Patents by Inventor Tomoomi Ito
Tomoomi Ito 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: 20230185163Abstract: Provided are a device and a method by which high-precision auto focus (AF) processing can be performed while a focus lens or a zoom lens is being operated. An interchangeable lens acquires position information regarding a focus lens and a zoom lens at a predetermined time interval during an exposure time period of detection information acquisition pixels for use in calculation of a defocus amount (DF), and outputs the position information to an imaging device. The imaging device calculates the defocus amount (DF) by using information regarding the detection information acquisition pixels, calculates a reference focus lens position (Ref_fc) by using points, on a cam curve, corresponding to the inputted lens position information, calculates a target focus lens position (Tgt_fc) in an in-focus position, from the reference focus lens position (Ref_fc) and the defocus amount (DF), and outputs the target focus lens position (Tgt_fc) to the interchangeable lens.Type: ApplicationFiled: November 4, 2022Publication date: June 15, 2023Inventors: Tomoomi Ito, Yoshinori Yamatsuta, Shinichi Fujii
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Patent number: 11523065Abstract: To suppress a difference in brightness and darkness in a captured image caused by a difference in an exposure start time by a rolling shutter even if the exposure period is not changed. Provided is an imaging device including a gain setting unit configured to set a gain for each line in which a plurality of pixels is arrayed, the plurality of pixels being two-dimensionally arranged in a matrix in an image sensor, on the basis of diaphragm drive information regarding a diaphragm drive locus representing a time-series change in a diaphragm value. Thereby, the difference in brightness and darkness in a captured image caused by the difference in an exposure start time by a rolling shutter can be suppressed even if the exposure period is not changed.Type: GrantFiled: April 2, 2019Date of Patent: December 6, 2022Assignee: SONY CORPORATIONInventors: Tomoomi Ito, Nobuhiro Doi, Syohei Uchida, Yusuke Mimura
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Patent number: 11493829Abstract: Provided are a device and a method by which high-precision auto focus (AF) processing can be performed while a focus lens or a zoom lens is being operated. An interchangeable lens acquires position information regarding a focus lens and a zoom lens at a predetermined time interval during an exposure time period of detection information acquisition pixels for use in calculation of a defocus amount (DF), and outputs the position information to an imaging device. The imaging device calculates the defocus amount (DF) by using information regarding the detection information acquisition pixels, calculates a reference focus lens position (Ref_fc) by using points, on a cam curve, corresponding to the inputted lens position information, calculates a target focus lens position (Tgt_fc) in an in-focus position, from the reference focus lens position (Ref_fc) and the defocus amount (DF), and outputs the target focus lens position (Tgt_fc) to the interchangeable lens.Type: GrantFiled: April 25, 2018Date of Patent: November 8, 2022Assignee: Sony Group CorporationInventors: Tomoomi Ito, Yoshinori Yamatsuta, Shinichi Fujii
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Patent number: 11221462Abstract: There is provided a lens unit equipped with multiple focus lenses provided inside a lens barrel, multiple actuators corresponding to the respective multiple focus lenses and configured to move each of the multiple focus lenses inside the lens barrel, and a control circuit configured to control movement of the multiple focus lenses according to different rules between a case of a position of each of the multiple focus lenses being inside a designated range of satisfactory optical performance, and a case of being outside the range.Type: GrantFiled: January 21, 2020Date of Patent: January 11, 2022Assignee: SONY CORPORATIONInventors: Tomoomi Ito, Rui Chen, Makoto Kanai, Fumikazu Kanetaka, Naoki Miyagawa
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Publication number: 20210218873Abstract: To suppress a difference in brightness and darkness in a captured image caused by a difference in an exposure start time by a rolling shutter even if the exposure period is not changed. Provided is an imaging device including a gain setting unit configured to set a gain for each line in which a plurality of pixels is arrayed, the plurality of pixels being two-dimensionally arranged in a matrix in an image sensor, on the basis of diaphragm drive information regarding a diaphragm drive locus representing a time-series change in a diaphragm value. Thereby, the difference in brightness and darkness in a captured image caused by the difference in an exposure start time by a rolling shutter can be suppressed even if the exposure period is not changed.Type: ApplicationFiled: April 2, 2019Publication date: July 15, 2021Inventors: TOMOOMI ITO, NOBUHIRO DOI, SYOHEI UCHIDA, YUSUKE MIMURA
