Patents by Inventor Kenzo Hisa

Kenzo Hisa 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: 10863101
    Abstract: An image capturing apparatus comprises an image sensor in which a plurality of pixels are arranged two-dimensionally, wherein each of the pixels have a photoelectric conversion portion, a holding portion that holds a charge obtained by the photoelectric conversion portion, an amplification portion that outputs a signal based on a charge outputted from the holding portion, a first transfer switch that transfers the charge from the photoelectric conversion portion to the holding portion, and a second transfer switch that transfers the charge from the holding portion to the amplification portion; and a controller that controls a number of times that the first transfer switch is turned on in relation to the second transfer switch being turned on one time.
    Type: Grant
    Filed: July 28, 2017
    Date of Patent: December 8, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takenori Kobuse, Kenzo Hisa
  • Patent number: 10855928
    Abstract: An image capture apparatus that allows the user to easily change the brightness of an image that is shot while using automatic exposure control is disclosed. The image capture apparatus comprises a setting unit configured to be able to set a reference value of proper exposure. The image capture apparatus determines exposure conditions based on the luminance information and the reference value, wherein the reference value is a value used as a reference exposure value from which exposure conditions are varied in an exposure compensation.
    Type: Grant
    Filed: January 22, 2019
    Date of Patent: December 1, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Keisuke Matsuno, Takeshi Ikeda, Kenzo Hisa, Taketoshi Kinoshita
  • Patent number: 10834327
    Abstract: An imaging apparatus includes an imaging device, an optical member that adjusts an amount of light of an object image incident on the imaging device, at least one memory storing a program, and at least one processor that when executing the program is configured to adjust transmittance of the optical member, amplify an image signal output when an image of an object is captured using the imaging device, and control exposure by changing an exposure condition including an exposure index.
    Type: Grant
    Filed: March 21, 2019
    Date of Patent: November 10, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Kenzo Hisa
  • Publication number: 20190306397
    Abstract: An imaging apparatus includes an imaging device, an optical member that adjusts an amount of light of an object image incident on the imaging device, at least one memory storing a program, and at least one processor that when executing the program is configured to adjust transmittance of the optical member, amplify an image signal output when an image of an object is captured using the imaging device, and control exposure by changing an exposure condition including an exposure index.
    Type: Application
    Filed: March 21, 2019
    Publication date: October 3, 2019
    Inventor: Kenzo Hisa
  • Publication number: 20190238737
    Abstract: An image capture apparatus that allows the user to easily change the brightness of an image that is shot while using automatic exposure control is disclosed. The image capture apparatus comprises a setting unit configured to be able to set a reference value of proper exposure. The image capture apparatus determines exposure conditions based on the luminance information and the reference value, wherein the reference value is a value used as a reference exposure value from which exposure conditions are varied in an exposure compensation.
    Type: Application
    Filed: January 22, 2019
    Publication date: August 1, 2019
    Inventors: Keisuke Matsuno, Takeshi Ikeda, Kenzo Hisa, Taketoshi Kinoshita
  • Patent number: 9992426
    Abstract: An image capturing apparatus includes: an image capturing unit for capturing an object image; an expander for expanding the dynamic range of the image capturing unit by reducing the exposure of the image capturing unit; a tone correction unit for performing tone correction on image data; a display unit for displaying a display image obtained by the tone correction unit; a detection unit for detecting signal values of a region within a screen of the image capturing unit after the expander expands the dynamic range; and a control unit for, in the case where the dynamic range is expanded, changing a characteristic of tone correction so as to suppress change in the display image caused by the change in the dynamic range.
    Type: Grant
    Filed: May 3, 2016
    Date of Patent: June 5, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventor: Kenzo Hisa
  • Publication number: 20180063401
    Abstract: An image capturing apparatus comprises an image sensor in which a plurality of pixels are arranged two-dimensionally, wherein each of the pixels have a photoelectric conversion portion, a holding portion that holds a charge obtained by the photoelectric conversion portion, an amplification portion that outputs a signal based on a charge outputted from the holding portion, a first transfer switch that transfers the charge from the photoelectric conversion portion to the holding portion, and a second transfer switch that transfers the charge from the holding portion to the amplification portion; and a controller that controls a number of times that the first transfer switch is turned on in relation to the second transfer switch being turned on one time.
