Patents by Inventor Akira Nakagawa

Akira Nakagawa 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: 8509307
    Abstract: When a prediction is made between fields with different parity, the predicative efficiency of a chrominance vector is improved by adaptively switching the generation of a chrominance motion vector depending on a encoding/decoding field parity (top/bottom) and a reference field parity (top/bottom), and the coding efficiency is improved accordingly.
    Type: Grant
    Filed: April 1, 2010
    Date of Patent: August 13, 2013
    Assignee: Fujitsu Limited
    Inventors: Akira Nakagawa, Hidenobu Miyoshi
  • Publication number: 20130171226
    Abstract: There has been a problem such that if a water-based pesticidal suspension containing, as an active ingredient, an agricultural chemical having a high aqueous solubility, particularly an agricultural chemical having an aqueous solubility exceeding 500 mg/L at 20° C., is stored for a long period of time, the active ingredient particles tend to grow and become coarse, whereby a stabilized suspension is hardly obtainable. To solve such a problem, the present invention provides a water-based pesticidal suspension comprising (a) an agricultural chemical or its salt having an aqueous solubility of from 500 mg/L to 6,000 mg/L at 20° C., (b) a polycarboxylate type surfactant, (c) a sulfonate type surfactant, and (d) water.
    Type: Application
    Filed: July 5, 2011
    Publication date: July 4, 2013
    Applicant: ISHIHARA SANGYO KAISHA LTD.
    Inventors: Takao Awazu, Mitsuo Sano, Akira Nakagawa
  • Publication number: 20130128976
    Abstract: A method includes extracting a first vector used to code a specific block belonging to a coded field picture arranged chronologically adjacent to a field picture to be coded and to a block to be coded, generating a second vector by scaling the first vector based on a temporal distance between the field picture and a second picture specified by a reference index and referenced for the block and included in the field picture and a temporal distance between a first picture pointed by the first vector and the coded field picture arranged chronologically adjacent to the field picture, and correcting the second vector based on a parity of the field picture, a parity of the first picture, a parity of the second picture and a parity of the coded field picture and forming the corrected second vector.
    Type: Application
    Filed: September 4, 2012
    Publication date: May 23, 2013
    Applicant: FUJITSU LlMITED
    Inventors: Junpei Koyama, Akihiro Yamori, Kimihiko Kazui, Satoshi Shimada, Akira Nakagawa
  • Patent number: 8445415
    Abstract: There is provided a grease composition, including: a base oil; a metal soap thickener formed of at least one metal selected from the group consisting of lithium, calcium, magnesium and aluminum and a fatty acid containing at least one selected from the group consisting of a hydroxyl group, a carboxyl group and a carboxylic acid metal salt group in each molecular structure; and nanoparticles formed of at least one selected from the group consisting of oxides, carbides and diamond materials.
    Type: Grant
    Filed: July 14, 2009
    Date of Patent: May 21, 2013
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Yutaka Mabuchi, Akira Nakagawa
  • Publication number: 20130107958
    Abstract: A video decoding apparatus according to one aspect of the disclosure performs a decoding process, on a process block basis, using a motion vector of the process block and prediction information candidates of the motion vector.
    Type: Application
    Filed: September 12, 2012
    Publication date: May 2, 2013
    Applicant: FUJITSU LIMITED
    Inventors: Satoshi SHIMADA, Kimihiko KAZUI, Junpei KOYAMA, Akira NAKAGAWA
  • Patent number: 8428131
    Abstract: A video encoder that encodes each of a plurality of blocks obtained by dividing an input image, includes: a definition unit configured to define a valid area which is allowed to be used as reference in a reference image in interframe coding; a detection unit configured to detect a reference area in the reference image for a target block; a predicted image generation unit configured to generate a predicted image by outputting an image of the reference area for the reference area belonging to the valid area and outputting a complementary image for the reference area not belonging to the valid area; and a coding unit configured to encode the input image using the predicted image, wherein valid area information indicating the valid area is transmitted to a video decoder, for each group of a plurality of blocks.
