Hioki, Haruhiko Okumura
  • Publication number: 20090135374
    Abstract: A display device includes: a light source configured to generate a coherent light beam; and an optical plate including a plurality of microlenses arranged with a period larger than the diameter of the light beam, the optical plate being configured to control the divergence angle of the light beam.
    Type: Application
    Filed: November 26, 2008
    Publication date: May 28, 2009
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Kazuo HORIUCHI, Naotada Okada, Haruhiko Okumura, Takashi Sasaki
  • Publication number: 20090109155
    Abstract: An image processing method for a liquid crystal display device includes: calculating first difference gradation, which is a difference between predicted attainment gradation and input gradation, the predicted attainment gradation being a predicted value of gradation which respective pixels of the liquid crystal display attain after one frame period after the respective pixels are driven to display a first frame, and the predicted attainment gradation being stored in a storage unit which stores the predicted attainment gradation, and the input gradation being gradation of a second frame which is displayed after the first frame; multiplying the first difference gradation by an enhancement coefficient; calculating enhanced gradation which is a sum of the first difference gradation multiplied by the enhancement, coefficient and the predicted attainment gradation; calculating second difference gradation which is a difference between the enhanced gradation and the predicted attainment gradation; multiplying the sec
    Type: Application
    Filed: June 26, 2008
    Publication date: April 30, 2009
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Masahiro Baba, Goh Itoh, Haruhiko Okumura
  • Publication number: 20090080776
    Abstract: An image data processing system includes an extracting unit extracting from an image signal corresponding to one image a signal corresponding to a pixel block including plural pixels in the image, a threshold calculating unit calculating a threshold for classifying the plural pixels into plural segments by linear calculation of display values of the plural pixels, a representative value calculating unit calculating plural representative values corresponding to the plural segments, a generating unit generating an arrangement pattern representing an arrangement of the representative values in the pixel block, and a transmitting unit transmitting the representative values and the arrangement pattern.
    Type: Application
    Filed: September 15, 2008
    Publication date: March 26, 2009
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventor: Haruhiko Okumura
  • Publication number: 20090058775
    Abstract: A liquid crystal drive apparatus includes: a storage unit storing an enhancement correction coefficient having (1/2n)×m below a decimal point where n is 3 or 4, and m is an integer which is at least 0 and less than 2n; a frame memory holding digital image information of a second frame located one frame before a first frame; a first computation unit computing a difference between digital image information of the first frame and digital image information of the second frame; a second computation unit computing enhancement image information for conducting enhancement display of an image on a liquid crystal panel on the basis of the difference and the enhancement correction coefficient; a third computation unit computing addition information by adding the digital image information of the second frame to the enhancement image information; and a drive signal generation unit generating a drive signal on the basis of the addition information to drive the liquid crystal panel.
    Type: Application
    Filed: August 13, 2008
    Publication date: March 5, 2009
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Aira HOTTA, Haruhiko OKUMURA, Hironori MINAMIZAKI, Hisashi SASAKI
  • Publication number: 20080240509
    Abstract: An image display device includes a storage unit storing a plurality of conversion tables respectively expressing relationship of a position on a display area and an enlargement ratio of an image, a judging unit judging entire motion of an image, a selection unit selecting any of the plurality of conversion tables based on a result of the judgment, and a conversion unit converting the image based on the conversion table selected by the selecting unit.
    Type: Application
    Filed: March 6, 2008
    Publication date: October 2, 2008
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Aira Hotta, Takashi Sasaki, Haruhiko Okumura
  • Patent number: 7405717
    Abstract: An image processing method for a liquid crystal display device includes: calculating first difference gradation, which is a difference between predicted attainment gradation and input gradation, the predicted attainment gradation being a predicted value of gradation which respective pixels of the liquid crystal display attain after one frame period after the respective pixels are driven to display a first frame, and the predicted attainment gradation being stored in a storage unit which stores the predicted attainment gradation, and the input gradation being gradation of a second frame which is displayed after the first frame; multiplying the first difference gradation by an enhancement coefficient; calculating enhanced gradation which is a sum of the first difference gradation multiplied by the enhancement coefficient and the predicted attainment gradation; calculating second difference gradation which is a difference between the enhanced gradation and the predicted attainment gradation; multiplying the seco
    Type: Grant
    Filed: March 10, 2006
    Date of Patent: July 29, 2008
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Masahiro Baba, Goh Itoh, Haruhiko Okumura
  • Patent number: 7349475
    Abstract: A motion vector detection method includes extracting a first block from the m-th picture, extracting second blocks having a large correlation with respect to the first block from a (m+n)-th picture ((m+n)>m-th), detecting first motion vectors between the first and second blocks, extracting a third block located in spatially the same position as that of the first block from a (m+i)-th picture ((m+n)>(m+i)>m-th), computing second motion vectors of (n?1)/n times the first motion vectors, extracting a fourth block corresponding to a movement position of the third block from the (m+n)-th picture according to the second motion vector, and selecting an optimum motion vector maximizing a correlation between the third and fourth blocks from the first motion vectors.
