Patents by Inventor Nobuyuki Ohba

Nobuyuki Ohba 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: 10241917
    Abstract: A method for identifying, in a system including two or more computing devices that are able to communicate with each other, with each computing device having with a cache and connected to a corresponding memory, a computing device accessing one of the memories, includes monitoring memory access to any of the memories; monitoring cache coherency commands between computing devices; and identifying the computing device accessing one of the memories by using information related to the memory access and cache coherency commands.
    Type: Grant
    Filed: September 14, 2017
    Date of Patent: March 26, 2019
    Assignee: International Business Machines Corporation
    Inventors: Nobuyuki Ohba, Atsuya Okazaki
  • Patent number: 10216672
    Abstract: Described is a computer-implemented method for preventing time out during data transfer to an input/output device. Dummy data is generated and transferred to the input/output device at a time during data transfer, such as when a time out event may occur that would end the data transfer. The transfer of dummy data prevents a time out event from occurring.
    Type: Grant
    Filed: December 29, 2015
    Date of Patent: February 26, 2019
    Assignee: International Business Machines Corporation
    Inventors: Nobuyuki Ohba, Seiji Munetoh
  • Publication number: 20190041559
    Abstract: The present technology relates to a solid-state imaging element, a manufacturing method of the same, and an electronic device that achieve the extension of a dynamic range by making a difference in light-receiving sensitivity between low-sensitivity pixels and high-sensitivity pixels without changing spectral characteristics. The solid-state imaging element includes a pixel array portion in which two kinds of pixels different in light-receiving sensitivity, high-sensitivity pixels and low-sensitivity pixels are arrayed. The low-sensitivity pixels have a gray filter on or under a color filter to decrease light transmission factor in a visible-light region by a predetermined ratio. The present technology is applicable to solid-state imaging elements and the like, for example.
    Type: Application
    Filed: January 27, 2017
    Publication date: February 7, 2019
    Inventors: AMI HIGASHITANI, NOBUYUKI OHBA, YUKIHIRO SAYAMA
  • Patent number: 10169237
    Abstract: A method for identifying, in a system including two or more computing devices that are able to communicate with each other, with each computing device having with a cache and connected to a corresponding memory, a computing device accessing one of the memories, includes monitoring memory access to any of the memories; monitoring cache coherency commands between computing devices; and identifying the computing device accessing one of the memories by using information related to the memory access and cache coherency commands.
    Type: Grant
    Filed: September 14, 2017
    Date of Patent: January 1, 2019
    Assignee: International Business Machines Corporation
    Inventors: Nobuyuki Ohba, Atsuya Okazaki
  • Publication number: 20180375381
    Abstract: Provided are a power transmitting device, a power receiving device, a power supply system, and a power supply method able to supply electric power by emitting electromagnetic waves. A power transmitting device comprises: a calculating unit for calculating the maximum value for the emitted output of electromagnetic waves meeting exposure standards on the basis of a response delay time measured by the communication link between the power transmitting device and a power receiving device; a power transmitting unit for transmitting power via a power supply link with the power receiving device at an output not exceeding the maximum value; an anomaly detecting unit for detecting an anomaly in the power supply link on the basis of communication with the power receiving device via the communication link; and an output control unit for controlling the output on the basis of the detection of an anomaly in the power supply link.
    Type: Application
    Filed: August 3, 2018
    Publication date: December 27, 2018
    Inventors: Daiju Nakano, Nobuyuki Ohba, Kohji Takano
  • Publication number: 20180301491
    Abstract: The present technology relates to a solid-state imaging device, a manufacturing method, and an electronic device, which can improve sensitivity while improving color mixing. The solid-state imaging device includes a first wall provided between a pixel and a pixel arranged two-dimensionally to isolate the pixels, in which the first wall includes at least two layers including a light shielding film of a lowermost layer and a low refractive index film of which refractive index is lower than the light shielding film. The present technology can be applied to, for example, a solid-state imaging device, an electronic device having an imaging function, and the like.
    Type: Application
    Filed: October 12, 2016
    Publication date: October 18, 2018
    Inventors: YUKA NAKAMOTO, YUKIHIRO SAYAMA, NOBUYUKI OHBA, SINTARO NAKAJIKI
  • Patent number: 10069347
    Abstract: Provided are a power transmitting device, a power receiving device, a power supply system, and a power supply method able to supply electric power by emitting electromagnetic waves. A power transmitting device comprises: a calculating unit for calculating the maximum value for the emitted output of electromagnetic waves meeting exposure standards on the basis of a response delay time measured by the communication link between the power transmitting device and a power receiving device; a power transmitting unit for transmitting power via a power supply link with the power receiving device at an output not exceeding the maximum value; an anomaly detecting unit for detecting an anomaly in the power supply link on the basis of communication with the power receiving device via the communication link; and an output control unit for controlling the output on the basis of the detection of an anomaly in the power supply link.
