Patents by Inventor Kensaku Yamaguchi

Kensaku Yamaguchi 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: 20170064046
    Abstract: According to an embodiment, a communication device includes a receiving unit, an extraction unit, an integration unit, and a processing unit. The receiving unit receives an aggregated frame in which a plurality of subframes are aggregated. The extraction unit extracts each of the subframes from the aggregated frame received by the receiving unit. The integration unit integrates, among the subframes extracted by the extraction unit, subframes corresponding to the same Transmission Control Protocol (TCP) connection. The processing unit performs protocol processing on the subframes integrated by the integration unit.
    Type: Application
    Filed: August 24, 2016
    Publication date: March 2, 2017
    Applicant: Kabushiki Kaisha Toshiba
    Inventor: Kensaku YAMAGUCHI
  • Patent number: 9544370
    Abstract: There is provided a data transferring apparatus that transfers file data stored in a storage apparatus that manages data in a block unit, in which the first issuing unit, in response to a request from a CPU, generates and sends a reading command of metadata including first map information showing in which location first file data is stored, to the storage apparatus, the second issuing unit receives a reading command of the first file data from the CPU that has obtained the metadata, generates and sends a reading command of a block storing the first file data to the storage apparatus, the extracting unit receives block data read from the storage apparatus, receives the first map information from the CPU and, based on the first map information, extracts the first file data from the block data, and the communication processing unit transmits the first file data to the network.
    Type: Grant
    Filed: September 9, 2013
    Date of Patent: January 10, 2017
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Shingo Tanaka, Takahiro Yamaura, Kensaku Yamaguchi, Sunao Wada, Yasuo Ohya
  • Publication number: 20160041765
    Abstract: According to an embodiment, a storage device control apparatus manages a plurality of storage devices. The storage device control apparatus includes a communication unit and an access controller. The communication unit is configured to notify an external host computer of the number of the plurality of storage devices. The communication unit is configured to receive a first number that identifies a first storage device and a first address in the first storage device. The first number and the first address are obtained by the computer on the basis of an address in the plurality of storage devices and the number of the plurality of storage devices. The access controller is configured to access a location identified by the first address in a first storage device identified by the first number.
    Type: Application
    Filed: October 20, 2015
    Publication date: February 11, 2016
    Inventor: Kensaku Yamaguchi
  • Publication number: 20150370504
    Abstract: According to an embodiment, a storage device control apparatus manages a plurality of storage devices. The storage device control apparatus includes a communication unit and an access controller. The communication unit is configured to receive a first storage device number and a first storage device stripe number. The first storage device number and the first storage device stripe number are obtained by an external host computer from a result of division performed by the external host computer on the basis of a stripe number and the number of storage devices. The access controller is configured to access a location identified by the first storage device stripe number in a first storage device identified by the first storage device number.
    Type: Application
    Filed: August 21, 2015
    Publication date: December 24, 2015
    Inventor: Kensaku Yamaguchi
  • Publication number: 20150347033
    Abstract: According to one embodiment, there is provided a storage controlling device including a receiving unit and a controlling unit. The receiving unit receives a read command or a write command for a storage device, from an internal or external command issuing device. The controlling unit holds the write command received by the receiving unit until at least a first interval time has elapsed after outputting a write command received most recently before the write command is received, and then outputs the write command which is held after the first interval time has elapsed. The controlling unit outputs the read command received by the receiving unit, prior to outputting the write command that is held, when the read command is received during a time when the write command is held.
    Type: Application
    Filed: August 10, 2015
    Publication date: December 3, 2015
    Inventors: Kensaku Yamaguchi, Shingo Tanaka, Shinya Murai
  • Publication number: 20150295957
    Abstract: According to one embodiment, a data transmitting device communicates with a plurality of other communication devices through a network. The data transmitting device includes a session manager and a communication processor. The session manager sequentially and cyclically selects a plurality of sessions relevant to the other communication devices. The communication processor performs a transmitting process of data to the other communication device relevant to the session selected by the session manager in each time each of the sessions is selected so as to suppress variations in amounts of transmitted data among the sessions with respect to an amount of data transmitted per one transmitting process.
    Type: Application
    Filed: April 2, 2015
    Publication date: October 15, 2015
    Inventors: Yuta KOBAYASHI, Kensaku YAMAGUCHI, Shingo TANAKA, Yasumichi HASHI
  • Publication number: 20150271265
    Abstract: The data transfer device receives file data through a network and writes the file data to a storage device on a block basis, in which the communication processor receives a receiving instruction for the file data from an external host CPU and receives the file data via one or more packets from the network according to the receiving instruction, the receiving buffer stores data received in the communication processor therein upon receiving each packet, and the command issuance controller acquires, from the external host CPU, map information indicating a position to write the file data in a storage area of the storage device, specifies data in the receiving buffer for writing according to a data storing status of the receiving buffer, issues a write command for writing a specified data to the storage device and sends it to the storage device.
