Patents by Inventor Kenshi IMAMURA
Kenshi IMAMURA 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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Patent number: 9973676Abstract: Provided is an interchangeable lens digital camera that is capable of correcting a rolling shutter distortion in a live view image without delay in displaying the image. At the start of live view imaging, a lens controller in an interchangeable lens controls a shake detection sensor to detect the direction and amount of a shake, and produces deviation information on the basis of shake detection signals from the shake detection sensor, the deviation information indicating fluctuation in direction and amount of the shake for one frame of the live view image in the form of a parameter. The deviation information is transmitted to a body controller of a camera body through a serial communication unit, to correct the rolling shutter distortion on the basis of the deviation information.Type: GrantFiled: June 29, 2017Date of Patent: May 15, 2018Assignee: FUJIFILM CorporationInventor: Kenshi Imamura
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Patent number: 9918005Abstract: The focusing control device capable of preventing deterioration in precision of focusing control from being caused by an error in phase-difference depending on ambient temperature includes: an imaging element that outputs a pair of image signals deviated in one direction on the basis of one subject light image; a phase-difference detection section that detects a phase-difference between the pair of image signals; a temperature detection section; a correction section that corrects the in-focus position of the focus lens based on the detection phase-difference, which is the phase-difference detected by the phase-difference detection section, on the basis of the data in which the temperature, the focus lens position, and the information for in-focus position correction are associated with one another, the temperature which is detected by the temperature detection section, and the focus lens position; and a lens control section that moves the focus lens to the corrected in-focus position.Type: GrantFiled: September 1, 2017Date of Patent: March 13, 2018Assignee: FUJIFILM CorporationInventors: Fumio Nakamaru, Kenshi Imamura
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Publication number: 20170366740Abstract: The focusing control device capable of preventing deterioration in precision of focusing control from being caused by an error in phase-difference depending on ambient temperature includes: an imaging element that outputs a pair of image signals deviated in one direction on the basis of one subject light image; a phase-difference detection section that detects a phase-difference between the pair of image signals; a temperature detection section; a correction section that corrects the in-focus position of the focus lens based on the detection phase-difference, which is the phase-difference detected by the phase-difference detection section, on the basis of the data in which the temperature, the focus lens position, and the information for in-focus position correction are associated with one another, the temperature which is detected by the temperature detection section, and the focus lens position; and a lens control section that moves the focus lens to the corrected in-focus position.Type: ApplicationFiled: September 1, 2017Publication date: December 21, 2017Applicant: FUJIFILM CorporationInventors: Fumio NAKAMARU, Kenshi IMAMURA
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Publication number: 20170302843Abstract: Provided is an interchangeable lens digital camera that is capable of correcting a rolling shutter distortion in a live view image without delay in displaying the image. At the start of live view imaging, a lens controller in an interchangeable lens controls a shake detection sensor to detect the direction and amount of a shake, and produces deviation information on the basis of shake detection signals from the shake detection sensor, the deviation information indicating fluctuation in direction and amount of the shake for one frame of the live view image in the form of a parameter. The deviation information is transmitted to a body controller of a camera body through a serial communication unit, to correct the rolling shutter distortion on the basis of the deviation information.Type: ApplicationFiled: June 29, 2017Publication date: October 19, 2017Applicant: FUJIFILM CorporationInventor: Kenshi IMAMURA
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Patent number: 9794458Abstract: A camera system, a camera body, and a communication method capable of satisfactorily acquiring lens information necessary for image processing or the like for a frame of a video from an interchangeable lens are provided. Three-wire serial communication is performed in which a request signal is transmitted to the interchangeable lens in synchronization with a synchronization signal (VSYNC) of an imaging element in a video recording mode, and a response signal is received from the interchangeable lens. In a communication mode in the video recording mode, the number of transmissions of a first request signal relating to acquisition of lens information such as a focus position, a diaphragm value, and a zoom position is limited. Accordingly, communication other than communication relating to acquisition of lens information can be performed in a period of one frame.Type: GrantFiled: April 7, 2016Date of Patent: October 17, 2017Assignee: FUJIFILM CorporationInventors: Kenshi Imamura, Kenkichi Hayashi
