Patents by Inventor Akira Fujibayashi

Akira Fujibayashi 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: 8843703
    Abstract: Host-connected storage system, including: channel adaptor with local router having processor and transfer list index/processor number information, and a protocol processor for host and router data exchange; and plural storage nodes each including a processor and disk drive and providing the disk drive to the host as a logical unit, wherein processor number information including logical unit and processor number of the node, wherein transfer list index/processor number information including processor number identifying the processor and index information identifying a transfer list including instruction sent to the protocol processor, wherein the router determines a first processor transfer destination of a write request via the processor number information on receiving the write request from the host through the protocol processor, wherein the first processor generates a first transfer list including processing instructed to the protocol processor, and first index information indexing the first transfer list
    Type: Grant
    Filed: November 29, 2012
    Date of Patent: September 23, 2014
    Assignee: Hitachi, Ltd.
    Inventors: Shuji Nakamura, Akira Fujibayashi, Mutsumi Hosoya
  • Patent number: 8837579
    Abstract: Embodiments of the present invention include a set of processes and systems for implementing a forward weight-adaptive over-complete transform of an image/video frame, an inverse weight-adaptive over-complete transform of an image/video frame, and fast and low-memory processes for performing the forward weight-adaptive over-complete transform, processing coefficients in the transform domain and performing the inverse weight-adaptive over-complete transform simultaneously.
    Type: Grant
    Filed: September 26, 2008
    Date of Patent: September 16, 2014
    Assignee: NTT DoCoMo, Inc.
    Inventors: Sandeep Kanumuri, Onur G. Guleryuz, Akira Fujibayashi, M. Reha Civanlar
  • Patent number: 8806170
    Abstract: For a storage apparatus where flash memory disks and hard disks coexist, high-density mounting of flash memory modules is achieved. The storage apparatus includes flash memories and a storage controller. A second storage apparatus including magnetic disks is connected to the storage apparatus. The storage controller can form a storage area using a flash memory or a magnetic disk to create a logical volume. When an input/output request is issued from a host computer, if a storage area is formed with a flash memory, the storage controller directly accesses the flash memory to handle the request. When the storage apparatus defines a storage area formed with a flash memory, the storage apparatus defines the storage area by adding up the capacity of a storage area to be provided for the host computer and a substitute area capacity determined in consideration of restrictions on the number deletions of the flash memory.
    Type: Grant
    Filed: April 22, 2013
    Date of Patent: August 12, 2014
    Assignee: Hitachi Ltd.
    Inventors: Masayuki Yamamoto, Akira Yamamoto, Akira Fujibayashi, Jun Kitahara, Yoshiki Kano
  • Patent number: 8744199
    Abstract: An image processing device includes: processing pixel group determination unit that determines a to-be-processed pixel group from a plurality of frame images of picture signals input based on a first predetermined rule and that determines a processed pixel group from the processed frame image stored based on a second predetermined rule; frequency component processing unit that extracts at least a temporal frequency component from the to-be-processed pixel group and the processed pixel group, that executes predetermined coefficient processing on a temporal high-frequency component of the temporal frequency component and that acquires the executed to-be-processed pixel group; processing completion frame generation unit that generates a processing completion frame image from the executed to-be-processed pixel group; and image output unit that outputs the processing completion frame image and that stores the processing completion frame image in the processed frame storage unit, in which the frequency component pr
    Type: Grant
    Filed: October 13, 2010
    Date of Patent: June 3, 2014
    Assignee: Morpho, Inc.
    Inventors: Masaki Hiraga, Toshiki Shiino, Akira Fujibayashi, Choong Seng Boon
  • Patent number: 8731062
    Abstract: A method and apparatus are disclosed herein for reducing at least one or both of flicker and noise in video sequences. In one embodiment, the method comprises receiving an input video and performing operations to reduce one or both of noise and flicker in the input video using spatial and temporal processing.
    Type: Grant
    Filed: September 18, 2008
    Date of Patent: May 20, 2014
    Assignee: NTT DoCoMo, Inc.
