Patents by Inventor Keisuke Kudo
Keisuke Kudo 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: 20240073541Abstract: An image capturing apparatus includes a photometry unit that performs photometry of a subject, a focus detection unit that receives light from a subject and performs focus detection, and a control unit that controls an assist light device that emits assist light that illuminates a subject. The control unit controls, based on an output of the photometry unit, a light emission amount of the assist light device in such a manner that a cycle of focus detection according to a time required for the focus detection unit to perform focus detection becomes faster than a predetermined cycle.Type: ApplicationFiled: August 22, 2023Publication date: February 29, 2024Inventor: Keisuke KUDO
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Publication number: 20220337756Abstract: A control apparatus includes at least one processor that functions as a setting a plurality of focusing points by using object information that includes information on a part of an object and is based on an image signal converted from an object image, a selection unit configured to select, from the plurality of focusing points in a search area, a main focusing point on which focusing is performed, an object determination unit configured to determine, by using a focusing state of a focusing point in a part with a highest priority in priorities set for respective parts of the object, whether or not the object included in the focusing point is the same as an object included in a previously selected main focusing point, and a decision unit configured to decide the search area based on a determination made by the object determination unit.Type: ApplicationFiled: April 4, 2022Publication date: October 20, 2022Inventor: Keisuke Kudo
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Patent number: 11265454Abstract: A control apparatus includes a focus detecting unit configured to detect a defocus amount, a continuity determining unit configured to determine a continuity of a focus detection result, a characteristic detecting unit configured to detect characteristics of a main object and of surroundings of the main object, a controlling unit configured to change a parameter relating to a tracking operation based on the characteristics during the tracking operation and a focus adjusting unit configured to perform a focus adjustment based on the defocus amount, the continuity of the focus detection result and the parameter.Type: GrantFiled: April 29, 2021Date of Patent: March 1, 2022Assignee: Canon Kabushiki KaishaInventor: Keisuke Kudo
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Patent number: 11115583Abstract: An apparatus determines an object and controls driving of the focus lens based on a focus detection result.Type: GrantFiled: June 19, 2019Date of Patent: September 7, 2021Assignee: CANON KABUSHIKI KAISHAInventors: Keisuke Kudo, Takayuki Akaguma
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Publication number: 20210250514Abstract: A control apparatus includes a focus detecting unit configured to detect a defocus amount, a continuity determining unit configured to determine a continuity of a focus detection result, a characteristic detecting unit configured to detect characteristics of a main object and of surroundings of the main object, a controlling unit configured to change a parameter relating to a tracking operation based on the characteristics during the tracking operation and a focus adjusting unit configured to perform a focus adjustment based on the defocus amount, the continuity of the focus detection result and the parameter.Type: ApplicationFiled: April 29, 2021Publication date: August 12, 2021Inventor: Keisuke Kudo
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Patent number: 11025813Abstract: A control apparatus includes a focus detecting unit configured to detect a defocus amount, a continuity determining unit configured to determine a continuity of a focus detection result, a characteristic detecting unit configured to detect characteristics of a main object and of surroundings of the main object, a controlling unit configured to change a parameter relating to a tracking operation based on the characteristics during the tracking operation and a focus adjusting unit configured to perform a focus adjustment based on the defocus amount, the continuity of the focus detection result and the parameter.Type: GrantFiled: October 9, 2020Date of Patent: June 1, 2021Assignee: Canon Kabushiki KaishaInventor: Keisuke Kudo
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Publication number: 20210127066Abstract: A control apparatus includes a focus detecting unit configured to detect a defocus amount, a continuity determining unit configured to determine a continuity of a focus detection result, a characteristic detecting unit configured to detect characteristics of a main object and of surroundings of the main object, a controlling unit configured to change a parameter relating to a tracking operation based on the characteristics during the tracking operation and a focus adjusting unit configured to perform a focus adjustment based on the defocus amount, the continuity of the focus detection result and the parameter.Type: ApplicationFiled: October 9, 2020Publication date: April 29, 2021Inventor: Keisuke Kudo
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Publication number: 20200007780Abstract: An apparatus determines an object and controls driving of the focus lens based on a focus detection result.Type: ApplicationFiled: June 19, 2019Publication date: January 2, 2020Inventors: Keisuke Kudo, Takayuki Akaguma
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Patent number: 10057478Abstract: A focus detecting apparatus includes a receiving unit receiving designation of a position in a region of an image, a setting unit setting a first region in the image, an object detecting unit detecting a region of an object corresponding to the first region in continuously acquired images, a focus detection unit detecting a focusing state based on a signal from the image capturing unit corresponding to the detected object region, and a calculating unit calculating a predetermined index related to focusing state. If the predetermined index of a second region indicates a first state, the setting unit sets the first region based on the second region. If the predetermined index of the second region indicates a second state and the predetermined index of a third region near the second region indicates the first state, the setting unit sets the first region based on the third region.Type: GrantFiled: August 4, 2016Date of Patent: August 21, 2018Assignee: Canon Kabushiki KaishaInventor: Keisuke Kudo