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Publication number: 20170293106Abstract: A focusing control device includes a filter processing unit 11a which performs first filter processing selected from among a plurality of kinds of filter processing on each of a first signal group output from a plurality of phase difference detection pixels 52A and a second signal group output from a plurality of phase difference detection pixels 52B, a correlation calculation unit 11b which performs correlation calculation of the first signal group after the first filter processing and the second signal group after the first filter processing, and a lens position control unit 11c which controls a position of a focus lens based on the result of the correlation calculation. The filter processing unit 11a selects the first filter processing from among the plurality of kinds of filter processing based on subject condition information.Type: ApplicationFiled: May 9, 2017Publication date: October 12, 2017Applicant: FUJIFILM CorporationInventors: Hitoshi SAKURABU, Kenshi IMAMURA
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Patent number: 9729773Abstract: Provided is an interchangeable lens digital camera that is capable of correcting a rolling shutter distortion in a live view image without delay in displaying the image. At the start of live view imaging, a lens controller in an interchangeable lens controls a shake detection sensor to detect the direction and amount of a shake, and produces deviation information on the basis of shake detection signals from the shake detection sensor, the deviation information indicating fluctuation in direction and amount of the shake for one frame of the live view image in the form of a parameter. The deviation information is transmitted to a body controller of a camera body through a serial communication unit, to correct the rolling shutter distortion on the basis of the deviation information.Type: GrantFiled: September 15, 2015Date of Patent: August 8, 2017Assignee: FUJIFILM CorporationInventor: Kenshi Imamura
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Patent number: 9723207Abstract: Provided is an imaging device that prevents glare resulting from light that leaks out from a subject display area of a display section in an OVF mode. A finder device can be switched between the OVF mode and an EVF mode. A subject display area and an information display area are set in an EVFLCD. In the OVF mode, nothing is displayed in the subject display area of the EVFLCD, and an information image is displayed in the information display area. An EVF shutter is set such that the light transmittance of a first area, which corresponds to the subject display area, becomes a low transmittance and the light transmittance of a second area, which corresponds to the information display area, becomes a high transmittance. The first area, which is set at low transmittance, blocks light that leaks from the subject display area.Type: GrantFiled: October 6, 2016Date of Patent: August 1, 2017Assignee: FUJIFILM CorporationInventors: Tomoyuki Kawai, Shigeru Kondo, Kenshi Imamura, Kousuke Irie, Hiroyuki Oshima
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Patent number: 9699363Abstract: In a camera system including a camera body (200) and an interchangeable lens (100), the camera body includes a body-side communication unit, and a body-side control unit that transmits a request signal to the interchangeable lens via the body-side communication unit, and receives a response signal corresponding to the transmitted request signal from the interchangeable lens via the body-side communication unit, the interchangeable lens includes a lens-side communication unit, and a lens-side control unit that transmits the response signal corresponding to the received request signal to the camera body via the lens-side communication unit when receiving the request signal via the lens-side communication unit, and the lens-side control unit transmits lens information in synchronization with a frame of a video without receiving a request signal for lens information from the camera body at least in a video recording mode.Type: GrantFiled: April 8, 2016Date of Patent: July 4, 2017Assignee: FUJIFILM CorporationInventors: Kenshi Imamura, Kenkichi Hayashi
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Patent number: 9557629Abstract: An aspect of the present invention provides an interchangeable lens camera having a camera body and a lens unit that is freely attachable and detachable to the camera body. In the interchangeable lens camera, a communications unit in the camera body sends via communications terminals (MT_MOSI and MT_MISO) an INTR_BUSY control instruction that instructs whether to make notification with a busy signal (INTR_BUSY signal) for any operation out of a plurality of types of operations that can be executed, and the lens unit or camera body communications unit sets the busy signal (INTR_BUSY) to an ON state (low level) only during the period of operation of the type indicated by the INTR_BUSY control instruction.Type: GrantFiled: February 2, 2015Date of Patent: January 31, 2017Assignee: FUJIFILM CorporationInventor: Kenshi Imamura
