Patents by Inventor Daiju Nakano

Daiju Nakano 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: 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
  • Patent number: 9996794
    Abstract: Various Reservoir Computing systems and a method performed by a Reservoir Computing system are provided. A Reservoir Computing system includes a laser for emitting light. The Reservoir Computing system further includes a mirror for reflecting external feedback light back to the laser. The Reservoir Computing system also includes a modulator for modulating the external feedback light reflected back to the laser. The Reservoir Computing system additionally includes a photo-detector for converting a laser output signal to an electrical signal.
    Type: Grant
    Filed: October 25, 2017
    Date of Patent: June 12, 2018
    Assignee: International Business Machines Corporation
    Inventors: Daiju Nakano, Seiji Takeda, Toshiyuki Yamane
  • Patent number: 9996290
    Abstract: Embodiments include providing content requested by a user via an access point capable of wireless communication. Aspects include receiving the content provided by the management server and storing the content provided by the management server into a volatile memory provided in the wireless communication apparatus. Aspects also include storing difference data into a nonvolatile memory if it is requested to change the content stored in the volatile memory and monitoring a state of communication connection with the access point and whether or not a packet giving an instruction to hold the content has been received. Aspects further include deleting the content stored in the volatile memory if communication with the access point is disconnected or if the packet is unreceived.
    Type: Grant
    Filed: December 15, 2015
    Date of Patent: June 12, 2018
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Yasunao Katayama, Daiju Nakano, Kohji Takano
  • Publication number: 20180046909
    Abstract: Various Reservoir Computing systems and a method performed by a Reservoir Computing system are provided. A Reservoir Computing system includes a laser for emitting light. The Reservoir Computing system further includes a mirror for reflecting external feedback light back to the laser. The Reservoir Computing system also includes a modulator for modulating the external feedback light reflected back to the laser. The Reservoir Computing system additionally includes a photo-detector for converting a laser output signal to an electrical signal.
    Type: Application
    Filed: October 25, 2017
    Publication date: February 15, 2018
    Inventors: DAIJU NAKANO, SEIJI TAKEDA, TOSHIYUKI YAMANE
  • Patent number: 9852372
    Abstract: Various Reservoir Computing systems and a method performed by a Reservoir Computing system are provided. A Reservoir Computing system includes a laser for emitting light. The Reservoir Computing system further includes a mirror for reflecting external feedback light back to the laser. The Reservoir Computing system also includes a modulator for modulating the external feedback light reflected back to the laser. The Reservoir Computing system additionally includes a photo-detector for converting a laser output signal to an electrical signal. The Reservoir Computing system further includes an analog-to-digital converter for sampling the electrical signal. The Reservoir Computing system also includes a controller for applying a learning algorithm to the sampled electrical signal.
    Type: Grant
    Filed: June 3, 2016
    Date of Patent: December 26, 2017
    Assignee: International Business Machines Corporation
    Inventors: Daiju Nakano, Seiji Takeda, Toshiyuki Yamane
  • Publication number: 20170353059
    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 22, 2017
    Publication date: December 7, 2017
    Inventors: Daiju Nakano, Nobuyuki Ohba, Kohji Takano
  • Publication number: 20170353058
    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 22, 2017
    Publication date: December 7, 2017
    Inventors: Daiju Nakano, Nobuyuki Ohba, Kohji Takano
  • Publication number: 20170351950
    Abstract: Various Reservoir Computing systems and a method performed by a Reservoir Computing system are provided. A Reservoir Computing system includes a laser for emitting light. The Reservoir Computing system further includes a mirror for reflecting external feedback light back to the laser. The Reservoir Computing system also includes a modulator for modulating the external feedback light reflected back to the laser. The Reservoir Computing system additionally includes a photo-detector for converting a laser output signal to an electrical signal. The Reservoir Computing system further includes an analog-to-digital converter for sampling the electrical signal. The Reservoir Computing system also includes a controller for applying a learning algorithm to the sampled electrical signal.