    Type: Grant
    Filed: March 10, 2003
    Date of Patent: March 25, 2008
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Goh Itoh, Nao Mishima, Haruhiko Okumura
  • Publication number: 20070279574
    Abstract: A liquid crystal display device comprising: a memory which receives an image signal, and which stores image data; and a correction data generation circuit that performs overdrive processing when the image data is a moving image, the correction data generation circuit having: a subtracter which performs subtraction processing after receiving previous frame image data outputted from the memory and current frame image data; a multiplier which performs multiplication processing by a predetermined multiplication factor after receiving a result of subtraction by the subtracter; and an adder which performs addition processing after receiving a result of multiplication by the multiplier and the current frame image data or the previous frame image data outputted from the memory.
    Type: Application
    Filed: May 29, 2007
    Publication date: December 6, 2007
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Hironori Minamizaki, Hisashi Sasaki, Haruhiko Okumura
  • Publication number: 20070269118
    Abstract: An image processing circuit has a color information converter configured to convert image data including a plurality of color information into luminance data and color difference data, an activity detector whether amount of activity predetermined according to differences between the luminance data in a plurality of pixels in each of pixel blocks and differences between the color difference data in the plurality of pixels exceeds a predetermined first threshold value for each pixel block including a plurality of pixels adjacent to each other, and a encoding unit configured to perform a first encoding process by generating m (m is an integer of three or larger) representative values corresponding to the luminance data and the color difference data in the plurality of pixels in the pixel block that the activity detector determines to exceed the first threshold value, and perform a second encoding process by generating n (n is an integer of two or more and the integer larger than m) representative values correspo
    Type: Application
    Filed: May 17, 2007
    Publication date: November 22, 2007
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Hisashi Sasaki, Hironori Minamizaki, Haruhiko Okumura
  • Patent number: 7295173
    Abstract: An image display method including dividing an original image for one frame period into a plurality of subfield images, arranging the subfield images in a direction of a time axis in an order of brightness of the subfield images, and displaying the arranged subfield images in the order of the brightness.
    Type: Grant
    Filed: February 17, 2005
    Date of Patent: November 13, 2007
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Goh Itoh, Masahiro Baba, Kazuki Taira, Haruhiko Okumura
  • Publication number: 20070236603
    Abstract: There is provided an image processing method capable of improving the picture quality. The image processing method comprises: incorporating input frame pictures to be displayed on a display device, on the basis of an input picture signal and an input synchronizing signal which is synchronized with the input picture signal; recording the incorporated input frame pictures in an input frame memory; and producing output frame pictures from input frame pictures, which have been recorded in the input frame memory, by producing an interpolated picture or inserting a black raster picture or thinning out the frame pictures, between input frame pictures corresponding to a picture information of the input frame picture to be displayed, on the basis of the picture information and the input synchronizing signal and an output synchronizing signal.
    Type: Application
    Filed: June 12, 2007
    Publication date: October 11, 2007
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Goh Itoh, Haruhiko Okumura
  • Publication number: 20070229557
    Abstract: An image display unit has a display region with a higher resolution than a number of pixels of an image. A base information storage unit stores viewing position information of a viewer and size information of the display region. A wide-angle transformation unit calculates a central area including a viewing center of the viewer of the display region using the viewing position information and the size information, divides the image into a first pixel area corresponding to the central area and a second pixel area corresponding to a peripheral area other than the central area, and transforms the first pixel area and the second pixel area by magnifying. A magnification ratio of the first pixel area is less than a magnification ratio of the second pixel area. The image display unit displays an image including the transformed first pixel area and the transformed second pixel area.
    Type: Application
    Filed: March 6, 2007
    Publication date: October 4, 2007
    Inventors: Haruhiko Okumura, Takashi Sasaki, Aira Hotta
  • Publication number: 20070230569
    Abstract: There is provided an image processing method capable of improving the picture quality. The image processing method comprises: incorporating input frame pictures to be displayed on a display device, on the basis of an input picture signal and an input synchronizing signal which is synchronized with the input picture signal; recording the incorporated input frame pictures in an input frame memory; and producing output frame pictures from input frame pictures, which have been recorded in the input frame memory, by producing an interpolated picture or inserting a black raster picture or thinning out the frame pictures, between input frame pictures corresponding to a picture information of the input frame picture to be displayed, on the basis of the picture information and the input synchronizing signal and an output synchronizing signal.
