Patents by Inventor Toshihiko Tomosada
Toshihiko Tomosada 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: 20240015390Abstract: A control apparatus is configured to control a display unit configured to superimpose and display a captured image captured by an image sensor and display items indicating in-focus degrees of a plurality of focus detecting areas in the captured image. The control apparatus includes a memory that stores a set of instructions, and at least one processor that executes the set of instructions to change a display state of the display items according to a state of a manual focus operation by a user.Type: ApplicationFiled: June 30, 2023Publication date: January 11, 2024Inventors: Hideyasu HONGU, Toshihiko TOMOSADA
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Patent number: 11812144Abstract: A focus adjustment apparatus comprises a detection unit that detects one or more main subject candidates for a main subject from image signals based on a predetermined first condition, a selection unit that selects the main subject from the one or more main subject candidates, an acquisition unit that acquires operation information of an operation unit for moving a position of a focus lens, and a focus adjustment unit that controls the focus lens so as to focus on the selected main subject in a case where an autofocus mode is set and the operation unit is not operated. In a case where the operation unit is operated, the selection unit selects the main subject based on an in-focus position of the focus lens and fixes the selected main subject.Type: GrantFiled: September 14, 2021Date of Patent: November 7, 2023Assignee: CANON KABUSHIKI KAISHAInventors: Hideyasu Hongu, Toshihiko Tomosada, Motoyuki Asano, Makoto Yokozeki
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Publication number: 20220094840Abstract: A focus adjustment apparatus comprises a detection unit that detects one or more main subject candidates for a main subject from image signals based on a predetermined first condition, a selection unit that selects the main subject from the one or more main subject candidates, an acquisition unit that acquires operation information of an operation unit for moving a position of a focus lens, and a focus adjustment unit that controls the focus lens so as to focus on the selected main subject in a case where an autofocus mode is set and the operation unit is not operated. In a case where the operation unit is operated, the selection unit selects the main subject based on an in-focus position of the focus lens and fixes the selected main subject.Type: ApplicationFiled: September 14, 2021Publication date: March 24, 2022Inventors: Hideyasu Hongu, Toshihiko Tomosada, Motoyuki Asano, Makoto Yokozeki
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Patent number: 11102394Abstract: A control apparatus includes a focus detector configured to detect a defocus amount based on a phase difference between a pair of image signals generated based on light beams having passed through mutually different pupil areas in an imaging optical system, and a controller configured to control a focus lens in the imaging optical system. The controller is configured to perform an autofocus control based on the defocus amount detected by the focus detector, and a manual focus control based on an operation of a user via an operation member. The controller performs the autofocus control when a change amount relating to a speed of the focus lens in the manual focus control falls within a predetermined range.Type: GrantFiled: May 24, 2019Date of Patent: August 24, 2021Assignee: CANON KABUSHIKI KAISHAInventors: Toshihiko Tomosada, Hideyasu Hongu, Atsushi Kato
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Patent number: 10638033Abstract: In a focus control apparatus, an acquisition unit periodically acquires a pair of focus detection signals, a focus detection unit detects a focus state of a first area using a phase difference and, in a case where the focus state of the first area is not within a first range, detects a focus state using a phase difference in a second area arranged in a periphery of the first area, and a control unit controls to perform focus control. The focus control is performed based on the focus state of the second area if it is within a second range and, if a subject exists on a near side, focus control is performed based on the focus state of the first area regardless of the focus state of the second area being detected or not.Type: GrantFiled: August 1, 2018Date of Patent: April 28, 2020Assignee: CANON KABUSHIKI KAISHAInventors: Toshihiko Tomosada, Tatsuya Wada, Hideyasu Hongu
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Publication number: 20190373180Abstract: A control apparatus includes a focus detector configured to detect a defocus amount based on a phase difference between a pair of image signals generated based on light beams having passed through mutually different pupil areas in an imaging optical system, and a controller configured to control a focus lens in the imaging optical system. The controller is configured to perform an autofocus control based on the defocus amount detected by the focus detector, and a manual focus control based on an operation of a user via an operation member. The controller performs the autofocus control when a change amount relating to a speed of the focus lens in the manual focus control falls within a predetermined range.Type: ApplicationFiled: May 24, 2019Publication date: December 5, 2019Inventors: Toshihiko Tomosada, Hideyasu Hongu, Atsushi Kato
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Patent number: 10324267Abstract: A focus adjustment apparatus includes an imaging unit, a focus detection unit configured to detect a focusing state based on a signal output from the imaging unit, a determination unit configured to determine whether an in-focus position is present within a predetermined range from a current position of a focus lens based on the detected focusing state, a control unit configured to perform control to correct the position of the focus lens moved by a manual operation according to a result of the determination made by the determination unit, and an acquisition unit configured to acquire from a storage unit a movement speed of the focus lens corresponding to the manual operation, wherein the control unit performs control to move the focus lens at a speed determined based on the movement speed acquired from the storage unit.Type: GrantFiled: May 4, 2015Date of Patent: June 18, 2019Assignee: Canon Kabushiki KaishaInventor: Toshihiko Tomosada
