Patents by Inventor Masayoshi Sekine

Masayoshi Sekine 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).

  • Patent number: 6870566
    Abstract: In an image sensing apparatus using an image sensing device, such as a CCD, to be used by connecting to an external device, such as a computer, an operating rate of the CCD is changed in accordance with a rate at which the computer receives image signals from the image sensing apparatus. Further, when the operating rate of the CCD is changed, a proper exposure value is conjectured to obtain an image sensed at a proper exposure on the basis of operating rates of the CCD before and after the operating rate is changed, and a proper exposure value of the CCD before the operating rate is changed.
    Type: Grant
    Filed: November 26, 1996
    Date of Patent: March 22, 2005
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yuji Koide, Kenichi Kondo, Nobuo Fukushima, Masayoshi Sekine, Koichi Sono, Gaku Watanabe
  • Publication number: 20050018053
    Abstract: In a video system of the invention, control means is provided for a terminal input apparatus which is connected by a communication network of a camera on the partner side and which comprises an image display apparatus having a multiwindow display function for selecting and displaying the camera. An image pickup operation which is required to the camera on the partner side, for example, the image pickup direction, focal distance, panning, exposure amount, white balance, automatic focusing, and the like of the designated camera are inputted by using an image display and a window display of the image display apparatus. The operation of the camera on the partner side and the operations of a tripod, a movable arm, and the like to hold the camera are controlled through communicating means. A photographed image is displayed by the display apparatus.
    Type: Application
    Filed: August 7, 2003
    Publication date: January 27, 2005
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Akira Suga, Tomotaka Muramoto, Katsumi Iijima, Hideaki Mitsutake, Masayoshi Sekine
  • Patent number: 6839835
    Abstract: In a processor system having a CPU, a RAM, and a communication portion for external communication, the operation of the central processing unit is stopped when an IPL operation mode is selected by an operation mode selection switch. An IPL program transferred from the outside through the communication portion is then written to the RAM starting from a predetermined address, and the stoppage of the operation of the CPU is thereafter canceled. The CPU restarting the operation executes the IPL program written to the RAM by first reading the predetermined address to download a system program. Since the IPL program is transferred from the outside, the IPL program to be used can be easily changed.
    Type: Grant
    Filed: January 29, 2001
    Date of Patent: January 4, 2005
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takahisa Kawade, Masayoshi Sekine, Gaku Watanabe, Keihiro Kurakata
  • Patent number: 6823080
    Abstract: A three-dimensional information processing apparatus for obtaining three-dimensional information from an object having a three-dimensional shape, and performing predetermined information processing, comprises: a camera for sensing images of the object from a plurality of coordinate positions using an image sensing system having one or a plurality of optical systems. A plurality of depth information are extracted from image sensing related information sensed by the camera at the plurality of coordinate positions, and the plurality of extracted depth information are converted and unified into depth information expressed by a unified coordinate system.
    Type: Grant
    Filed: July 29, 2002
    Date of Patent: November 23, 2004
    Assignee: Canon Kabushiki Kaisha
    Inventors: Katsumi Iijima, Shigeki Okauchi, Masakazu Matsugu, Masayoshi Sekine, Kotaro Yano, Sunao Kurahashi, Tatsushi Katayama, Katsuhiko Mori, Motohiro Ishikawa
  • Patent number: 6810481
    Abstract: An object of this invention is to provide an electronic device which can establish connection between a host and a device to be connected thereto without any problem. In order to achieve this object, when a device whose power consumption exceeds the allowable power supply capacity of an electronic device which can supply power to the connected device through a connection terminal is connected to the electronic device, the supply of power to the device is restricted.