    Type: Application
    Filed: June 12, 2007
    Publication date: October 4, 2007
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Goh Itoh, Haruhiko Okumura
  • Patent number: 7256836
    Abstract: There is provided an image processing method capable of improving the picture quality. The image processing method comprises: incorporating input frame pictures to be displayed on a display device, on the basis of an input picture signal and an input synchronizing signal which is synchronized with the input picture signal; recording the incorporated input frame pictures in an input frame memory; and producing output frame pictures from input frame pictures, which have been recorded in the input frame memory, by producing an interpolated picture or inserting a black raster picture or thinning out the frame pictures, between input frame pictures corresponding to a picture information of the input frame picture to be displayed, on the basis of the picture information and the input synchronizing signal and an output synchronizing signal.
    Type: Grant
    Filed: October 22, 2004
    Date of Patent: August 14, 2007
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Goh Itoh, Haruhiko Okumura
  • Publication number: 20070165719
    Abstract: A motion vector detection method includes extracting a first block from the m-th picture, extracting second blocks having a large correlation with respect to the first block from a (m+n)-th picture ((m+n) >m-th), detecting first motion vectors between the first and second blocks, extracting a third block located in spatially the same position as that of the first block from a (m+i)-th picture ((m+n) >(m+i) >m-th), computing second motion vectors of (n?l)/n times the first motion vectors, extracting a fourth block corresponding to a movement position of the third block from the (m+n)-th picture according to the second motion vector, and selecting an optimum motion vector maximizing a correlation between the third and fourth blocks from the first motion vectors.
    Type: Application
    Filed: March 15, 2007
    Publication date: July 19, 2007
    Inventors: Goh Itoh, Nao Mishima, Haruhiko Okumura
  • Publication number: 20070153903
    Abstract: A motion vector detection method includes extracting a first block from the m-th picture, extracting second blocks having a large correlation with respect to the first block from a (m+n)-th picture ((m+n)>m-th), detecting first motion vectors between the first and second blocks, extracting a third block located in spatially the same position as that of the first block from a (m+i)-th picture ((m+n)>(m+i)>m-th), computing second motion vectors of (n?1)/n times the first motion vectors, extracting a fourth block corresponding to a movement position of the third block from the (m+n)-th picture according to the second motion vector, and selecting an optimum motion vector maximizing a correlation between the third and fourth blocks from the first motion vectors.
    Type: Application
    Filed: March 15, 2007
    Publication date: July 5, 2007
    Inventors: Goh Itoh, Nao Mishima, Haruhiko Okumura
  • Publication number: 20070153904
    Abstract: A motion vector detection method includes extracting a first block from the m-th picture, extracting second blocks having a large correlation with respect to the first block from a (m+n)-th picture ((m+n)>m-th), detecting first motion vectors between the first and second blocks, extracting a third block located in spatially the same position as that of the first block from a (m+i)-th picture ((m+n)>(m+i)>m-th), computing second motion vectors of (n?1)/n times the first motion vectors, extracting a fourth block corresponding to a movement position of the third block from the (m+n)-th picture according to the second motion vector, and selecting an optimum motion vector maximizing a correlation between the third and fourth blocks from the first motion vectors.
    Type: Application
    Filed: March 15, 2007
    Publication date: July 5, 2007
    Inventors: Goh Itoh, Nao Mishima, Haruhiko Okumura
  • Publication number: 20070046612
    Abstract: A liquid crystal display controller includes a circuit which generates a signal for driving a signal line with the polarity of the signal controlled by a control signal; an inductance element into which current flows in synchronization with the control signal; and a switching unit which connects selectively one of the inductance element and the circuit to the signal line. The signal line of a liquid crystal display device is driven by the inductance element, whereby the power consumption is reduced.
    Type: Application
    Filed: April 7, 2006
    Publication date: March 1, 2007
    Inventors: Haruhiko Okumura, Tetsure Itakura
  • Patent number: 7184008
    Abstract: A liquid crystal displaying method includes: multiplying, a difference value of luminance information and a difference value of color-difference information each by an emphasis coefficient ? (? is a positive real number); adding the luminance information in which the input image information has been delayed for one frame period and the color-difference information in which the input image information has been delayed for one frame period to the difference value of the luminance information multiplied by the emphasis coefficient ? and the difference value of the color-difference information multiplied by the emphasis coefficient ?, respectively, to obtain emphasized image information. The difference value of the luminance information is the luminance information of the input image information having the luminance information and the color-difference information subtracted from the luminance information in which the input image information has been delayed for one frame period.
    Type: Grant
    Filed: November 16, 2005
    Date of Patent: February 27, 2007
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Masahiro Baba, Haruhiko Okumura