Patents by Inventor Yuji Tsuda
Yuji Tsuda 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).
-
Publication number: 20140055665Abstract: An imaging apparatus includes a sensor configured to photoelectrically convert light from an object to output a signal, a selection unit configured to select one of a first exposure control mode and a second exposure control mode having an exposure changing amount per unit time larger than that of the first exposure control mode, and a controller configured to perform control to transmit diaphragm control information generated based on the output signal from the sensor, first information, and second information to a connected lens unit, wherein the first information is about the exposure control mode selected by the selection unit, and the second information is speed information of a diaphragm unit corresponding to the lens unit.Type: ApplicationFiled: August 22, 2013Publication date: February 27, 2014Applicant: CANON KABUSHIKI KAISHAInventor: Yuji Tsuda
-
Publication number: 20140028871Abstract: An image capturing apparatus for capturing an object and generate an image, displaying the image, performing signal processing for the image, and accepting an input from a user, wherein the image is displayed with a vectorscope superimposed thereon, the vectorscope indicating a distribution of color components included in the image based on a hue and a color density and an index for specifying a range of a skin color region in the image, a display position of the index on the vectorscope is specified based on the hue and the color density values, and a size of the index is specified by the range of the skin color region value, and processing is performed for decreasing a detail level of an image signal of the image having a color component included in the index.Type: ApplicationFiled: July 17, 2013Publication date: January 30, 2014Inventor: Yuji Tsuda
-
Patent number: 8441570Abstract: An image pickup apparatus and a lens apparatus capable of photographing high-grade still images even where an interlace type image pickup element is used are to be provided. When an instruction to photograph a still image is entered, a camera microcomputer generates a timing to intercept light coming incident on a lens according to the aperture value of an iris, and transmits this timing to a lens microcomputer. The lens microcomputer supplies a control signal to an aperture control circuit according to the received timing, and a mechanical shutter is caused to operate as the aperture control circuit closes the iris at high speed.Type: GrantFiled: September 19, 2005Date of Patent: May 14, 2013Assignee: Canon Kabushiki KaishaInventor: Yuji Tsuda
-
Patent number: 8427554Abstract: An imaging apparatus includes an imaging unit configured to perform photoelectric conversion of an optical image, an optical zoom unit configured to perform optical magnification variation in response to a zooming operation, an electronic zoom unit configured to perform electronic magnification variation on a signal output from the imaging unit, and a controller configured to operate the electronic zoom unit together with the optical zoom unit in a first zoom range in response to the zooming operation, to operate the optical zoom unit without operating the electronic zoom unit in response to the zooming operation in a second zoom range, which is closer to a telephoto side than the first zoom range, and to operate the electronic zoom unit together with the optical zoom unit in response to the zooming operation in a third zoom range, which is closer to the telephoto side than the second zoom range.Type: GrantFiled: April 24, 2012Date of Patent: April 23, 2013Assignee: Canon Kabushiki KaishaInventor: Yuji Tsuda
-
Publication number: 20130010156Abstract: The present invention is directed to performing imaging processing for dividing a video signal obtained by an imaging unit into a plurality of areas, and detecting in parallel respective evaluation values of video signals of the plurality of areas, reducing the video signal obtained by the imaging unit, detecting an evaluation value of the reduced video signal, and controlling an operation of the imaging apparatus using either the evaluation values of video signals of the plurality of areas or the evaluation value of the reduced video signal.Type: ApplicationFiled: June 29, 2012Publication date: January 10, 2013Applicant: CANON KABUSHIKI KAISHAInventor: Yuji Tsuda
-
Patent number: 8289419Abstract: An imaging apparatus includes an imaging unit configured to perform photoelectric conversion of an optical image, an optical zoom unit configured to perform optical magnification variation in response to a zooming operation, an electronic zoom unit configured to perform electronic magnification variation on a signal output from the imaging unit, and a controller configured to operate the electronic zoom unit together with the optical zoom unit in a first zoom range in response to the zooming operation, to operate the optical zoom unit without operating the electronic zoom unit in response to the zooming operation in a second zoom range, which is closer to a telephoto side than the first zoom range, and to operate the electronic zoom unit together with the optical zoom unit in response to the zooming operation in a third zoom range, which is closer to the telephoto side than the second zoom range.Type: GrantFiled: December 22, 2008Date of Patent: October 16, 2012Assignee: Canon Kabushiki KaishaInventor: Yuji Tsuda
-