    Type: Grant
    Filed: March 12, 2010
    Date of Patent: April 23, 2013
    Assignee: Fujitsu Limited
    Inventors: Satoshi Shimada, Akira Nakagawa, Akihiro Yamori, Chikara Imajo
  • Patent number: 8428138
    Abstract: A prediction error generating unit generates a predictive vector from the motion vectors of a plurality of adjacent blocks, and obtains a difference from a target vector. A plurality of variable-length coding units respectively encode the output of the prediction error generating unit with different encoding methods. A determining unit estimates the accuracy of the predictive vector generated by the prediction error generating unit based on the degrees of non-uniformity of the motion vectors of the plurality of adjacent blocks. A selecting unit selects one of the encoding results obtained by the plurality of variable-length coding units.
    Type: Grant
    Filed: November 23, 2010
    Date of Patent: April 23, 2013
    Assignee: Fujitsu Limited
    Inventors: Akira Nakagawa, Taizo Anan, Eishi Morimatsu, Takashi Itoh
  • Patent number: 8406292
    Abstract: A moving picture editing apparatus includes a picture extracting unit that extracts pictures of a predetermined range including a picture subsequent to a coupling point from encoded data to be coupled; an adjustment-information generating unit that generates adjustment information for adjusting values of information to be continuous from/to inside to/from outside the predetermined range upon decoding, from among information included in headers of the pictures of the predetermined range extracted by the picture extracting unit; and a re-encoding unit that adds the adjustment information generated by the adjustment-information generating unit to the headers of the pictures of the predetermined range extracted by the picture extracting unit, and re-encodes the pictures of the predetermined range.
    Type: Grant
    Filed: August 4, 2009
    Date of Patent: March 26, 2013
    Assignee: Fujitsu Limited
    Inventors: Satoshi Shimada, Akira Nakagawa, Akihiro Yamori
  • Patent number: 8385407
    Abstract: In a decoding apparatus in accordance with H.264, when the POC type is determined as “1” and a recovery point SEI is detected, the maximum frame number MaxFrameNum (or its integral multiple) is set as the initial value of the frame number offset (FrameNumOffset).
    Type: Grant
    Filed: December 29, 2008
    Date of Patent: February 26, 2013
    Assignee: Fujitsu Limited
    Inventors: Akira Nakagawa, Shunsuke Kobayashi, Bahavani Lalitha Susarla
  • Publication number: 20130044808
    Abstract: A encoding device includes a boundary pixel prediction value generation unit, boundary pixel prediction error estimation unit, and a quantized coefficient encoding unit. The boundary pixel prediction value generation unit generates a boundary pixel prediction value as a prediction value of a boundary pixel adjacent to an encoded block in the encoding block from a locally decoded image of a plurality of encoded blocks adjacent to the encoding block. The boundary pixel prediction error estimation unit generates boundary pixel prediction error estimation information from the boundary pixel prediction value and the encoding block prediction image with respect to the boundary pixel. The quantized coefficient encoding unit generates encoding block entropy encoded data from the quantized coefficients and the boundary pixel prediction error estimation information.
    Type: Application
    Filed: August 9, 2012
    Publication date: February 21, 2013
    Applicant: FUJITSU LIMITED
    Inventors: Akira Nakagawa, Kimihiko Kazui, Hidenobu Miyoshi, Junpei Koyama
  • Patent number: 8364019
    Abstract: A video decoding device includes a decoder configured to decode a plurality of separate partial areas of each of pictures included in encoded video data and a motion vector indicating a positional relationship between each of the partial areas and a partial area of a different picture referenced in order to encode the partial area; an error detector configured to detect, as an error area, a partial area that is unable to be decoded by the decoder from among the plurality of partial areas; a referenced area determiner configured to determine a referenced area of a third picture that has already been decoded, the referenced area corresponding to the error area; a concealment unit configured to conceal the error area using data included in the referenced area; and an image integrator configured to reproduce the first picture.