    Type: Application
    Filed: June 3, 2016
    Publication date: December 7, 2017
    Inventors: DAIJU NAKANO, SEIJI TAKEDA, TOSHIYUKI YAMANE
  • Publication number: 20170353057
    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 22, 2017
    Publication date: December 7, 2017
    Inventors: Daiju Nakano, Nobuyuki Ohba, Kohji Takano
  • Publication number: 20170222487
    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: April 21, 2017
    Publication date: August 3, 2017
    Inventors: Daiju Nakano, Nobuyuki Ohba, Kohji Takano
  • Patent number: 9711998
    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 (110) comprises: a calculating unit (122) 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 (110) and a power receiving device (150); a power transmitting unit (128) for transmitting power via a power supply link with the power receiving device (150) at an output not exceeding the maximum value; an anomaly detecting unit (126) for detecting an anomaly in the power supply link on the basis of communication with the power receiving device (150) via the communication link; and an output control unit (124) for controlling the output on the basis of the detection of an anomaly in the power supply link.
    Type: Grant
    Filed: February 28, 2014
    Date of Patent: July 18, 2017
    Assignee: International Business Machines Corporation
    Inventors: Daiju Nakano, Nobuyuki Ohba, Kohji Takano
  • Patent number: 9712225
    Abstract: Methods and systems for receiving radio frequency (RF) signals include adjusting a digital baseband signal from a first RF front-end to compensate for errors based on a correlation value from a first correlator. A set of digital baseband signals from a set of respective additional RF front-ends is adjusted to compensate for errors based on correlation values from a second correlator. The adjusted digital baseband signal from the first RF front-end and the adjusted set of digital baseband signals from the set of respective additional RF front-ends are combined.
    Type: Grant
    Filed: September 22, 2016
    Date of Patent: July 18, 2017
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Kohji Takano, Daiju Nakano, Yasuteru Kohda
  • Patent number: 9696538
    Abstract: To provide a high-density optical interconnect device, information processing device and data transmission method which are able to suppress limitations caused by the widening of light beams and the size of lenses. An optical interconnect unit includes a plurality of first lenses and a plurality of second lenses corresponding to a plurality of light-emitting element groups, and a plurality of light beams emitted from the plurality of light-emitting element groups pass through plurality of first lenses and the plurality of second lenses. The optical interconnect unit also includes a plurality of third lenses and a plurality of fourth lenses, and light beam groups pass through any one of the plurality of third lenses and the plurality of fourth lenses, and are focused by any one of a plurality of light-receiving element groups that include a plurality of light-receiving elements.
    Type: Grant
    Filed: December 5, 2014
    Date of Patent: July 4, 2017
    Assignee: International Business Machines Corporation
    Inventors: Yasunao Katayama, Naoya Kuse, Daiju Nakano
  • Publication number: 20170170890
    Abstract: Methods and systems for receiving radio frequency (RF) signals include adjusting a digital baseband signal from a first RF front-end to compensate for errors based on a correlation value from a first correlator. A set of digital baseband signals from a set of respective additional RF front-ends is adjusted to compensate for errors based on correlation values from a second correlator. The adjusted digital baseband signal from the first RF front-end and the adjusted set of digital baseband signals from the set of respective additional RF front-ends are combined.
    Type: Application
    Filed: September 22, 2016
    Publication date: June 15, 2017
    Inventors: Kohji Takano, Daiju Nakano, Yasuteru Kohda
  • Patent number: 9473181
    Abstract: Methods and systems for receiving radio frequency (RF) signals include adjusting a digital baseband signal from a first RF front-end to compensate for errors based on a correlation value from a first Golay correlator. A set of digital baseband signals from a set of respective additional RF front-ends is adjusted to compensate for errors based on correlation values from a second Golay correlator. A digital baseband signal to be adjusted is selected on a time-sharing basis. The adjusted digital baseband signal from the first RF front-end and the adjusted set of digital baseband signals from the set of respective additional RF front-ends are combined.