Publication number: 20120206625Abstract: An imaging apparatus includes an imaging unit configured to perform photoelectric conversion of an optical image, an optical zoom unit configured to perform optical magnification variation in response to a zooming operation, an electronic zoom unit configured to perform electronic magnification variation on a signal output from the imaging unit, and a controller configured to operate the electronic zoom unit together with the optical zoom unit in a first zoom range in response to the zooming operation, to operate the optical zoom unit without operating the electronic zoom unit in response to the zooming operation in a second zoom range, which is closer to a telephoto side than the first zoom range, and to operate the electronic zoom unit together with the optical zoom unit in response to the zooming operation in a third zoom range, which is closer to the telephoto side than the second zoom range.Type: ApplicationFiled: April 24, 2012Publication date: August 16, 2012Applicant: CANON KABUSHIKI KAISHAInventor: Yuji Tsuda
-
Patent number: 8003181Abstract: An anticorrosion sleeve including a resin sleeve and a metal sleeve tightly received in the resin sleeve. The metal sleeve has a gradually expanding outer diameter thereof toward one circular edge thereof in a tapered shape in cross section so that the metal sleeve expands the resin sleeve in diameter when the metal sleeve is inserted into the resin sleeve. The resin sleeve includes a large-diameter portion and a small-diameter portion. The metal sleeve includes an engagement end portion, an intermediate portion, and a tapered end portion in that order. The outer circumference of the engagement end portion of the metal sleeve is engaged beforehand with a step between the inner circumferences of the large-diameter portion and the small-diameter portion of the resin sleeve.Type: GrantFiled: June 29, 2005Date of Patent: August 23, 2011Assignee: Tabuchi Co., Ltd.Inventors: Kazuo Ishikawa, Yuji Tsuda
-
Publication number: 20100158474Abstract: An image processing apparatus includes a generation unit configured to continuously generate still images from a moving image which is being read out from a recording medium and played back, a detection unit configured to detect a change of a playback state of the moving image which is being read out from the recording medium and played back, and a control unit configured to control an operation of the generation unit. The control unit performs control to stop generating of the still image when the detection unit detects that the playback state of the moving image during playback is changed.Type: ApplicationFiled: December 11, 2009Publication date: June 24, 2010Applicant: CANON KABUSHIKI KAISHAInventor: Yuji Tsuda
-
Patent number: 7736073Abstract: An image-capturing apparatus adapted to receive a detachable lens apparatus having a mechanical shutter includes an image-capturing unit configured to capture an image of a subject, a communication unit configured to enable communication with the lens apparatus, and a control unit configured to perform an image generating operation using a video signal supplied from the image-capturing unit. The control unit controls timing of the image generating operations performed together with a plurality of opening and closing operations of the mechanical shutter on the basis of information received via the communication unit.Type: GrantFiled: September 5, 2006Date of Patent: June 15, 2010Assignee: Canon Kabushiki KaishaInventor: Yuji Tsuda
-
Patent number: 7633546Abstract: An image capture apparatus can immediately start image recording capable of preventing the deterioration of image quality, even when brightness of an object immediately after the activation of a power source is higher than a reference value. A filter control circuit automatically inserts a filter for reducing the transmitting light amount of an image capture optical system into the optical path of the optical system regardless of the state of a switch for inserting or withdrawing the filter, when the brightness of the object is higher than the reference value immediately after the activation of the power source. Moreover, the filer control circuit automatically withdraws the filter from the optical path regardless of the state of the switch, when the brightness of the object is lower than the reference value immediately after the activation of the power source.Type: GrantFiled: February 13, 2006Date of Patent: December 15, 2009Assignee: Canon Kabushiki KaishaInventor: Yuji Tsuda
-
Patent number: 7557857Abstract: In a quantity-of-light adjusting apparatus having an iris and an ND filter which limit incident light, a control method for the quantity-of-light adjusting apparatus, and a computer program product providing a control program for the quantity-of-light adjusting apparatus, a state of limitation of the incident light by the iris is changed at a first changing speed, and, when a state of limitation of the incident light by the ND filter is changed, the state of limitation of the incident light by the iris is changed at a second changing speed different from the first changing speed.Type: GrantFiled: June 7, 2005Date of Patent: July 7, 2009Assignee: Canon Kabushiki KaishaInventors: Yuji Tsuda, Kunihiko Yamada
-
Publication number: 20090167899Abstract: An imaging apparatus includes an imaging unit configured to perform photoelectric conversion of an optical image, an optical zoom unit configured to perform optical magnification variation in response to a zooming operation, an electronic zoom unit configured to perform electronic magnification variation on a signal output from the imaging unit, and a controller configured to operate the electronic zoom unit together with the optical zoom unit in a first zoom range in response to the zooming operation, to operate the optical zoom unit without operating the electronic zoom unit in response to the zooming operation in a second zoom range, which is closer to a telephoto side than the first zoom range, and to operate the electronic zoom unit together with the optical zoom unit in response to the zooming operation in a third zoom range, which is closer to the telephoto side than the second zoom range.Type: ApplicationFiled: December 22, 2008Publication date: July 2, 2009Applicant: CANON KABUSHIKI KAISHAInventor: Yuji Tsuda
