Patents by Inventor Tomoyuki Yamamoto

Tomoyuki Yamamoto 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: 20180160144
    Abstract: The amount of processing is reduced with high coding efficiency maintained. There is provided an arithmetic decoding device including syntax decoding means for decoding each of at least a first syntax element and a second syntax element indicating a transform coefficient using arithmetic decoding with a context or arithmetic decoding without a context. The syntax decoding means performs decoding that at least includes not decoding the first syntax element and decoding the second syntax element using the arithmetic decoding without a context, and decoding the first syntax element using the arithmetic decoding with a context and decoding the second syntax element using the arithmetic decoding without a context.
    Type: Application
    Filed: February 1, 2018
    Publication date: June 7, 2018
    Inventors: Tomohiro IKAI, Yukinobu YASUGI, Tomoyuki YAMAMOTO, Takeshi TSUKUBA
  • Patent number: 9992509
    Abstract: While maintaining a high degree of freedom in choosing partition sizes and transformation sizes adapted for local characteristics of videos, the amount of metadata is decreased. A video encoding apparatus (10) divides an input video into blocks of a prescribed size and encodes the video block by block. The video encoding apparatus is provided with: a prediction parameter determining portion (102) that decides the block partition structure; a predictive image producing portion (103) that generates predictive images, partition by partition, as prescribed by the partition structure; a transform coefficient producing portion (107) which applies one of the frequency transformations included in a prescribed transformation preset to prediction residuals, i.e. the differences between predictive images and the input video; a transform restriction deriving portion (104) which generates the list of transform candidate, i.e.
    Type: Grant
    Filed: May 12, 2017
    Date of Patent: June 5, 2018
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Tomoyuki Yamamoto, Tomohiro Ikai
  • Publication number: 20180139465
    Abstract: An image decoding device is equipped with a header information decoding means for decoding profile/level information included in a video parameter set after decoding byte-aligned 16-bit extension information (next_essential_info_byte_offset) in the video parameter set.
    Type: Application
    Filed: December 28, 2017
    Publication date: May 17, 2018
    Inventors: Takeshi TSUKUBA, Tomoyuki YAMAMOTO, Tomohiro IKAI, Yukinobu YASUGI, Sachin G. DESHPANDE
  • Publication number: 20180115780
    Abstract: A hierarchical moving image decoding device (1) includes an inter-layer reference image list setting section (155) that derives an inter-layer reference image list and an inter-layer reference image set used in pictures on a specific target layer based on a parameter set of a target layer.
    Type: Application
    Filed: November 30, 2017
    Publication date: April 26, 2018
    Inventors: Tomoyuki YAMAMOTO, Tomohiro IKAI, Takeshi TSUKUBA, Yukinobu YASUGI
  • Publication number: 20180098067
    Abstract: An adaptive offset filter (60) adds an offset to the pixel value of each pixel forming an input image. The adaptive offset filter (60) refers to offset-type specifying information, sets offset attributes for a subject unit area of the input image, decodes an offset having a bit width corresponding to an offset value range included in the set offset attributes, and adds the offset to the pixel value of each pixel forming the input image.
    Type: Application
    Filed: November 22, 2017
    Publication date: April 5, 2018
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Takanori YAMAZAKI, Tomohiro Ikai, Tomoyuki YAMAMOTO, Yukinobu YASUGI
  • Publication number: 20180093378
    Abstract: A production system includes a robot, a robot controller, and a person detection part. The controller includes first speed comparison unit that has the function of activating a power cutoff unit so as to stop an operation of the robot when a current speed exceeds a predetermined reference speed; and an external-force comparison unit that has the function of activating the power cutoff unit so as to stop the operation of the robot when a current force applied to the robot exceeds a predetermined reference force. The controller disables the functions of the first speed comparison unit and the external-force comparison unit while the person detection part detects the absence of the operator in the cooperative operation space.
    Type: Application
    Filed: September 20, 2017
    Publication date: April 5, 2018
    Inventors: Tomoyuki YAMAMOTO, Nao OOSHIMA
  • Patent number: 9930331
    Abstract: A moving image decoder (1) includes an intermediate estimated prediction mode deriving section (124) for transforming a prediction mode of each neighbor partition into an intermediate prediction mode included in an intermediate prediction set which is a sum of prediction sets (PS); and an estimated prediction mode deriving section (125) for deriving an estimated prediction mode by estimating a prediction mode of a target partition based on the intermediate prediction mode of each neighbor partition which is obtained by the transform.
