Patents by Inventor Takashi Ichimiya

Takashi Ichimiya 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: 20240121506
    Abstract: A system includes an electronic device having an image sensor that performs shooting by controlling an exposure period of performing photoelectric conversion on incident light and accumulating charge by using electronic shutter and a notification apparatus capable of communicating with the electronic device. Information indicating at least either of an exposure start timing and an exposure end timing of the image sensor is transmitted from the electronic device to the notification apparatus, and notification is performed in the notification apparatus according to at least either of the exposure start timing and the exposure end timing based on the information transmitted from the electronic device.
    Type: Application
    Filed: October 3, 2023
    Publication date: April 11, 2024
    Inventors: Yosuke MINE, Takashi ICHIMIYA
  • Publication number: 20240054958
    Abstract: A display apparatus includes light emitting elements that are driven by current and a voltage control unit that controls a driving voltage for driving the light emitting elements based on a temperature of the display apparatus. The voltage control unit performs control such that an amount of change in the driving voltage per unit time does not exceed a predetermined limited range. The predetermined limited range is determined based on a relationship between the change in the driving voltage and a change in a light emission luminance of the light emitting elements.
    Type: Application
    Filed: July 19, 2023
    Publication date: February 15, 2024
    Inventors: MAKOTO IKEDA, TAKASHI ICHIMIYA
  • Publication number: 20220277590
    Abstract: Line-of-sight detection taking into account the shape of the pupil is performed. A central processing unit (CPU) detects a group of contour coordinates of the pupil from an eyeball image obtained as a result of capturing an image of the eyeball of an observer and performs control to perform line-of-sight detection taking into account the shape of the pupil.
    Type: Application
    Filed: February 23, 2022
    Publication date: September 1, 2022
    Inventors: Yosuke Mine, Takashi Ichimiya
  • Patent number: 11206356
    Abstract: An apparatus includes a first capturing unit configured to obtain a first image; and a second capturing unit configured to obtain a second image having a wider angle of view than an angle of view of the first image. The apparatus controls each of a first display device corresponding to one eye of a user and a second display device corresponding to the other eye of the user to display an image based on the first image or the second image. In a case where no subject exists in the first image, the apparatus causes at least one of the first display device and the second display device to display the second image.
    Type: Grant
    Filed: May 27, 2021
    Date of Patent: December 21, 2021
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Ryuta Suzuki, Takashi Ichimiya, Kouji Ikeda
  • Publication number: 20210385385
    Abstract: An apparatus includes a first capturing unit configured to obtain a first image; and a second capturing unit configured to obtain a second image having a wider angle of view than an angle of view of the first image. The apparatus controls each of a first display device corresponding to one eye of a user and a second display device corresponding to the other eye of the user to display an image based on the first image or the second image. In a case where no subject exists in the first image, the apparatus causes at least one of the first display device and the second display device to display the second image.
    Type: Application
    Filed: May 27, 2021
    Publication date: December 9, 2021
    Inventors: Ryuta Suzuki, Takashi Ichimiya, Kouji Ikeda
  • Patent number: 11140310
    Abstract: A focus detection apparatus includes an image sensor having a plurality of pixels and an AD converter configured to switch a low-luminance conversion mode and a high-luminance conversion mode, a determination unit configured to determine whether an output signal is a signal AD converted in both the low-luminance conversion mode and the high-luminance conversion mode or a signal AD converted in only one of the two modes, an inhibition unit configured to, in a case where the output signal from the AD converter is a signal AD converted in both the two modes, inhibit a level difference of the output signal at a boundary between the two modes, and a calculation unit configured to, based on the signal for which the level difference is inhibited, calculate an amount of defocus of the imaging lens.
    Type: Grant
    Filed: October 14, 2020
    Date of Patent: October 5, 2021
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Takashi Ichimiya
  • Patent number: 11032453
    Abstract: An image capturing apparatus includes a light receiving sensor including two-dimensionally arranged pixels and configured to photoelectrically convert a pair of object images and to output a first image signal and a second image signal, each of the first image signal and the second image signal corresponding to a respective object image of the pair of object images; a calculation unit configured to calculate a first phase difference between the first image signal and the second image signal in the first direction and a second phase difference in a second direction; a focus detection unit configured to calculate a first focus detection result based on the first phase difference; and a determination unit configured to determine presence or absence of heat haze based on the second phase difference.
