Patents by Inventor Zenya Kawaguchi

Zenya Kawaguchi 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: 9113024
    Abstract: An image processing apparatus can execute appropriate image processing while preventing increase in a capacity of a memory for storing a plurality of pieces of image data of different frequency bands. The image processing apparatus stores first image data having the highest frequency among the plurality of pieces of image data of different frequency bands in a state in which each pixel of the first image data includes a color component signal of any of a plurality of colors, on the memory, and further stores second image data and third image data whose frequency bands are lower than that of the first image data on the memory, in a state in which a part of or all pixels of the second and the third image data have color component signals of a plurality of colors.
    Type: Grant
    Filed: May 6, 2011
    Date of Patent: August 18, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Zenya Kawaguchi, Takayuki Hara, Shutaro Kunieda
  • Patent number: 8553050
    Abstract: Disclosed is a video signal processing apparatus applicable to various LCD panels. This video signal processing apparatus includes a format converting unit which converts first-format image data into second-format image data, a point sequential converting unit which converts the second-format image data into point sequenced data, a resizing unit which resizes the point sequenced data, a line memory which stores the resized point sequenced data, and an output control unit which controls to continuously read out the point sequenced data from the line memory.
    Type: Grant
    Filed: June 30, 2006
    Date of Patent: October 8, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventors: Zenya Kawaguchi, Yoshihiro Honma, Shin Takagi
  • Patent number: 8531350
    Abstract: When a first display device displays image data, a display control apparatus reserves a memory space having the first horizontal pixel number in the storage unit, and sets the frequency of a clock signal supplied to the display control unit to a first frequency. When a second display device displays image data, a display control apparatus reserves a space of the second horizontal pixel number, which is higher than the first horizontal pixel number, and sets the frequency of a clock signal supplied to the display control unit to a second frequency which is higher than the first frequency.
    Type: Grant
    Filed: August 29, 2012
    Date of Patent: September 10, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventor: Zenya Kawaguchi
  • Publication number: 20130063623
    Abstract: An image processing apparatus can execute appropriate image processing while preventing increase in a capacity of a memory for storing a plurality of pieces of image data of different frequency bands. The image processing apparatus stores first image data having the highest frequency among the plurality of pieces of image data of different frequency bands in a state in which each pixel of the first image data includes a color component signal of any of a plurality of colors, on the memory, and further stores second image data and third image data whose frequency bands are lower than that of the first image data on the memory, in a state in which a part of or all pixels of the second and the third image data have color component signals of a plurality of colors.
    Type: Application
    Filed: May 6, 2011
    Publication date: March 14, 2013
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Zenya Kawaguchi, Takayuki Hara, Shutaro Kunieda
  • Patent number: 8350918
    Abstract: In an image capturing apparatus with an operation mode for carrying out expression detection, it is determined whether or not the image capturing apparatus is operated in the operation mode for carrying out expression detection. In a case in which the image capturing apparatus is operated in the operation mode for carrying out expression detection, setting in such a way that images with a resolution higher than in a case in which the image capturing apparatus is not operated in the operation mode are read out from an image sensor allows the expression of a face of a person to be detected efficiently.
    Type: Grant
    Filed: July 30, 2009
    Date of Patent: January 8, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventor: Zenya Kawaguchi
  • Publication number: 20120319925
    Abstract: When a first display device displays image data, a display control apparatus reserves a memory space having the first horizontal pixel number in the storage unit, and sets the frequency of a clock signal supplied to the display control unit to a first frequency. When a second display device displays image data, a display control apparatus reserves a space of the second horizontal pixel number, which is higher than the first horizontal pixel number, and sets the frequency of a clock signal supplied to the display control unit to a second frequency which is higher than the first frequency.
    Type: Application
    Filed: August 29, 2012
    Publication date: December 20, 2012
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Zenya Kawaguchi
  • Patent number: 8279139
    Abstract: When a first display device displays image data, a display control apparatus reserves a memory space having the first horizontal pixel number in the storage unit, and sets the frequency of a clock signal supplied to the display control unit to a first frequency. When a second display device displays image data, a display control apparatus reserves a space of the second horizontal pixel number, which is higher than the first horizontal pixel number, and sets the frequency of a clock signal supplied to the display control unit to a second frequency which is higher than the first frequency.
    Type: Grant
    Filed: February 26, 2008
    Date of Patent: October 2, 2012
    Assignee: Canon Kabuashiki Kaisha
    Inventor: Zenya Kawaguchi
  • Patent number: 8208035
    Abstract: An image sensing apparatus comprises an image sensing unit configured to sense an object and generate image data, a face detection unit configured to detect a face region of a person contained in the image data generated by the image sensing unit, and a facial expression determination unit configured to determine a plurality of facial expressions in the face region determined by the face detection unit. When both a first facial expression and a second facial expression are determined, the facial expression determination unit corrects a condition to determine the second facial expression so as to become difficult as compared to the determination condition when the first facial expression is not determined and the second facial expression is determined.