    Type: Application
    Filed: March 16, 2015
    Publication date: September 24, 2015
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Yuta KOBAYASHI, Takahiro YAMAURA, Kensaku YAMAGUCHI, Masataka GOTO
  • Publication number: 20140359062
    Abstract: According to one embodiment, there is provided a data transferring apparatus to communicate with a communicating apparatus through a network in accordance with a predetermined protocol, including: a writing controller and a transmission controller. The writing controller performs control of writing a first response message containing first data to a storage. The transmission controller performs control of reading the first response message from the storage and transmitting the first response message to the communicating apparatus, upon receiving a data acquisition request message for the first data from the first communicating apparatus.
    Type: Application
    Filed: March 4, 2014
    Publication date: December 4, 2014
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Masataka GOTO, Kensaku YAMAGUCHI, Eimi MURAKAMI, Takahiro YAMAURA
  • Patent number: 8713336
    Abstract: The detecting unit detects a disconnection of communications that have been established with a display apparatus. When the disconnection of the communications is detected, the message generating unit generates a confirmation message that confirms whether the communications should be reestablished. The transmitting unit transmits the confirmation message to the display apparatus. The receiving unit receives a reply message that indicates whether the communications should be reestablished from the display apparatus. The main power supply controlling unit shuts down the main power supply when the reply message indicates that the communications should not be reestablished, or when no reply message is received.
    Type: Grant
    Filed: August 18, 2009
    Date of Patent: April 29, 2014
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Yasuyuki Nishibayashi, Naoki Esaka, Shinya Murai, Masataka Goto, Kensaku Yamaguchi, Hiroshi Kawazoe
  • Publication number: 20140025771
    Abstract: According to an embodiment, a data transferring apparatus is connected to a control device and transmits data stored in a memory device in units of blocks to a network. The apparatus includes a command issuing unit, a transmission data extracting unit, and a communication processing unit. The command issuing unit is configured to issue, to the memory device, a read command for reading a block for which a read instruction is given from the control device. The transmission data extracting unit is configured to extract transmission data from data read from the memory device according to the read command. The communication processing unit is configured to transmit the extracted transmission data to the network based on a predetermined protocol.
    Type: Application
    Filed: September 4, 2013
    Publication date: January 23, 2014
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Shingo Tanaka, Kensaku Yamaguchi, Yasumichi Hashi, Shinichi Kurihara
  • Publication number: 20140012948
    Abstract: There is provided a data transferring apparatus that transfers file data stored in a storage apparatus that manages data in a block unit, in which the first issuing unit, in response to a request from a CPU, generates and sends a reading command of metadata including first map information showing in which location first file data is stored, to the storage apparatus, the second issuing unit receives a reading command of the first file data from the CPU that has obtained the metadata, generates and sends a reading command of a block storing the first file data to the storage apparatus, the extracting unit receives block data read from the storage apparatus, receives the first map information from the CPU and, based on the first map information, extracts the first file data from the block data, and the communication processing unit transmits the first file data to the network.
    Type: Application
    Filed: September 9, 2013
    Publication date: January 9, 2014
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Shingo Tanaka, Takahiro Yamaura, Kensaku Yamaguchi, Sunao Wada, Yasuo Ohya
  • Patent number: 8576237
    Abstract: An apparatus that communicates with a screen display apparatus: a generation unit configured to generate image data to be displayed on a screen; an identification unit configured to identify an overlapping area that overlaps with the image data for each of a plurality of divided areas into which the screen is divided, respectively; a division unit configured to divide respective partial image data belonging to the respective overlapping areas in a vertical direction or a horizontal direction of the screen; a data compression processor configured to compress respective divided image data belonging to the respective divided areas by using dictionary data obtained based on a predetermined amount of divided image data compressed in the past belonging to the respective divided areas; and a data transmission unit configured to transmit respective compressed image data belonging to the respective divided areas in an order defined according to a rule given in advance.
    Type: Grant
    Filed: March 16, 2009
    Date of Patent: November 5, 2013
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Mitsue Fujinuki, Shinya Murai, Kensaku Yamaguchi, Shogo Yamaguchi
  • Patent number: 8509127
    Abstract: There is provided with a management device including: a communication unit configured to receive input function information indicating input functions provided by input devices through a wireless network and receive reception level information indicating reception levels of signals which an output device connected to the wireless network has received from the input devices from the output device; and a determiner configured to determine an input device to be combined with the output device based on the input function information and the reception level information.
    Type: Grant
    Filed: February 27, 2007
    Date of Patent: August 13, 2013
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Kensaku Yamaguchi, Shinya Murai, Masataka Goto, Yasuyuki Nishibayashi
  • Patent number: 8432966
    Abstract: A signaling unit of a display terminal establishes communication with a content server, video communication terminal, and PC server through a communication unit, and transmits/receives image data compressed by MPEG2, MPEG4, and JPEG. A media control unit switches compression schemes for decoding in a media processing unit on the basis of the received image data. The media processing unit performs decoding processing including inverse orthogonal transformation processing and dequantization processing in accordance with the switched compression scheme. At this time, a single processing circuit performs inverse orthogonal transformation processing and dequantization processing.