    Type: Grant
    Filed: August 30, 2000
    Date of Patent: October 26, 2004
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takahisa Kawade, Masayoshi Sekine
  • Publication number: 20040178775
    Abstract: A control system having device units removably attachable to a control device such as a computer is arranged to optimize the allocation and distribution of electric power to the device units and also displays of varied kinds. For this purpose, each device unit of the system includes a communication circuit arranged to transmit information of electric power consumption and an operating state of the device unit detachably connected to the control device such as a computer, a stopping circuit for partly stopping a function of the device unit according to a control signal sent in reply from the control device on the basis of information of varied kinds transmitted through the transmission circuit to the control device.
    Type: Application
    Filed: March 22, 2004
    Publication date: September 16, 2004
    Inventors: Gaku Watanabe, Kenichi Kondo, Nobuo Fukushima, Masayoshi Sekine, Koichi Sono, Motohiro Ishikawa, Yuji Koide
  • Patent number: 6741652
    Abstract: A movement vector detecting device is provided with a movement vector detecting circuit for detecting a movement vector in each of blocks obtained by dividing an image frame, an edge number detecting circuit for detecting the number of edges in each of the blocks, and an evaluation circuit for evaluating the reliability of the movement vector value detected by the movement vector detecting circiut, based on the number of edges detected by the edge number detecting circuit.
    Type: Grant
    Filed: January 27, 1995
    Date of Patent: May 25, 2004
    Assignee: Canon Kabushiki Kaisha
    Inventors: Toshiaki Kondo, Masayoshi Sekine
  • Publication number: 20040073819
    Abstract: A peripheral device which is connected with a host computer is prevented from unexpectedly coming to be in a disconnection state due to control of the host computer. Further, even when the peripheral device such as an electronic camera can not enough receive power necessary for the device itself from a connection line such as a USB, the peripheral device is made to be able to use the power effectively. To achieve the above, there is disclosed a computer peripheral device which is connected with the host computer and comprises a connection signal transmission unit for transmitting to the host computer a signal to control the connection with the host computer and a control unit for shifting an operation state of the computer peripheral device to a low consumption current mode after the connection signal transmission unit transmitted to the host computer a signal to control into the disconnection state.
    Type: Application
    Filed: October 3, 2003
    Publication date: April 15, 2004
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Masayoshi Sekine, Takashi Aizawa, Yuji Koide
  • Patent number: 6662301
    Abstract: A peripheral device which is connected with a host computer is prevented from unexpectedly coming to be in a disconnection state due to control of the host computer. Further, even when the peripheral device such as an electronic camera can not enough receive power necessary for the device itself from a connection line such as a USB, the peripheral device is made to be able to use the power effectively. To achieve the above, there is disclosed a computer peripheral device which is connected with the host computer and comprises a connection signal transmission unit for transmitting to the host computer a signal to control the connection with the host computer and a control unit for shifting an operation state of the computer peripheral device to a low consumption current mode after the connection signal transmission unit transmitted to the host computer a signal to control into the disconnection state.
    Type: Grant
    Filed: August 21, 2000
    Date of Patent: December 9, 2003
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masayoshi Sekine, Takashi Aizawa, Yuji Koide
  • Publication number: 20030206653
    Abstract: Images sensed through object lenses 100R and 100L, having zoom lenses, with image sensors 102R and 102L are processed by image signal processors 104R and 104L, and an image of an object in each of the sensed images is separated from a background image on the basis of the processed image signals. The separated image signals representing the image of the object enter the image processor 220, where a three-dimensional shape of the object is extracted on the basis of parameters used upon sensing the images. The parameters are automatically adjusted so that images of the object fall within the both image sensing areas of the image sensors 102R and 102L and that they fall within the both focal depths of the image sensors 102R and 102L.
    Type: Application
    Filed: May 5, 2003
    Publication date: November 6, 2003
    Inventors: Tatsushi Katayama, Shigeki Okauchi, Nobuo Fukushima, Masakazu Matsugu, Katsumi Iijima, Masayoshi Sekine, Kotaro Yano, Sunao Kurahashi, Motohiro Ishikawa
  • Patent number: 6642958
    Abstract: In an image pickup system, an image pickup unit is connected to a computer which has a display device. In order to make a display by matching the characteristic of the image pickup unit with that of the display device, the image pickup unit is provided with a control part which is arranged to measure a signal processing speed of the computer, to compare the signal processing speed with an image pickup speed or a picked-up image data output speed of the image pickup unit and to vary an image pickup action or a picked-up image data output action of the image pickup unit according to a result of the comparison or according to an operation performed by an operator of the image pickup system.