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Patent number: 10698296Abstract: Provided is an interchangeable lens including: a lens position detection unit configured to detect a position of a lens; a motor configured to move a movable lens frame to which the lens is fixed; a driving state detection unit configured to detect a driving state of the motor; and a control unit configured to decide a driving speed of the motor based on a difference between a target speed, which is based on a difference between a target position of the lens acquired from an imaging device and the position of the lens detected by the lens position detection unit, and a speed according to the driving state detected by the driving state detection unit.Type: GrantFiled: May 20, 2016Date of Patent: June 30, 2020Assignee: Sony CorporationInventors: Tomoomi Ito, Toru Katagiri
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Publication number: 20200174342Abstract: Provided are a device and a method by which high-precision auto focus (AF) processing can be performed while a focus lens or a zoom lens is being operated. An interchangeable lens acquires position information regarding a focus lens and a zoom lens at a predetermined time interval during an exposure time period of detection information acquisition pixels for use in calculation of a defocus amount (DF), and outputs the position information to an imaging device. The imaging device calculates the defocus amount (DF) by using information regarding the detection information acquisition pixels, calculates a reference focus lens position (Ref_fc) by using points, on a cam curve, corresponding to the inputted lens position information, calculates a target focus lens position (Tgt_fc) in an in-focus position, from the reference focus lens position (Ref_fc) and the defocus amount (DF), and outputs the target focus lens position (Tgt_fc) to the interchangeable lens.Type: ApplicationFiled: April 25, 2018Publication date: June 4, 2020Inventors: Tomoomi Ito, Yoshinori Yamatsuta, Shinichi Fujii
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Publication number: 20200162651Abstract: There is provided a lens unit equipped with multiple focus lenses provided inside a lens barrel, multiple actuators corresponding to the respective multiple focus lenses and configured to move each of the multiple focus lenses inside the lens barrel, and a control circuit configured to control movement of the multiple focus lenses according to different rules between a case of a position of each of the multiple focus lenses being inside a designated range of satisfactory optical performance, and a case of being outside the range.Type: ApplicationFiled: January 21, 2020Publication date: May 21, 2020Applicant: SONY CORPORATIONInventors: Tomoomi Ito, Rui Chen, Makoto Kanai, Fumikazu Kanetaka, Naoki Miyagawa
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Patent number: 10567631Abstract: There is provided a lens unit equipped with multiple focus lenses provided inside a lens barrel, multiple actuators corresponding to the respective multiple focus lenses and configured to move each of the multiple focus lenses inside the lens barrel, and a control circuit configured to control movement of the multiple focus lenses according to different rules between a case of a position of each of the multiple focus lenses being inside a designated range of satisfactory optical performance, and a case of being outside the range.Type: GrantFiled: September 11, 2017Date of Patent: February 18, 2020Assignee: SONY CORPORATIONInventors: Tomoomi Ito, Rui Chen, Makoto Kanai, Fumikazu Kanetaka, Naoki Miyagawa
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Publication number: 20180013942Abstract: There is provided a lens unit equipped with multiple focus lenses provided inside a lens barrel, multiple actuators corresponding to the respective multiple focus lenses and configured to move each of the multiple focus lenses inside the lens barrel, and a control circuit configured to control movement of the multiple focus lenses according to different rules between a case of a position of each of the multiple focus lenses being inside a designated range of satisfactory optical performance, and a case of being outside the range.Type: ApplicationFiled: September 11, 2017Publication date: January 11, 2018Applicant: Sony CorporationInventors: Tomoomi Ito, Rui Chen, Makoto Kanai, Fumikazu Kanetaka, Naoki Miyagawa
