Patents by Inventor Takuma Yanagisawa

Takuma Yanagisawa 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).

  • Publication number: 20200374467
    Abstract: A control apparatus includes at least one processor configured to perform operations as a detection unit configured to detect a specific area based on a signal imaged by an image sensor configured to provide a first imaging operation and a second imaging operation, and a selection unit configured to select an imaging timing of the second imaging operation based on the first imaging operation of the image sensor. The detection unit detects the specific area using the signal imaged at the imaging timing selected by the selection unit.
    Type: Application
    Filed: May 21, 2020
    Publication date: November 26, 2020
    Inventors: Jun Kameda, Takuma Yanagisawa
  • Publication number: 20200363197
    Abstract: An optical device comprises: a line sensor having a plurality of light reception elements that receive incident light including reflection light resulting from laser light having been emitted from a light source and reflected by an object, and including ambient light; a diffraction grating that guides the incident light to the plurality of light reception elements by diffracting the incident light to a direction depending on the wavelength; and a control unit that detects the reflection light on the basis of the light reception amounts of the light reception elements. The diffraction grating is configured to guide, to one of the plurality of light reception elements, a wavelength within a predetermined range that includes the wavelength of the laser light emitted from the light source.
    Type: Application
    Filed: July 10, 2018
    Publication date: November 19, 2020
    Applicant: Pioneer Corporation
    Inventors: Makoto SATO, Takanori OCHIAI, Takuma YANAGISAWA, Masakazu OGASAWARA, Ryo IZUTA
  • Publication number: 20200363509
    Abstract: An optical device comprises a diffraction grating that guides a laser light emitted from a light source to a direction having an angle depending on the wavelength, and guides a reflection light resulting from the guided laser light having been reflected by an object and ambient light to respective directions in angles depending on the wavelengths of these lights. The optical device further comprises a light reception element that receives the light guided by the diffraction grating. The reflection light of the laser light is incident on the diffraction grating at the same angle as the angle at which the laser light has been guided by the diffraction grating, and is guided by the diffraction grating at the same angle as the angle at which the laser light has been incident on the diffraction grating.
    Type: Application
    Filed: July 10, 2018
    Publication date: November 19, 2020
    Applicant: Pioneer Corporation
    Inventors: Makoto SATO, Takanori OCHIAI, Takuma YANAGISAWA, Masakazu OGASAWARA, Ryo IZUTA
  • Patent number: 10812715
    Abstract: An imaging apparatus includes a first calculation unit configured to calculate angular velocity of an object to the imaging apparatus, based on a detection result of a first detection unit that detects a motion vector of the object based on temporally-continuous images obtained by an image sensor and a detection result of a second detection unit that detects motion of the imaging apparatus, a second calculation unit configured to calculate angular acceleration of the object to the imaging apparatus, based on a plurality of angular velocities calculated by the first calculation unit, and a correction unit configured to move a correction component based on the angular velocity of the object to the imaging apparatus during exposure by the image sensor, and to correct image blur of the object.
    Type: Grant
    Filed: June 21, 2018
    Date of Patent: October 20, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shinya Ishita, Takuma Yanagisawa
  • Publication number: 20200241117
    Abstract: A ranging device comprising a light source unit that emits a pulsed light; an optical scanning unit that scans a predetermined region with the pulsed light and has an intersection point where a path of the pulsed light intersects when viewing a virtual surface inside the predetermined region; a ranging unit that receives a reflected light from an object irradiated with the pulsed light to measure a distance to the object; and a control unit that controls an emission of the pulsed light to the intersection point based on a predetermined condition on the reflected light.
    Type: Application
    Filed: September 21, 2018
    Publication date: July 30, 2020
    Inventors: Takanori OCHIAI, Takehisa OKUYAMA, Takuma YANAGISAWA, Yoshiyuki OKUDA
  • Publication number: 20200182980
    Abstract: Provided is an optical device capable of suppressing variations in the range for scanning light. This optical device comprises: a light source that emits a laser beam; a MEMS mirror that scans the laser beam toward a predetermined range; and a diffraction grating that guides the laser beam to the MEMS mirror by guiding the laser beam in a direction corresponding to the wavelength thereof. The optical device also comprises an MEMS control unit that performs control such that, by employing a change in the optical path of the laser beam caused through the diffraction grating by a change in the wavelength of the laser beam, variations in the scanning range of the laser beam by the MEMS mirror are suppressed.