    Inventors: Sandeep Kanumuri, Onur G. Guleryuz, M. Reha Civanlar, Akira Fujibayashi, Choong S. Boon
  • Publication number: 20140095776
    Abstract: A storage system including a storage device which includes media for storing data from a host computer, a medium controller for controlling the media, a plurality of channel controllers for connecting to the host computer through a channel and a cache memory for temporarily storing data from the host computer, wherein the media have a restriction on a number of writing times. The storage device includes a bus for directly transferring data from the medium controller to the channel controller.
    Type: Application
    Filed: December 6, 2013
    Publication date: April 3, 2014
    Applicant: HITACHI, LTD.
    Inventors: Shuji NAKAMURA, Kazuhisa FUJIMOTO, Akira FUJIBAYASHI
  • Patent number: 8631199
    Abstract: A storage system including a storage device which includes media for storing data from a host computer, a medium controller for controlling the media, a plurality of channel controllers for connecting to the host computer through a channel and a cache memory for temporarily storing data from the host computer, wherein the media have a restriction on a number of writing times. The storage device includes a bus for directly transferring data from the medium controller to the channel controller.
    Type: Grant
    Filed: November 29, 2012
    Date of Patent: January 14, 2014
    Assignee: Hitachi, Ltd.
    Inventors: Shuji Nakamura, Kazuhisa Fujimoto, Akira Fujibayashi
  • Publication number: 20130294517
    Abstract: A predictive coding system can encode motion vectors by determining a motion vector of a target partition in a frame picture of an encoding target; determining a first motion vector predictor candidate from a motion vector or motion vectors of one or more partitions belonging to a left-neighboring region to the target partition; determining a second motion vector predictor candidate from a motion vector or motion vectors of one or more partitions belonging to an above-neighboring region to the target partition; selecting an optimum motion vector predictor and outputting motion vector predictor indication information to specify the selected optimum motion vector predictor, the optimum motion vector predictor selected based on comparison between one or more motion vector predictor candidates including the first motion vector predictor candidate and the second motion vector predictor candidate, and the motion vector of the target partition; and encoding the motion vector predictor indication information.
    Type: Application
    Filed: July 5, 2013
    Publication date: November 7, 2013
    Inventors: Akira Fujibayashi, Yoshinori Suzuki, Choong Seng Boon
  • Publication number: 20130238845
    Abstract: For a storage apparatus where flash memory disks and hard disks coexist, high-density mounting of flash memory modules is achieved. The storage apparatus includes flash memories and a storage controller. A second storage apparatus including magnetic disks is connected to the storage apparatus. The storage controller can form a storage area using a flash memory or a magnetic disk to create a logical volume. When an input/output request is issued from a host computer, if a storage area is formed with a flash memory, the storage controller directly accesses the flash memory to handle the request. When the storage apparatus defines a storage area formed with a flash memory, the storage apparatus defines the storage area by adding up the capacity of a storage area to be provided for the host computer and a substitute area capacity determined in consideration of restrictions on the number deletions of the flash memory.
    Type: Application
    Filed: April 22, 2013
    Publication date: September 12, 2013
    Applicant: HITACHI, LTD.
    Inventors: Masayuki YAMAMOTO, Akira YAMAMOTO, Akira FUJIBAYASHI, Jun KITAHARA, Yoshiki KANO
  • Publication number: 20130159619
    Abstract: Host-connected storage system, including: channel adaptor with local router having processor and transfer list index/processor number information, and a protocol processor for host and router data exchange; and plural storage nodes each including a processor and disk drive and providing the disk drive to the host as a logical unit, wherein processor number information including logical unit and processor number of the node, wherein transfer list index/processor number information including processor number identifying the processor and index information identifying a transfer list including instruction sent to the protocol processor, wherein the router determines a first processor transfer destination of a write request via the processor number information on receiving the write request from the host through the protocol processor, wherein the first processor generates a first transfer list including processing instructed to the protocol processor, and first index information indexing the first transfer list
    Type: Application
    Filed: November 29, 2012
    Publication date: June 20, 2013
    Inventors: Shuji NAKAMURA, Akira FUJIBAYASHI, Matsumi HOSOYA
  • Patent number: 8462985
    Abstract: A video evaluation apparatus and video evaluation method capable of appropriately evaluating a video including of a plurality of frame images, using an objective standard. A reference characteristic, which is a predetermined spatio-temporal frequency characteristic about a video, is stored, and a video characteristic analyzer calculates a spatio-temporal frequency characteristic of a target video including a plurality of frame images. Then a video evaluation determiner calculates an evaluated value of the target video, based on a relative relation between the calculated spatio-temporal frequency characteristic and the stored reference characteristic.
