Patents by Inventor Hiroshi Nakaoka
Hiroshi Nakaoka 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).
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Publication number: 20230292003Abstract: An image pickup apparatus includes an image sensor, a memory device, and a processor. The image sensor includes first pixels and second pixels that are arranged two-dimensionally and that respectively receive visible light and invisible light entering through an image pickup optical system. Each of the first pixels and the second pixels has photoelectric conversion elements that receive light beams passing through different pupil areas of the image pickup optical system. The memory device stores instructions. The processor executes the instructions to detect focus detection results from signals output from the first pixels and signals output from the second pixels, determine a lens position of the image pickup optical system based on the focus detection results, and determine an exposure condition of a time of image pickup with the image sensor according to the focus detection results.Type: ApplicationFiled: March 3, 2023Publication date: September 14, 2023Inventors: SATOSHI SHODA, HIROSHI NAKAOKA
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Publication number: 20230291981Abstract: An apparatus records, as a single file, visible light images of a plurality of points of view, invisible light images of a plurality of points of view, meta information about visible light images corresponding to the visible light images of the plurality of points of view, and meta information about invisible light images corresponding to the invisible light images of the plurality of points of view.Type: ApplicationFiled: March 3, 2023Publication date: September 14, 2023Inventor: HIROSHI NAKAOKA
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Patent number: 11523044Abstract: A focus detection apparatus comprises a determination unit that determines whether a first signal output from an image sensor satisfies a predetermined condition, and outputs first information indicating a result of the determination, a calculation unit that performs filter processing on a plurality of the first signals using predetermined coefficients at a predetermined cycle and outputs a second signal, a generation unit that generates second information showing an effect of the first signal which satisfies the predetermined condition on the second signal using the coefficients and plural pieces of the first information corresponding to the plurality of the first signals used in the filter processing, and a focus detection unit that detects a focus state based on a plurality of the second signals and the second information.Type: GrantFiled: October 9, 2020Date of Patent: December 6, 2022Assignee: CANON KABUSHIKI KAISHAInventors: Hiroshi Nakaoka, Yohei Horikawa
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Patent number: 11514556Abstract: An apparatus which is capable of displaying an image for a user to easily recognize the brightness and colors of an area of interest in the image and easily determine whether a subject is in focus. The amount of image shift between parallax image signals is calculated. The amount of blur in an area where an image shift occurs in the parallax image signals is determined based on the amount of image shift. A blurring process is performed on at least one of the parallax image signals based on the amount of blur. An image based on the display image signal generated based on the resulting parallax image signal is displayed on a display. The determined amount of blur is greater than the amount of blur shown by a subject image defocused by the amount of defocus converted from the amount of image shift.Type: GrantFiled: May 11, 2021Date of Patent: November 29, 2022Assignee: CANON KABUSHIKI KAISHAInventor: Hiroshi Nakaoka
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Patent number: 11388335Abstract: An image processing apparatus includes a first signal processing circuit that receives image signals from an image sensor and a second signal processing circuit that performs image processing on image signals output from the first signal processing circuit. The first signal processing circuit includes an evaluation circuit that determines evaluation values for image signals, a control circuit that controls an order according to which the image signals are output to the second signal processing circuit, based on the evaluation values, and a selection circuit that selects an image signal for a single frame from among the image signals for a predetermined plural number of frames, based on the evaluation values.Type: GrantFiled: September 2, 2020Date of Patent: July 12, 2022Assignee: Canon Kabushiki KaishaInventors: Hiroshi Nakaoka, Yohei Horikawa
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Publication number: 20210358090Abstract: An apparatus which is capable of displaying an image for a user to easily recognize the brightness and colors of an area of interest in the image and easily determine whether a subject is in focus. The amount of image shift between parallax image signals is calculated. The amount of blur in an area where an image shift occurs in the parallax image signals is determined based on the amount of image shift. A blurring process is performed on at least one of the parallax image signals based on the amount of blur. An image based on the display image signal generated based on the resulting parallax image signal is displayed on a display. The determined amount of blur is greater than the amount of blur shown by a subject image defocused by the amount of defocus converted from the amount of image shift.Type: ApplicationFiled: May 11, 2021Publication date: November 18, 2021Inventor: Hiroshi Nakaoka
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Publication number: 20210112205Abstract: A focus detection apparatus comprises a determination unit that determines whether a first signal output from an image sensor satisfies a predetermined condition, and outputs first information indicating a result of the determination, a calculation unit that performs filter processing on a plurality of the first signals using predetermined coefficients at a predetermined cycle and outputs a second signal, a generation unit that generates second information showing an effect of the first signal which satisfies the predetermined condition on the second signal using the coefficients and plural pieces of the first information corresponding to the plurality of the first signals used in the filter processing, and a focus detection unit that detects a focus state based on a plurality of the second signals and the second information.Type: ApplicationFiled: October 9, 2020Publication date: April 15, 2021Inventors: Hiroshi NAKAOKA, Yohei HORIKAWA
