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).
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Publication number: 20060103626Abstract: 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: ApplicationFiled: November 10, 2005Publication date: May 18, 2006Applicant: Canon Kabushiki KaishaInventor: Yuji Tsuda
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Publication number: 20060066747Abstract: 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: ApplicationFiled: September 19, 2005Publication date: March 30, 2006Applicant: CANON KABUSHIKI KAISHAInventor: Yuji Tsuda
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Publication number: 20050287327Abstract: 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: ApplicationFiled: June 29, 2005Publication date: December 29, 2005Inventors: Kazuo Ishikawa, Yuji Tsuda
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Publication number: 20050225662Abstract: 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: ApplicationFiled: June 7, 2005Publication date: October 13, 2005Inventors: Yuji Tsuda, Kunihiko Yamada
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Patent number: 6930723Abstract: 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: July 11, 2000Date of Patent: August 16, 2005Assignee: Canon Kabushiki KaishaInventors: Yuji Tsuda, Kunihiko Yamada
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Patent number: 6630960Abstract: An image pickup device capable of exposure control utilizing the iris aperture, shutter speed and gain as three control parameters, comprising means for setting a photometry area in the image frame; means for setting an input parameter as a reference for evaluation, based on the luminance information in an image signal obtained from the photometry means; means for determining the values of the three control parameters for exposure control, according to the value of the input parameter; switch means for switching, according to the phototaking mode, a program setting the control caharacteristics of each control parameter as a function of the input parameter; and photometry area switch means for switching the set state of the photometry area in the image frame, in linkage with the switching operation of the switch means, wherein the phototaking mode is switched according to the phototaking conditions, thereby controlling the parameters and the light metering area according to a program matching the phototaking mType: GrantFiled: May 13, 1998Date of Patent: October 7, 2003Assignee: Canon Kabushiki KaishaInventors: Koji Takahashi, Kenji Kyuma, Kyoji Tamura, Yuji Tsuda
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Publication number: 20020080247Abstract: An image pickup device capable of exposure control utilizing the iris aperture, shutter speed and gain as three control parameters, comprising means for setting a photometry area in the image frame; means for setting an input parameter as a reference for evaluation, based on the luminance information in an image signal obtained from the photometry means; means for determining the values of the three control parameters for exposure control, according to the value of the input parameter; switch means for switching, according to the phototaking mode, a program setting the control caharacteristics of each control parameter as a function of the input parameter; and photometry area switch means for switching the set state of the photometry area in the image frame, in linkage with the switching operation of the switch means, wherein the phototaking mode is switched according to the phototaking conditions, thereby controlling the parameters and the light metering area according to a program matching the phototaking mType: ApplicationFiled: May 13, 1998Publication date: June 27, 2002Inventors: KOJI TAKAHASHI, KENJI KYUMA, KYOJI TAMURA, YUJI TSUDA
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Patent number: 6176438Abstract: A suck back valve comprises an ON/OFF valve, a suck back mechanism, a first sensor for detecting a displacement amount of a first diaphragm of the ON/OFF valve, and a second sensor for detecting a displacement amount of a second diaphragm corresponding to a suction amount of a coating liquid. The suck back valve further comprises a control unit for feedback-controlling the valve displacement speed of the ON/OFF valve and the suction amount of the coating liquid on the basis of detection signals obtained by the first sensor and the second sensor respectively.Type: GrantFiled: August 30, 1999Date of Patent: January 23, 2001Assignee: SMC Kabushiki KaishaInventors: Akio Sato, Tetsuro Maruyama, Yuji Tsuda
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Patent number: 6119721Abstract: An electropneumatic regulator system, which has an electropneumatic regulator for controlling a pressure and a flow rate of a fluid supplied from a fluid source on the basis of a level of an input signal, comprises a communication unit for making communication with a master station, and a control unit for controlling the electropneumatic regulator in response to at least the contents of communication data received by the communication unit. Accordingly, it is possible to collectively control one or more electropneumatic regulators by using, for example, the master station on the basis of the communication so that the response performance can be improved for the remote control of the electropneumatic regulators, and the cost can be reduced.Type: GrantFiled: December 14, 1998Date of Patent: September 19, 2000Assignee: SMC Kabushiki KaishaInventors: Tadao Watanabe, Yuji Tsuda