    Type: Grant
    Filed: September 27, 2011
    Date of Patent: June 11, 2013
    Assignee: NTT DoCoMo, Inc.
    Inventors: Akira Fujibayashi, Choong Seng Boon, Sadaatsu Kato, Tsutomu Horikoshi
  • Patent number: 8429372
    Abstract: For a storage apparatus where flash memory disks and hard disks coexist, high-density mounting of flash memory modules is achieved. The storage apparatus includes flash memories and a storage controller. A second storage apparatus including magnetic disks is connected to the storage apparatus. The storage controller can form a storage area using a flash memory or a magnetic disk to create a logical volume. When an input/output request is issued from a host computer, if a storage area is formed with a flash memory, the storage controller directly accesses the flash memory to handle the request. When the storage apparatus defines a storage area formed with a flash memory, the storage apparatus defines the storage area by adding up the capacity of a storage area to be provided for the host computer and a substitute area capacity determined in consideration of restrictions on the number deletions of the flash memory.
    Type: Grant
    Filed: May 8, 2012
    Date of Patent: April 23, 2013
    Assignee: Hitachi, Ltd.
    Inventors: Masayuki Yamamoto, Akira Yamamoto, Akira Fujibayashi, Jun Kitahara, Yoshiki Kano
  • Patent number: 8423677
    Abstract: In order to efficiently utilize processor resources, a storage system according to this invention includes: a protocol processor; a processor; a local router; a first memory; and a disk drive. In the storage system, the protocol processor transmits, upon transmitting a frame to the host computer, information on a transmission state of the frame to the local router, and the local router determines, upon the protocol processor receiving a frame, which of the processors processes the received frame, based on which a subject the received frame requests for an access to, transfers the received frame to the determined processor, determines, upon the protocol processor transmitting a frame, which of the processors processes information on a transmission state of the frame, based on an exchange of the transmitted frame, and transfers the information on the transmission state of the frame to the determined processor.
    Type: Grant
    Filed: April 4, 2006
    Date of Patent: April 16, 2013
    Assignee: Hitachi, Ltd.
    Inventors: Shuji Nakamura, Akira Fujibayashi, Mutsumi Hosoya
  • Patent number: 8412977
    Abstract: A method, apparatus, article of manufacture, and system are presented for establishing redundant computer resources. According to one embodiment, in a system including a plurality of processor devices and a plurality of storage devices, the processor devices, the storage devices and the management server being connected via a network, the method comprises storing device information relating to the processor devices and the storage devices and topology information relating to topology of the network, identifying at least one primary computer resource, selecting at least one secondary computer resource suitable to serve as a redundant resource corresponding to the at least one primary computer resource based on the device information and the topology information, and assigning the at least one secondary computer resource as a redundant resource corresponding to the at least one primary computer resource.
    Type: Grant
    Filed: January 10, 2012
    Date of Patent: April 2, 2013
    Assignee: Hitachi, Ltd.
    Inventor: Akira Fujibayashi
  • Patent number: 8392688
    Abstract: A method and storage system for increasing an amount of memory in a queuing area on. The storage system includes first and second storage subsystems connected to each other via a path. A primary volume in the first storage subsystem and a remote secondary volume in the second storage subsystem are mirrored and operated in the asynchronous mode. A queuing area having memory is provided in the second storage subsystem for temporarily storing data transferred to the second storage subsystem from the first storage subsystem in response to a write input/output (I/O) issued by a host to write data in the primary volume. Data temporarily stored in the memory is retrieved and stored in the remote secondary volume. An unused area of the queuing area is monitored and the memory increased if the unused area becomes less than a predetermined amount.