    Type: Grant
    Filed: August 5, 1999
    Date of Patent: November 4, 2003
    Assignee: Canon Kabushiki Kaisha
    Inventors: Gaku Watanabe, Kenichi Kondo, Nobuo Fukushima, Masayoshi Sekine, Koichi Sono, Motohiro Ishikawa, Yuji Koide
  • Patent number: 6640004
    Abstract: Images sensed through object lenses 100R and 100L, having zoom lenses, with image sensors 102R and 102L are processed by image signal processors 104R and 104L, and an image of an object in each of the sensed images is separated from a background image on the basis of the processed image signals. The separated image signals representing the image of the object enter the image processor 220, where a three-dimensional shape of the object is extracted on the basis of parameters used upon sensing the images. The parameters are automatically adjusted so that images of the object fall within the both image sensing areas of the image sensors 102R and 102L and that they fall within the both focal depths of the image sensors 102R and 102L.
    Type: Grant
    Filed: July 26, 1996
    Date of Patent: October 28, 2003
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tatsushi Katayama, Shigeki Okauchi, Nobuo Fukushima, Masakazu Matsugu, Katsumi Iijima, Masayoshi Sekine, Kotaro Yano, Sunao Kurahashi, Motohiro Ishikawa
  • Publication number: 20030175025
    Abstract: This invention has as its object to integrate and simplify a communication interface, and to attain a size reduction of a camera housing and a cost reduction. To accomplish this, a digital camera transfers a control signal that controls the operation of at least one strobe device, and an image signal output from an image sensing means via a single USB cable. Upon making an image sensing operation that requires strobe emission of the strobe device, transfer of the image signal is suspended, and a control signal for the strobe device is preferentially transferred.
    Type: Application
    Filed: February 4, 2003
    Publication date: September 18, 2003
    Inventors: Gaku Watanabe, Masayoshi Sekine
  • Patent number: 6545775
    Abstract: A control system having device units removably attachable to a control device such as a computer is arranged to optimize the allocation and distribution of electric power to the device units. Each device unit of the system includes a communication circuit arranged to transmit information of electric power consumption and an operating state of the device unit detachably connected to the control device such as a computer, a stopping circuit for partly stopping a function of the device unit according to a control signal sent in reply from the control device on the basis of information of varied kinds transmitted through the transmission circuit to the control device. The control device is arranged to receive information on the device unit from the device unit, and a control circuit arranged to compare the information of electric power consumption and the operating state received by the communication circuit with information of the amount of electric power which can be supplied to the device unit.
    Type: Grant
    Filed: July 10, 1996
    Date of Patent: April 8, 2003
    Assignee: Canon Kabushiki Kaisha
    Inventors: Gaku Watanabe, Kenichi Kondo, Nobuo Fukushima, Masayoshi Sekine, Koichi Sono, Motohiro Ishikawa, Yuji Koide
  • Publication number: 20030007680
    Abstract: A three-dimensional information processing apparatus for obtaining three-dimensional information from an object having a three-dimensional shape, and performing predetermined information processing, comprises: a camera for sensing images of the object from a plurality of coordinate positions using an image sensing system having one or a plurality of optical systems. A plurality of depth information are extracted from image sensing related information sensed by the camera at the plurality of coordinate positions, and the plurality of extracted depth information are converted and unified into depth information expressed by a unified coordinate system.