    Type: Grant
    Filed: July 28, 2009
    Date of Patent: June 26, 2012
    Assignee: Canon Kabushiki Kaisha
    Inventor: Zenya Kawaguchi
  • Patent number: 8085305
    Abstract: An image processing apparatus comprises: a feature detection circuit adapted to detect a feature portion of an object from a sensed image; a blur amount detection circuit adapted to detect a blur amount, during image sensing, of a device adapted to obtain the sensed image; a display unit adapted to display the sensed image, and display a frame surrounding the feature portion of the object in the displayed sensed image; and a calculation circuit adapted to set a position, in the sensed image, of the frame surrounding the feature portion of the object, wherein the calculation circuit calculates, on the basis of the blur amount, a moving amount of the frame whose position in the sensed image is set on the basis of the feature portion detected by the feature detection circuit.
    Type: Grant
    Filed: May 31, 2007
    Date of Patent: December 27, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventors: Zenya Kawaguchi, Yoshihiro Honma, Yoshinori Watanabe
  • Publication number: 20100033590
    Abstract: An image sensing apparatus comprises an image sensing unit configured to sense an object and generate image data, a face detection unit configured to detect a face region of a person contained in the image data generated by the image sensing unit, and a facial expression determination unit configured to determine a plurality of facial expressions in the face region determined by the face detection unit. When both a first facial expression and a second facial expression are determined, the facial expression determination unit corrects a condition to determine the second facial expression so as to become difficult as compared to the determination condition when the first facial expression is not determined and the second facial expression is determined.
    Type: Application
    Filed: July 28, 2009
    Publication date: February 11, 2010
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Zenya Kawaguchi
  • Publication number: 20100033591
    Abstract: In an image capturing apparatus with an operation mode for carrying out expression detection, it is determined whether or not the image capturing apparatus is operated in the operation mode for carrying out expression detection. In a case in which the image capturing apparatus is operated in the operation mode for carrying out expression detection, setting in such a way that images with a resolution higher than in a case in which the image capturing apparatus is not operated in the operation mode are read out from an mage sensor allows the expression of a face of a person to be detected efficiently.
    Type: Application
    Filed: July 30, 2009
    Publication date: February 11, 2010
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Zenya Kawaguchi
  • Patent number: 7573505
    Abstract: An image capturing apparatus having an auto focus function or an auto exposure function stores digital image data output from an A/D conversion unit as first image data directly or after performing predetermined processing, and stores the digital image data serving as a base of the first image data as second image data after performing predetermined processing for the digital image data. The apparatus then detects a face region from the second image data, and displays the image on the basis of the image data output from the A/D conversion unit while the face region is detected form the second image data. After completion of detection of the face region from the second image data, the apparatus extracts information for auto focus, auto exposure, or white balance by using, of the first image data, data at a portion corresponding to the face region that is detected by said face detection means, and performs auto focus control, auto exposure control, or white balance control.
    Type: Grant
    Filed: March 31, 2005
    Date of Patent: August 11, 2009
    Assignee: Canon Kabushiki Kaisha
    Inventors: Zenya Kawaguchi, Yoshihiro Kobayashi
  • Publication number: 20080297432
    Abstract: When a first display device displays image data, a display control apparatus reserves a memory space having the first horizontal pixel number in the storage unit, and sets the frequency of a clock signal supplied to the display control unit to a first frequency. When a second display device displays image data, a display control apparatus reserves a space of the second horizontal pixel number, which is higher than the first horizontal pixel number, and sets the frequency of a clock signal supplied to the display control unit to a second frequency which is higher than the first frequency.
    Type: Application
    Filed: February 26, 2008
    Publication date: December 4, 2008
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Zenya Kawaguchi
  • Publication number: 20070291155
    Abstract: An image processing apparatus comprises: a feature detection circuit adapted to detect a feature portion of an object from a sensed image; a blur amount detection circuit adapted to detect a blur amount, during image sensing, of a device adapted to obtain the sensed image; a display unit adapted to display the sensed image, and display a frame surrounding the feature portion of the object in the displayed sensed image; and a calculation circuit adapted to set a position, in the sensed image, of the frame surrounding the feature portion of the object, wherein the calculation circuit calculates, on the basis of the blur amount, a moving amount of the frame whose position in the sensed image is set on the basis of the feature portion detected by the feature detection circuit.
