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: 8188993
    Abstract: A liquid crystal drive device includes: a frame memory retaining image information of a second frame immediately preceding a first frame; a first calculator calculating a first difference between image information of the first frame and the image information of the second frame; an edge enhancement processor performing edge enhancement processing of the first frame for each of pixels of the first frame and outputting edge enhancement image information; a selector selecting and outputting the edge enhancement image information or image information of the first frame; a second calculator calculating a second difference between an output of the selector and the image information of the second frame; an enhancement coefficient calculator multiplying an output of the second calculator by an enhancement correction coefficient; and a third calculator calculating sum information by adding together an output of the enhancement coefficient calculator and the image information of the second frame.
    Type: Grant
    Filed: March 17, 2009
    Date of Patent: May 29, 2012
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Aira Hotta, Haruhiko Okumura, Hironori Minamizaki
  • Patent number: 8165400
    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: Grant
    Filed: September 15, 2008
    Date of Patent: April 24, 2012
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Haruhiko Okumura
  • Patent number: 8159433
    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: Grant
    Filed: August 13, 2008
    Date of Patent: April 17, 2012
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Aira Hotta, Haruhiko Okumura, Hironori Minamizaki, Hisashi Sasaki
  • Patent number: 8155388
    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: Grant
    Filed: March 6, 2008
    Date of Patent: April 10, 2012
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Aira Hotta, Takashi Sasaki, Haruhiko Okumura
  • Patent number: 8144777
    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 15, 2007
    Date of Patent: March 27, 2012
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Goh Itoh, Nao Mishima, Haruhiko Okumura
  • Publication number: 20120008048
    Abstract: According to one embodiment, a display device includes an image data generating unit and a display unit. The image data generating unit generates image data on an image. The display unit presents a video including the image data to an image viewer on a moving body to superimpose the video on an actual outside scene. The image data includes a first display object and a second display object. The first display object includes a lower part object. The lower part object has a lower part, an upper right part and an upper left part. A length of the lower part along a normal direction is longer than lengths of the upper right and upper left parts. The second display object is disposed in the image with reference to a display position of the first display object. The second display object includes information on the moving body.
    Type: Application
    Filed: July 8, 2011
    Publication date: January 12, 2012
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Masahiro Sekine, Takashi Sasaki, Tsuyoshi Tasaki, Haruhiko Okumura, Noriko Odate, Shigeo Morimoto, Takahisa Yoneyama, Yugo Kuwabara
  • Patent number: 8081382
    Abstract: A reflective screen includes: a substrate having a first refractive index; and a periodic structure provided on a major surface of the substrate and including a periodic film which has a period ? and is made of a material having a second refractive index that is higher than the first refractive index. The period ? is not less than 400/(N+1) nm and not more than 680/(N?1) nm, where N is an equivalent refractive index of the periodic film.
    Type: Grant
    Filed: March 19, 2009
    Date of Patent: December 20, 2011
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Naotada Okada, Kazuo Horiuchi, Haruhiko Okumura, Takashi Sasaki
  • Publication number: 20110298693
    Abstract: According to one embodiment, a display apparatus includes a generation unit and a presentation unit. The generation unit is configured to generate a CG image in a CG space having a coordinate system corresponding to a scene viewed from a view point of an observer. The CG image represents a target to be perceived by the observer. The presentation unit is configured to present the CG image to at least one eye of the observer. The generation unit generates a plurality of CG images of the target advancing to a specific coordinate in the CG space and going back from the specific coordinate based on a velocity of the vehicle. The target is perceived by the observer so that the target is advancing from of the vehicle to a specific location corresponding to the specific coordinate in the scene and stops at the specific location for a specific time.
    Type: Application
    Filed: March 7, 2011
    Publication date: December 8, 2011
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Tsuyoshi Tasaki, Akihisa Moriya, Takashi Sasaki, Akira Kinno, Haruhiko Okumura, Shigeru Shimakawa
  • Patent number: 8031149
    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: Grant
    Filed: June 26, 2008
    Date of Patent: October 4, 2011
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Masahiro Baba, Goh Itoh, Haruhiko Okumura
  • Publication number: 20110228403
    Abstract: According to one embodiment, an optical element includes a first optical sheet having a first major surface. The first optical sheet includes a first Fresnel lens provided in the first major surface. An optical axis of the first Fresnel lens at the first major surface is disposed at a position different from a position of a center of an outline of the first major surface.
    Type: Application
    Filed: January 21, 2011
    Publication date: September 22, 2011
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Lisa MASUDA, Shigeru Shimakawa, Naotada Okada, Kazuo Horiuchi, Haruhiko Okumura, Takashi Sasaki, Hiromi Suzuki
  • Publication number: 20110216096
    Abstract: According to one embodiment, a display device includes a presentation unit, a setting unit and a control unit. The presentation unit is configured to produce a light flux including image information and to presenting the light flux to an eye of a human viewer. The setting unit is configured to receive luminance information to set a luminance of the light flux to be a first luminance, the first luminance being set by the human viewer. The control unit is configured to control the presentation unit to change the luminance of the light flux, the control unit controlling the presentation unit to make the luminance of the light flux to be a second luminance lower than the first luminance based on the luminance information received by the setting unit.