    Type: Application
    Filed: August 1, 2018
    Publication date: June 11, 2020
    Inventors: Makoto SATO, Takanori OCHIAI, Takuma YANAGISAWA, Masakazu OGASAWARA, Ryo IZUTA
  • Publication number: 20180376066
    Abstract: An imaging apparatus includes a first calculation unit configured to calculate angular velocity of an object to the imaging apparatus, based on a detection result of a first detection unit that detects a motion vector of the object based on temporally-continuous images obtained by an image sensor and a detection result of a second detection unit that detects motion of the imaging apparatus, a second calculation unit configured to calculate angular acceleration of the object to the imaging apparatus, based on a plurality of angular velocities calculated by the first calculation unit, and a correction unit configured to move a correction component based on the angular velocity of the object to the imaging apparatus during exposure by the image sensor, and to correct image blur of the object.
    Type: Application
    Filed: June 21, 2018
    Publication date: December 27, 2018
    Inventors: Shinya Ishita, Takuma Yanagisawa
  • Patent number: 10122930
    Abstract: A display control apparatus acquires focusing state information indicating a focusing state of a specific region having a different height-width proportion in a captured image, performs control so as to display, together with the captured image, a first display element indicating the specific region and a second display element indicating the focusing state on a display unit, detects an attitude of the display control apparatus, and performs control so as to rotate and display the second display element without rotating the first display element if the attitude of the display control apparatus has been changed from a first attitude to a second attitude by 90 degrees.
    Type: Grant
    Filed: January 30, 2017
    Date of Patent: November 6, 2018
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Takuma Yanagisawa
  • Patent number: 9891433
    Abstract: The virtual image generation device which visualizes images formed by an image forming unit as virtual images includes: a first optical element and a second optical element arranged opposite to each other along a travelling direction of an image light corresponding to the images. The first optical element and the second optical element have a characteristic of reflecting the light having a wavelength corresponding to the image light in accordance with an incident angle of the light and transmitting the light having the wavelength other than the wavelength corresponding to the image light, and give a predetermined optical effect only to the image light.
    Type: Grant
    Filed: March 27, 2013
    Date of Patent: February 13, 2018
    Assignee: PIONEER CORPORATION
    Inventor: Takuma Yanagisawa
  • Publication number: 20170223275
    Abstract: A display control apparatus acquires focusing state information indicating a focusing state of a specific region having a different height-width proportion in a captured image, performs control so as to display, together with the captured image, a first display element indicating the specific region and a second display element indicating the focusing state on a display unit, detects an attitude of the display control apparatus, and performs control so as to rotate and display the second display element without rotating the first display element if the attitude of the display control apparatus has been changed from a first attitude to a second attitude by 90 degrees.
    Type: Application
    Filed: January 30, 2017
    Publication date: August 3, 2017
    Inventor: Takuma Yanagisawa
  • Publication number: 20160004077
    Abstract: The virtual image generation device which visualizes images formed by an image forming unit as virtual images includes: a first optical element and a second optical element arranged opposite to each other along a travelling direction of an image light corresponding to the images. The first optical element and the second optical element have a characteristic of reflecting the light having a wavelength corresponding to the image light in accordance with an incident angle of the light and transmitting the light having the wavelength other than the wavelength corresponding to the image light, and give a predetermined optical effect only to the image light.
    Type: Application
    Filed: March 27, 2013
    Publication date: January 7, 2016
    Inventor: Takuma YANAGISAWA
  • Publication number: 20140177017
    Abstract: The image display device includes an output unit which outputs an image information light including image information; and a hologram element on which the image information light is incident, and projects the image information light via the hologram element on a retina to make a user visually recognize an image. The hologram element includes a first hologram area and a second hologram area. A first image projected on the retina by a first image information light of the image information light via the first hologram area and a second image projected on the retina by a second image information light of the image information light via the second hologram area are different images.
    Type: Application
    Filed: August 31, 2011
    Publication date: June 26, 2014
    Applicant: PIONEER CORPORATION
    Inventors: Yoshihisa Kubota, Takuma Yanagisawa
  • Patent number: 8475902
    Abstract: A multilayer optical recording medium in which, as a recording layer is located farther from a surface of incidence of a light beam for reading, the amount of light that reaches the surface of incidence after being reflected off the recording layer is smaller.
