Patents by Inventor Takaaki Kuratate

Takaaki Kuratate 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 coding and video decoding apparatus
    Patent number: 6307967
    Abstract: A video encoding apparatus is provided with a resolution converting section, an encoding section, and a transmitting section. The resolution converting section enlarges or reduces a binary picture which represents the shape of an object. The encoding section encodes a binary picture reduced by the resolution converting section. The reduction ratio used by the resolution converting section is encoded, and the transmitting section transmits this encoded reduction ratio along with encoded data on the binary picture. The amount of encoded data produced from the encoding section is controlled by changing the enlargement/reduction ratio used by the resolution converting section.
    Type: Grant
    Filed: August 8, 2000
    Date of Patent: October 23, 2001
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Noboru Yamaguchi, Toshiaki Watanabe, Takashi Ida, Takaaki Kuratate
  • Video coding and video decoding apparatus
    Patent number: 6292585
    Abstract: A video encoding apparatus is provided with a resolution converting section, an encoding section, and a transmitting section. The resolution converting section enlarges or reduces a binary picture which represents the shape of an object. The encoding section encodes a binary picture reduced by the resolution converting section. The reduction ratio used by the resolution converting section is encoded, and the transmitting section transmits this encoded reduction ratio along with encoded data on the binary picture. The amount of encoded data produced from the encoding section is controlled by changing the enlargement/reduction ratio used by the resolution converting section.
    Type: Grant
    Filed: August 9, 2000
    Date of Patent: September 18, 2001
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Noboru Yamaguchi, Toshiaki Watanabe, Takashi Ida, Takaaki Kuratate
  • Video coding and video decoding apparatus for changing a resolution conversion according to a reduction ratio setting information signal
    Patent number: 6154495
    Abstract: A video encoding apparatus is provided with a resolution converting section, an encoding section, and a transmitting section. The resolution converting section enlarges or reduces a binary picture which represents the shape of an object. The encoding section encodes a binary picture reduced by the resolution converting section. The reduction ratio used by the resolution converting section is encoded, and the transmitting section transmits this encoded reduction ratio along with encoded data on the binary picture. The amount of encoded data produced from the encoding section is controlled by changing the enlargement/reduction ratio used by the resolution converting section.
    Type: Grant
    Filed: April 30, 1998
    Date of Patent: November 28, 2000
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Noboru Yamaguchi, Toshiaki Watanabe, Takashi Ida, Takaaki Kuratate
  • Video coding and video decoding apparatus for enlarging a decoded alpha-map signal in accordance with a reduction ratio setting information signal
    Patent number: 6130913
    Abstract: A video encoding apparatus is provided with a resolution converting section, an encoding section, and a transmitting section. The resolution converting section enlarges or reduces a binary picture which represents the shape of an object. The encoding section encodes a binary picture reduced by the resolution converting section. The reduction ratio used by the resolution converting section is encoded, and the transmitting section transmits this encoded reduction ratio along with encoded data on the binary picture. The amount of encoded data produced from the encoding section is controlled by changing the enlargement/reduction ratio used by the resolution converting section.
    Type: Grant
    Filed: November 20, 1998
    Date of Patent: October 10, 2000
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Noboru Yamaguchi, Toshiaki Watanabe, Takashi Ida, Takaaki Kuratate
  • Video coding and video decoding apparatus
    Patent number: 6088486
    Abstract: A video encoding apparatus is provided with a resolution converting section, an encoding section, and a transmitting section. The resolution converting section enlarges or reduces a binary picture which represents the shape of an object. The encoding section encodes a binary picture reduced by the resolution converting section. The reduction ratio used by the resolution converting section is encoded, and the transmitting section transmits this encoded reduction ratio along with encoded data on the binary picture. The amount of encoded data produced from the encoding section is controlled by changing the enlargement/reduction ratio used by the resolution converting section.
    Type: Grant
    Filed: April 30, 1998
    Date of Patent: July 11, 2000
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Noboru Yamaguchi, Toshiaki Watanabe, Takashi Ida, Takaaki Kuratate
  • Video coding and video decoding apparatus for reducing an alpha-map signal at a controlled reduction ratio
    Patent number: 5883678
    Abstract: A video encoding apparatus is provided with a resolution converting section, an encoding section, and a transmitting section. The resolution converting section enlarges or reduces a binary picture which represents the shape of an object. The encoding section encodes a binary picture reduced by the resolution converting section. The reduction ratio used by the resolution converting section is encoded, and the transmitting section transmits this encoded reduction ratio along with encoded data on the binary picture. The amount of encoded data produced from the encoding section is controlled by changing the enlargement/reduction ratio used by the resolution converting section.
    Type: Grant
    Filed: September 30, 1996
    Date of Patent: March 16, 1999
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Noboru Yamaguchi, Toshiaki Watanabe, Takashi Ida, Takaaki Kuratate
  • Video encoder using global motion estimation and polygonal patch motion estimation
    Patent number: 5592228
    Abstract: A video coding apparatus ensuring a high coding efficiency even at a low bit rate includes a moving object analyzer which extracts a moving part from an input picture signal, analyzes its motion, and outputs a residual signal relative to a reconstruction image and motion parameters. The apparatus further includes a residual coding device for coding the residual signal, a reconstruction device for reconstructing a picture using the motion parameters, and a device that performs a variable length coding of the motion parameters and residual coded information.
    Type: Grant
    Filed: March 2, 1994
    Date of Patent: January 7, 1997
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Kenshi Dachiku, Shogo Yamaguchi, Kazuo Ozeki, Katsumi Takahashi, Mitsunori Omokawa, Takaaki Kuratate