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Patent number: 9591205Abstract: The focus control apparatus drives a focus element by following drive amounts: when a reliability of a phase difference focus detection is higher than a first reliability and a defocus amount is larger than a first defocus amount, a first drive amount that is smaller than a phase difference in-focus drive amount by a first non-drive amount; when the reliability is higher than the first reliability and the defocus amount is smaller than the first defocus amount, the phase difference in-focus drive amount; and when the reliability is lower than the first reliability and higher than a second reliability and the defocus amount is larger than a second defocus amount, a second drive amount that is smaller than the phase difference in-focus drive amount by a second non-drive amount. The apparatus drives the focus element, in other cases, by using the contrast evaluation value.Type: GrantFiled: December 8, 2015Date of Patent: March 7, 2017Assignee: Canon Kabushiki KaishaInventor: Keisuke Kudo
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Patent number: 9591200Abstract: An imaging apparatus to which an accessory is detachably attached includes an imaging unit configured to convert an object image into an electrical signal, a signal generation unit configured to generate a vertical synchronizing signal that is synchronized with a timing of exposure of the imaging unit and output the generated vertical synchronizing signal, a control unit configured to control communication with the accessory based on the vertical synchronizing signal, a first terminal configured to send a clock signal generated by the control unit to the accessory, and a second terminal configured to communicate data with the accessory based on the clock signal, in which the control unit controls a signal level at the first terminal to a predetermined level when the communication of the data ends, and then changes the signal level in synchronization with the output of the vertical synchronizing signal.Type: GrantFiled: January 6, 2015Date of Patent: March 7, 2017Assignee: Canon Kabushiki KaishaInventors: Keisuke Kudo, Yoshihiko Aihara, Minoru Uchiyama
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Publication number: 20170054893Abstract: A focus detecting apparatus includes a receiving unit receiving designation of a position in a region of an image, a setting unit setting a first region in the image, an object detecting unit detecting a region of an object corresponding to the first region in continuously acquired images, a focus detection unit detecting a focusing state based on a signal from the image capturing unit corresponding to the detected object region, and a calculating unit calculating a predetermined index related to focusing state. If the predetermined index of a second region indicates a first state, the setting unit sets the first region based on the second region. If the predetermined index of the second region indicates a second state and the predetermined index of a third region near the second region indicates the first state, the setting unit sets the first region based on the third region.Type: ApplicationFiled: August 4, 2016Publication date: February 23, 2017Inventor: Keisuke Kudo
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Patent number: 9565362Abstract: An imaging apparatus includes an image capturing unit including an image sensor capable of photoelectrically converting a subject image and configured to generate moving image data based on an output signal of the image sensor, a storage unit configured to store foreign substance information including information relating to at least a position and a size of a foreign substance adhered to an optical element disposed on a front side of the image sensor, a detection unit configured to detect a shake amount of the image sensor, a control unit configured to control an image clipping position on an entire screen of the image sensor according to the shake amount of the image sensor detected by the detection unit, and a recording unit configured to record the foreign substance information and information indicating the image clipping position in association with the moving image data.Type: GrantFiled: October 18, 2012Date of Patent: February 7, 2017Assignee: Canon Kabushiki KaishaInventor: Keisuke Kudo
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Patent number: 9380210Abstract: An imaging apparatus includes an image capturing unit including an image sensor capable of photoelectrically converting a subject image and configured to generate moving image data based on an output signal of the image sensor, a storage unit configured to store foreign substance information including information relating to at least a position and a size of a foreign substance adhered to an optical element disposed on a front side of the image sensor, a detection unit configured to detect a shake amount of the image sensor, a control unit configured to control an image clipping position on an entire screen of the image sensor according to the shake amount of the image sensor detected by the detection unit, and a recording unit configured to record the foreign substance information and information indicating the image clipping position in association with the moving image data.Type: GrantFiled: October 18, 2012Date of Patent: June 28, 2016Assignee: Canon Kabushiki KaishaInventor: Keisuke Kudo