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Publication number: 20170026579Abstract: Provided is an imaging device that prevents glare resulting from light that leaks out from a subject display area of a display section in an OVF mode. A finder device can be switched between the OVF mode and an EVF mode. A subject display area and an information display area are set in an EVFLCD. In the OVF mode, nothing is displayed in the subject display area of the EVFLCD, and an information image is displayed in the information display area. An EVF shutter is set such that the light transmittance of a first area, which corresponds to the subject display area, becomes a low transmittance and the light transmittance of a second area, which corresponds to the information display area, becomes a high transmittance. The first area, which is set at low transmittance, blocks light that leaks from the subject display area.Type: ApplicationFiled: October 6, 2016Publication date: January 26, 2017Applicant: FUJIFILM CorporationInventors: Tomoyuki KAWAI, Shigeru KONDO, Kenshi IMAMURA, Kousuke IRIE, Hiroyuki OSHIMA
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Publication number: 20170004777Abstract: This finder display device is provided with a liquid crystal panel, a backlight, and a light source driving section. The backlight has a light guide having a side near which first to sixth light sources are disposed. The light source driving section sets the first and fifth light sources as a first sub-light source group, the second and sixth light sources as a second sub-light source group, and the third and fourth light sources as a third sub-light source group, and periodically supplies driving pulses to the first to third sub-light source groups at respectively different timings. The light source driving section controls the amounts of light of the light source groups by changing the pulse widths of the driving pulses.Type: ApplicationFiled: September 19, 2016Publication date: January 5, 2017Applicant: FUJIFILM CorporationInventor: Kenshi IMAMURA
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Publication number: 20160227083Abstract: A camera system, a camera body, and a communication method capable of satisfactorily acquiring lens information necessary for image processing or the like for a frame of a video from an interchangeable lens are provided. Three-wire serial communication is performed in which a request signal is transmitted to the interchangeable lens in synchronization with a synchronization signal (VSYNC) of an imaging element in a video recording mode, and a response signal is received from the interchangeable lens. In a communication mode in the video recording mode, the number of transmissions of a first request signal relating to acquisition of lens information such as a focus position, a diaphragm value, and a zoom position is limited. Accordingly, communication other than communication relating to acquisition of lens information can be performed in a period of one frame.Type: ApplicationFiled: April 7, 2016Publication date: August 4, 2016Applicant: FUJIFILM CorporationInventors: Kenshi IMAMURA, Kenkichi HAYASHI
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Publication number: 20160227084Abstract: In a camera system including a camera body (200) and an interchangeable lens (100), the camera body includes a body-side communication unit, and a body-side control unit that transmits a request signal to the interchangeable lens via the body-side communication unit, and receives a response signal corresponding to the transmitted request signal from the interchangeable lens via the body-side communication unit, the interchangeable lens includes a lens-side communication unit, and a lens-side control unit that transmits the response signal corresponding to the received request signal to the camera body via the lens-side communication unit when receiving the request signal via the lens-side communication unit, and the lens-side control unit transmits lens information in synchronization with a frame of a video without receiving a request signal for lens information from the camera body at least in a video recording mode.Type: ApplicationFiled: April 8, 2016Publication date: August 4, 2016Applicant: FUJIFILM CorporationInventors: Kenshi IMAMURA, Kenkichi HAYASHI