-
Patent number: 7522947Abstract: An image display apparatus includes a first casing having an operation unit, a second casing having a display unit capable of displaying a plurality of images received from different input sources, and a connection unit configured to interconnect the first and second casings and to allow the second casing to rotate relative to the first casing. Images to be displayed on the display unit are switched responsive to a rotated state of the second casing relative to the first casing.Type: GrantFiled: November 10, 2005Date of Patent: April 21, 2009Assignee: Canon Kabushiki KaishaInventor: Yuji Tsuda
-
Patent number: 7488020Abstract: A workpiece-gripping chuck includes a converting mechanism provided in a body, which converts a driving force from a rotary driving source into a displacement in the axial direction. First and second pistons of the converting mechanism are displaced in the axial direction under a rotary action of a pinion gear. Further, the first and second pistons are displaced in the axial direction, respectively, by supplying a pressure fluid from a first or second port formed in the body. A workpiece may be positioned by means of a pair of gripping members under the driving action of the rotary driving source, and the workpiece is further gripped by the gripping members by applying a pressing force of the pressure fluid in addition to the driving force.Type: GrantFiled: February 9, 2006Date of Patent: February 10, 2009Assignee: SMC Kabushiki KaishaInventors: Motohiro Sotome, Yuji Tsuda
-
Publication number: 20080100730Abstract: An imaging apparatus includes an imaging unit, a first image generating unit configured to generate a still image having one frame based on two field images obtained by light exposure at the same timing, a second image generating unit configured to generate a still image having one frame based on two field images obtained by light exposure at different timings; and a switching unit configured to switch to either one of the first image generating unit and the second image generating unit, depending on whether a detachably mounted lens apparatus includes a shutter unit that interrupts the exposure of the imaging unit.Type: ApplicationFiled: October 29, 2007Publication date: May 1, 2008Applicant: CANON KABUSHIKI KAISHAInventor: Yuji Tsuda
-
Publication number: 20070058971Abstract: An image-capturing apparatus adapted to receive a detachable lens apparatus having a mechanical shutter includes an image-capturing unit configured to capture an image of a subject, a communication unit configured to enable communication with the lens apparatus, and a control unit configured to perform an image generating operation using a video signal supplied from the image-capturing unit. The control unit controls timing of the image generating operations performed together with a plurality of opening and closing operations of the mechanical shutter on the basis of information received via the communication unit.Type: ApplicationFiled: September 5, 2006Publication date: March 15, 2007Applicant: CANON KABUSHIKI KAISHAInventor: Yuji Tsuda
-
Publication number: 20060192884Abstract: An image capture apparatus can immediately start image recording capable of preventing the deterioration of image quality, even when brightness of an object immediately after the activation of a power source is higher than a reference value. A filter control circuit automatically inserts a filter for reducing the transmitting light amount of an image capture optical system into the optical path of the optical system regardless of the state of a switch for inserting or withdrawing the filter, when the brightness of the object is higher than the reference value immediately after the activation of the power source. Moreover, the filer control circuit automatically withdraws the filter from the optical path regardless of the state of the switch, when the brightness of the object is lower than the reference value immediately after the activation of the power source.Type: ApplicationFiled: February 13, 2006Publication date: August 31, 2006Applicant: CANON KABUSHIKI KAISHAInventor: Yuji Tsuda
-
Publication number: 20060175852Abstract: A workpiece-gripping chuck includes a converting mechanism provided in a body, which converts a driving force from a rotary driving source into a displacement in the axial direction. First and second pistons of the converting mechanism are displaced in the axial direction under a rotary action of a pinion gear. Further, the first and second pistons are displaced in the axial direction, respectively, by supplying a pressure fluid from a first or second port formed in the body. A workpiece may be positioned by means of a pair of gripping members under the driving action of the rotary driving source, and the workpiece is further gripped by the gripping members by applying a pressing force of the pressure fluid in addition to the driving force.Type: ApplicationFiled: February 9, 2006Publication date: August 10, 2006Applicant: SMC Kabushiki KaishaInventors: Motohiro Sotome, Yuji Tsuda
-
Publication number: 20060175095Abstract: In a boring machine, rotation of a motor is transferred to a pipe spindle and a shaft, a cutting edge feeding mechanism arranged side by side with the pipe spindle moves the shaft toward a workpiece and a cutting edge attached to an end of the shaft drills a hole in the workpiece. The cutting edge feeding mechanism slidably but non-rotatably supports a chain holder around an outer circumference of the pipe spindle. A sprocket wrapped around by a chain is rotated by a handle to move the shaft. The radius of rotation of the handle is reduced to slowly move the shaft. The maximum torque of the motor rotating the shaft is controlled. The number of cutting edges falls within a range from six to eight.Type: ApplicationFiled: January 26, 2006Publication date: August 10, 2006Inventors: Yuji Tsuda, Yasushige Otani