    Type: Application
    Filed: July 28, 2017
    Publication date: March 1, 2018
    Inventors: Takenori Kobuse, Kenzo Hisa
  • Publication number: 20160360085
    Abstract: An image capturing apparatus includes: an image capturing unit for capturing an object image; an expander for expanding the dynamic range of the image capturing unit by reducing the exposure of the image capturing unit; a tone correction unit for performing tone correction on image data; a display unit for displaying a display image obtained by the tone correction unit; a detection unit for detecting signal values of a region within a screen of the image capturing unit after the expander expands the dynamic range; and a control unit for, in the case where the dynamic range is expanded, changing a characteristic of tone correction so as to suppress change in the display image caused by the change in the dynamic range.
    Type: Application
    Filed: May 3, 2016
    Publication date: December 8, 2016
    Inventor: Kenzo Hisa
  • Patent number: 9392181
    Abstract: An image capture apparatus comprises an image capturing unit that captures an object image and outputs image data; a photometric value acquisition unit that acquires, from the image data, a first photometric value and a second photometric value different from the first photometric value; and an exposure change unit that changes exposure such that the first photometric value comes close to a target value, wherein the exposure change unit calculates a third photometric value based on the first photometric value, the target value, and the second photometric value and corrects the exposure in accordance with a difference between the third photometric value and a reference value.
    Type: Grant
    Filed: July 26, 2013
    Date of Patent: July 12, 2016
    Assignee: Canon Kabushiki Kaisha
    Inventor: Kenzo Hisa
  • Publication number: 20140055666
    Abstract: An image capture apparatus comprises an image capturing unit that captures an object image and outputs image data; a photometric value acquisition unit that acquires, from the image data, a first photometric value and a second photometric value different from the first photometric value; and an exposure change unit that changes exposure such that the first photometric value comes close to a target value, wherein the exposure change unit calculates a third photometric value based on the first photometric value, the target value, and the second photometric value and corrects the exposure in accordance with a difference between the third photometric value and a reference value.
    Type: Application
    Filed: July 26, 2013
    Publication date: February 27, 2014
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Kenzo Hisa
  • Patent number: 8625008
    Abstract: An image processing apparatus is provided in which, even if a nonlinear characteristic of a luminance-type gamma correction circuit for converting a luminance signal is changed, saturation with respect to a luminance output can be nearly constant. A signal amount of the luminance signal generated from image data that exceeds a previously defined threshold is calculated. A first nonlinear characteristic is selected from a plurality of nonlinear characteristics previously set depending on the calculated signal amount. Nonlinear conversation is performed on a signal generated from the image data to determine luminance with the selected first nonlinear characteristic. An output ratio of the first nonlinear characteristic to a second nonlinear characteristic is prepared and the second nonlinear characteristic is defined so that the output ratio is satisfied.
    Type: Grant
    Filed: November 22, 2011
    Date of Patent: January 7, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventor: Kenzo Hisa
  • Patent number: 8395683
    Abstract: An imaging apparatus includes, an imaging unit configured to output an image signal of a captured object, a processing unit configured to perform a signal processing on the image signal, wherein the processing unit includes a cyclic noise reduction unit configured to reduce a noise of the image signal, a parameter change unit configured to change a parameter concerning at least one of an imaging by the imaging unit and the signal processing, and a coefficient change unit configured to change a cyclic coefficient of the cyclic noise reduction unit.
    Type: Grant
    Filed: June 22, 2010
    Date of Patent: March 12, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventor: Kenzo Hisa
  • Publication number: 20120133806
    Abstract: An image processing apparatus is provided in which, even if a nonlinear characteristic of a luminance-type gamma correction circuit for converting a luminance signal is changed, saturation with respect to a luminance output can be nearly constant. A signal amount of the luminance signal generated from image data that exceeds a previously defined threshold is calculated. A first nonlinear characteristic is selected from a plurality of nonlinear characteristics previously set depending on the calculated signal amount. Nonlinear conversation is performed on a signal generated from the image data to determine luminance with the selected first nonlinear characteristic. An output ratio of the first nonlinear characteristic to a second nonlinear characteristic is prepared and the second nonlinear characteristic is defined so that the output ratio is satisfied.
    Type: Application
    Filed: November 22, 2011
    Publication date: May 31, 2012
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Kenzo HISA
  • Publication number: 20110001852
    Abstract: An imaging apparatus includes, an imaging unit configured to output an image signal of a captured object, a processing unit configured to perform a signal processing on the image signal, wherein the processing unit includes a cyclic noise reduction unit configured to reduce a noise of the image signal, a parameter change unit configured to change a parameter concerning at least one of an imaging by the imaging unit and the signal processing, and a coefficient change unit configured to change a cyclic coefficient of the cyclic noise reduction unit.
    Type: Application
    Filed: June 22, 2010
    Publication date: January 6, 2011
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Kenzo Hisa