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Publication number: 20210075960Abstract: An image processing apparatus comprises a first signal processing circuit that receives image signals from an image sensor and a second signal processing circuit that performs image processing on image signals output from the first signal processing circuit. The first signal processing circuit controls an order according to which the image signals are output to the second signal processing circuit, based on evaluation values for the image signals.Type: ApplicationFiled: September 2, 2020Publication date: March 11, 2021Inventors: Hiroshi Nakaoka, Yohei Horikawa
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Patent number: 10737673Abstract: An electric-brake controller includes an antilock controller configured to control a pressing force of an electric brake. The electric brake includes a pressing member that is advanced by rotation of an electric motor in a forward direction to press a friction member against a brake rotation member. The electric brake includes a return spring that applies a spring force such that the pressing member is moved away from the brake rotation member. The antilock controller includes a pressing-force reducer that reduces the pressing force. The pressing-force reducer includes: a reverse-rotation-current supplier that supplies reverse-rotation current for rotating the electric motor in a reverse direction for a reverse-rotation-current supply time; and a forward-rotation-current supplier that supplies forward-rotation current, for rotating the electric motor in the forward direction, to the electric motor after the reverse-rotation current is supplied for the reverse-rotation-current supply time.Type: GrantFiled: November 12, 2018Date of Patent: August 11, 2020Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Hiroshi Nakaoka
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Patent number: 10618505Abstract: A current whose magnitude corresponds to first pressing force-current characteristics set to prevent forward movement of a driven member from being stopped is applied to a motor when the driven member moves forward, and a current whose magnitude corresponds to second pressing force-current characteristics set to move the stopped driven member forward is applied to the motor when the driven member is stopped, in the case where a relationship between a pressing force as a force with which a friction member presses a rotating body and an energization current to the motor is defined as pressing force-current characteristics.Type: GrantFiled: November 30, 2017Date of Patent: April 14, 2020Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Hiroshi Nakaoka
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Patent number: 10425590Abstract: According to an aspect of the invention, an imaging apparatus includes: a read unit configured to perform a first driving that reads image signals from each of photoelectric conversion units and a second driving that simultaneously reads image signals from the photoelectric conversion units, the photoelectric conversion units receiving light that passes through pupil regions having different imaging optical systems; a compensating unit configured to perform a process of compensating a first linearity based on the image signals obtained by the first driving and a second linearity based on the image signals obtained by the second driving, each of the first and second linearities being a relation between an amount of light incident to the photoelectric conversion unit and a brightness of the image signals read by the reading unit; and a generating unit configured to generate an image signal for recording by adding the image signals compensated the first linearity by the compensating unit.Type: GrantFiled: April 13, 2018Date of Patent: September 24, 2019Assignee: Canon Kabushiki KaishaInventor: Hiroshi Nakaoka
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Publication number: 20190152451Abstract: An electric-brake controller includes an antilock controller configured to control a pressing force of an electric brake. The electric brake includes a pressing member that is advanced by rotation of an electric motor in a forward direction to press a friction member against a brake rotation member. The electric brake includes a return spring that applies a spring force such that the pressing member is moved away from the brake rotation member. The antilock controller includes a pressing-force reducer that reduces the pressing force. The pressing-force reducer includes: a reverse-rotation-current supplier that supplies reverse-rotation current for rotating the electric motor in a reverse direction for a reverse-rotation-current supply time; and a forward-rotation-current supplier that supplies forward-rotation current, for rotating the electric motor in the forward direction, to the electric motor after the reverse-rotation current is supplied for the reverse-rotation-current supply time.Type: ApplicationFiled: November 12, 2018Publication date: May 23, 2019Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Hiroshi NAKAOKA
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Patent number: 10196049Abstract: A hydraulic brake system, including: a brake operation member; a brake device; a master cylinder; a communication switching valve; a low-pressure-source shut-off valve; a high-pressure source; a regulator; a pressure adjuster; and a controller, wherein, when a pressurizing state of the master cylinder is switched from a first pressurizing state to a second pressurizing state after initiation of an operation on the brake operation member, the controller executes a pressurizing-state switching control in which switching of a state of the low-pressure-source shut-off valve from an open state to a closed state and switching of a state of the communication switching valve from a closed state to an open state are carried out after a pressure-regulating state of the regulator has been switched from a first pressure-regulating state to a second pressure-regulating state by controlling the pressure adjuster to increase a second pilot pressure while the first pressurizing state is maintained.Type: GrantFiled: November 16, 2015Date of Patent: February 5, 2019Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, ADVICS CO., LTD.Inventors: Hiroshi Nakaoka, Kiyoyuki Uchida, Masaki Maruyama
