Patents by Inventor Takeshi Tanaka

Takeshi Tanaka 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: 9744855
    Abstract: A vehicle auxiliary power supply that is mounted on a railway vehicle, includes a three-phase inverter circuit that converts DC power or AC power input from an overhead line to desired AC power to supply the AC power to a load, and is connected in parallel with a VVVF inverter device that drives a propulsion motor, wherein a blocking diode that prevents backflow from a side of the three-phase inverter circuit to a side of the overhead line is provided between the overhead line and the three-phase inverter circuit, and a SiC Schottky barrier diode is applied to the blocking diode.
    Type: Grant
    Filed: June 30, 2011
    Date of Patent: August 29, 2017
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventor: Takeshi Tanaka
  • Patent number: 9743079
    Abstract: An image processing apparatus includes: a first storing unit for storing a plurality of prediction parameters used in predictive image generation for a plurality of prediction units corresponding in size to at least one picture; a second storing unit for storing two or more prediction parameters used in predictive image generation for two or more prediction units among the plurality of prediction units; and a transferring unit configured to collectively transfer, for predictive image generation, (i) two or more of the prediction parameters from the first storing unit to the second storing unit or collectively transfer (ii) the two or more prediction parameters used in the predictive image generation for the two or more prediction units from the second storing unit to the first storing unit.
    Type: Grant
    Filed: November 22, 2012
    Date of Patent: August 22, 2017
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Hiroshi Amano, Takeshi Tanaka, Kenji Oga
  • Publication number: 20170238016
    Abstract: An image processing apparatus for decoding an image coded in coding processes including (i) prediction on at least one prediction unit (PU) and (ii) frequency transform on transform units (TUs) included in a region including the at least one PU includes a processing unit configured to perform image processing for a predictive image of the at least one PU, depending on a transform order predetermined for the TUs.
    Type: Application
    Filed: May 4, 2017
    Publication date: August 17, 2017
    Inventors: Hiroshi AMANO, Takeshi TANAKA, Kenji OGA
  • Patent number: 9731672
    Abstract: A utility vehicle includes a pair of right and left front wheels, a pair of right and left rear wheels, a main frame positioned between the front wheels and the rear wheels and defining a cabin in the main frame, and a cabin front wall defining a front end of the cabin. The cabin front wall includes a cabin front wall body separating the cabin and a bonnet chamber provided ahead of the cabin, and includes a wheel housing wall separating between the cabin and each of right and left front wheel housings. The utility vehicle further includes a cabin guard covering an outer surface of the cabin front wall body.
    Type: Grant
    Filed: April 6, 2016
    Date of Patent: August 15, 2017
    Assignee: KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Hideyoshi Kosuge, Kazumasa Hisada, Masato Kinoshita, Masayuki Shibata, Ryo Nishio, Yuichi Fujii, Takeshi Tanaka, Takuma Komatsu, Hirotaka Fujiki
  • Publication number: 20170228159
    Abstract: According to one embodiment, a memory system includes a controller. The controller controls throttling to make a performance value of the memory system fall between a first performance value and a second performance value. The throttling limits the number of times of accesses per unit time to a nonvolatile memory. The first performance value is calculated based on a third performance value of the memory system and is greater than the third performance value. The third performance value is a value which is expected to be reached at a time when a first period has elapsed since the memory system started being used if throttling is not performed. The second performance value is provided between the first performance value and the third performance value.
    Type: Application
    Filed: June 28, 2016
    Publication date: August 10, 2017
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Takeshi TANAKA, Kenichi IWAI, Maoko OYAMADA
  • Publication number: 20170219661
    Abstract: There is provided a magnetic noise rejection apparatus which includes: a plurality of cancellation coils arranged near a target object; a plurality of magnetic sensors disposed inside the respective cancellation coils; an adder circuit configured to take a sum of outputs of the plurality of magnetic sensors; and a feedback control circuit configured to supply the cancellation coils with such a common feedback drive current that the sum of the outputs of the magnetic sensors is equal to a sum of outputs of the magnetic sensors under a zero magnetic field.
    Type: Application
    Filed: December 22, 2016
    Publication date: August 3, 2017
    Inventors: Yoshiyuki Hata, Yuji Ogata, Takeshi Tanaka, Toshiaki Hayakawa
  • Patent number: 9723308
    Abstract: An image processing apparatus capable of reducing a capacity of a storage element includes: a first variable-length decoding unit that sequentially outputs, for each first unit of processing, one or more components included in the first unit of processing, by performing a first process on a coded stream; a reordering unit that sequentially outputs, for each second unit of processing different from the first unit of processing, one or more components included in the second unit of processing, by reordering the components outputted from the first variable-length decoding unit; and a second inverse quantization unit that performs a second process on the components outputted from the reordering unit, for each second unit of processing.