    Type: Grant
    Filed: June 12, 2012
    Date of Patent: April 30, 2013
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Masataka Goto, Shinya Murai, Kensaku Yamaguchi, Shingo Tanaka, Yasuyuki Nishibayashi, Hiroshi Kawazoe, Mika Minematsu
  • Publication number: 20120250756
    Abstract: A signaling unit of a display terminal establishes communication with a content server, video communication terminal, and PC server through a communication unit, and transmits/receives image data compressed by MPEG2, MPEG4, and JPEG. A media control unit switches compression schemes for decoding in a media processing unit on the basis of the received image data. The media processing unit performs decoding processing including inverse orthogonal transformation processing and dequantization processing in accordance with the switched compression scheme. At this time, a single processing circuit performs inverse orthogonal transformation processing and dequantization processing.
    Type: Application
    Filed: June 12, 2012
    Publication date: October 4, 2012
    Inventors: Masataka Goto, Shinya Murai, Kensaku Yamaguchi, Shingo Tanaka, Yasuyuki Nishibayashi, Hiroshi Kawazoe, Mika Minematsu
  • Patent number: 8223834
    Abstract: A signaling unit of a display terminal establishes communication with a content server, video communication terminal, and PC server through a communication unit, and transmits/receives image data compressed by MPEG2, MPEG4, and JPEG. A media control unit switches compression schemes for decoding in a media processing unit on the basis of the received image data. The media processing unit performs decoding processing including inverse orthogonal transformation processing and dequantization processing in accordance with the switched compression scheme. At this time, a single processing circuit performs inverse orthogonal transformation processing and dequantization processing.
    Type: Grant
    Filed: September 18, 2007
    Date of Patent: July 17, 2012
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Masataka Goto, Shinya Murai, Kensaku Yamaguchi, Shingo Tanaka, Yasuyuki Nishibayashi, Hiroshi Kawazoe, Mika Minematsu
  • Patent number: 8115800
    Abstract: An example server apparatus includes a video stream receiver configured to receive a first video stream encoded by a first coding scheme from a video providing apparatus via a network and a video stream generator configured to generate a second video stream obtained by converting a coding scheme of the first video stream from the first coding scheme to a second coding scheme. A client capability information acquirer is configured to acquire decoding capability information representing whether a client apparatus can decode a video image encoded by the first coding scheme and a video stream processing determiner is configured to transmit the first video stream to the client apparatus when the client apparatus can decode the video image encoded by the first coding scheme, and to transmit the second video stream to the client apparatus when the client apparatus cannot decode the video image encoded by the first coding scheme.
    Type: Grant
    Filed: February 20, 2007
    Date of Patent: February 14, 2012
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Shinya Murai, Masataka Goto, Kensaku Yamaguchi, Yasuyuki Nishibayashi
  • Publication number: 20110310965
    Abstract: According to one embodiment, a communication device includes an image storage unit storing a display image, an update image generation unit generating an update image used to update the display image, a detection unit detecting a difference region representing a region in which pieces of pixel information do not match between the update image and the display image, and a compression image generation unit generating a difference region compression image. The communication device further includes a moving picture generation unit generating a moving picture at a designated frame rate, a control unit comparing the size of the difference region with a first threshold and performs control of decreasing a frame rate designated to the moving picture generation unit when the size of the difference region is larger than the first threshold, and a transmission unit transmitting the compression image and the moving picture to the display device.
    Type: Application
    Filed: May 16, 2011
    Publication date: December 22, 2011
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Yasuyuki NISHIBAYASHI, Shinya MURAI, Masataka GOTO, Kensaku YAMAGUCHI, Hiroshi KAWAZOE
  • Patent number: 7983651
    Abstract: A communication apparatus includes an image information acquisition unit configured to acquire new image information to be transmitted to a display terminal through a wireless access point, a storage unit configured to temporarily store the image information, a decision unit configured to decide to change a state of a wireless communication processing unit of the display terminal from a power save state to a normal state when an amount of the image information stored in the storage unit is not less than a predetermined threshold value, a message generation unit configured to generate a change instruction message in response to decision of the decision unit, and a transmission unit configured to transmit the change instruction message to the display terminal through the wireless access point to instruct the display terminal to change the state of the wireless communication processing unit from the power save state to the normal state.
    Type: Grant
    Filed: February 5, 2008
    Date of Patent: July 19, 2011
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Mika Minematsu, Yasuyuki Nishibayashi, Shinya Murai, Masataka Goto, Kensaku Yamaguchi
  • Patent number: 7873986
    Abstract: A communication apparatus includes a first generation unit which sequentially generates image data in accordance with an event occurring due to a change in an operating state of an application program; a difference detecting unit which detects a difference between a plurality of consecutive image data generated by the first generation unit; a second generation unit which generates send data to be sent to the display terminal by compressing to the difference; a message generating unit which generates a message to change the spatial multiplexing number to either one or a plural number according to the change in the operating state of the application program or the difference; and a sending unit which sends the message to the wireless access apparatus prior to sending to the display terminal of the send data generated by the second generation unit.
    Type: Grant
    Filed: March 21, 2007
    Date of Patent: January 18, 2011
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Yasuyuki Nishibayashi, Shinya Murai, Masataka Goto, Kensaku Yamaguchi, Shingo Tanaka