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Patent number: 9813603Abstract: There is provided a lens unit equipped with multiple focus lenses provided inside a lens barrel, multiple actuators corresponding to the respective multiple focus lenses and configured to move each of the multiple focus lenses inside the lens barrel, and a control circuit configured to control movement of the multiple focus lenses according to different rules between a case of a position of each of the multiple focus lenses being inside a designated range of satisfactory optical performance, and a case of being outside the range.Type: GrantFiled: April 14, 2016Date of Patent: November 7, 2017Assignee: SONY CORPORATIONInventors: Tomoomi Ito, Rui Chen, Makoto Kanai, Fumikazu Kanetaka, Naoki Miyagawa
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Publication number: 20170223246Abstract: There is provided a lens unit equipped with multiple focus lenses provided inside a lens barrel, multiple actuators corresponding to the respective multiple focus lenses and configured to move each of the multiple focus lenses inside the lens barrel, and a control circuit configured to control movement of the multiple focus lenses according to different rules between a case of a position of each of the multiple focus lenses being inside a designated range of satisfactory optical performance, and a case of being outside the range.Type: ApplicationFiled: April 14, 2016Publication date: August 3, 2017Applicant: SONY CORPORATIONInventors: Tomoomi ITO, Rui CHEN, Makoto KANAI, Fumikazu KANETAKA, Naoki MIYAGAWA
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Publication number: 20170219913Abstract: Provided is an interchangeable lens including: a lens position detection unit configured to detect a position of a lens; a motor configured to move a movable lens frame to which the lens is fixed; a driving state detection unit configured to detect a driving state of the motor; and a control unit configured to decide a driving speed of the motor based on a difference between a target speed, which is based on a difference between a target position of the lens acquired from an imaging device and the position of the lens detected by the lens position detection unit, and a speed according to the driving state detected by the driving state detection unit.Type: ApplicationFiled: May 20, 2016Publication date: August 3, 2017Applicant: Sony CorporationInventors: Tomoomi Ito, Toru Katagiri
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Patent number: 7822334Abstract: An imaging device includes an imaging unit that obtains an image signal relating to a subject, a driving unit that drives a focus lens, a first detecting unit that performs focus detection based on a contrast detection method to detect an in-focus position of the focus lens, a second detecting unit that performs focus detection based on a phase difference detection method, while the focus lens is being driven toward the in-focus position, to detect a provisional in-focus position of the focus lens, and an in-focus control unit that controls the driving unit to drive the focus lens to pass through the provisional in-focus position and then return to the in-focus position. Focus detection information is obtained at least for a given range of positions, and is stored in a predetermined storage unit. The in-focus position is detected based on the stored focus detection information.Type: GrantFiled: August 25, 2008Date of Patent: October 26, 2010Assignee: Sony CorporationInventors: Riichi Ono, Shinichi Fujii, Tomoomi Ito
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Publication number: 20090067828Abstract: An imaging device includes an imaging unit that obtains an image signal relating to a subject, a driving unit that drives a focus lens, a first detecting unit that performs focus detection based on a contrast detection method to detect an in-focus position of the focus lens, a second detecting unit that performs focus detection based on a phase difference detection method, while the focus lens is being driven toward the in-focus position, to detect a provisional in-focus position of the focus lens, and an in-focus control unit that controls the driving unit to drive the focus lens to pass through the provisional in-focus position and then return to the in-focus position. Focus detection information is obtained at least for a given range of positions, and is stored in a predetermined storage unit. The in-focus position is detected based on the stored focus detection information.Type: ApplicationFiled: August 25, 2008Publication date: March 12, 2009Applicant: Sony CorporationInventors: Riichi ONO, Shinichi Fujii, Tomoomi Ito