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Publication number: 20160173760Abstract: The focus control apparatus drives a focus element by following drive amounts: when a reliability of a phase difference focus detection is higher than a first reliability and a defocus amount is larger than a first defocus amount, a first drive amount that is smaller than a phase difference in-focus drive amount by a first non-drive amount; when the reliability is higher than the first reliability and the defocus amount is smaller than the first defocus amount, the phase difference in-focus drive amount; and when the reliability is lower than the first reliability and higher than a second reliability and the defocus amount is larger than a second defocus amount, a second drive amount that is smaller than the phase difference in-focus drive amount by a second non-drive amount. The apparatus drives the focus element, in other cases, by using the contrast evaluation value.Type: ApplicationFiled: December 8, 2015Publication date: June 16, 2016Inventor: Keisuke Kudo
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Patent number: 9277114Abstract: An image pickup apparatus where a lens unit including an image pickup optical system including a focus lens is attachable, includes an image pickup element, a control unit that controls drive of the focus lens based on a focus signal, and an acquisition unit that acquires type information of the lens unit, and the control unit performs a first scanning operation of driving the focus lens in a first direction and perform a second scanning operation of driving the focus lens at a lower speed than a predetermined speed in a second direction after the first scanning operation, and determines whether to perform the second scanning operation based on the type information in a case where a drive speed of the focus lens when an in-focus position is detected based on the focus signal acquired during the first scanning operation is higher than the predetermined speed.Type: GrantFiled: May 8, 2014Date of Patent: March 1, 2016Assignee: Canon Kabushiki KaishaInventor: Keisuke Kudo
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Patent number: 9043496Abstract: A bridge circuit of an embodiment includes: a command transfer portion which is configured by wired logic into which a host controller capable of sending a command that corresponds to each of a plurality of devices inputs the command, and which is configured to transfer the inputted command to the plurality of devices; a command analysis portion which is configured by wired logic, and which is configured to analyze the command from the host controller; and a response reply portion which is configured by wired logic, and which is capable of reading out a response based on an analysis result of the command analysis portion from a register that holds a response corresponding to the command and sending the response to the host controller.Type: GrantFiled: February 27, 2013Date of Patent: May 26, 2015Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Makoto Inoue, Keisuke Kudo, Takayuki Nakagawa, Akira Irube
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Publication number: 20150109471Abstract: An imaging apparatus to which an accessory is detachably attached includes an imaging unit configured to convert an object image into an electrical signal, a signal generation unit configured to generate a vertical synchronizing signal that is synchronized with a timing of exposure of the imaging unit and output the generated vertical synchronizing signal, a control unit configured to control communication with the accessory based on the vertical synchronizing signal, a first terminal configured to send a clock signal generated by the control unit to the accessory, and a second terminal configured to communicate data with the accessory based on the clock signal, in which the control unit controls a signal level at the first terminal to a predetermined level when the communication of the data ends, and then changes the signal level in synchronization with the output of the vertical synchronizing signal.Type: ApplicationFiled: January 6, 2015Publication date: April 23, 2015Inventors: Keisuke Kudo, Yoshihiko Aihara, Minoru Uchiyama
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Patent number: 9013608Abstract: An image sensing apparatus includes an image sensing unit having an image sensor, an optical member which is arranged in front of the image sensor, a foreign substance detection unit which detects, from a foreign substance detection image including the image of a foreign substance adhered to the surface of the optical member, a recording unit which, when shooting a moving image, records moving image data generated based on image signals successively output from the image sensing unit, and records foreign substance information and lens information in addition to the moving image data, and a lens information obtaining unit which, when the lens information is updated by operating the imaging lens by a user during moving image shooting, obtains the updated lens information. When the lens information obtaining unit obtains the updated lens information, the recording unit records the updated lens information in addition to the moving image data.Type: GrantFiled: October 23, 2013Date of Patent: April 21, 2015Assignee: Canon Kabushiki KaishaInventors: Keisuke Kudo, Takashi Gyotoku
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Patent number: 8941774Abstract: An imaging apparatus to which an accessory is detachably attached, said accessory including an optical member, includes a signal generation unit configured to generate a vertical synchronizing signal and output the generated vertical synchronizing signal, an imaging unit configured to accumulate charges in synchronization with the vertical synchronizing signal and output an imaging signal, a control unit configured to generate a clock signal and control data communication with the accessory based on the clock signal, a first terminal for sending the clock signal to the accessory, and a second terminal for communicating data with the accessory, in which the control unit, after the data communication via the second terminal, notifies timing at which the vertical synchronizing signal is output using the clock signal via the first terminal by changing a signal level of the first terminal after a lapse of a predetermined time while the signal level is kept at a predetermined level, and controls the accessory to drType: GrantFiled: October 18, 2011Date of Patent: January 27, 2015Assignee: Canon Kabushiki KaishaInventors: Keisuke Kudo, Yoshihiko Aihara, Minoru Uchiyama