    Type: Grant
    Filed: December 5, 2012
    Date of Patent: August 1, 2017
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Kenji Oga, Hiroshi Amano, Takeshi Tanaka
  • Patent number: 9712007
    Abstract: A rotor core includes a laminated steel body including a plurality of magnetic core plates stacked one above another. The core plates extend in a direction perpendicular or substantially perpendicular to a vertical center axis. The rotor core includes a plurality of magnetic pole portions arranged along a circumferential direction. At least some of the core plates include claws protruding from the magnetic pole portions in the circumferential direction and outer connection portions arranged radially outward of the claws to interconnect the magnetic pole portions adjoining to each other. The claws restrain the magnets from being displaced radially outward by centrifugal forces. In addition, the outer connection portions restrain the rotor core from being deformed by centrifugal forces. The outer connection portions restrain the claws from being displaced by centrifugal forces so as to further restrain displacement of the magnets.
    Type: Grant
    Filed: September 7, 2012
    Date of Patent: July 18, 2017
    Assignee: NIDEC CORPORATION
    Inventor: Takeshi Tanaka
  • Patent number: 9697004
    Abstract: A Very Long Instruction Word (VLIW) processor having an instruction set with a reduced size resulting in a small number of bits being necessary to specify registers. The VLIW processor includes a register file, and first through third operation units, and executes a very long instruction word. Further, the very long instruction word includes a register specifying field which specifies a least one of the registers in the register file and a plurality of instructions. The operand of each instruction includes bits src1, src2, and dst, which indicate whether or not the registers specified by the register specifying field are to be used as the source register and the destination register.
    Type: Grant
    Filed: April 8, 2014
    Date of Patent: July 4, 2017
    Assignee: SOCIONEXT INC.
    Inventors: Takahiro Kageyama, Hideshi Nishida, Takeshi Tanaka, Kouji Nakajima
  • Patent number: 9690875
    Abstract: Search results are provided for mobile computing devices. Search results are retrieved based on a search term. Each of the search results is assigned to one or more categories. The categories and the assigned search results are provided to the mobile computing device. The mobile computing device is adapted to display each of the categories and a partial list of the search results for each of the categories.
    Type: Grant
    Filed: January 6, 2012
    Date of Patent: June 27, 2017
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Tuan Huynh, Hiromi Kobayashi, Takeshi Tanaka, Hirokazu Sawada, Tsutomu Kagoshima
  • Publication number: 20170179842
    Abstract: A vehicle auxiliary power supply device mounted in an electric rolling stock and that includes a converter device to convert DC power supplied from a DC power supply into desired DC power, and a three-phase inverter to convert the DC power supplied from the converter device into three-phase AC power and to supply the converted power to a load, wherein a switching element of the three-phase inverter is constituted by a semiconductor module formed of a wide bandgap semiconductor.
    Type: Application
    Filed: July 18, 2014
    Publication date: June 22, 2017
    Applicant: Mitsubishi Electric Corporation
    Inventors: Takeshi TANAKA, Yukio NAKASHIMA
  • Patent number: 9674528
    Abstract: An image processing apparatus for decoding an image coded in coding processes including (i) prediction on at least one prediction unit (PU) and (ii) frequency transform on transform units (TUs) included in a region including the at least one PU includes a processing unit configured to perform image processing for a predictive image of the at least one PU, depending on a transform order predetermined for the TUs.
    Type: Grant
    Filed: August 22, 2012
    Date of Patent: June 6, 2017
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Hiroshi Amano, Takeshi Tanaka, Kenji Oga
  • Patent number: 9667972
    Abstract: When compression encoding processing of an image is performed in units of macroblocks using a pipeline structure, an application of a skip mode or the like according to MPEG4AVC to compression encode an encoding target block requires motion vectors and the like of adjacent blocks of the encoding target block. However, depending on a structure of the pipeline stages, the motion vectors may not be determined. In such cases, the skip mode cannot be applied to compression encode the encoding target block. This problem can be solved by (i) calculating all motion information candidates, of the encoding target block, corresponding to all motion information selectable by a previous block of the encoding target block, and (ii) selecting, as the motion information of the encoding target block in the skip mode, the motion information corresponding to the motion information determined for the previous block.
    Type: Grant
    Filed: November 28, 2014
    Date of Patent: May 30, 2017
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Hiroshi Amano, Takeshi Tanaka, Masaki Maeda, Kenjiro Tsuda, Masayasu Iguchi, Youji Shibahara
  • Patent number: 9641868
    Abstract: A moving image decoding apparatus which enables reduction in the memory bandwidth and the memory access latency for the motion compensation filter coefficients for use in inter-picture prediction involving motion compensation using variable coefficients includes: a decoding unit (101) which decodes, from a coded stream, a plurality of motion compensation filter coefficients; a memory (109) for holding the motion compensation filter coefficients included in the coded stream; a filter coefficient storage unit (103) for holding at least one of the motion compensation filter coefficients which is required for the motion compensation; a motion compensation unit (107) which performs motion compensation using the required motion compensation filter coefficient held in the filter coefficient storage unit; and a filter coefficient transfer control unit (102) which writes, in the memory, the motion compensation filter coefficients decoded by the decoding unit, and transfers the required motion compensation filter coeff
    Type: Grant
    Filed: February 24, 2015
    Date of Patent: May 2, 2017
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Hiroshi Amano, Takeshi Tanaka, Takashi Hashimoto, Yoshiteru Hayashi
  • Publication number: 20170048541
    Abstract: With use of a simplified program or calculating device for motion compensation, a video decoding device decodes video data compressed by motion detection operations on macroblock units, as in the MPEG-4AVC standard. The video decoding device splits compressed data blocks of the prescribed size, 16×16 pixels for instance, to generate sub-blocks, which are smaller than the blocks and on which the video decoding device is able to execute motion compensation operations. The video decoding device duplicates a motion vector assigned to a given block to generate an many motion vectors as there are sub-blocks in the given block, and executes motion compensation on each sub-block using the corresponding duplicate motion vector. Data resulting from the motion compensation operation on each sub-block is combined to obtain a target block corresponding to the given block.