    Type: Grant
    Filed: June 18, 2020
    Date of Patent: June 8, 2021
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Takashi Ichimiya
  • Publication number: 20210120169
    Abstract: A focus detection apparatus includes an image sensor having a plurality of pixels and an AD converter configured to switch a low-luminance conversion mode and a high-luminance conversion mode, a determination unit configured to determine whether an output signal is a signal AD converted in both the low-luminance conversion mode and the high-luminance conversion mode or a signal AD converted in only one of the two modes, an inhibition unit configured to, in a case where the output signal from the AD converter is a signal AD converted in both the two modes, inhibit a level difference of the output signal at a boundary between the two modes, and a calculation unit configured to, based on the signal for which the level difference is inhibited, calculate an amount of defocus of the imaging lens.
    Type: Application
    Filed: October 14, 2020
    Publication date: April 22, 2021
    Inventor: Takashi Ichimiya
  • Publication number: 20200404134
    Abstract: An image capturing apparatus includes a light receiving sensor including two-dimensionally arranged pixels and configured to photoelectrically convert a pair of object images and to output a first image signal and a second image signal, each of the first image signal and the second image signal corresponding to a respective object image of the pair of object images; a calculation unit configured to calculate a first phase difference between the first image signal and the second image signal in the first direction and a second phase difference in a second direction; a focus detection unit configured to calculate a first focus detection result based on the first phase difference; and a determination unit configured to determine presence or absence of heat haze based on the second phase difference.
    Type: Application
    Filed: June 18, 2020
    Publication date: December 24, 2020
    Inventor: Takashi Ichimiya
  • Publication number: 20200296274
    Abstract: An image capturing apparatus includes a two-dimensional imaging sensor having a first imaging area and a second imaging area respectively receiving light having passed through a first pupil area and a second pupil area, a calculation unit configured to add pixels in the first imaging area in a predetermined direction that differs from two directions, which are the correlation calculation direction and a direction perpendicular to the correlation calculation direction, to form a first line signal in which the added pixels line up in the correlation calculation direction, to add pixels in the second imaging area in the predetermined direction to form a second line signal in which the added pixels line up in the correlation calculation direction, and to perform a correlation calculation using the first line signal and the second line signal.
    Type: Application
    Filed: March 10, 2020
    Publication date: September 17, 2020
    Inventor: Takashi Ichimiya
  • Patent number: 10491799
    Abstract: A focus detection apparatus includes a first acquirer configured to acquire a first distance as a distance between a pair of object images in the first direction based on the pair of phase difference image signals, a second acquirer configured to acquire a correction value corresponding to a second distance as the distance in the second direction, and a calculator configured to calculate the phase difference using the first distance and the correction value.
    Type: Grant
    Filed: June 12, 2017
    Date of Patent: November 26, 2019
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Hiroshi Abe, Takashi Ichimiya
  • Publication number: 20190296063
    Abstract: A focus detection apparatus comprises: an image sensor having a pixel region, having a plurality of pixels, which includes a pair of first light receiving areas that receive a pair of light beams which have undergone pupil division in a first direction, and a pair of second light receiving areas that receive a pair of light beams which have undergone pupil division in a second direction different from the first direction, and a scanning unit that selects rows of the pixel area from which signals are read out, wherein the first light receiving areas and the second light receiving areas are arranged so as not to be simultaneously included in the rows selected by the scanning unit.
    Type: Application
    Filed: March 25, 2019
    Publication date: September 26, 2019
    Inventor: Takashi Ichimiya
  • Patent number: 10348988
    Abstract: A focus detection apparatus comprises a line sensor including a photoelectric conversion element and an integrating capacitor, a storage unit configured to store information concerning a defective pixel, a first comparison unit configured to compare a signal from the defective pixel with a predetermined threshold, a switching unit configured to switch between a first accumulation mode and a second accumulation mode, and a control unit configured to control the switching unit so as to set the line sensor in the first accumulation mode if the first comparison unit determines that a signal from the defective pixel is not more than the predetermined threshold and set the line sensor in the second accumulation mode if the first comparison unit determines that a signal from the defective pixel is larger than the threshold.
    Type: Grant
    Filed: December 8, 2016
    Date of Patent: July 9, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takayuki Shu, Takashi Ichimiya
  • Patent number: 10091410
    Abstract: A focus detection apparatus comprises: a determination unit that determines whether a flicker light source is included in focus detection areas; a plurality of sensors for focus detection that correspond to the focus detection areas, and accumulate electric charges corresponding to received light; and a controller that controls accumulation in the sensors. The controller monitors a signal that is based on electric charges accumulated in the sensors, and performs first control for stopping accumulation in a sensor in which the signal has exceeded a predetermined threshold value, and second control for stopping accumulation in a sensor which continues accumulation of electric charges when a maximum accumulation period has reached. The controller sets the maximum accumulation period based on a determination result by the determination unit and the accumulation period of a first sensor in which the first control is performed first.