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Patent number: 10142571Abstract: An image capturing apparatus comprises an image sensor including a plurality of photoelectric conversion portions for each of a plurality of microlenses, performs readout control using one of a first readout method of reading out a plurality of image signals from the plurality of photoelectric conversion portions corresponding to each of the microlenses, and a second readout method of reading out an added image signal from the plurality of photoelectric conversion portions corresponding to each of the microlenses, determines whether an image signal is read out using the first readout method or the second readout method, adds the plurality of image signals read out using the first readout method, and adjusts the added image signal obtained through the addition by an increased amount of the black level that has increased due to the addition as an adjustment value.Type: GrantFiled: April 12, 2017Date of Patent: November 27, 2018Assignee: Canon Kabushiki KaishaInventor: Hiroshi Nakaoka
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Publication number: 20180316838Abstract: According to an aspect of the invention, an imaging apparatus includes: a read unit configured to perform a first driving that reads image signals from each of photoelectric conversion units and a second driving that simultaneously reads image signals from the photoelectric conversion units, the photoelectric conversion units receiving light that passes through pupil regions having different imaging optical systems; a compensating unit configured to perform a process of compensating a first linearity based on the image signals obtained by the first driving and a second linearity based on the image signals obtained by the second driving, each of the first and second linearities being a relation between an amount of light incident to the photoelectric conversion unit and a brightness of the image signals read by the reading unit; and a generating unit configured to generate an image signal for recording by adding the image signals compensated the first linearity by the compensating unit.Type: ApplicationFiled: April 13, 2018Publication date: November 1, 2018Inventor: Hiroshi Nakaoka
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Patent number: 10104308Abstract: An image capturing apparatus comprises an image sensor, a driving unit configured to drive the image sensor, and a detection unit configured to detect a variation in amount of light within one frame image based on a plurality of image signals obtained by driving the image sensor with different accumulation periods by the driving unit.Type: GrantFiled: July 13, 2015Date of Patent: October 16, 2018Assignee: Canon Kabushiki KaishaInventor: Hiroshi Nakaoka
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Publication number: 20180162333Abstract: A current whose magnitude corresponds to first pressing force-current characteristics set to prevent forward movement of a driven member from being stopped is applied to a motor when the driven member moves forward, and a current whose magnitude corresponds to second pressing force-current characteristics set to move the stopped driven member forward is applied to the motor when the driven member is stopped, in the case where a relationship between a pressing force as a force with which a friction member presses a rotating body and an energization current to the motor is defined as pressing force-current characteristics.Type: ApplicationFiled: November 30, 2017Publication date: June 14, 2018Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Hiroshi NAKAOKA
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Publication number: 20180093652Abstract: A hydraulic brake system, including: a brake operation member; a brake device; a master cylinder; a communication switching valve; a low-pressure-source shut-off valve; a high-pressure source; a regulator; a pressure adjuster; and a controller, wherein, when a pressurizing state of the master cylinder is switched from a first pressurizing state to a second pressurizing state after initiation of an operation on the brake operation member, the controller executes a pressurizing-state switching control in which switching of a state of the low-pressure-source shut-off valve from an open state to a closed state and switching of a state of the communication switching valve from a closed state to an open state are carried out after a pressure-regulating state of the regulator has been switched from a first pressure-regulating state to a second pressure-regulating state by controlling the pressure adjuster to increase a second pilot pressure while the first pressurizing state is maintained.Type: ApplicationFiled: November 16, 2015Publication date: April 5, 2018Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, ADVICS CO., LTD.Inventors: Hiroshi NAKAOKA, Kiyoyuki UCHIDA, Masaki MARUYAMA
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Publication number: 20170310912Abstract: An image capturing apparatus comprises an image sensor including a plurality of photoelectric conversion portions for each of a plurality of microlenses, performs readout control using one of a first readout method of reading out a plurality of image signals from the plurality of photoelectric conversion portions corresponding to each of the microlenses, and a second readout method of reading out an added image signal from the plurality of photoelectric conversion portions corresponding to each of the microlenses, determines whether an image signal is read out using the first readout method or the second readout method, adds the plurality of image signals read out using the first readout method, and adjusts the added image signal obtained through the addition by an increased amount of the black level that has increased due to the addition as an adjustment value.Type: ApplicationFiled: April 12, 2017Publication date: October 26, 2017Inventor: Hiroshi Nakaoka
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Patent number: 9586488Abstract: A first ECU estimates whether the operation of a second actuator has been started, based on the variation of the hydraulic pressure with respect to the flow rate of hydraulic fluid outputted from a first actuator. Even in a case where the operation information of the second actuator is not received, the first ECU sets the control mode to a simultaneous operation mode, when it is estimated that the operation of the second actuator has been started. In the simultaneous operation mode, a controlled parameter of linear control valves on assumption that the second actuator is operating is set up, and a stop instruction of regenerative braking is transmitted to a hybrid ECU.Type: GrantFiled: May 21, 2013Date of Patent: March 7, 2017Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hiroshi Nakaoka, Kei Sato, Kazunori Nimura, Kentaro Oya, Takeshi Ishida, Masaki Nanahara, Tsuyoshi Yamasaki, Yoshito Tanaka, Masayasu Ohkubo