Patents by Inventor Kan Takaiwa
Kan Takaiwa 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: 20240107192Abstract: A photoelectric conversion apparatus comprises a photoelectric conversion element including an avalanche photodiode for photoelectrically converting an optical image; an image generating unit configured to generate a first image based on a signal that has been acquired by the photoelectric conversion element; an acquisition unit configured to acquire first characteristic information of the photoelectric conversion element; a first correction processing unit configured to perform first correction processing for correcting linearity of the first image using the first characteristic information; and a second correction processing unit configured to perform second correction processing for performing interpolation based on the first characteristic information and information of the first image.Type: ApplicationFiled: September 14, 2023Publication date: March 28, 2024Inventors: AIHIKO NUMATA, KAN TAKAIWA
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Publication number: 20240107199Abstract: To provide a photoelectric conversion device that has an avalanche photodiode and can suppress image quality deterioration, in a photoelectric conversion device, a photoelectric conversion element including an avalanche photodiode for photoelectrically converting an optical image, an image generation unit configured to generate a first image based on a signal acquired by the photoelectric conversion element, an acquisition unit configured to acquire first characteristic information of the photoelectric conversion element, and a correction processing unit configured to perform first correction processing on the first image by using the first characteristic information are provided, and in the correction processing unit, weighting of the first correction processing is made different according to a magnitude of a pixel signal in the first image.Type: ApplicationFiled: September 14, 2023Publication date: March 28, 2024Inventors: AIHIKO NUMATA, KAN TAKAIWA
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Patent number: 11646595Abstract: A battery pack that is connectable to an electronic device is disclosed. The battery pack includes positive terminals, negative terminals, and a cutting unit. The cutting unit cuts a current that flows from a battery cell to the electronic device in a case where the current flowing from the battery cell to the electronic device exceeds a maximum current value. The battery pack further includes a control unit that changes the maximum current value based on the number of positive terminals and negative terminals that are connected to the electronic device.Type: GrantFiled: January 27, 2021Date of Patent: May 9, 2023Assignee: CANON KABUSHIKI KAISHAInventors: Takamitsu Abe, Yuki Chishima, Kan Takaiwa, Hideaki Nagano
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Publication number: 20210234392Abstract: A battery pack that is connectable to an electronic device is disclosed. The battery pack includes positive terminals, negative terminals, and a cutting unit. The cutting unit cuts a current that flows from a battery cell to the electronic device in a case where the current flowing from the battery cell to the electronic device exceeds a maximum current value. The battery pack further includes a control unit that changes the maximum current value based on the number of positive terminals and negative terminals that are connected to the electronic device.Type: ApplicationFiled: January 27, 2021Publication date: July 29, 2021Inventors: Takamitsu Abe, Yuki Chishima, Kan Takaiwa, Hideaki Nagano
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Patent number: 9661204Abstract: An image capturing apparatus comprises: a first image sensor configured to photo-electrically convert a subject image and output an image signal; a first image processing unit configured to develop a first image signal generated by the first image sensor; a second image processing unit configured to reduce a number of pixels in the first image signal and develop the image signal whose pixels have been reduced as a second image signal; a recording unit configured to record an image signal; and a display unit having a lower pixel count than the pixel count of the first image sensor, wherein in the case where an instruction to capture a still image has been made, the recording unit records the image signal developed by the first image processing unit and the display unit displays the image signal developed by the second image processing unit.Type: GrantFiled: September 4, 2015Date of Patent: May 23, 2017Assignee: Canon Kabushiki KaishaInventor: Kan Takaiwa
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Patent number: 9451145Abstract: An image capturing apparatus that uses an image sensor having pixels for capturing an image and pixels for detecting a phase difference. If, in the case where it is determined that it is necessary to restart focus detection during recording of a moving image, an opening diameter of an aperture is not an opening diameter at which phase-difference detection type AF using the pixels for detecting a phase difference can be performed, the aperture is changed to an opening diameter at which phase-difference detection type AF can be performed during focus detection. Thus, even if a photographic lens that does not support driving within a minute range is mounted, a focus detection operation suitable for shooting a moving image can be performed.Type: GrantFiled: November 18, 2011Date of Patent: September 20, 2016Assignee: Canon Kabushiki KaishaInventor: Kan Takaiwa
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Publication number: 20150381867Abstract: An image capturing apparatus comprises: a first image sensor configured to photo-electrically convert a subject image and output an image signal; a first image processing unit configured to develop a first image signal generated by the first image sensor; a second image processing unit configured to reduce a number of pixels in the first image signal and develop the image signal whose pixels have been reduced as a second image signal; a recording unit configured to record an image signal; and a display unit having a lower pixel count than the pixel count of the first image sensor, wherein in the case where an instruction to capture a still image has been made, the recording unit records the image signal developed by the first image processing unit and the display unit displays the image signal developed by the second image processing unit.Type: ApplicationFiled: September 4, 2015Publication date: December 31, 2015Inventor: Kan Takaiwa
