Patents by Inventor Yoshinori Kohno

Yoshinori Kohno 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).

  • Publication number: 20220281520
    Abstract: A steering holding determination device configured to determine whether a driver holds a steering member, the steering holding determination device including: a predicted value calculation unit configured to calculate a predicted value of at least one of one or more state quantities related to steering of the steering member and one or more state quantities related to turning of a wheel; and a steering holding determination unit configured to determine whether the driver holds the steering member with reference to the predicted value calculated by the predicted value calculation unit and a variance of the predicted value.
    Type: Application
    Filed: May 19, 2022
    Publication date: September 8, 2022
    Applicant: Hitachi Astemo, Ltd.
    Inventors: Hirokazu FUJIMOTO, Tatsuru NIIHARA, Yoshinori KOHNO, Hiroki SATO, Shigeharu SHIBAHATA, Daisuke TSUGA
  • Publication number: 20220274643
    Abstract: A steering holding determination device configured to determine whether a driver holds a steering member, the steering holding determination device including: a predicted value calculation unit configured to sequentially calculate a predicted value of a state quantity with reference to a steering torque and an actual measured value of the state quantity, the state quantity being related to a turning angle of a wheel; and a steering holding determination unit configured to determine whether the driver holds the steering member with reference to the predicted value calculated by the predicted value calculation unit and an actual measured value corresponding to the predicted value.
    Type: Application
    Filed: May 19, 2022
    Publication date: September 1, 2022
    Applicant: Hitachi Astemo, Ltd.
    Inventors: Hirokazu FUJIMOTO, Tatsuru NIIHARA, Yoshinori KOHNO, Hiroki SATO, Shigeharu SHIBAHATA, Daisuke TSUGA
  • Patent number: 9275440
    Abstract: An image processing device (100) is configured such that an edge histogram creating section (130) calculates interproximal pixel luminance difference for each of pixels constituting a frame, and a first ratio, which is a ratio of pixels whose interproximal pixel luminance difference is greater than or equal to a first threshold, and an edge enhancement section (140) performs edge enhancement in such a way that a shoot component to be added is smaller for a frame having a larger first ratio.
    Type: Grant
    Filed: April 23, 2013
    Date of Patent: March 1, 2016
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Ichiro Mizobuchi, Akira Koike, Masahiko Takiguchi, Yoshinori Kohno
  • Patent number: 9256924
    Abstract: A video processing device (100) includes: an edge histogram generating section (141) and a noise reducing section (150). The generating section (141) generates an edge histogram of a decoded image obtained from a video signal. The noise reducing section (150) (i) determines whether or not a ratio of a sum of frequencies of classes higher than a predetermined class of an edge histogram to a sum of all frequencies the edge histogram is equal to or greater than a predetermined threshold value and (ii) performs a smoothing process on the decoded image with a smoothing intensity adjusted in accordance with whether or not the ratio is equal to or greater than the predetermined threshold value.
    Type: Grant
    Filed: April 18, 2013
    Date of Patent: February 9, 2016
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Mihoko Watanabe, Akira Koike, Yoshinori Kohno, Shigeki Taniguchi, Masahiko Takiguchi, Ichiro Mizobuchi
  • Publication number: 20150125090
    Abstract: An image processing device (100) is configured such that an edge histogram creating section (130) calculates interproximal pixel luminance difference for each of pixels constituting a frame, and a first ratio, which is a ratio of pixels whose interproximal pixel luminance difference is greater than or equal to a first threshold, and an edge enhancement section (140) performs edge enhancement in such a way that a shoot component to be added is smaller for a frame having a larger first ratio.
    Type: Application
    Filed: April 23, 2013
    Publication date: May 7, 2015
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Ichiro Mizobuchi, Akira Koike, Masahiko Takiguchi, Yoshinori Kohno
  • Publication number: 20150103250
    Abstract: A video processing device (100) includes: an edge histogram generating section (141) and a noise reducing section (150). The generating section (141) generates an edge histogram of a decoded image obtained from a video signal. The noise reducing section (150) (i) determines whether or not a ratio of a sum of frequencies of classes higher than a predetermined class of an edge histogram to a sum of all frequencies the edge histogram is equal to or greater than a predetermined threshold value and (ii) performs a smoothing process on the decoded image with a smoothing intensity adjusted in accordance with whether or not the ratio is equal to or greater than the predetermined threshold value.
    Type: Application
    Filed: April 18, 2013
    Publication date: April 16, 2015
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Mihoko Watanabe, Akira Koike, Yoshinori Kohno, Shigeki Taniguchi, Masahiko Takiguchi, Ichiro Mizobuchi
  • Publication number: 20150085943
    Abstract: On the basis of quantization codes of each separate block and results of motion determination of each separate block, a noise amount calculating section (150) of a video processing device (100) selects at least one noise reduction process that is applied to the target frame from among a plurality of noise reduction processes having different characteristics from each other.