    Type: Application
    Filed: July 29, 2002
    Publication date: January 9, 2003
    Inventors: Katsumi Iijima, Shigeki Okauchi, Masakazu Matsugu, Masayoshi Sekine, Kotaro Yano, Sunao Kurahashi, Tatsushi Katayama, Katsuhiko Mori, Motohiro Ishikawa
  • Patent number: 6476869
    Abstract: In a system for transmitting a video signal obtained by a camera to a discrete device either via a recording/reproducing system or via a transmission line, an image processing system includes a circuit which is arranged within the camera to generate a photo-taking state signal indicating information on aberrations in particular; and a correction circuit which is arranged within a device for reproducing or receiving the video signal to correct the aberrations of the video signal in accordance with the photo-taking state signal.
    Type: Grant
    Filed: January 19, 1994
    Date of Patent: November 5, 2002
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masayoshi Sekine, Shigeyuki Suda, Yasuyuki Unno
  • Patent number: 6445814
    Abstract: A three-dimensional information processing apparatus for obtaining three-dimensional information from an object having a three-dimensional shape, and performing predetermined information processing, comprises: a camera for sensing images of the object from a plurality of coordinate positions using an image sensing system having one or a plurality of optical systems. A plurality of depth information are extracted from image sensing related information sensed by the camera at the plurality of coordinate positions, and the plurality of extracted depth information are converted and unified into depth information expressed by a unified coordinate system.
    Type: Grant
    Filed: June 30, 1997
    Date of Patent: September 3, 2002
    Assignee: Canon Kabushiki Kaisha
    Inventors: Katsumi Iijima, Shigeki Okauchi, Masakazu Matsugu, Masayoshi Sekine, Kotaro Yano, Sunao Kurahashi, Tatsushi Katayama, Katsuhiko Mori, Motohiro Ishikawa
  • Publication number: 20020109778
    Abstract: In an image pickup system, an image pickup unit is connected to a computer which has a display device. In order to make a display by matching the characteristic of the image pickup unit with that of the display device, the image pickup unit is provided with a control part which is arranged to measure a signal processing speed of the computer, to compare the signal processing speed with an image pickup speed or a picked-up image data output speed of the image pickup unit and to vary an image pickup action or a picked-up image data output action of the image pickup unit according to a result of the comparison or according to an operation performed by an operator of the image pickup system.
    Type: Application
    Filed: August 5, 1999
    Publication date: August 15, 2002
    Inventors: GAKU WATANABE, KENICHI KONDO, NOBUO FUKUSHIMA, MASAYOSHI SEKINE, KOICHI SONO, MOTOHIRO ISHIKAWA, YUJI KOIDE
  • Patent number: 6433820
    Abstract: To provide a high-performance image pickup system capable of reducing an image area and effectively using a memory, in transfer of one-frame image data from an image pickup device to an image processing circuit, the one-frame image data is divided into a plurality of blocks, and the blocks are transferred. The image processing circuit temporarily stores the one-block image data in a memory circuit and performs predetermined image processing of the stored one-block image data. The image processing circuit then temporarily stores the next one-block image data in the memory circuit and performs predetermined image processing for this stored one-block image data. The predetermined image processing can be performed in units of blocks. The necessary image area can have a capacity of at least one block in the memory circuit in the image processing circuit.
    Type: Grant
    Filed: April 28, 1998
    Date of Patent: August 13, 2002
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yuji Koide, Masayoshi Sekine, Makoto Hiramatsu, Takashi Aizawa
  • Publication number: 20020093572
    Abstract: An image-capturing apparatus has a function for printing an image with the use of an external printer. The image-capturing apparatus includes an image-capturing section, a control section, and a clock generating section. The control section controls the operation of the entire image-capturing apparatus, including the image-capturing section (hardware), and executes printing processing for printing an image by the external printer. The clock generating section generates a higher operating frequency when the control section executes printing processing (i.e., in a printing mode) than when the image-capturing section obtains an image (i.e., in an image-capturing mode), for the control section.
    Type: Application
    Filed: December 21, 2001
    Publication date: July 18, 2002
    Inventor: Masayoshi Sekine