    Type: Grant
    Filed: June 8, 2017
    Date of Patent: October 2, 2018
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Takashi Ichimiya
  • Publication number: 20180007253
    Abstract: A focus detection apparatus includes a first acquirer configured to acquire a first distance as a distance between a pair of object images in the first direction based on the pair of phase difference image signals, a second acquirer configured to acquire a correction value corresponding to a second distance as the distance in the second direction, and a calculator configured to calculate the phase difference using the first distance and the correction value.
    Type: Application
    Filed: June 12, 2017
    Publication date: January 4, 2018
    Inventors: Hiroshi Abe, Takashi Ichimiya
  • Patent number: 9857220
    Abstract: A photoelectric converter includes a photoelectric conversion portion (PD) which receives light from an object to generate charges, a transfer portion (MTX) which transfers the charges generated by the photoelectric conversion portion, a capacitance portion (Cfd, Cs) which accumulates the charges transferred from the transfer portion, a determination unit (109) which determines whether an accumulation of the charges in the capacitance portion is to be stopped based on a signal corresponding to a charge amount accumulated in the capacitance portion during a first time period, and a setting unit (ST) which sets a height of a potential barrier in the transfer portion (transfer channel region), and the setting unit changes the height of the potential barrier in the transfer portion between the first time period and a second time period different from the first time period.
    Type: Grant
    Filed: April 8, 2016
    Date of Patent: January 2, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventor: Takashi Ichimiya
  • Publication number: 20170366735
    Abstract: A focus detection apparatus comprises: a determination unit that determines whether a flicker light source is included in focus detection areas; a plurality of sensors for focus detection that correspond to the focus detection areas, and accumulate electric charges corresponding to received light; and a controller that controls accumulation in the sensors. The controller monitors a signal that is based on electric charges accumulated in the sensors, and performs first control for stopping accumulation in a sensor in which the signal has exceeded a predetermined threshold value, and second control for stopping accumulation in a sensor which continues accumulation of electric charges when a maximum accumulation period has reached. The controller sets the maximum accumulation period based on a determination result by the determination unit and the accumulation period of a first sensor in which the first control is performed first.
    Type: Application
    Filed: June 8, 2017
    Publication date: December 21, 2017
    Inventor: Takashi Ichimiya
  • Publication number: 20170094207
    Abstract: A focus detection apparatus comprises a line sensor including a photoelectric conversion element and an integrating capacitor, a storage unit configured to store information concerning a defective pixel, a first comparison unit configured to compare a signal from the defective pixel with a predetermined threshold, a switching unit configured to switch between a first accumulation mode and a second accumulation mode, and a control unit configured to control the switching unit so as to set the line sensor in the first accumulation mode if the first comparison unit determines that a signal from the defective pixel is not more than the predetermined threshold and set the line sensor in the second accumulation mode if the first comparison unit determines that a signal from the defective pixel is larger than the threshold.
    Type: Application
    Filed: December 8, 2016
    Publication date: March 30, 2017
    Inventors: Takayuki Shu, Takashi Ichimiya
  • Patent number: 9554033
    Abstract: A focus detection apparatus comprises a line sensor including a photoelectric conversion element and an integrating capacitor, a storage unit configured to store information concerning a defective pixel, a first comparison unit configured to compare a signal from the defective pixel with a predetermined threshold, a switching unit configured to switch between a first accumulation mode and a second accumulation mode, and a control unit configured to control the switching unit so as to set the line sensor in the first accumulation mode if the first comparison unit determines that a signal from the defective pixel is not more than the predetermined threshold and set the line sensor in the second accumulation mode if the first comparison unit determines that a signal from the defective pixel is larger than the threshold.
    Type: Grant
    Filed: March 16, 2015
    Date of Patent: January 24, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takayuki Shu, Takashi Ichimiya
  • Publication number: 20160309073
    Abstract: A photoelectric converter includes a photoelectric conversion portion (PD) which receives light from an object to generate charges, a transfer portion (MTX) which transfers the charges generated by the photoelectric conversion portion, a capacitance portion (Cfd, Cs) which accumulates the charges transferred from the transfer portion, a determination unit (109) which determines whether an accumulation of the charges in the capacitance portion is to be stopped based on a signal corresponding to a charge amount accumulated in the capacitance portion during a first time period, and a setting unit (ST) which sets a height of a potential barrier in the transfer portion (transfer channel region), and the setting unit changes the height of the potential barrier in the transfer portion between the first time period and a second time period different from the first time period.
    Type: Application
    Filed: April 8, 2016
    Publication date: October 20, 2016
    Inventor: Takashi Ichimiya