    Type: Application
    Filed: March 22, 2013
    Publication date: March 26, 2015
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Shigeki Taniguchi, Akira Koike, Yoshinori Kohno, Tetsuo Ikeyama, Masahiko Takiguchi, Mihoko Watanabe
  • Patent number: 8737465
    Abstract: Provided is a video processing technique capable of carrying out noise reduction processing and image quality correction using a configuration that is typically used in decoding processing. A video processing device according to the present invention counts the number of blocks in which a quantization parameter in video exceeds a predetermined threshold value and calculates a noise amount in the video based on the count result. Further, an amount by which the noise is to be reduced is adjusted in accordance with the calculated noise amount.
    Type: Grant
    Filed: July 19, 2011
    Date of Patent: May 27, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yoshinori Kohno, Ryohsuke Niizuma
  • Patent number: 8487940
    Abstract: A display device (10) includes: a display section (23) which displays a picture; a user specifying section (130) which specifies a user viewing the display device; an image quality specifying section (170) which, in a case where the user specifying section (130) has specified a plurality of users, (i) obtains, from a recording section which records a plurality of setting values that correspond to user information for discriminating the plurality of users and are used to adjust an image quality, the plurality of setting values that correspond to the respective plurality of users thus specified and (ii) specifies, in accordance with the plurality of setting values thus obtained, a plurality of image qualities of a respective plurality of pictures to be displayed in the display section (23); and an image quality adjustment instructing section (150) which instructs an image quality adjusting section (22) to cause the display section (23) to display the plurality of pictures at the respective plurality of image qu
    Type: Grant
    Filed: March 25, 2011
    Date of Patent: July 16, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yoshinori Kohno, Kohichi Takaku, Kenji Watanabe, Tetsuo Ikeyama, Masahiko Takiguchi, Mihoko Watanabe, Tsuyoshi Ohmori, Hiroaki Okumoto
  • Publication number: 20130107946
    Abstract: Provided is a video processing technique capable of carrying out noise reduction processing and image quality correction using a configuration that is typically used in decoding processing. A video processing device according to the present invention counts the number of blocks in which a quantization parameter in video exceeds a predetermined threshold value and calculates a noise amount in the video based on the count result. Further, an amount by which the noise is to be reduced is adjusted in accordance with the calculated noise amount.
    Type: Application
    Filed: July 19, 2011
    Publication date: May 2, 2013
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Yoshinori Kohno, Ryohsuke Niizuma
  • Patent number: 8373644
    Abstract: In a video display apparatus, a backlight for illuminating a liquid crystal panel is segmented into a plurality of areas. A frequency distribution processing unit calculates a dark pixel amount from the frequency distribution of the gradation values of pixels in a video image. A backlight control unit calculates a lower limit of luminance in each area included in the backlight so that the lower limit increases as the dark pixel amount becomes smaller. The backlight control unit adjusts the luminance in each area individually according to the gradation values in each portion of the video image, and adjusts the luminance in an area where the luminance is less than the lower limit to the lower limit. The difference in luminance between the areas illuminating dark portions of the video image is decreased, and the occurrence of luminance blur resulting from the difference in luminance between the areas is reduced.
    Type: Grant
    Filed: June 24, 2009
    Date of Patent: February 12, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Akira Koike, Kohichi Takaku, Yoshinori Kohno, Shinichi Nagashima, Hideto Yagisawa, Kodai Yamada
  • Publication number: 20130002695
    Abstract: A display device (10) includes: a display section (23) which displays a picture; a user specifying section (130) which specifies a user viewing the display device; an image quality specifying section (170) which, in a case where the user specifying section (130) has specified a plurality of users, (i) obtains, from a recording section which records a plurality of setting values that correspond to user information for discriminating the plurality of users and are used to adjust an image quality, the plurality of setting values that correspond to the respective plurality of users thus specified and (ii) specifies, in accordance with the plurality of setting values thus obtained, a plurality of image qualities of a respective plurality of pictures to be displayed in the display section (23); and an image quality adjustment instructing section (150) which instructs an image quality adjusting section (22) to cause the display section (23) to display the plurality of pictures at the respective plurality of image qu
    Type: Application
    Filed: March 25, 2011
    Publication date: January 3, 2013
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Yoshinori Kohno, Kohichi Takaku, Kenji Watanabe, Tetsuo Ikeyama, Masahiko Takiguchi, Mihoko Watanabe, Tsuyoshi Ohmori, Hiroaki Okumoto
  • Publication number: 20100073276
    Abstract: In a video display apparatus, a backlight for illuminating a liquid crystal panel is segmented into a plurality of areas. A frequency distribution processing unit calculates a dark pixel amount from the frequency distribution of the gradation values of pixels in a video image. A backlight control unit calculates a lower limit of luminance in each area included in the backlight so that the lower limit increases as the dark pixel amount becomes smaller. The backlight control unit adjusts the luminance in each area individually according to the gradation values in each portion of the video image, and adjusts the luminance in an area where the luminance is less than the lower limit to the lower limit. The difference in luminance between the areas illuminating dark portions of the video image is decreased, and the occurrence of luminance blur resulting from the difference in luminance between the areas is reduced.
    Type: Application
    Filed: June 24, 2009
    Publication date: March 25, 2010
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Akira Koike, Kohichi Takaku, Yoshinori Kohno, Shinichi Nagashima, Hideto Yagisawa, Kodai Yamada