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Patent number: 6008844Abstract: A display device is arranged to cause a display part to display, on an image plane, an index for selecting a part of the image plane which is arranged to display an image thereon, to cause a moving part to move the index in a predetermined direction on the image plane, and to cause a control part to control the direction of movement of the index in such a manner that the direction of movement is changed according to an aspect ratio of the image plane of the display part, whereby a high-quality display can be provided irrespective of the aspect ratio.Type: GrantFiled: March 29, 1996Date of Patent: December 28, 1999Assignee: Canon Kabushiki KaishaInventors: Yuji Tsuda, Kenji Kyuma
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Patent number: 6005615Abstract: An image processing apparatus constructed in a manner such that an image signal is inputted, the inputted image signal is clamped to a predetermined reference voltage in a clamp circuit, an optical black level of the clamped image signal is detected by a detection circuit, the detected optical black level and a predetermined black level are compared and a correction amount is calculated in an operation circuit, and the optical black level is corrected by operating the correction amount obtained by the operation circuit for the clamped image signal in a correction circuit.Type: GrantFiled: March 22, 1996Date of Patent: December 21, 1999Assignee: Canon Kabushiki KaishaInventor: Yuji Tsuda
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Patent number: 5959670Abstract: An image pickup apparatus includes an image pickup element for picking up an image of a subject and outputting a picked-up image signal, an electronic image magnification enlarging circuit for enlarging an image magnification of the subject by intermittently reading out the picked-up image signal outputted from the image pickup element and varying an image read-out area of an image plane, an exposure control circuit for executing exposure control on the basis of a result obtained by comparing a level of the picked-up image signal with a predetermined reference level, and a correcting circuit for correcting, according to the image magnification of the electronic image magnification enlarging circuit, a no-signal-containing portion produced by an operation of the electronic image magnification enlarging circuit and contained in the picked-up image signal to be supplied to the exposure control circuit.Type: GrantFiled: April 16, 1997Date of Patent: September 28, 1999Assignee: Canon Kabushiki KaishaInventors: Kyoji Tamura, Yuji Tsuda
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Patent number: 5883666Abstract: A video camera having a plurality of photographing modes each having different control characteristics in accordance with the photographing condition, comprising:mode selection means for selecting arbitrary photographing mode from said plurality of photographing modes; andcontrol means for transferring said photographing mode via a neutral mode having control characteristics intermediate to control characteristics of each photographing mode when the photographing mode is switched by said mode selection means,whereby abrupt change in the characteristics of control parameters or set values is avoided, and any disorder or unnatural change in the image or unstable transient control state caused by the switching can be prevented, so that the optimal photographing can be performed without respect to photographing situation or photographing environment, when the photographing mode is switched.Type: GrantFiled: October 17, 1994Date of Patent: March 16, 1999Assignee: Canon Kabushiki KaishaInventors: Kenji Kyuma, Kyoji Tamura, Koji Takahashi, Yuji Tsuda
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Patent number: 5831676Abstract: An image pickup device capable of exposure control utilizing the iris aperture, shutter speed and gain as three control parameters, comprising means for setting a photometry area in the image frame; means for setting an input parameter as a reference for evaluation, based on the luminance information in an image signal obtained from the photometry means; means for determining the values of the three control parameters for exposure control, according to the value of the input parameter; switch means for switching, according to the phototaking mode, a program setting the control caharacteristics of each control parameter as a function of the input parameter; and photometry area switch means for switching the set state of the photometry area in the image frame, in linkage with the switching operation of the switch means, wherein the phototaking mode is switched according to the phototaking conditions, thereby controlling the parameters and the light metering area according to a program matching the phototaking mType: GrantFiled: August 19, 1992Date of Patent: November 3, 1998Assignee: Canon Kabushiki KaishaInventors: Koji Takahashi, Kenji Kyuma, Kyoji Tamura, Yuji Tsuda
