Patents by Inventor Ryuhi Okubo

Ryuhi Okubo 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: 20230255444
    Abstract: An imaging system includes: an optical system configured to form a subject image; a driver configured to drive the optical system; an imaging element configured to capture the subject image and generate image data; and a processor configured to control the imaging element and the driver. The imaging element includes: a first imaging portion configured to capture an image of a first light beam that travels through a first optical path in the optical system; a second imaging portion configured to capture an image of a second light beam that travels through a second optical path shorter than the first optical path; and plural phase difference pixels for phase difference autofocus, the plural phase difference pixels being arranged in at least one of the first imaging portion and the second imaging portion, the plural phase difference pixels being configured to output phase difference signals.
    Type: Application
    Filed: March 22, 2023
    Publication date: August 17, 2023
    Applicant: OLYMPUS CORPORATION
    Inventors: Ryuhi OKUBO, Makoto IKEDA, Satoru ADACHI, Nana AKAHANE
  • Publication number: 20220345608
    Abstract: A control device includes: a processor configured to obtain a first picture signal and a second picture signal, calculate first ranging information based on the first picture signal, calculate second ranging information based on the second picture signal, estimate a first subject distance corresponding to the first ranging information, estimate ranging information corresponding to a second focal position, perform arithmetic processing to determine degree of reliability of the first ranging information, and output a result of the arithmetic processing.
    Type: Application
    Filed: July 7, 2022
    Publication date: October 27, 2022
    Applicant: OLYMPUS CORPORATION
    Inventors: Makoto Ikeda, Ryuhi Okubo, Satoru Adachi, Nana Akahane
  • Patent number: 10970537
    Abstract: An image processing apparatus generates a left-eye viewpoint image and a right-eye viewpoint image, detects one or more pairs that are each a pair of a partial image of the left-eye viewpoint image and a partial image of the right-eye viewpoint image that are similar to each other, performs, for each of the one or more pairs, image adjustment processing for adjusting the three-dimensionality of one of or both of the partial images of the left-eye and right-eye viewpoint images, displays the left-eye viewpoint image or the left-eye viewpoint image after the image adjustment processing in a manner such that this image is capable of being observed with a left eye, and displays the right-eye viewpoint image or the right-eye viewpoint image after the image adjustment processing in a manner such that this image is capable of being observed with a right eye.
    Type: Grant
    Filed: August 5, 2019
    Date of Patent: April 6, 2021
    Assignee: OLYMPUS CORPORATION
    Inventors: Tetsuya Toyoda, Kazumi Ito, Masayuki Nakatsuka, Tatsuya Kino, Ryuhi Okubo, Shigeru Kato, Tetsuya Shirota, Kazuhiko Osa, Osamu Nonaka
  • Publication number: 20200050850
    Abstract: An image processing apparatus generates a left-eye viewpoint image and a right-eye viewpoint image, detects one or more pairs that are each a pair of a partial image of the left-eye viewpoint image and a partial image of the right-eye viewpoint image that are similar to each other, performs, for each of the one or more pairs, image adjustment processing for adjusting the three-dimensionality of one of or both of the partial images of the left-eye and right-eye viewpoint images, displays the left-eye viewpoint image or the left-eye viewpoint image after the image adjustment processing in a manner such that this image is capable of being observed with a left eye, and displays the right-eye viewpoint image or the right-eye viewpoint image after the image adjustment processing in a manner such that this image is capable of being observed with a right eye.
    Type: Application
    Filed: August 5, 2019
    Publication date: February 13, 2020
    Applicant: OLYMPUS CORPORATION
    Inventors: Tetsuya TOYODA, Kazumi ITO, Masayuki NAKATSUKA, Tatsuya KINO, Ryuhi OKUBO, Shigeru KATO, Tetsuya SHIROTA, Kazuhiko OSA, Osamu NONAKA
  • Patent number: 10148865
    Abstract: A focus detection apparatus, comprising, focus detection pixels that receive a pair of light fluxes resulting from pupil division of light flux, a memory that stores correction values in accordance with width of the imaging light flux in the pupil-division direction relating to a two-image interval value, and a controller having a focus detection section, a light flux width calculation section, and a defocus amount calculation section, wherein the light flux width calculation section calculates the width of the imaging light flux in the pupil-division direction, and the defocus amount calculation section calculates defocus amount of the photographing optical system based on the two-image interval value, wherein the focus detection section detects a first two-image interval value and corrects the first two-image interval value based on the correction values and the width of the imaging light flux in the pupil-division direction to obtain a second two-image interval value.
    Type: Grant
    Filed: June 3, 2017
    Date of Patent: December 4, 2018
    Assignee: Olympus Corporation
    Inventors: Ryuhi Okubo, Kazumi Ito
  • Patent number: 9866746
    Abstract: A photographing apparatus of the present invention, having a lens barrel including a photographing optical system for guiding photographing light flux and a camera body capable of being attached to and detached from the lens barrel, comprises an image sensor having pairs of focus detection pixels, a first memory for storing information relating to incident angle range of imaging light flux, a second memory, arranged in the body barrel, for storing information on light receiving sensitivity characteristic of the focus detection pixels, and a calculation controller for calculating information for focus adjustment control based on information that has been read out from the first memory and the second memory, wherein the information relating to incident angle range includes angular information of upper and lower ends of imaging light flux corresponding to image height.
