Patents by Inventor Hideaki Tokutomi

Hideaki Tokutomi 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: 8154654
    Abstract: According to one embodiment, a frame interpolation device includes a detecting section which receives a frame signal of 60 Hz and outputs a pull-down detection signal when determining that the frame signal is a pull-down signal, a generation section which generates a first frame signal of 120 Hz by use of a first insertion pattern based on the frame signal of 60 Hz and a second frame signal of 120 Hz by use of a second insertion pattern, and a selecting section which outputs the first frame signal by the first insertion pattern when the pull-down detection signal is not received and outputs the second frame signal of 120 Hz of the second insertion pattern when the pull-down detection signal is received.
    Type: Grant
    Filed: November 30, 2007
    Date of Patent: April 10, 2012
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Hideaki Tokutomi, Himio Yamauchi, Toshiyuki Namioka
  • Patent number: 7728908
    Abstract: According to the invention, a pull-down signal detecting apparatus includes: an interfield motion detecting module configured to determine whether or not an interfield motion between a first field signal and a second field signal exists by comparing a first counted number with a first threshold; an interframe motion determining module configured to determine whether or not an interframe motion between the first field signal and a third field signal exists by comparing a second counted number with a second threshold; a determination module configured to determine whether or not the video signal is pull-down signal based on the determination result of the interfield motion determining module and the interframe motion determining module; and a threshold control module configured to vary the first threshold, when the determination result of the interframe motion determining module corresponds with a second pull-down pattern and when the determination result of the interfield motion determining module does not cor
    Type: Grant
    Filed: February 26, 2009
    Date of Patent: June 1, 2010
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Hideaki Tokutomi
  • Patent number: 7688386
    Abstract: According to one embodiment, a de-interlacing apparatus includes: a motion vector detecting section; a full-screen shift detecting section detecting a full-screen shift; a moving-or-still judging section performing a moving/still judgment for a video signal; a moving judgment correcting section correcting a moving/still judgment result to lean toward a moving judgment when full-screen shift is detected; a first interpolation signal generating section generating a first interpolation signal for interpolating a one-field delay signal based on the motion vector and the full-screen shift; a second interpolation signal generating section generating a second interpolation signal for interpolating the one-field delay signal from a current field signal or a two-field delay signal; and an interpolation signal mixing section mixing the first and second interpolation signals to generate a mixed interpolation signal.
    Type: Grant
    Filed: November 4, 2008
    Date of Patent: March 30, 2010
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Hideaki Tokutomi, Himio Yamauchi, Shogo Matsubara
  • Publication number: 20090322886
    Abstract: According to the invention, a pull-down signal detecting apparatus includes: an interfield motion detecting module configured to determine whether or not an interfield motion between a first field signal and a second field signal exists by comparing a first counted number with a first threshold; an interframe motion determining module configured to determine whether or not an interframe motion between the first field signal and a third field signal exists by comparing a second counted number with a second threshold; a determination module configured to determine whether or not the video signal is pull-down signal based on the determination result of the interfield motion determining module and the interframe motion determining module; and a threshold control module configured to vary the first threshold, when the determination result of the interframe motion determining module corresponds with a second pull-down pattern and when the determination result of the interfield motion determining module does not cor
    Type: Application
    Filed: February 26, 2009
    Publication date: December 31, 2009
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventor: Hideaki Tokutomi
  • Publication number: 20090167937
    Abstract: According to one embodiment, a de-interlacing apparatus includes: a motion vector detecting section; a full-screen shift detecting section detecting a full-screen shift; a moving-or-still judging section performing a moving/still judgment for a video signal; a moving judgment correcting section correcting a moving/still judgment result to lean toward a moving judgment when full-screen shift is detected; a first interpolation signal generating section generating a first interpolation signal for interpolating a one-field delay signal based on the motion vector and the full-screen shift; a second interpolation signal generating section generating a second interpolation signal for interpolating the one-field delay signal from a current field signal or a two-field delay signal; and an interpolation signal mixing section mixing the first and second interpolation signals to generate a mixed interpolation signal.
    Type: Application
    Filed: November 4, 2008
    Publication date: July 2, 2009
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Hideaki Tokutomi, Himio Yamauchi, Shogo Matsubara
  • Publication number: 20080131030
    Abstract: According to one embodiment, a frame interpolation device includes a detecting section which receives a frame signal of 60 Hz and outputs a pull-down detection signal when determining that the frame signal is a pull-down signal, a generation section which generates a first frame signal of 120 Hz by use of a first insertion pattern based on the frame signal of 60 Hz and a second frame signal of 120 Hz by use of a second insertion pattern, and a selecting section which outputs the first frame signal by the first insertion pattern when the pull-down detection signal is not received and outputs the second frame signal of 120 Hz of the second insertion pattern when the pull-down detection signal is received.
    Type: Application
    Filed: November 30, 2007
    Publication date: June 5, 2008
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: HIDEAKI TOKUTOMI, Himio Yamauchi, Toshiyuki Namioka
  • Publication number: 20070273789
    Abstract: According to one embodiment, a pull-down signal detecting apparatus judges whether an input video signal is a pull-down signal or not based on a first unit moving area number obtained in a small area unit for a first high correlation field having a high inter-field correlation between a current field signal and a one-field delay signal, or a second unit moving area number obtained in a small area unit for a second high correlation field having a high inter-frame correlation between the current field signal and a two-field delay signal.
    Type: Application
    Filed: February 23, 2007
    Publication date: November 29, 2007
    Inventors: Hideaki Tokutomi, Himio Yamauchi