    Type: Grant
    Filed: April 21, 2017
    Date of Patent: September 4, 2018
    Assignee: International Business Machines Corporation
    Inventors: Daiju Nakano, Nobuyuki Ohba, Kohji Takano
  • Publication number: 20180241506
    Abstract: A method is provided of detecting packet error during a transmission of a flit along a path from a source node through one or more intermediate nodes to a destination node. The method includes identifying a stalled node, from among the source and intermediate nodes, which prevents the transmission of the flit. The method includes generating, by a transmitter of the stalled node, a CRC for the flit and placing the CRC in an IDLE pattern of the flit. The method includes checking, by a receiver of an intermediate node subsequent to the stalled node, the CRC for the flit. The method includes sending, by a transmitter of the intermediate node, an error code to the destination node, and releasing the nodes from the intermediate node to and including the destination node, responsive to a detection, by the intermediate node, of an error in the CRC for the flit.
    Type: Application
    Filed: February 22, 2017
    Publication date: August 23, 2018
    Inventors: Yasuteru Kohda, Nobuyuki Ohba
  • Publication number: 20180241507
    Abstract: A method is provided of detecting packet error during a transmission of a flit along a path from a source node through one or more intermediate nodes to a destination node. The method includes identifying a stalled node, from among the source and intermediate nodes, which prevents the transmission of the flit. The method includes generating, by a transmitter of the stalled node, a CRC for the flit and placing the CRC in an IDLE pattern of the flit. The method includes checking, by a receiver of an intermediate node subsequent to the stalled node, the CRC for the flit. The method includes sending, by a transmitter of the intermediate node, an error code to the destination node, and releasing the nodes from the intermediate node to and including the destination node, responsive to a detection, by the intermediate node, of an error in the CRC for the flit.
    Type: Application
    Filed: November 8, 2017
    Publication date: August 23, 2018
    Inventors: Yasuteru Kohda, Nobuyuki Ohba
  • Publication number: 20180227227
    Abstract: A method is provided for packet broadcasting in a mesh-interconnected multi-computer network having a plurality of routers and a plurality of arbiters. The method includes interconnecting each of the plurality of routers to each of the plurality of arbiters. The method further includes receiving, by each of the plurality of arbiters, two or more packet broadcast requests. The method also includes live-lock free arbitering, by each of the plurality of arbiters, between the two or more packet broadcast requests using a shared priority matrix that selects one of the two or more packet broadcast requests. The shared priority matrix is shared amongst the plurality of arbiters and stores priority information relating to a correspondence between a plurality of packet broadcast requests, including the two or more packet broadcast requests, with respect to priorities assigned to each of the plurality of packet broadcast requests.
    Type: Application
    Filed: February 8, 2017
    Publication date: August 9, 2018
    Inventors: Yasuteru Kohda, Nobuyuki Ohba
  • Publication number: 20180227228
    Abstract: A method is provided for packet broadcasting in a mesh-interconnected multi-computer network having a plurality of routers and a plurality of arbiters. The method includes interconnecting each of the plurality of routers to each of the plurality of arbiters. The method further includes receiving, by each of the plurality of arbiters, two or more packet broadcast requests. The method also includes live-lock free arbitering, by each of the plurality of arbiters, between the two or more packet broadcast requests using a shared priority matrix that selects one of the two or more packet broadcast requests. The shared priority matrix is shared amongst the plurality of arbiters and stores priority information relating to a correspondence between a plurality of packet broadcast requests, including the two or more packet broadcast requests, with respect to priorities assigned to each of the plurality of packet broadcast requests.
    Type: Application
    Filed: December 5, 2017
    Publication date: August 9, 2018
    Inventors: Yasuteru Kohda, Nobuyuki Ohba
  • Patent number: 10020689
    Abstract: Provided are a power transmitting device, a power receiving device, a power supply system, and a power supply method able to supply electric power by emitting electromagnetic waves. A power transmitting device comprises: a calculating unit for calculating the maximum value for the emitted output of electromagnetic waves meeting exposure standards on the basis of a response delay time measured by the communication link between the power transmitting device and a power receiving device; a power transmitting unit for transmitting power via a power supply link with the power receiving device at an output not exceeding the maximum value; an anomaly detecting unit for detecting an anomaly in the power supply link on the basis of communication with the power receiving device via the communication link; and an output control unit for controlling the output on the basis of the detection of an anomaly in the power supply link.
    Type: Grant
    Filed: August 22, 2017
    Date of Patent: July 10, 2018
    Assignee: International Business Machines Corporation
    Inventors: Daiju Nakano, Nobuyuki Ohba, Kohji Takano
  • Patent number: 10014727
    Abstract: Provided are a power transmitting device, a power receiving device, a power supply system, and a power supply method able to supply electric power by emitting electromagnetic waves. A power transmitting device comprises: a calculating unit for calculating the maximum value for the emitted output of electromagnetic waves meeting exposure standards on the basis of a response delay time measured by the communication link between the power transmitting device and a power receiving device; a power transmitting unit for transmitting power via a power supply link with the power receiving device at an output not exceeding the maximum value; an anomaly detecting unit for detecting an anomaly in the power supply link on the basis of communication with the power receiving device via the communication link; and an output control unit for controlling the output on the basis of the detection of an anomaly in the power supply link.