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Patent number: 9167172Abstract: An image capture apparatus comprises an image sensor, an acquisition unit which acquires information concerning distances to objects in a plurality of areas in an image capturing area, and a control unit which controls a charge accumulation period for each of a plurality of segmented areas of the image sensor, wherein the plurality of areas for which information concerning distances to the objects are acquired by the acquisition unit respectively correspond to the plurality of segmented areas, and the control unit controls the charge accumulation periods for the respective segmented areas at the time of light emission by a light-emitting device based on the information concerning the distances to the objects in the corresponding areas.Type: GrantFiled: July 26, 2012Date of Patent: October 20, 2015Assignee: CANON KABUSHIKI KAISHAInventor: Kan Takaiwa
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Patent number: 9154681Abstract: An image capturing apparatus comprises: a first image sensor configured to photo-electrically convert a subject image and output an image signal; a first image processing unit configured to develop a first image signal generated by the first image sensor; a second image processing unit configured to reduce a number of pixels in the first image signal and develop the image signal whose pixels have been reduced as a second image signal; a recording unit configured to record an image signal; and a display unit having a lower pixel count than the pixel count of the first image sensor, wherein in the case where an instruction to capture a still image has been made, the recording unit records the image signal developed by the first image processing unit and the display unit displays the image signal developed by the second image processing unit.Type: GrantFiled: February 4, 2014Date of Patent: October 6, 2015Assignee: Canon Kabushiki KaishaInventor: Kan Takaiwa
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Publication number: 20140232911Abstract: An image capturing apparatus comprises: a first image sensor configured to photo-electrically convert a subject image and output an image signal; a first image processing unit configured to develop a first image signal generated by the first image sensor; a second image processing unit configured to reduce a number of pixels in the first image signal and develop the image signal whose pixels have been reduced as a second image signal; a recording unit configured to record an image signal; and a display unit having a lower pixel count than the pixel count of the first image sensor, wherein in the case where an instruction to capture a still image has been made, the recording unit records the image signal developed by the first image processing unit and the display unit displays the image signal developed by the second image processing unit.Type: ApplicationFiled: February 4, 2014Publication date: August 21, 2014Applicant: CANON KABUSHIKI KAISHAInventor: Kan Takaiwa
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Publication number: 20140002682Abstract: An imaging apparatus includes a registration unit configured to register an ID tag, a detection unit configured to detect an ID tag within a detection area and a determination unit configured to determine if the ID tag detected by the detection unit is registered. The imaging apparatus further includes an operation member configured to execute a predetermined operation, and a control unit configured to prevent execution of the predetermined operation even if the operation member is operated, in cases where the ID tag detected by the detection unit is not registered in the registration unit.Type: ApplicationFiled: September 5, 2013Publication date: January 2, 2014Applicant: CANON KABUSHIKI KAISHAInventor: Kan Takaiwa
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Publication number: 20130057740Abstract: An image capture apparatus comprises an image sensor, an acquisition unit which acquires information concerning distances to objects in a plurality of areas in an image capturing area, and a control unit which controls a charge accumulation period for each of a plurality of segmented areas of the image sensor, wherein the plurality of areas for which information concerning distances to the objects are acquired by the acquisition unit respectively correspond to the plurality of segmented areas, and the control unit controls the charge accumulation periods for the respective segmented areas at the time of light emission by a light-emitting device based on the information concerning the distances to the objects in the corresponding areas.Type: ApplicationFiled: July 26, 2012Publication date: March 7, 2013Applicant: CANON KABUSHIKI KAISHAInventor: Kan Takaiwa
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Publication number: 20120307090Abstract: An imaging apparatus includes a registration unit configured to register an ID tag, a detection unit configured to detect an ID tag within a detection area and a determination unit configured to determine if the ID tag detected by the detection unit is registered. The imaging apparatus further includes a operation member configured to execute a predetermined operation, and a control unit configured to prevent execution of the predetermined operation even if the operation member is operated, in cases where the ID tag detected by the detection unit is not registered in the registration unit.Type: ApplicationFiled: August 16, 2012Publication date: December 6, 2012Applicant: CANON KABUSHIKI KAISHAInventor: Kan Takaiwa