    Type: Application
    Filed: September 15, 2010
    Publication date: September 8, 2011
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Takashi Sasaki, Aira Hotta, Akihisa Moriya, Haruhiko Okumura
  • Publication number: 20110187844
    Abstract: To provide an image irradiation system and an image irradiation method which can make an image information in an outdoor side of a vehicle be recognized by a driver precisely without widely moving a view point of the driver. An image irradiation system includes a first photographing module photographing a driver of a vehicle, a position calculation module calculating a single eye position of the driver from an image photographed by the first photographing module, an image information generating module creating an outdoor image information of the vehicle, and an irradiation module irradiating the outdoor image information to the single eye position calculated by the position calculation module.
    Type: Application
    Filed: September 2, 2009
    Publication date: August 4, 2011
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Masatoshi Ogawa, Hitoshi Inaba, Haruhiko Okumura, Takashi Sasaki, Naotada Okada, Aira Hotta, Kazuo Horiuchi, Tsuyoshi Hagiwara, Osamu Nagahara, Toshiaki Matsubayashi
  • Patent number: 7952808
    Abstract: A display system for vehicle includes an outside information-obtaining section configured to obtain outside information of a moving object; a position-detecting section configured to detect a position of one eye of an image viewer getting on the moving object; and an image-projecting section. The image-projecting section is configured to obtain a position of a target in the outside information obtained by the outside information-obtaining section, to generate a display object on the basis of the obtained position of the target, and to project a light flux including an image having the generated display object toward the one eye of the image viewer on the basis of the detected position of the one eye.
    Type: Grant
    Filed: March 27, 2009
    Date of Patent: May 31, 2011
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Aira Hotta, Takashi Sasaki, Haruhiko Okumura
  • Patent number: 7903887
    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: Grant
    Filed: May 17, 2007
    Date of Patent: March 8, 2011
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Hisashi Sasaki, Hironori Minamizaki, Haruhiko Okumura
  • Publication number: 20110001639
    Abstract: An image display apparatus includes: an image generation unit generating a plurality of images with different figure sizes so that perceived positions of the plurality of images are sequentially located in a direction away from an actual position; a reflection member provided in front of the observer; and a projector projecting a light beam to form, the plurality of images onto a single eye of the observer through the reflection member so that the plurality of images is superimposed on a background observed through the refection member.
    Type: Application
    Filed: February 27, 2009
    Publication date: January 6, 2011
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Takashi Sasaki, Aira Hotta, Haruhiko Okumura
  • Patent number: 7839574
    Abstract: A head-up display optical film includes: a first optical layer configured to convert the polarization plane of incident light by 90 degrees; a second optical layer configured to convert the polarization plane of incident light by 90 degrees; and an intermediate optical layer sandwiched between the first optical layer and the second optical layer and having a refractive index that is different from the refractive index of the first optical layer and from the refractive index of the second optical layer.
    Type: Grant
    Filed: November 26, 2008
    Date of Patent: November 23, 2010
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Naotada Okada, Kazuo Horiuchi, Haruhiko Okumura, Takashi Sasaki
  • Patent number: 7830607
    Abstract: A display device includes: an image projection section configured to project a light flux including an image toward a head of a viewer; an imaging section configured to image a picture of the viewer; a control section configured to control a projection area and a projection position of the light flux by controlling the image projection section on the basis of the picture; and a target eye detection section configured to detect a one-eye served as a target of the projection position of both eyes of the viewer on the basis of the picture.
    Type: Grant
    Filed: March 19, 2009
    Date of Patent: November 9, 2010
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Aira Hotta, Takashi Sasaki, Haruhiko Okumura
  • Patent number: 7796192
    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: June 12, 2007
    Date of Patent: September 14, 2010
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Goh Itoh, Haruhiko Okumura
  • Patent number: 7787049
    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: June 12, 2007
    Date of Patent: August 31, 2010
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Goh Itoh, Haruhiko Okumura
  • Publication number: 20100214635
    Abstract: A display device, generating light flux containing image information and making the light flux incident to one-eye of an image viewer by controlling an angle of divergence of the light flux is provided. The device includes a first lens, a second lens and an angle of divergence control device provided between the first lens and the second lens, the angle of divergence control device being configured to control the angle of divergence of the light flux.
    Type: Application
    Filed: March 22, 2010
    Publication date: August 26, 2010
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Takashi Sasaki, Aira Hotta, Haruhiko Okumura, Naotada Okada, Kazuo Horiuchi