    Type: Application
    Filed: October 31, 2016
    Publication date: February 16, 2017
    Inventors: Hiroshi Amano, Takeshi Tanaka, Kouji Nakajima, Eiji Otomura
  • Publication number: 20170019676
    Abstract: An image coding method for improving coding efficiency by using more appropriate probability information is provided. The image coding method includes: a first coding step of coding a first set of blocks included in a first region sequentially based on first probability information; and a second coding step of coding a second set of blocks included in a second region sequentially based on second probability information. In the first coding step, the first probability information is updated depending on data of a target block to be coded, after coding the target block and before coding a next target block. In the second coding step, the second probability information is updated depending on the first probability information updated in the first coding step, before coding the first target block.
    Type: Application
    Filed: September 30, 2016
    Publication date: January 19, 2017
    Inventors: Takeshi TANAKA, Hisao SASAI
  • Patent number: 9537389
    Abstract: Provided is an inverter device that can reduce high-frequency noise. The inverter device includes a transformer for converting the voltage of the AC power output from an inverter circuit and outputting the resulting power. Each of first to third coil sections for converting the voltage of the AC power output from the inverter circuit and outputting the resulting power includes an inner coil respectively wound around first to third core sections and an outer coil. The first to third core sections are each column shaped having an axis in the Y direction, and are arranged in the Z direction. Non-magnetic pressing members are provided between the adjacent coil sections and between the adjacent coil sections. The pressing members press against the adjacent coil sections and the adjacent coil sections respectively.
    Type: Grant
    Filed: October 19, 2012
    Date of Patent: January 3, 2017
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Yoshinobu Koji, Takeshi Tanaka, Takeshi Nagata
  • Publication number: 20160363607
    Abstract: An analysis system includes a storage module for storing a track indicating in time series a position of an individual that is moving as track data and for storing sensor data indicating in time series a measurement result of the individual by a sensor worn by the individual, a speed calculation module for calculating a speed index indicating a movement speed of the individual based on the track data, an index calculation module for calculating a behavior index indicating a movement intensity of the individual based on the sensor data, a similarity degree calculation module for calculating a degree of similarity between the speed index and the behavior index based on changes in time series of the speed index and the behavior index, and an association module for associating the track and the individual on which the sensor data has been measured based on the degree of similarity.
    Type: Application
    Filed: March 18, 2016
    Publication date: December 15, 2016
    Inventors: Shimpei AIHARA, Takeshi TANAKA
  • Patent number: 9520802
    Abstract: A power semiconductor module applied to a power converting apparatus for a railway car includes an element pair formed by connecting an IGBT and an SiC-FWD in anti-parallel to each other and an element pair formed by connecting an Si-IGBT and an SiC-FWD in anti-parallel to each other. The element pair and the element pair are housed in one module and configured as a 2-in-1 module in a manner that the first element pair operates as a positive side arm of the power converting apparatus and the second element pair operates as a negative side arm of the power converting apparatus. The element pairs are formed such that a ratio of an occupied area of SiC-FWD chips to an occupied area of IGBT chips in the element pairs is equal to or higher than 15% and lower than 45%.
    Type: Grant
    Filed: January 18, 2010
    Date of Patent: December 13, 2016
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Takeshi Tanaka, Yasushi Nakayama
  • Patent number: 9516336
    Abstract: With use of a simplified program or calculating device for motion compensation, a video decoding device decodes video data compressed by motion detection operations on macroblock units, as in the MPEG-4AVC standard. The video decoding device splits compressed data blocks of the prescribed size, 16×16 pixels for instance, to generate sub-blocks, which are smaller than the blocks and on which the video decoding device is able to execute motion compensation operations. The video decoding device duplicates a motion vector assigned to a given block to generate as many motion vectors as there are sub-blocks in the given block, and executes motion compensation on each sub-block using the corresponding duplicate motion vector. Data resulting from the motion compensation operation on each sub-block is combined to obtain a target block corresponding to the given block.
    Type: Grant
    Filed: August 28, 2014
    Date of Patent: December 6, 2016
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Hiroshi Amano, Takeshi Tanaka, Kouji Nakajima, Eiji Otomura