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Patent number: 5770792Abstract: A shock sensor including a magnetic reed switch extending in a direction in which shocks are to be detected, a member movable along the magnetic reed switch due to the shocks and including a magnet for imparting a magnetic force to the magnetic reed switch to turn on the magnetic reed switch, a coil spring for biasing the moving member toward one side of the magnetic reed switch, and an adjuster for adjusting the time duration in which the magnetic reed switch is on. The adjuster also reduces the moving speed of the moving member of adjusts the turn-on time when the magnetic reed switch is turned on.Type: GrantFiled: October 28, 1996Date of Patent: June 23, 1998Assignee: Nippon Aleph CorporationInventors: Tsutomu Nakada, Akira Fuse, Yoshiyuki Sugiyama, Yuji Tsuda, Okihiro Iwaki
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Patent number: 5621462Abstract: In an image pickup device capable of effecting the exposure control with plural control parameters such as the iris aperture, shutter speed and gain, the set range of the control parameters is divided into plural areas according to the phototaking condition, and the exposure control information is operated by varying one of the plural control parameters while fixing other control parameters in each of the plural divided areas. Thus optimum exposure control is rendered always possible according to the phototaking situation or condition. Also since the variable parameter is selected according to the phototaking situation, the magnitude of calculation required in the control circuit does not increase in each situation, and compact and rapid control can be realized.Type: GrantFiled: September 23, 1994Date of Patent: April 15, 1997Assignee: Canon Kabushiki KaishaInventors: Koji Takahashi, Kenji Kyuma, Kyoji Tamura, Yuji Tsuda
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Patent number: 5604537Abstract: An imaging apparatus makes it possible to precisely focus on an object to be photographed in each photographic mode by controlling the focusing of the object in accordance with the photographic mode.Type: GrantFiled: March 1, 1995Date of Patent: February 18, 1997Assignee: Canon Kabushiki KaishaInventors: Tatsuya Yamazaki, Kenji Kyuma, Kyoji Tamura, Koji Takahashi, Yuji Tsuda
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Patent number: 5440084Abstract: A shock sensor including a switch turned on by magnetic force. The switch includes a reed switch, a magnet sliding back and forth along a case for the reed switch, and a coil spring biasing the magnet in a particular direction. When the sensor receives a shock, the biased magnet moves along the switch case, the magnetic force applied to the reed switch increases and when this magnetic force exceeds a predetermined amount, contact portions of the reed switch are closed and the switch is in the on state. Further, a weight forming an integral part of the magnet is used to increase the kinetic energy of the magnet or, between the coil spring and the switch case, there is a slack which enables movement of the coil spring in the direction of its diameter, either structure allowing the magnet to stay in the on state longer than a conventional switch.Type: GrantFiled: January 7, 1994Date of Patent: August 8, 1995Assignee: Nippon Aleph CorporationInventors: Akira Fuse, Yuji Tsuda, Tsutomu Nakada
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Patent number: 4456807Abstract: An induction heating type cooking appliance is adapted to heat a pan by induction heating. An input unit includes touch control keys and has a timer function so that the power supply is turned on only when at least two keys are actuated properly within a given length of time. Alarms are operatively associated with the timer function so as to alert the operator automatically when the pan is shifted or the appliance is operated under a no-load condition. Such an induction heating type cooking appliance therefore enjoys a high degree of safety.Type: GrantFiled: September 9, 1982Date of Patent: June 26, 1984Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Yoshio Ogino, Takao Kobayashi, Yuji Tsuda, Hitoshi Nishimura
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Patent number: 3974509Abstract: An automatic exposure control circuit for a camera or the like includes a memory circuit comprising a series connection of a capacitor and an impedance element connected to an input of a high input impedance circuit to enable the measurement of the amount of mean light during photography under a fluorescent lamp.Type: GrantFiled: October 29, 1974Date of Patent: August 10, 1976Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Yuji Tsuda, Junji Kajiwara, Shigekazu Komori