    Type: Grant
    Filed: December 10, 2015
    Date of Patent: October 18, 2016
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Kohji Takano, Daiju Nakano, Yasuteru Kohda
  • Publication number: 20160231956
    Abstract: Embodiments include providing content requested by a user via an access point capable of wireless communication. Aspects include receiving the content provided by the management server and storing the content provided by the management server into a volatile memory provided in the wireless communication apparatus. Aspects also include storing difference data into a nonvolatile memory if it is requested to change the content stored in the volatile memory and monitoring a state of communication connection with the access point and whether or not a packet giving an instruction to hold the content has been received. Aspects further include deleting the content stored in the volatile memory if communication with the access point is disconnected or if the packet is unreceived.
    Type: Application
    Filed: October 28, 2015
    Publication date: August 11, 2016
    Inventors: YASUNAO KATAYAMA, DAIJU NAKANO, KOHJI TAKANO
  • Publication number: 20160156425
    Abstract: Wireless communication system, control apparatus, optimization method, wireless communication apparatus and program for optimizing a beam configuration of an area that is configured by dividing a wireless communication network. The wireless system includes a control apparatus and multiple wireless links which are arranged in an area where the control apparatus is in charge of optimizing a beam configuration. The control apparatus includes: a section for setting an antenna parameter for multiple wireless links in the area the control apparatus is in charge of, in accordance with a search algorithm; and section for evaluating the antenna parameter set by the setting section on the basis of radiation of electromagnetic waves.
    Type: Application
    Filed: November 20, 2015
    Publication date: June 2, 2016
    Inventors: Yasunao Katayama, Yasuteru Kohda, Daiju Nakano, Kohji Takano
  • Publication number: 20160156689
    Abstract: Embodiments include providing content requested by a user via an access point capable of wireless communication. Aspects include receiving the content provided by the management server and storing the content provided by the management server into a volatile memory provided in the wireless communication apparatus. Aspects also include storing difference data into a nonvolatile memory if it is requested to change the content stored in the volatile memory and monitoring a state of communication connection with the access point and whether or not a packet giving an instruction to hold the content has been received. Aspects further include deleting the content stored in the volatile memory if communication with the access point is disconnected or if the packet is unreceived.
    Type: Application
    Filed: December 15, 2015
    Publication date: June 2, 2016
    Inventors: YASUNAO KATAYAMA, DAIJU NAKANO, KOHJI TAKANO
  • Patent number: 9300436
    Abstract: A receptor of wireless signal in a wireless communication system can be configured to correct for degradations of signal quality. The reception apparatus can include a filter which is configured to create a filtered signal by make corrections to a reception signal which carries a symbol. Based on the created filtered signal, a symbol can be decided and weighted to evaluate the error of the original reception signal. Using the weighting information, a parameter of the filter can be updated to more accurately correct the reception signal.
    Type: Grant
    Filed: November 11, 2014
    Date of Patent: March 29, 2016
    Assignee: International Business Machines Corporation
    Inventors: Yasunao Katayama, Yasuteru Kohda, Daiju Nakano, Kohji Takano
  • Publication number: 20160049831
    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 (110) comprises: a calculating unit (122) 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 (110) and a power receiving device (150); a power transmitting unit (128) for transmitting power via a power supply link with the power receiving device (150) at an output not exceeding the maximum value; an anomaly detecting unit (126) for detecting an anomaly in the power supply link on the basis of communication with the power receiving device (150) via the communication link; and an output control unit (124) for controlling the output on the basis of the detection of an anomaly in the power supply link.
    Type: Application
    Filed: February 28, 2014
    Publication date: February 18, 2016
    Inventors: Daiju Nakano, Nobuyuki Ohba, Kohji Takano