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Publication number: 20190045133Abstract: In a focus control apparatus, an acquisition unit periodically acquires a pair of focus detection signals, a focus detection unit detects a focus state of a first area using a phase difference and, in a case where the focus state of the first area is not within a first range, detects a focus state using a phase difference in a second area arranged in a periphery of the first area, and a control unit controls to perform focus control. The focus control is performed based on the focus state of the second area if it is within a second range and, if a subject exists on a near side, focus control is performed based on the focus state of the first area regardless of the focus state of the second area being detected or not.Type: ApplicationFiled: August 1, 2018Publication date: February 7, 2019Inventors: Toshihiko Tomosada, Tatsuya Wada, Hideyasu Hongu
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Patent number: 10113888Abstract: The position detection apparatus includes the first optical position detector used with an optical scale having periodic patterns. The first position detector receives lights from the periodic patterns when moving relatively to the optical scale with a movement of a movable member to generate first detection signals respectively changing at periods corresponding to periods of the periodic patterns. The second non-optical position detector generates a second detection signal changing with the movement of the movable member. The calculator produces a first position signal by using the first detection signals, produces a second position signal whose resolution is different from that of the first position signal, by using the second detection signal, and performs a calculation for combining the first and second position signals together to produce an absolute position signal.Type: GrantFiled: February 29, 2016Date of Patent: October 30, 2018Assignee: CANON KABUSHIKI KAISHAInventors: Hirofumi Honda, Daisuke Ishikawa, Toshihiko Tomosada
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Patent number: 9794466Abstract: A lens unit L100 is removably mounted on an image pickup apparatus generating control information used for a vibration control that vibrates a correction lens L105 and moves a vibration center of the correction lens L105, includes an image pickup optical system including a magnification varying lens L102 and the correction lens L105, a storage unit storing first information indicating a relation between positions of the magnification varying lens L102 and the correction lens L105, and a lens controller performing a predetermined control in which the correction lens L105 moves in accordance with the movement of the magnification varying lens L102, and the lens controller sends information relating to the magnification varying operation to the image pickup apparatus, and overlaps the vibration control of the correction lens L105 based on the control information in accordance with the information relating to the magnification varying operation with the predetermined control.Type: GrantFiled: October 5, 2015Date of Patent: October 17, 2017Assignee: Canon Kabushiki KaishaInventors: Toshihiko Tomosada, Shun Nakamura
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Publication number: 20160258787Abstract: The position detection apparatus includes the first optical position detector used with an optical scale having periodic patterns. The first position detector receives lights from the periodic patterns when moving relatively to the optical scale with a movement of a movable member to generate first detection signals respectively changing at periods corresponding to periods of the periodic patterns. The second non-optical position detector generates a second detection signal changing with the movement of the movable member. The calculator produces a first position signal by using the first detection signals, produces a second position signal whose resolution is different from that of the first position signal, by using the second detection signal, and performs a calculation for combining the first and second position signals together to produce an absolute position signal.Type: ApplicationFiled: February 29, 2016Publication date: September 8, 2016Inventors: Hirofumi Honda, Daisuke Ishikawa, Toshihiko Tomosada
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Publication number: 20160037051Abstract: A lens unit L100 is removably mounted on an image pickup apparatus generating control information used for a vibration control that vibrates a correction lens L105 and moves a vibration center of the correction lens L105, includes an image pickup optical system including a magnification varying lens L102 and the correction lens L105, a storage unit storing first information indicating a relation between positions of the magnification varying lens L102 and the correction lens L105, and a lens controller performing a predetermined control in which the correction lens L105 moves in accordance with the movement of the magnification varying lens L102, and the lens controller sends information relating to the magnification varying operation to the image pickup apparatus, and overlaps the vibration control of the correction lens L105 based on the control information in accordance with the information relating to the magnification varying operation with the predetermined control.Type: ApplicationFiled: October 5, 2015Publication date: February 4, 2016Inventors: Toshihiko Tomosada, Shun Nakamura
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Patent number: 9210314Abstract: In a camera unit that is capable of attaching and detaching a lens unit, a camera control unit transmits a drive command for shifting a focus lens to a position corresponding to a focal point detected by use of an evaluation value for focus adjustment generated from an imaging signal by a TVAF signal processing unit to a lens control unit. The camera control unit acquires data indicating the amount of change in image magnification from the lens apparatus when performing center shift to thereby control the focus lens so as to suppress an out-of-focus blur of an image according to the image signal in response to the amount of change in image magnification relative to the shift amount of the focus lens in the vicinity of a focal point.Type: GrantFiled: December 28, 2012Date of Patent: December 8, 2015Assignee: Canon Kabushiki KaishaInventors: Hitoshi Yasuda, Toshihiko Tomosada