    Type: Grant
    Filed: July 14, 2011
    Date of Patent: March 27, 2018
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Tomoyuki Yamamoto, Tomohiro Ikai
  • Patent number: 9912959
    Abstract: A hierarchical moving image decoding device (1) includes an inter-layer reference image list setting section (155) that derives an inter-layer reference image list and an inter-layer reference image set used in pictures on a specific target layer based on a parameter set of a target layer.
    Type: Grant
    Filed: March 26, 2014
    Date of Patent: March 6, 2018
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Tomoyuki Yamamoto, Tomohiro Ikai, Takeshi Tsukuba, Yukinobu Yasugi
  • Publication number: 20180063541
    Abstract: A reference picture information decoding unit (13) omits decoding of a reference list sorting presence or absence flag and/or a reference list sorting order based on the number of current picture referable pictures.
    Type: Application
    Filed: October 20, 2017
    Publication date: March 1, 2018
    Inventors: Tomoyuki Yamamoto, Tomohiro Ikai, Yukinobu Yasugi, Takeshi Tsukuba
  • Publication number: 20180059657
    Abstract: A cell controller includes a first communication unit which receives a task program and signal setting information stored in each manufacturing machine from this manufacturing machine, a stop detection unit which refers to the task program and the signal setting information to detect whether a production facility has stopped operation, and a stop cause identification unit which analyzes the task program and the signal setting information to identify the manufacturing machine that has caused the operation stop of the production facility, and this cause. Such a cell controller can detect whether a production facility including manufacturing machines has stopped operation, and automatically identify the manufacturing machine that has caused this operation stop, and this cause.
    Type: Application
    Filed: August 23, 2017
    Publication date: March 1, 2018
    Inventors: Toshiaki KAMOI, Hiromitsu TAKAHASHI, Tomoyuki YAMAMOTO
  • Patent number: 9898815
    Abstract: A fault diagnostic device comprises an arithmetic processing device configured to judge a fault on the basis of an image captured by the camera. The arithmetic processing device includes an imaging command part configured to transmit a command for capturing the image of a diagnosis portion and a judgement part configured to judge whether or not the diagnosis portion has the fault. A storage part stores a reference image when the diagnosis portion is in a normal state. The imaging command part transmits an imaging command so as to capture the image of the diagnosis portion after changing a position and a posture of the robot. The judgement part compares the image of the diagnosis portion captured by the camera with the reference image and judges the fault in the diagnosis portion.
    Type: Grant
    Filed: February 7, 2017
    Date of Patent: February 20, 2018
    Assignee: FANUC CORPORATION
    Inventors: Tomoyuki Yamamoto, Hiromitsu Takahashi
  • Patent number: 9894373
    Abstract: An image decoding device is equipped with a header information decoding means for decoding profile/level information included in a video parameter set after decoding byte-aligned 16-bit extension information (next_essential_info_byte_offset) in the video parameter set.
    Type: Grant
    Filed: September 12, 2013
    Date of Patent: February 13, 2018
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Takeshi Tsukuba, Tomoyuki Yamamoto, Tomohiro Ikai, Yukinobu Yasugi, Sachin G. Deshpande
  • Patent number: 9866833
    Abstract: An adaptive offset filter (60) adds an offset to the pixel value of each pixel forming an input image. The adaptive offset filter (60) refers to offset-type specifying information, sets offset attributes for a subject unit area of the input image, decodes an offset having a bit width corresponding to an offset value range included in the set offset attributes, and adds the offset to the pixel value of each pixel forming the input image.
    Type: Grant
    Filed: October 13, 2016
    Date of Patent: January 9, 2018
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Takanori Yamazaki, Tomohiro Ikai, Tomoyuki Yamamoto, Yukinobu Yasugi
  • Patent number: 9866856
    Abstract: A reference picture information decoding unit (13) omits decoding of a reference list sorting presence or absence flag and/or a reference list sorting order based on the number of current picture referable pictures.