    Type: Grant
    Filed: January 13, 2012
    Date of Patent: March 5, 2013
    Assignee: Hitachi, Ltd.
    Inventor: Akira Fujibayashi
  • Publication number: 20130044813
    Abstract: A moving image encoding/decoding system may include a video predictive encoding device, which may include: an encoding device which encodes each of a plurality of input pictures to generate compressed picture data including a random access picture, and encodes data about display order information of each picture; a restoration device which decodes the compressed picture data to restore a reproduced picture; a picture storage device which stores the reproduced picture as a reference picture; and a memory management device which controls the picture storage device. Following completion of an encoding process of generating the random access picture, the memory management device refreshes the picture storage device by setting every reference picture in the picture storage device, except for the random access picture, as unnecessary immediately before or immediately after encoding a picture with display order information larger than the display order information of the random access picture.
    Type: Application
    Filed: September 14, 2012
    Publication date: February 21, 2013
    Applicant: NTT DOCOMO, INC.
    Inventors: Choong Seng BOON, Yoshinori SUZUKI, Akira FUJIBAYASHI, Thiow Keng TAN
  • Patent number: 8370588
    Abstract: A host computer is coupled to a first fabric, a source storage apparatus is coupled to a second fabric, and a destination storage apparatus is coupled to a third fabric. A destination port of the destination storage apparatus comprises a same WWPN as a WWPN of a source port, and is logged in to the fabric beforehand. Duplicate WWPNs are allowed to exist because an inter fabric router separately manages the second fabric and the third fabric. When a switchover is instructed, the inter fabric router switches a coupling destination of the host computer to the destination storage apparatus.
    Type: Grant
    Filed: September 9, 2010
    Date of Patent: February 5, 2013
    Assignee: Hitachi, Ltd.
    Inventors: Akio Nakajima, Akira Fujibayashi
  • Patent number: 8340087
    Abstract: Deadlock is avoided in a grid storage system having superior scalability. Provided is a storage subsystem connected to a host computer for receiving a write or read access from the host computer. This storage subsystem includes a plurality of modules respectively having a storage resource, a switch for connecting the plurality of modules, a controller for controlling the transfer of a packet based on the write or read access from the host computer to a target module among the plurality of modules via the switch, and a memory storing a transfer rule of the packet. The controller controls the transfer of the packet based on the transfer rule.
    Type: Grant
    Filed: September 22, 2010
    Date of Patent: December 25, 2012
    Assignee: Hitachi, Ltd.
    Inventors: Shuji Nakamura, Akira Fujibayashi, Mutsumi Hosoya, Hideaki Fukuda
  • Patent number: 8340175
    Abstract: A moving image encoding device measures a band of a target image to be encoded and a band of a reference image by a band analyzer, and generates band-related information representing these bands. A prediction signal generator generates a prediction signal such that the signal matches the band of the target image, from the reference image, based on the band-related information. A difference unit obtains a difference between the target image and the prediction signal to generate a differential signal. A converter and a quantizer each encode the differential signal to generate an encoded differential signal. An inverse quantizer and an inverter each decode the encoded differential signal to generate a decoded differential signal. An adder adds the prediction signal to the decoded differential signal to generate a reproduced image. An output terminal outputs at least the encoded differential signal and the band-related information.
    Type: Grant
    Filed: April 6, 2006
    Date of Patent: December 25, 2012
    Assignee: NTT DoCoMo, Inc.
    Inventors: Choong Seng Boon, Akira Fujibayashi, Sadaatsu Kato, Tsutomu Horikoshi
  • Patent number: 8332582
    Abstract: A storage system including a storage device which includes media for storing data from a host computer, a medium controller for controlling the media, a plurality of channel controllers for connecting to the host computer through a channel and a cache memory for temporarily storing data from the host computer, wherein the media have a restriction on a number of writing times. The storage device includes a bus for directly transferring data from the medium controller to the channel controller.
    Type: Grant
    Filed: October 14, 2008
    Date of Patent: December 11, 2012
    Assignee: Hitachi, Ltd.
    Inventors: Shuji Nakamura, Kazuhisa Fujimoto, Akira Fujibayashi