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Patent number: 9191565Abstract: A lens unit L100 is removably mounted on an image pickup apparatus generating control information used for a vibration control that vibrates a correction lens L105 and moves a vibration center of the correction lens L105, includes an image pickup optical system including a magnification varying lens L102 and the correction lens L105, a storage unit storing first information indicating a relation between positions of the magnification varying lens L102 and the correction lens L105, and a lens controller performing a predetermined control in which the correction lens L105 moves in accordance with the movement of the magnification varying lens L102, and the lens controller sends information relating to the magnification varying operation to the image pickup apparatus, and overlaps the vibration control of the correction lens L105 based on the control information in accordance with the information relating to the magnification varying operation with the predetermined control.Type: GrantFiled: December 28, 2012Date of Patent: November 17, 2015Assignee: Canon Kabushiki KaishaInventors: Toshihiko Tomosada, Shun Nakamura
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Publication number: 20150323760Abstract: A focus adjustment apparatus includes an imaging unit, a focus detection unit configured to detect a focusing state based on a signal output from the imaging unit, a determination unit configured to determine whether an in-focus position is present within a predetermined range from a current position of a focus lens based on the detected focusing state, a control unit configured to perform control to correct the position of the focus lens moved by a manual operation according to a result of the determination made by the determination unit, and an acquisition unit configured to acquire from a storage unit a movement speed of the focus lens corresponding to the manual operation, wherein the control unit performs control to move the focus lens at a speed determined based on the movement speed acquired from the storage unit.Type: ApplicationFiled: May 4, 2015Publication date: November 12, 2015Inventor: Toshihiko Tomosada
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Publication number: 20150138390Abstract: An image processing apparatus includes a selection unit configured to select a main object area from among a plurality of object areas of an image in which any one of a plurality of object types is assigned to each of the object areas, a detection unit configured to detect a position and a size of each of the plurality of object areas, and a setting unit configured to set an evaluation area for obtaining an evaluation signal used for a predetermined control based on the main object area selected by the selection unit. The selection unit selects the main object area from among the plurality of object areas based on the position, size, and a priority set for each of the object types, of each of the plurality of object areas.Type: ApplicationFiled: November 20, 2014Publication date: May 21, 2015Inventor: Toshihiko Tomosada
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Publication number: 20140218564Abstract: A lens unit L100 is removably mounted on an image pickup apparatus generating control information used for a vibration control that vibrates a correction lens L105 and moves a vibration center of the correction lens L105, includes an image pickup optical system including a magnification varying lens L102 and the correction lens L105, a storage unit storing first information indicating a relation between positions of the magnification varying lens L102 and the correction lens L105, and a lens controller performing a predetermined control in which the correction lens L105 moves in accordance with the movement of the magnification varying lens L102, and the lens controller sends information relating to the magnification varying operation to the image pickup apparatus, and overlaps the vibration control of the correction lens L105 based on the control information in accordance with the information relating to the magnification varying operation with the predetermined control.Type: ApplicationFiled: December 28, 2012Publication date: August 7, 2014Applicant: Canon Kabushiki KaishaInventors: Toshihiko Tomosada, Shun Nakamura
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Patent number: 8611737Abstract: A lens driving device includes a control unit configured to control movement of a first lens to perform zooming operation and a second lens to perform focus adjustment based on information of a position of the first lens and a position of the second lens stored for each object distance, and when the first lens is on a telephoto side of a predetermined position, the control unit limits movement of the second lens to a position corresponding to a second object distance closer than the first object distance, and if a predetermined condition is satisfied after the second lens has reached a predetermined region including the position corresponding to the first object distance, the control unit permits the movement of the second lens to the position corresponding to the second object distance.Type: GrantFiled: December 15, 2011Date of Patent: December 17, 2013Assignee: Canon Kabushiki KaishaInventors: Toshihiko Tomosada, Daisuke Ishikawa
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Publication number: 20120163785Abstract: A lens driving device includes a control unit configured to control movement of a first lens to perform zooming operation and a second lens to perform focus adjustment based on information of a position of the first lens and a position of the second lens stored for each object distance, and when the first lens is on a telephoto side of a predetermined position, the control unit limits movement of the second lens to a position corresponding to a second object distance closer than the first object distance, and if a predetermined condition is satisfied after the second lens has reached a predetermined region including the position corresponding to the first object distance, the control unit permits the movement of the second lens to the position corresponding to the second object distance.Type: ApplicationFiled: December 15, 2011Publication date: June 28, 2012Applicant: CANON KABUSHIKI KAISHAInventors: Toshihiko Tomosada, Daisuke Ishikawa
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Patent number: 7764879Abstract: A control apparatus configured to control a control target in response to an operation by a user includes a first operation member configured to control the control target at a speed corresponding to an operation amount given by a user per unit time, a second operation member that is disposed in a position simultaneously operable by one and the same finger as the first operation member configured to control the control target at a predetermined speed in response to the operation by the user, and a control member configured to prioritize the operation of the first operation member over that of the second operation member when the first operation member and the second operation member are simultaneously operated.Type: GrantFiled: July 15, 2008Date of Patent: July 27, 2010Assignee: Canon Kabushiki KaishaInventor: Toshihiko Tomosada