    Type: Grant
    Filed: February 1, 2016
    Date of Patent: January 9, 2018
    Assignee: Dolby International AB
    Inventors: Tomoyuki Yamamoto, Tomohiro Ikai, Yukinobu Yasugi, Takeshi Tsukuba
  • Patent number: 9832465
    Abstract: An image encoding device includes a first prediction parameter determination section (53) for selecting, for each of prediction units belonging to a first group, a prediction parameter from a basic set; a second prediction parameter determination section (55) for selecting, for each of prediction units belonging to a second group, a prediction parameter from a reduced set (i) including at least a part of the prediction parameter(s) selected by the first prediction parameter determination section (53) and (ii) is constituted by a prediction parameter(s), the number of which is not more than the number of prediction parameters included in the basic set; and a prediction parameter encoding section (243) for encoding (i) information indicating which one of prediction parameters is selected by the first prediction parameter determination section (53) and (ii) information indicating which one of prediction parameters is selected by the second prediction parameter determination section (55).
    Type: Grant
    Filed: December 27, 2010
    Date of Patent: November 28, 2017
    Assignee: SHARP KABUSHIKI KAISHA
    Inventor: Tomoyuki Yamamoto
  • Patent number: 9813713
    Abstract: A coefficient presence/absence flag decoding unit, included in a quantized residual information decoding unit which reduces a processing amount related to coding and decoding of a transform coefficient, splits a target frequency domain or a target pixel domain into sub-blocks, and derives different context indexes with respect to each transform coefficient in a pixel domain, obtained through a transform skip or a transform/quantization bypass, and each transform coefficient which is obtained for each frequency component through frequency transform.
    Type: Grant
    Filed: October 19, 2016
    Date of Patent: November 7, 2017
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Takeshi Tsukuba, Tomohiro Ikai, Tomoyuki Yamamoto
  • Patent number: 9808934
    Abstract: A robot control apparatus includes a stop command unit which stops a robot. A first external force judgement value smaller than a stop judgement value and a second external force judgement value smaller than the first external force judgement value are previously determined. The stop command unit inhibits a restart of execution of an operation program when, in a state where the execution of the operation program is temporarily stopped, an external force is continuously equal to or less than the first external force judgement value during a period of a first time length, and additionally, the external force continuously exceeds the second external force judgement value during a period of a second time length.
    Type: Grant
    Filed: February 29, 2016
    Date of Patent: November 7, 2017
    Assignee: FANUC CORPORATION
    Inventors: Takumi Oyama, Tomoyuki Yamamoto
  • Publication number: 20170310991
    Abstract: To achieve a reduction in the amount of coding taken in the use of an asymmetric partition and to implement efficient encoding/decoding processes exploiting the characteristics of the asymmetric partition. An image decoding device includes a motion compensation parameter derivation unit configured to derive a motion compensation parameter indicating either a uni-prediction scheme or a bi-prediction scheme. In a case that a prediction unit has a size less than or equal to a predetermined value, the motion compensation parameter derivation unit is configured to derive the motion compensation parameter by switching between the prediction schemes.
    Type: Application
    Filed: July 6, 2017
    Publication date: October 26, 2017
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Tomoyuki YAMAMOTO, Tomohiro IKAI, Yukinobu YASUGI
  • Patent number: 9794584
    Abstract: In a case that a pixel shape in a luma domain is not similar to a pixel shape in a chroma domain in an input image, a prediction image that is generated in the reuse of a luma prediction mode is made more accurate. A moving image decoding apparatus 1 includes a gradient deriving unit 1453B that references a chroma gradient definition DEFANG1C, and derives a chroma prediction direction from a prediction mode based on a luma prediction direction.
    Type: Grant
    Filed: February 7, 2017
    Date of Patent: October 17, 2017
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Yukinobu Yasugi, Tomoyuki Yamamoto, Tomohiro Ikai, Takeshi Tsukuba
  • Publication number: 20170274528
    Abstract: A robot system is provided with a robot including a combination of mechanical units serving as multiple modules, a robot control device that controls the robot, and a memory provided in each of the mechanical units. In the memory, a shape model and a parameter for estimating the coasting distance of the robot are stored beforehand, the shape model indicating the shape of the mechanical unit.
    Type: Application
    Filed: March 22, 2017
    Publication date: September 28, 2017
    Inventors: Gou INABA, Tomoyuki YAMAMOTO