    Type: Grant
    Filed: June 29, 2017
    Date of Patent: January 9, 2018
    Assignee: Olympus Corporation
    Inventors: Kazumi Ito, Ryuhi Okubo
  • Publication number: 20170374270
    Abstract: A focus detection apparatus, comprising, focus detection pixels that receive a pair of light fluxes resulting from pupil division of light flux, a memory that stores correction values in accordance with width of the imaging light flux in the pupil-division direction relating to a two-image interval value, and a controller having a focus detection section, a light flux width calculation section, and a defocus amount calculation section, wherein the light flux width calculation section calculates the width of the imaging light flux in the pupil-division direction, and the defocus amount calculation section calculates defocus amount of the photographing optical system based on the two-image interval value, wherein the focus detection section detects a first two-image interval value and corrects the first two-image interval value based on the correction values and the width of the imaging light flux in the pupil-division direction to obtain a second two-image interval value.
    Type: Application
    Filed: June 3, 2017
    Publication date: December 28, 2017
    Inventors: Ryuhi OKUBO, Kazumi ITO
  • Publication number: 20170302845
    Abstract: A photographing apparatus of the present invention, having a lens barrel including a photographing optical system for guiding photographing light flux and a camera body capable of being attached to and detached from the lens barrel, comprises an image sensor having pairs of focus detection pixels, a first memory for storing information relating to incident angle range of imaging light flux, a second memory, arranged in the body barrel, for storing information on light receiving sensitivity characteristic of the focus detection pixels, and a calculation controller for calculating information for focus adjustment control based on information that has been read out from the first memory and the second memory, wherein the information relating to incident angle range includes angular information of upper and lower ends of imaging light flux corresponding to image height.
    Type: Application
    Filed: June 29, 2017
    Publication date: October 19, 2017
    Inventors: Kazumi ITO, Ryuhi OKUBO
  • Patent number: 9729777
    Abstract: A photographing apparatus of the present invention, having a lens section including a photographing optical system for guiding photographing light flux and a body section capable of being attached to and detached from the lens section, comprises an image sensor having imaging pixels and pairs of focus detection pixels, a first memory for storing information relating to incident angle range of imaging light flux, a second memory, arranged in the body section, for storing information on light receiving sensitivity characteristic of the focus detection pixels, and a control amount calculate section for calculating information for focus adjustment control based on information that has been read out from the first memory and the second memory, wherein the information relating to incident angle range includes information relating to shape of a plurality of arcs based on openings of a plurality of lens groups contained in the photographing optical system.
    Type: Grant
    Filed: December 16, 2015
    Date of Patent: August 8, 2017
    Assignee: Olympus Corporation
    Inventors: Kazumi Ito, Ryuhi Okubo
  • Publication number: 20160182811
    Abstract: A photographing apparatus of the present invention, having a lens section including a photographing optical system for guiding photographing light flux and a body section capable of being attached to and detached from the lens section, comprises an image sensor having imaging pixels and pairs of focus detection pixels, a first memory for storing information relating to incident angle range of imaging light flux, a second memory, arranged in the body section, for storing information on light receiving sensitivity characteristic of the focus detection pixels, and a control amount calculate section for calculating information for focus adjustment control based on information that has been read out from the first memory and the second memory, wherein the information relating to incident angle range includes information relating to shape of a plurality of arcs based on openings of a plurality of lens groups contained in the photographing optical system.
    Type: Application
    Filed: December 16, 2015
    Publication date: June 23, 2016
    Inventors: Kazumi ITO, Ryuhi OKUBO
  • Patent number: 8810713
    Abstract: An image pickup apparatus includes: an image pickup device that includes a pixel used for focus detection, a plurality of the pixels being arranged in a matrix; a correction memory that stores correction information used for correcting a difference in amounts of received light that depend on pixel positions of the pixels used for focus detection; a correcting section that reads the correction information to correct a pixel value of the pixel used for focus detection; and a focus detecting section that detects a focal point by using the pixel value corrected by the correcting section. Focus accuracy is increased by correcting the pixel value for an AF pixel depending on the pixel position.
    Type: Grant
    Filed: July 10, 2012
    Date of Patent: August 19, 2014
    Assignees: Olympus Imaging Corp., Olympus Corporation
    Inventors: Keigo Matsuo, Hisashi Goto, Yoshikazu Ichikawa, Ryuhi Okubo, Hiroshi Takase, Toshio Takahashi, Daichi Murakami
  • Publication number: 20130016274
    Abstract: An image pickup apparatus includes: an image pickup device that includes a pixel used for focus detection, a plurality of the pixels being arranged in a matrix; a correction memory that stores correction information used for correcting a difference in amounts of received light that depend on pixel positions of the pixels used for focus detection; a correcting section that reads the correction information to correct a pixel value of the pixel used for focus detection; and a focus detecting section that detects a focal point by using the pixel value corrected by the correcting section. Focus accuracy is increased by correcting the pixel value for an AF pixel depending on the pixel position.
    Type: Application
    Filed: July 10, 2012
    Publication date: January 17, 2013
    Applicants: OLYMPUS CORPORATION, OLYMPUS IMAGING CORP.
    Inventors: Keigo Matsuo, Hisashi Goto, Yoshikazu Ichikawa, Ryuhi Okubo, Hiroshi Takase, Toshio Takahashi, Daichi Murakami