    Type: Grant
    Filed: May 19, 2010
    Date of Patent: January 29, 2013
    Assignee: Fujitsu Limited
    Inventors: Akihiro Yamori, Akira Nakagawa
  • Publication number: 20130010870
    Abstract: A video encoder includes: a motion compensation picture signal generator that generates a plurality of motion compensation picture signals in accordance with an encoding target signal and a plurality of reference pictures; a prediction signal generator that generates a prediction signal of the encoding target signal using the motion compensation picture signals; a prediction error signal generator that generates a prediction error signal representing a difference between the encoding target signal and the prediction signal; a selector that selects an entropy code assignment rule that is expected to minimize an information amount of an encoded state of the prediction error signal from a plurality of entropy code assignment rules for encoding the prediction error signal in accordance with the motion compensation picture signals; and an entropy encoder that generates encoded information from the prediction error signal in accordance with the selected entropy code assignment rule.
    Type: Application
    Filed: July 3, 2012
    Publication date: January 10, 2013
    Applicant: FUJITSU LIMITED
    Inventors: Hidenobu MIYOSHI, Akira Nakagawa
  • Patent number: 8345759
    Abstract: A prediction error generating unit generates a predictive vector from the motion vectors of a plurality of adjacent blocks, and obtains a difference from a target vector. A plurality of variable-length coding units respectively encode the output of the prediction error generating unit with different encoding methods. A determining unit estimates the accuracy of the predictive vector generated by the prediction error generating unit based on the degrees of non-uniformity of the motion vectors of the plurality of adjacent blocks. A selecting unit selects one of the encoding results obtained by the plurality of variable-length coding units.
    Type: Grant
    Filed: May 4, 2007
    Date of Patent: January 1, 2013
    Assignee: Fujitsu Limited
    Inventors: Akira Nakagawa, Taizo Anan, Eishi Morimatsu, Takashi Itoh
  • Publication number: 20120327020
    Abstract: A touch panel-equipped display device (1) includes: a TFT substrate (2); a CF substrate (3) facing the TFT substrate (2); a liquid crystal layer (4) provided between the TFT substrate (2) and the CF substrate (3); a touch panel conductive film (6) provided on a surface (3a) of the CF substrate (3) opposite the liquid crystal layer (4); and a display region (D) including a transmissive region (Db) through which light (L) passes, and a non-transmissive region (Da) through which the light does not pass. The conductive film (6) includes a wire (6a), and an opening (6b) surrounded by the wire (6a) is formed in the conductive film (6). The wire (6a) is arranged in the non-transmissive region (Da), and the opening (6b) is formed in the transmissive region (Db).
    Type: Application
    Filed: March 1, 2011
    Publication date: December 27, 2012
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Yasuhiro Kohara, Akira Nakagawa, Hidekazu Ohshima, Tohru Sakata
  • Patent number: 8340184
    Abstract: A prediction error generating unit generates a predictive vector from the motion vectors of a plurality of adjacent blocks, and obtains a difference from a target vector. A plurality of variable-length coding units respectively encode the output of the prediction error generating unit with different encoding methods. A determining unit estimates the accuracy of the predictive vector generated by the prediction error generating unit based on the degrees of non-uniformity of the motion vectors of the plurality of adjacent blocks. A selecting unit selects one of the encoding results obtained by the plurality of variable-length coding units.
    Type: Grant
    Filed: March 14, 2007
    Date of Patent: December 25, 2012
    Assignee: Fujitsu Limited
    Inventors: Akira Nakagawa, Taizo Anan, Eishi Morimatsu, Takashi Itoh
  • Publication number: 20120320980
    Abstract: A video decoding apparatus includes a motion vector information storing unit configured to store motion vectors of blocks in previously-decoded pictures and a temporally-adjacent vector predictor generating unit. The temporally-adjacent vector predictor generating unit includes a block determining unit configured to determine multiple blocks in a picture that is temporally adjacent to a picture including a target block to be processed, the determined blocks including a block that is closest to first coordinates in the target block; a vector selecting unit configured to obtain motion vectors of the determined blocks from the motion vector information storing unit and select at least one motion vector from the obtained motion vectors; and a generating unit configured to generate a vector predictor candidate, which is used for a decoding process of the target block, based on the selected motion vector.
