Patents by Inventor Aira Hotta

Aira Hotta 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: 8576142
    Abstract: One embodiment provides a display device, including: a luminous flux generator which generates luminous flux including image information; a reflector plate which reflects the luminous flux generated by the luminous flux generator toward one eye of a viewer; a head detector which detects a head of the viewer by using at least two pairs of distance sensors; a controller which controls a position of the reflector plate based on an output from the head detector; and a driver which drives the reflector plate based on an output from the controller.
    Type: Grant
    Filed: March 14, 2012
    Date of Patent: November 5, 2013
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Akihisa Moriya, Hiroaki Nakamura, Takashi Sasaki, Aira Hotta, Haruhiko Okumura
  • Publication number: 20130257689
    Abstract: According to one embodiment, a display device includes an image projection unit, a diffusion element, a concave mirror element of a Fresnel type, an optical unit, and a mounting unit. The image projection unit emits an image light including an image. The diffusion element is diffusible to a light. The optical unit includes first and second optical layers, and an intermediate layer. The first optical layer has first and second major surfaces. The second major surface has a protrusion and convexities. The second optical layer has third and fourth major surfaces. The third major surface has a recess and concavities. The intermediate layer is provided between the second and third major surfaces. The mounting unit holds the image projection unit, the diffusion element, the concave mirror element, and the optical unit and determines a relative positional relationship between the optical unit and an eye of a viewer.
    Type: Application
    Filed: February 14, 2013
    Publication date: October 3, 2013
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Aira Hotta, Minoru Inomoto, Haruhiko Okumura
  • Publication number: 20130181982
    Abstract: According to one embodiment, a display apparatus includes an image projection unit, an information acquisition unit and a data supply unit. The image projection unit projects a light flux including an image toward a projection layer which is reflective and transmissive. The information acquisition unit acquires information relating to a position of a three-dimensional object superimposing portion of three-dimensional objects positioned at a road. The road extends from a proximal region of the external environment proximal to the projection layer toward a distal region of the external environment distal to the projection layer. The three-dimensional object superimposing portion is higher than a ground surface and viewable via the projection layer. The data supply unit supplies data relating to the image including a display object to the image projection unit based on the information. The display object is displayed along the three-dimensional object superimposing portion.
    Type: Application
    Filed: December 14, 2012
    Publication date: July 18, 2013
    Inventors: Tsuyoshi Tasaki, Aira Hotta, Akihisa Moriya, Takashi Sasaki, Haruhiko Okumura
  • Patent number: 8451111
    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: Grant
    Filed: February 27, 2009
    Date of Patent: May 28, 2013
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Takashi Sasaki, Aira Hotta, Haruhiko Okumura
  • Publication number: 20130077175
    Abstract: According to one embodiment, a display device includes an image projection unit, an optical unit and a mounting unit. The image projection unit emits an image light. The optical unit includes a first optical layer having first and second major surfaces, a second optical layer having third and fourth major surfaces and an intermediate layer provided between the second and third major surfaces. At least a portion of the image light travelling from the first major surface toward the second major surface is reflected by the intermediate layer. At least a portion of a background light travelling from the fourth major surface toward the third major surface is transmitted by the intermediate layer. The first major surface or the fourth major surface is a curved surface. The mounting unit is linked to the image projection unit and the optical unit.
    Type: Application
    Filed: June 25, 2012
    Publication date: March 28, 2013
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Aira Hotta, Shigeru Shimakawa, Haruhiko Okumura, Akihisa Moriya, Takashi Sasaki
  • Publication number: 20120242694
    Abstract: According to one embodiment, a monocular head mounted display comprising an information acquisition section, an image data generation section, and an image display section. The information acquisition section acquires solid body position information on a position of a solid body located on ground around a user, and indication position information on an indication position for the user. The image data generation section generates image data including an information object to provide provision information to the user. The image display section displays an image based on the image data on one eye of the user in superimposition on a real scene. The image data generation section generates the image data so as to move the information object in the image so that the information object is superimposed on the indication position after placing the information object in the image so that the information object is superimposed on the solid body.
    Type: Application
    Filed: September 21, 2011
    Publication date: September 27, 2012
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Aira Hotta, Tsuyoshi Tasaki, Masahiro Sekine, Takashi Sasaki, Haruhiko Okumura, Akihisa Moriya, Akira Kinno
  • Patent number: 8262232
    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: Grant
    Filed: September 16, 2009
    Date of Patent: September 11, 2012
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Kazuo Horiuchi, Naotada Okada, Haruhiko Okumura, Takashi Sasaki, Aira Hotta
  • Publication number: 20120169591
    Abstract: One embodiment provides a display device, including: a luminous flux generator which generates luminous flux including image information; a reflector plate which reflects the luminous flux generated by the luminous flux generator toward one eye of a viewer; a head detector which detects a head of the viewer by using at least two pairs of distance sensors; a controller which controls a position of the reflector plate based on an output from the head detector; and a driver which drives the reflector plate based on an output from the controller.
    Type: Application
    Filed: March 14, 2012
    Publication date: July 5, 2012
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Akihisa Moriya, Hiroaki Nakamura, Takashi Sasaki, Aira Hotta, Haruhiko Okumura
  • Publication number: 20120170130
    Abstract: According to one embodiment, a display device includes an image projection unit. The image projection unit is configured to project a light flux toward one eye of a human viewer by using a projection plate to reflect the light flux. The light flux includes an image including a display object having a vanishing point. The projection plate is reflective and transmissive. The image projection unit is configured to dispose the vanishing point of the display object at a position different from a position of a vanishing point of a background image viewed by the human viewer through the projection plate.
    Type: Application
    Filed: March 14, 2012
    Publication date: July 5, 2012
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Takashi Sasaki, Aira Hotta, Akihisa Moriya, Haruhiko Okumura, Miwako Doi
  • Patent number: 8212662
    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: Grant
    Filed: September 28, 2009
    Date of Patent: July 3, 2012
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Takashi Sasaki, Aira Hotta, Haruhiko Okumura, Masatoshi Ogawa, Osamu Nagahara, Tsuyoshi Hagiwara, Kazuo Horiuchi, Naotada Okada
  • 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: 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
  • 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
  • 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: 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
  • 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
  • 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