    Type: Grant
    Filed: July 30, 2008
    Date of Patent: July 2, 2013
    Assignee: Pioneer Corporation
    Inventors: Ayumi Mitsumori, Takuma Yanagisawa, Takanobu Higuchi
  • Patent number: 8238220
    Abstract: A pickup device comprising an irradiation optical system including an objective lens to focus a ray bundle on a track of a recording surface of an optical recording medium to form a light spot, and a detection optical system including a photo detector to receive return light reflected from the light spot via the objective lens and perform photoelectric conversion and controls said objective lens in position according to electrical signals produced through operations on outputs of said photo detector.
    Type: Grant
    Filed: October 4, 2006
    Date of Patent: August 7, 2012
    Assignee: Pioneer Corporation
    Inventors: Makoto Sato, Masakazu Ogasawara, Takuma Yanagisawa
  • Publication number: 20110206889
    Abstract: A multilayer optical recording medium in which, as a recording layer is located farther from a surface of incidence of a light beam for reading, the amount of light that reaches the surface of incidence after being reflected off the recording layer is smaller.
    Type: Application
    Filed: July 30, 2008
    Publication date: August 25, 2011
    Applicant: PIONEER CORPORATION
    Inventors: Ayumi Mitsumori, Takuma Yanagisawa, Takanobu Higuchi
  • Patent number: 8004951
    Abstract: A pickup device includes an irradiation optical system including an object lens for focusing light flux on a track of a recording surface of an optical recording media having a plurality of recording layers stacked while a spacer layer is interposed between the recording layers to form a spot and a detection optical system including an photo detector having a plurality of light receiving parts for receiving returning light reflected from the spot through the object lens to perform photoelectric conversion. The pickup device controls a position of the object leans according to an electrical signal calculated from outputs of the light receiving parts.
    Type: Grant
    Filed: July 13, 2007
    Date of Patent: August 23, 2011
    Assignee: Pioneer Corporation
    Inventors: Masakazu Ogasawara, Takuma Yanagisawa, Katsuhiro Koike
  • Patent number: 7969836
    Abstract: An optical pickup apparatus reads an information signal recorded on a recording surface of an optical disk along a track by projecting a light beam. Said optical pickup apparatus has: an objective lens for converging said light beam onto said recording surface; an objective lens moving device for moving said objective lens in a radial direction of said optical disk; and a divisional photosensing device for receiving return light reflected by said optical disk, in a plurality of divided regions.
    Type: Grant
    Filed: January 5, 2007
    Date of Patent: June 28, 2011
    Assignee: Pioneer Corporation
    Inventors: Takuma Yanagisawa, Masakazu Ogasawara, Makoto Sato
  • Publication number: 20110149711
    Abstract: A method for compensating the coma aberration in a pickup of a recording and reproducing device that records or reproduces data on or from an optical disc using the pickup is provided. The method includes a first coma aberration compensating step to compensate coma aberration in a body of an optical system including an objective lens for emitting a light beam to an optical disc including a plurality of recording layers and a second coma aberration compensating step to compensate coma aberration caused by relative inclination of the optical system with respect to the optical disc.
    Type: Application
    Filed: July 15, 2008
    Publication date: June 23, 2011
    Applicant: Pioneer Corporation
    Inventor: Takuma Yanagisawa
  • Publication number: 20110110208
    Abstract: A method for compensating the coma aberration in a pickup of a recording and reproducing device that records or reproduces data on or from an optical disc using the pickup is provided. The method includes a first coma aberration compensating step to compensate coma aberration in a body of an optical system including an objective lens for emitting a light beam to an optical disc including a plurality of recording layers and a second coma aberration compensating step to compensate coma aberration caused by relative inclination of the optical system with respect to the optical disc.
    Type: Application
    Filed: January 14, 2011
    Publication date: May 12, 2011
    Applicant: Pioneer Corporation
    Inventor: Takuma YANAGISAWA
  • Patent number: 7907200
    Abstract: An image display system according to the present invention includes a camera that shoots a background, a monitor that displays a shot background image, and an optical lens arranged on a display surface of the monitor. An imaginary image, obtained due to presence of the optical lens, of the monitor image is made to substantially match with a background surface, so that observers viewing the background through the monitor can recognize that the monitor image and the background look continuous. As a result, the image display system and the image display method that can cause the observers viewing the background through the monitor to recognize that the monitor image and the background look continuous are provided.
    Type: Grant
    Filed: August 25, 2005
    Date of Patent: March 15, 2011
    Assignee: Pioneer Corporation
    Inventor: Takuma Yanagisawa