    Type: Grant
    Filed: August 22, 2017
    Date of Patent: July 3, 2018
    Assignee: International Business Machines Corporation
    Inventors: Daiju Nakano, Nobuyuki Ohba, Kohji Takano
  • Patent number: 10008885
    Abstract: Provided are a power transmitting device, a power receiving device, a power supply system, and a power supply method able to supply electric power by emitting electromagnetic waves. A power transmitting device comprises: a calculating unit for calculating the maximum value for the emitted output of electromagnetic waves meeting exposure standards on the basis of a response delay time measured by the communication link between the power transmitting device and a power receiving device; a power transmitting unit for transmitting power via a power supply link with the power receiving device at an output not exceeding the maximum value; an anomaly detecting unit for detecting an anomaly in the power supply link on the basis of communication with the power receiving device via the communication link; and an output control unit for controlling the output on the basis of the detection of an anomaly in the power supply link.
    Type: Grant
    Filed: August 22, 2017
    Date of Patent: June 26, 2018
    Assignee: International Business Machines Corporation
    Inventors: Daiju Nakano, Nobuyuki Ohba, Kohji Takano
  • Publication number: 20180146025
    Abstract: A method for arbitrating data transfer requests from a plurality of nodes includes specifying one or more nodes among the plurality of nodes, the one or more nodes satisfying a predetermined condition, and selecting, if two or more nodes are specified among the plurality of nodes, one node from the two or more nodes using priority information, the priority information indicating correspondence between the plurality of nodes and a plurality of priorities each assigned to one of the plurality of nodes, the correspondence changing so that the plurality of priorities are assigned equally to each of the plurality of nodes and high and low relations appear equally between pairs of priorities each assigned to a pair of nodes of the plurality of nodes.
    Type: Application
    Filed: November 21, 2016
    Publication date: May 24, 2018
    Inventors: Yasuteru Kohda, Nobuyuki Ohba
  • Publication number: 20180131601
    Abstract: A network system for routing data in a network includes a plurality of nodes each node from the plurality of nodes being configured to route the data, a plurality of links each link from the plurality of links connects two of the plurality of nodes to form the network, and a global bus provided separately from the plurality of links and spread within the network, wherein each node from the plurality of nodes feeds, to the global bus, traffic information regarding each node, obtains, from the global bus, traffic information regarding other nodes from the plurality of nodes, and switches a routing path of the data based on at least the traffic information regarding the other nodes.
    Type: Application
    Filed: November 9, 2016
    Publication date: May 10, 2018
    Inventors: Yasuteru Kohda, Nobuyuki Ohba
  • Patent number: 9940237
    Abstract: A method for identifying, in a system including two or more computing devices that are able to communicate with each other, with each computing device having with a cache and connected to a corresponding memory, a computing device accessing one of the memories, includes monitoring memory access to any of the memories; monitoring cache coherency commands between computing devices; and identifying the computing device accessing one of the memories by using information related to the memory access and cache coherency commands.
    Type: Grant
    Filed: April 30, 2015
    Date of Patent: April 10, 2018
    Assignee: International Business Machines Corporation
    Inventors: Nobuyuki Ohba, Atsuya Okazaki
  • Patent number: 9928175
    Abstract: A method for identifying, in a system including two or more computing devices that are able to communicate with each other, with each computing device having with a cache and connected to a corresponding memory, a computing device accessing one of the memories, includes monitoring memory access to any of the memories; monitoring cache coherency commands between computing devices; and identifying the computing device accessing one of the memories by using information related to the memory access and cache coherency commands.
    Type: Grant
    Filed: June 23, 2015
    Date of Patent: March 27, 2018
    Assignee: International Business Machines Corporation
    Inventors: Nobuyuki Ohba, Atsuya Okazaki
  • Patent number: 9891854
    Abstract: A method for managing main memory including DRAM and NVRAM in a computer depending on the operation state of the computer is provided. The method includes: (a) upon start of the computer, loading a program and the like into the DRAM, and loading predetermined read-only data and the like into the NVRAM; (b) in a state transition from a normal operation to a suspend state, moving data in the DRAM to the NVRAM; (c) in a state transition from the suspend state to the normal operation, reading data from the NVRAM for program execution; (d) in the case where a data write to the NVRAM occurs, stopping the data write, and moving data in a data area of the NVRAM subjected to the data write, to the DRAM; and (e) performing the data write to the DRAM to which the data has been moved.
    Type: Grant
    Filed: November 11, 2016
    Date of Patent: February 13, 2018
    Assignee: International Business Machines Corporation
    Inventors: Seiji Munetoh, Nobuyuki Ohba
  • Publication number: 20180004665
    Abstract: A method for identifying, in a system including two or more computing devices that are able to communicate with each other, with each computing device having with a cache and connected to a corresponding memory, a computing device accessing one of the memories, includes monitoring memory access to any of the memories; monitoring cache coherency commands between computing devices; and identifying the computing device accessing one of the memories by using information related to the memory access and cache coherency commands.
    Type: Application
    Filed: September 14, 2017
    Publication date: January 4, 2018
    Inventors: Nobuyuki Ohba, Atsuya Okazaki