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Publication number: 20160006923Abstract: Provided is an interchangeable lens digital camera that is capable of correcting a rolling shutter distortion in a live view image without delay in displaying the image. At the start of live view imaging, a lens controller in an interchangeable lens controls a shake detection sensor to detect the direction and amount of a shake, and produces deviation information on the basis of shake detection signals from the shake detection sensor, the deviation information indicating fluctuation in direction and amount of the shake for one frame of the live view image in the form of a parameter. The deviation information is transmitted to a body controller of a camera body through a serial communication unit, to correct the rolling shutter distortion on the basis of the deviation information.Type: ApplicationFiled: September 15, 2015Publication date: January 7, 2016Applicant: FUJIFILM CORPORATIONInventor: Kenshi IMAMURA
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Patent number: 9204029Abstract: An aspect of the present invention provides an interchangeable lens camera having a camera body and a lens unit that is freely attachable and detachable to the camera body. In the interchangeable lens camera, a communications unit in the camera body sends via communications terminals (MT_MOSI and MT_MISO) an INTR_BUSY control instruction that instructs whether to make notification with a busy signal (INTR_BUSY signal) for any operation out of a plurality of types of operations that can be executed, and the lens unit or camera body communications unit sets the busy signal (INTR_BUSY) to an ON state (low level) only during the period of operation of the type indicated by the INTR_BUSY control instruction.Type: GrantFiled: April 17, 2015Date of Patent: December 1, 2015Assignee: FUJIFILM CorporationInventor: Kenshi Imamura
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Patent number: 9201290Abstract: An aspect of the present invention provides an interchangeable lens camera having a camera body and a lens unit that is freely attachable and detachable to the camera body. In the interchangeable lens camera, a communications unit in the camera body sends via communications terminals (MT_MOSI and MT_MISO) an INTR_BUSY control instruction that instructs whether to make notification with a busy signal (INTR_BUSY signal) for any operation out of a plurality of types of operations that can be executed, and the lens unit or camera body communications unit sets the busy signal (INTR_BUSY) to an ON state (low level) only during the period of operation of the type indicated by the INTR_BUSY control instruction.Type: GrantFiled: April 17, 2015Date of Patent: December 1, 2015Assignee: FUJIFILM CorporationInventor: Kenshi Imamura
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Publication number: 20150227029Abstract: An aspect of the present invention provides an interchangeable lens camera having a camera body and a lens unit that is freely attachable and detachable to the camera body. In the interchangeable lens camera, a communications unit in the camera body sends via communications terminals (MT_MOSI and MT_MISO) an INTR_BUSY control instruction that instructs whether to make notification with a busy signal (INTR_BUSY signal) for any operation out of a plurality of types of operations that can be executed, and the lens unit or camera body communications unit sets the busy signal (INTR_BUSY) to an ON state (low level) only during the period of operation of the type indicated by the INTR_BUSY control instruction.Type: ApplicationFiled: April 17, 2015Publication date: August 13, 2015Applicant: FUJIFILM CORPORATIONInventor: Kenshi IMAMURA
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Publication number: 20150222804Abstract: An aspect of the present invention provides an interchangeable lens camera having a camera body and a lens unit that is freely attachable and detachable to the camera body. In the interchangeable lens camera, a communications unit in the camera body sends via communications terminals (MT_MOSI and MT_MISO) an INTR_BUSY control instruction that instructs whether to make notification with a busy signal (INTR_BUSY signal) for any operation out of a plurality of types of operations that can be executed, and the lens unit or camera body communications unit sets the busy signal (INTR_BUSY) to an ON state (low level) only during the period of operation of the type indicated by the INTR_BUSY control instruction.Type: ApplicationFiled: April 17, 2015Publication date: August 6, 2015Applicant: FUJIFILM CORPORATIONInventor: Kenshi IMAMURA
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Publication number: 20150146088Abstract: An aspect of the present invention provides an interchangeable lens camera having a camera body and a lens unit that is freely attachable and detachable to the camera body. In the interchangeable lens camera, a communications unit in the camera body sends via communications terminals (MT_MOSI and MT_MISO) an INTR_BUSY control instruction that instructs whether to make notification with a busy signal (INTR_BUSY signal) for any operation out of a plurality of types of operations that can be executed, and the lens unit or camera body communications unit sets the busy signal (INTR_BUSY) to an ON state (low level) only during the period of operation of the type indicated by the INTR_BUSY control instruction.Type: ApplicationFiled: February 2, 2015Publication date: May 28, 2015Applicant: FUJIFILM CORPORATIONInventor: Kenshi IMAMURA