    Type: Application
    Filed: May 15, 2012
    Publication date: December 20, 2012
    Applicant: FUJITSU LIMITED
    Inventors: Satoshi SHIMADA, Akira Nakagawa, Kimihiko Kazui, Junpei Koyama
  • Publication number: 20120320981
    Abstract: A video decoding apparatus includes a reference picture list storing unit configured to store picture information of pictures; a motion vector information storing unit configured to store motion vector information including motion vectors of blocks that are spatially and temporally adjacent to a target block to be decoded and reference picture identifiers indicating pictures that the motion vectors refer to; and a vector predictor generating unit configured to scale a vector predictor candidate for a motion vector of the target block based on the picture information and the motion vector information and to correct the scaled vector predictor candidate toward 0 by a predetermined amount.
    Type: Application
    Filed: May 24, 2012
    Publication date: December 20, 2012
    Applicant: FUJITSU LIMITED
    Inventors: Satoshi SHIMADA, Akira NAKAGAWA, Kimihiko KAZUI, Junpei KOYAMA
  • Patent number: 8306338
    Abstract: A moving-picture coding device that performs inter-field motion compensation prediction, includes a reference limit area determining unit that determines to select, for each reference picture, with respect to reference pictures used for coding, a luminance or chrominance reference limit area putting a limit to a reference picture used for generating a prediction picture of a luminance or chrominance of a coding target block belonging to the coding target picture limit area of the case upon each reference picture being previously coded; a selecting inhibit vector determining unit that determines, in a case of coding the coding block belonging to the coding target picture limit area, a selecting inhibit vector that inhibits selecting a luminance and the chrominance are comprised only of pixels of the luminance reference limit area and the chrominance reference limit area.
    Type: Grant
    Filed: July 10, 2008
    Date of Patent: November 6, 2012
    Assignee: Fujitsu Limited
    Inventors: Akira Nakagawa, Hidenobu Miyoshi, Kimihiko Kazui, Hisanari Kimura
  • Publication number: 20120263237
    Abstract: A video encoder includes: a motion compensation signal generator to generate a plurality of motion compensation signals in accordance with an encoding target signal and a plurality of reference pictures; a prediction signal generator to generate a prediction signal of the encoding target signal by utilizing the plurality of motion compensation signals; a prediction error signal generator to generate a prediction error signal; a selector to select, from among a plurality of generation rules for generating encoded information of the prediction error signal, a generation rule that is expected to reduce an information amount of an encoded state of the prediction error signal, in accordance with the plurality of motion compensation signals; and an encoded information generator to generate encoded information of the prediction error signal in accordance with the generation rule selected by the selector.
    Type: Application
    Filed: June 22, 2012
    Publication date: October 18, 2012
    Applicant: FUJITSU LIMITED
    Inventors: Junpei KOYAMA, Akira NAKAGAWA
  • Publication number: 20120263238
    Abstract: A video encoder includes: a motion compensation picture signal generator to generate a plurality of motion compensation picture signals in accordance with an encoding target signal and a plurality of reference pictures; a prediction signal generator to generate a prediction signal of the encoding target signal by utilizing the plurality of motion compensation picture signals; a prediction error signal generator to generate a prediction error signal; a selector to select, from among a plurality of scan patterns prepared for generating encoded information from the prediction error signal, a scan pattern that is expected to minimize an information amount of an encoded state of the prediction error signal, in accordance with the plurality of motion compensation picture signals; and a zigzag scanner to generate encoded information from the prediction error signal by using the scan pattern selected by the selector.
    Type: Application
    Filed: June 22, 2012
    Publication date: October 18, 2012
    Applicant: FUJITSU LIMITED
    Inventors: Hidenobu Miyoshi, Akira Nakagawa