    Type: Application
    Filed: May 31, 2007
    Publication date: December 20, 2007
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Zenya Kawaguchi, Yoshihiro Honma, Yoshinori Watanabe
  • Publication number: 20070019082
    Abstract: Disclosed is a video signal processing apparatus applicable to various LCD panels. This video signal processing apparatus includes a format converting unit which converts first-format image data into second-format image data, a point sequential converting unit which converts the second-format image data into point sequenced data, a resizing unit which resizes the point sequenced data, a line memory which stores the resized point sequenced data, and an output control unit which controls to continuously read out the point sequenced data from the line memory.
    Type: Application
    Filed: June 30, 2006
    Publication date: January 25, 2007
    Inventors: Zenya Kawaguchi, Yoshihiro Honma, Shin Takagi
  • Publication number: 20050270399
    Abstract: An image pickup apparatus which increases the rate at which a person's face is detected in electronic zoom and accurately focuses on a person's face area and provides exposure/white balance control. An A/D converting unit converts an analog signal obtained from an image pickup device into a digital image signal. A signal processing unit performs signal processing on the digital image signal as image data. A display unit displays a zoom area in the image data magnified/reduced to a desired angle of view. A face detecting unit detects a person's face area from image data of a face detecting area narrower than the whole area of the image data and wider than the zoom area to acquire information on the person's face area.
    Type: Application
    Filed: June 3, 2005
    Publication date: December 8, 2005
    Applicant: Canon Kabushiki Kaisha
    Inventors: Zenya Kawaguchi, Masato Kosugi
  • Publication number: 20050231628
    Abstract: An image capturing apparatus having an auto focus function or an auto exposure function stores digital image data output from an A/D conversion unit as first image data directly or after performing predetermined processing, and stores the digital image data serving as a base of the first image data as second image data after performing predetermined processing for the digital image data. The apparatus then detects a face region from the second image data, and displays the image on the basis of the image data output from the A/D conversion unit while the face region is detected form the second image data. After completion of detection of the face region from the second image data, the apparatus extracts information for auto focus, auto exposure, or white balance by using, of the first image data, data at a portion corresponding to the face region that is detected by said face detection means, and performs auto focus control, auto exposure control, or white balance control.
    Type: Application
    Filed: March 31, 2005
    Publication date: October 20, 2005
    Inventors: Zenya Kawaguchi, Yoshihiro Kobayashi
  • Patent number: 6603817
    Abstract: Complementary signals on a pair of first signal lines are transferred onto a pair of second signal lines in synchronization with a clock signal by a buffer circuit. The buffer circuit includes an equalize circuit to equalize a pair of internal nodes to a prescribed potential, a transfer gate circuit activated, when the equalize circuit completes equalization, to couple the pair of first signal lines and the pair of internal nodes, an amplifier circuit to differentially amplify the signals on the internal nodes when the transfer gate completes the transfer operation, an output transfer circuit to transmit the signals on the pair of internal nodes onto the pair of second signal lines in synchronization with the clock signal, and a control circuit to control the operation of the equalize circuit, the transfer gate circuit and the amplifier circuit. After the pair of internal nodes is equalized to the prescribed potential, the signals from the pair of first signal lines are received and amplified.
    Type: Grant
    Filed: March 21, 2000
    Date of Patent: August 5, 2003
    Assignee: Mitsubisihi Denki Kabushiki Kaisha
    Inventors: Takeshi Hamamoto, Zenya Kawaguchi
  • Patent number: 6333892
    Abstract: A command decoder receives an externally supplied command independently of an internal clock signal, decodes the command, generates a column access mode instruction signal, and activates a column address activation signal when the internal clock signal rises. An internal column address signal generating circuit generates an internal column address signal from an externally supplied address signal according to the column address activation signal. Accordingly, the internal column address is generated at an advanced timing to enable a following column selecting operation to be started at a faster timing. A synchronous semiconductor memory device capable of performing the column selecting operation at a high speed is thus provided.
    Type: Grant
    Filed: November 30, 2000
    Date of Patent: December 25, 2001
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Takeshi Hamamoto, Zenya Kawaguchi, Motoko Hara
  • Patent number: 6243320
    Abstract: A command decoder receives an externally supplied command independently of an internal clock signal, decodes the command, generates a column access mode instruction signal, and activates a column address activation signal when the internal clock signal rises. An internal column address signal generating circuit generates an internal column address signal from an externally supplied address signal according to the column address activation signal. Accordingly, the internal column address is generated at an advanced timing to enable a following column selecting operation to be started at a faster timing. A synchronous semiconductor memory device capable of performing the column selecting operation at a high speed is thus provided.
    Type: Grant
    Filed: March 11, 1999
    Date of Patent: June 5, 2001
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Takeshi Hamamoto, Zenya Kawaguchi, Motoko Hara