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Patent number: 8269846Abstract: An imaging apparatus includes a registration unit configured to register an ID tag, a detection unit configured to detect an ID tag within a detection area and a determination unit configured to determine if the ID tag detected by the detection unit is registered. The imaging apparatus further includes a operation member configured to execute a predetermined operation, and a control unit configured to prevent execution of the predetermined operation even if the operation member is operated, in cases where the ID tag detected by the detection unit is not registered in the registration unit.Type: GrantFiled: June 19, 2006Date of Patent: September 18, 2012Assignee: Canon Kabushiki KaishaInventor: Kan Takaiwa
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Patent number: 8264561Abstract: An image pickup apparatus detachably connecting to a light emitting device. Still image shooting is performed during moving image recording being paused according to a still image shooting instruction received during the moving image recording being performed and the moving image recording is resumed after performing the still image shooting. Information about charge control of the connected light emitting device is acquired. Light emitting of the connected light emitting device involved with the still image shooting is prohibited based on the acquired information about the charge control.Type: GrantFiled: June 4, 2010Date of Patent: September 11, 2012Assignee: Canon Kabushiki KaishaInventor: Kan Takaiwa
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Publication number: 20120133821Abstract: An image capturing apparatus that uses an image sensor having pixels for capturing an image and pixels for detecting a phase difference. If, in the case where it is determined that it is necessary to restart focus detection during recording of a moving image, an opening diameter of an aperture is not an opening diameter at which phase-difference detection type AF using the pixels for detecting a phase difference can be performed, the aperture is changed to an opening diameter at which phase-difference detection type AF can be performed during focus detection. Thus, even if a photographic lens that does not support driving within a minute range is mounted, a focus detection operation suitable for shooting a moving image can be performed.Type: ApplicationFiled: November 18, 2011Publication date: May 31, 2012Applicant: CANON KABUSHIKI KAISHAInventor: Kan Takaiwa
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Patent number: 8175447Abstract: The image pickup apparatus includes an image pickup element including first pixels for photoelectrically converting an object image formed by a light flux from an image taking optical system and second pixels for photoelectrically converting optical images formed by light fluxes divided form the light flux from the image taking optical system, and a controller performing focus detection based on a phase difference of the optical images, control of an aperture stop included in the image taking optical system and an image capturing operation for generating a captured image by using signals obtained from the first pixels. The controller increases, when an image capturing aperture size of the aperture stop is smaller than a focus detecting aperture size in a case of performing the focus detection between the image capturing operations in continuous image capturing, the aperture size to the focus detecting aperture size in the focus detection.Type: GrantFiled: July 12, 2010Date of Patent: May 8, 2012Assignee: Canon Kabushiki KaishaInventor: Kan Takaiwa
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Publication number: 20110013894Abstract: The image pickup apparatus includes an image pickup element including first pixels for photoelectrically converting an object image formed by a light flux from an image taking optical system and second pixels for photoelectrically converting optical images formed by light fluxes divided form the light flux from the image taking optical system, and a controller performing focus detection based on a phase difference of the optical images, control of an aperture stop included in the image taking optical system and an image capturing operation for generating a captured image by using signals obtained from the first pixels. The controller increases, when an image capturing aperture size of the aperture stop is smaller than a focus detecting aperture size in a case of performing the focus detection between the image capturing operations in continuous image capturing, the aperture size to the focus detecting aperture size in the focus detection.Type: ApplicationFiled: July 12, 2010Publication date: January 20, 2011Applicant: CANON KABUSHIKI KAISHAInventor: Kan Takaiwa
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Publication number: 20100309326Abstract: An image pickup apparatus detachably connecting to a light emitting device. Still image shooting is performed during moving image recording being paused according to a still image shooting instruction received during the moving image recording being performed and the moving image recording is resumed after performing the still image shooting. Information about charge control of the connected light emitting device is acquired. Light emitting of the connected light emitting device involved with the still image shooting is prohibited based on the acquired information about the charge control.Type: ApplicationFiled: June 4, 2010Publication date: December 9, 2010Applicant: CANON KABUSHIKI KAISHAInventor: Kan Takaiwa
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Patent number: 7646416Abstract: An image pickup apparatus enters an enlargement display mode (in which enlargement display processing of enlarging and displaying part of reduced image data for normal display is performed) from any other image display mode. The image pickup apparatus also performs enlargement display processing of enlarging and displaying part of reduced image data for normal display at a high speed. Furthermore, the image pickup apparatus starts enlargement display processing of enlarging and displaying part of reduced image data for normal display from the portion stored in the previous enlargement display processing.Type: GrantFiled: September 19, 2003Date of Patent: January 12, 2010Assignee: Canon Kabushiki KaishaInventors: Kan Takaiwa, Yuji Yamamoto, Emi Hitosuga