Patents by Inventor Hiroyuki Fukuoka

Hiroyuki Fukuoka 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).

  • Video signal processing apparatus for processing video signals with different aspect ratios
    Patent number: 5638485
    Abstract: A video signal processing apparatus including an input unit for inputting a video signal, a detecting unit for detecting an aspect ratio of the video signal inputted to the input unit, a holding unit for holding aspect information representing the aspect ratio detected by the detecting unit, an abnormal state detecting unit for detecting an abnormal state of the video signal inputted to the input unit, and an output unit for selectively outputting aspect information outputted from the aspect ratio detecting unit and the aspect information held by the holding unit, in accordance with an output of the abnormal state detecting unit.
    Type: Grant
    Filed: June 14, 1994
    Date of Patent: June 10, 1997
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takashi Kobayashi, Hiroyuki Takimoto, Taizou Hori, Hiroyuki Fukuoka, Yoshihiro Nakatani, Jun Makino, Shinichi Koyama
  • Image processing apparatus
    Patent number: 5539470
    Abstract: There is provided an image processing apparatus which comprises an inputting part for inputting an image signal, an attenuating part for attenuating a predetermined frequency portion of the image signal inputted by the inputting part, and a controlling part for controlling an attenuation characteristic of the attenuating part for attenuating the predetermined frequency portion, in accordance with a compression ratio of the image signal inputted by the inputting part. There is also provided an image processing apparatus which comprises an inputting part for inputting an image signal, an enhancing part for enhancing a high frequency band of the image signal inputted by the inputting part, and a controlling part for controlling a high-frequency-band enhancement characteristic of the enhancing part in accordance with a compression ratio of the image signal inputted by the inputting part.
    Type: Grant
    Filed: September 7, 1994
    Date of Patent: July 23, 1996
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiroyuki Fukuoka, Hiroyuki Takimoto, Taizo Hori, Takashi Kobayashi, Yoshihiro Nakatani, Jun Makino, Shinichi Koyama
  • Image processing apparatus which can process a plurality of kinds of images having different aspect ratios
    Patent number: 5392069
    Abstract: There is provided an image processing apparatus having an input unit for inputting a video signal, a detection unit for detecting the aspect ratio of the video signal input by the input unit, an image output unit for outputting an image having an aspect ratio corresponding to the aspect ratio detected by the detection unit, and a synthesizing unit for synthesizing the output from the image output unit with the video signal.
    Type: Grant
    Filed: June 7, 1993
    Date of Patent: February 21, 1995
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shinichi Koyama, Hiroyuki Takimoto, Taizou Hori, Takashi Kobayashi, Hiroyuki Fukuoka, Yoshihiro Nakatani, Jun Makino
  • Image processing apparatus for correcting the aperture of a compressed signal
    Patent number: 5373321
    Abstract: An image processing apparatus includes a discriminating circuit for determining a compression ratio of an image signal input thereto, the image signal being compressed in a horizontal direction. An aperture correction control circuit is provided for controlling frequency characteristics of an aperture correcting circuit in response to the output of the discriminating circuit. Correction characteristics in an expanded image signal to be output are made equivalent to frequency characteristics of an aperture correction operation to be conducted on a television signal having a predetermined aspect ratio.
    Type: Grant
    Filed: October 19, 1992
    Date of Patent: December 13, 1994
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiroyuki Fukuoka, Koji Takahashi
  • Apparatus for processing video signals having different aspect ratios
    Patent number: 5347318
    Abstract: A video signal processing apparatus including an input unit for inputting a video signal, a detecting unit for detecting an aspect ratio of the video signal inputted to the input unit, a holding unit for holding aspect information representing the aspect ratio detected by the detecting unit, an abnormal state detecting unit for detecting an abnormal state of the video signal inputted to the input unit, and an output unit for selectively outputting aspect information outputted from the aspect ratio detecting unit and the aspect information held by the holding unit, in accordance with an output of the abnormal state detecting unit.
    Type: Grant
    Filed: June 10, 1993
    Date of Patent: September 13, 1994
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takashi Kobayashi, Hiroyuki Takimoto, Taizou Hori, Hiroyuki Fukuoka, Yoshihiro Nakatani, Jun Makino, Shinichi Koyama