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: 7777766
    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: Grant
    Filed: March 6, 2007
    Date of Patent: August 17, 2010
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Haruhiko Okumura, Takashi Sasaki, Aira Hotta
  • Publication number: 20100164845
    Abstract: A differential data array group, which have at least a plurality of pairs of a differential data to transmit a serial signal, includes difference absolute value data having a plurality of bits to represent an absolute value obtained by converting gray scale level data of red, green and blue to binary number data, and sign data having at least one bit to represent a sign of the gray scale level data. With respect to one pair of the differential data, gray scale level data corresponding to one pixel are arranged in an ascending order or a descending order. With respect to another pair of the differential data, the sign data corresponding to one pixel are arranged into a former half or a latter half of a time period corresponding to one pixel. Data of a highest order bit of the difference absolute value data corresponding to one pixel are arranged into the latter half or the former half of the time period corresponding to one pixel.
    Type: Application
    Filed: May 19, 2008
    Publication date: July 1, 2010
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Ayako Takagi, Masahiro Baba, Haruhiko Okumura
  • Publication number: 20100164702
    Abstract: An automotive display system includes an image projection unit and an angle information acquisition unit. The image projection unit projects a light flux including an image including a display object toward one eye of an image viewer. The angle information acquisition unit acquires at least one of vehicle angle information and external environment angle information. The vehicle angle information relates to an angle of at least one of an attitude and a heading of a vehicle carrying the image viewer. The external environment angle information relates to an angle of a background object at a target position of the display object in a background of an external environment of the vehicle. The image projection unit changes an angle of the display object in the image based on at least one of the vehicle angle information and the external environment angle information acquired by the angle information acquisition unit.
    Type: Application
    Filed: September 28, 2009
    Publication date: July 1, 2010
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Takashi Sasaki, Aira Hotta, Haruhiko Okumura, Masatoshi Ogawa, Osamu Nagahara, Tsuyoshi Hagiwara, Kazuo Horiuchi, Naotada Okada
  • Publication number: 20100157430
    Abstract: An automotive display system includes a frontward information acquisition unit, a position detection unit and an image projection unit. The frontward information acquisition unit acquires frontward information. The frontward information includes information relating to a frontward path of a vehicle. The position detection unit detects a position of one eye of an image viewer riding in the vehicle. The image projection unit generates a first virtual image at a corresponding position in scenery of the frontward path based on the frontward information acquired by the frontward information acquisition unit and projects a light flux including an image including the generated first virtual image toward the one eye of the image viewer based on the detected position of the one eye. The first virtual image has a size corresponding to at least one of a vehicle width and a vehicle height.
    Type: Application
    Filed: September 28, 2009
    Publication date: June 24, 2010
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Aira Hotta, Takashi Sasaki, Haruhiko Okumura, Masatoshi Ogawa, Osamu Nagahara, Tsuyoshi Hagiwara, Kazuo Horiuchi, Naotada Okada
  • Patent number: 7719507
    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: Grant
    Filed: April 7, 2006
    Date of Patent: May 18, 2010
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Haruhiko Okumura, Tetsuro Itakura
  • Publication number: 20100073636
    Abstract: A display apparatus for vehicle includes: an image projector configured to project a light flux including an image having a display object toward a one eye of an image viewer; and a position detector configured to detect the one eye of the image viewer. The image projector changes at least one of a position, a shape and a size of the display object in the image on the basis of a position of the one eye detected by the position detector.
    Type: Application
    Filed: September 17, 2009
    Publication date: March 25, 2010
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Takashi Sasaki, Aira Hotta, Haruhiko Okumura
  • Publication number: 20100073773
    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: Application
    Filed: March 27, 2009
    Publication date: March 25, 2010
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Aira Hotta, Takashi Sasaki, Haruhiko Okumura
  • Publication number: 20100073579
    Abstract: There is provided an optical member comprising: a first optical layer having: a first main face formed with a concave section having a concave curved surface, and a plurality of convex ridges having concave curved surfaces provided in concentric circular fashion around said concave section; and a second main face formed with: a convex section having a convex curved surface that is provided facing the concave section and constituting a second main face facing the first main face; and a plurality of convex ridges having convex curved surfaces provided facing the plurality of convex ridges having the concave curved surface, provided in concentric circular fashion around the convex section; and a second optical layer provided on the first main face of the first optical layer; and a third optical layer provided on the second main face of the first optical layer; wherein the refractive index of the first optical layer is higher than the refractive index of the second optical layer and is higher than the refractive
    Type: Application
    Filed: September 21, 2009
    Publication date: March 25, 2010
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Naotada Okada, Kazuo Horiuchi, Haruhiko Okumura, Takashi Sasaki
  • Publication number: 20100066925
    Abstract: According to one embodiment of a head up display according to an embodiment of the present invention includes a display information generating module which generates information that should be projected, a combiner which guides the information that is generated by the display information generating module and should be displayed to a predetermined position, a light adjustment control module which changes a transmitted light amount of the combiner based on brightness of a background and front image detecting module which detects brightness of the background to set the transmitted light amount of the combiner by using the light adjustment control module.
    Type: Application
    Filed: September 15, 2009
    Publication date: March 18, 2010
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Osamu Nagahara, Takato Katagiri, Haruhiko Okumura, Takashi Sasaki, Aira Hotta, Kazuo Horiuchi, Masatoshi Ogawa, Tsuyoshi Hagiwara, Toshiaki Matsubayashi
  • Publication number: 20100066832
    Abstract: According to one embodiment of a head up display according to the present invention can improve visibility by changing a position of information projected onto a combiner based on information captured by a front camera and a driver camera.
    Type: Application
    Filed: September 15, 2009
    Publication date: March 18, 2010
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Osamu Nagahara, Takato Katagiri, Haruhiko Okumura, Takashi Sasaki, Aira Hotta, Kazuo Horiuchi, Masatoshi Ogawa, Tsuyoshi Hagiwara, Toshiaki Matsubayashi
  • Publication number: 20100066984
    Abstract: A display device is provided that includes: a projection unit emitting a light flux including image information; and a divergence angle controlling unit controlling a divergence angle of the light flux emitted from the projection unit to not more than a prescribed angle. The divergence angle controlling unit includes a transmission unit transmitting the light flux emitted from the projection unit and a light shielding unit shielding part of the light flux, and the part of the light flux is shielded by the light shielding unit so that the divergence angle of the light flux is controlled to not more than a prescribed angle.
    Type: Application
    Filed: September 16, 2009
    Publication date: March 18, 2010
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Kazuo HORIUCHI, Naotada Okada, Haruhiko Okumura, Takashi Sasaki, Aira Hotta
  • Patent number: 7676528
    Abstract: An image data processing apparatus includes: a data dividing unit dividing arithmetic image data into arithmetic pixel data corresponding to a signal line of a display device; an adder adding first data and second data; and a data delaying unit delaying the added data, wherein the first data is the divided arithmetic pixel data from the data dividing unit, and the second data is the delayed added arithmetic pixel data from the data delaying unit.
    Type: Grant
    Filed: September 22, 2005
    Date of Patent: March 9, 2010
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Haruhiko Okumura, Tetsuro Itakura, Hironori Minamizaki
  • Publication number: 20090289935
    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: Application
    Filed: March 17, 2009
    Publication date: November 26, 2009
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Aira Hotta, Haruhiko Okumura, Hironori Minamizaki
  • Publication number: 20090244702
    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: Application
    Filed: March 19, 2009
    Publication date: October 1, 2009
    Inventors: Naotada OKADA, Kazuo HORIUCHI, Haruhiko OKUMURA, Takashi SASAKI
  • Publication number: 20090243963
    Abstract: An image display apparatus includes: an imaging device inputting sequentially information of an observer; a position calculation unit calculating positions of a single eye of the observer from the information sequentially; a difference calculation unit calculating a difference between the position of the single eye calculated at a present time and a previous time; a projection position determination unit determining a target value of a projection position of a light beam on the single eye from the difference; and a projector presenting an image to the observer by projecting the light beam to the projection position.
    Type: Application
    Filed: March 23, 2009
    Publication date: October 1, 2009
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Aira Hotta, Takashi Sasaki, Haruhiko Okumura
  • Publication number: 20090237803
    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: Application
    Filed: March 19, 2009
    Publication date: September 24, 2009
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Aira Hotta, Takashi Sasaki, Haruhiko Okumura
  • Publication number: 20090201225
    Abstract: A display apparatus includes a light-flux-generating section configured to generate a light flux containing image information; a light-flux-controlling section configured to control the light flux and making the light flux come toward a head of an observer, and an image-taking section configured to take an image of the observer. At least one of the light-flux-generating section and the light-flux-controlling section include a movable unit in which at least one of position and focus of the light flux can be adjusted with the observer watching the taken image by the image-taking section.
    Type: Application
    Filed: January 8, 2009
    Publication date: August 13, 2009
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Naotada OKADA, Kazuo Horiuchi, Haruhiko Okumura, Takashi Sasaki
  • Publication number: 20090185622
    Abstract: A motion vector detection method comprises extracting a first block including a plurality of pixels from a first frame of the image, detecting a second block from a plurality of blocks of a second frame of the image by block matching, the second block including the maximum number of pixels each indicating an absolute difference value not more than a first threshold with respect to each of the pixels of the first block, and computing a first motion vector between the first block and the second block.
    Type: Application
    Filed: March 24, 2009
    Publication date: July 23, 2009
    Inventors: Goh ITOH, Nao Mishima, Haruhiko Okumura
  • Patent number: 7561621
    Abstract: A motion vector detection method includes extracting a first block including a plurality of pixels from a first frame of the image, detecting a second block from a plurality of blocks of a second frame of the image by block matching, the second block including the maximum number of pixels each indicating an absolute difference value not more than a first threshold with respect to each of the pixels of the first block, and computing a first motion vector between the first block and the second block.
    Type: Grant
    Filed: September 10, 2003
    Date of Patent: July 14, 2009
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Goh Itoh, Nao Mishima, Haruhiko Okumura
  • Publication number: 20090153962
    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: Application
    Filed: November 26, 2008
    Publication date: June 18, 2009
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Naotada OKADA, Kazuo Horiuchi, Haruhiko Okumura, Takashi Sasaki