Patents by Inventor Kosuke Komaki

Kosuke Komaki 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: 20220215501
    Abstract: An information processing apparatus includes a processor configured to execute a process including: accepting, from a first user, a bet placed on a first competition based on betting contents of a second user, who is different from the first user, for the first competition, and notifying the first user of information on a second competition different from the first competition when a bet on the second competition from the second user is accepted in the accepting.
    Type: Application
    Filed: March 22, 2022
    Publication date: July 7, 2022
    Inventors: Koji ISHII, Kosuke KURIYAMA, Masanori MATSUMOTO, Nobutaka KOMAKI
  • Publication number: 20220207965
    Abstract: An information processing apparatus which accepts a bet for a competition in which a bet can be placed on a betting target includes a processor configured to execute a process including: accepting a designation of a betting target for the competition from a first player, selecting a second player who places a bet on the same betting target as the betting target designated by the first player from among a plurality of second players who predict outcomes of the competition, and displaying information indicating the second player selected in the selecting on a terminal of the first player.
    Type: Application
    Filed: March 17, 2022
    Publication date: June 30, 2022
    Inventors: Nobutaka KOMAKI, Kosuke KURIYAMA, Masanori MATSUMOTO
  • Publication number: 20220207964
    Abstract: An information processing apparatus includes a processor configured to execute a process including executing, according to an instruction of a bettor who places a bet on a competition, a bettor's bet for a first competition on the basis of a betting target designated by a tipster for the first competition. If the bettor's bet for the first competition is a win, the executing includes executing a bettor's bet for a second competition that takes place after the first competition, on the basis of a betting target designated by the tipster for the second competition.
    Type: Application
    Filed: March 17, 2022
    Publication date: June 30, 2022
    Inventors: Kosuke KURIYAMA, Masanori MATSUMOTO, Nobutaka KOMAKI
  • Patent number: 11223385
    Abstract: An optical apparatus includes an attenuator, a photoelectric convertor, an amplifier, and a processor. the attenuator attenuates signal light. The photoelectric convertor converts the signal light attenuated by the attenuator into an electric signal. The amplifier adjusts a gain of the electric signal. The processor detects a monitor value of a target channel from an output signal of the amplifier, calculates a power value of the target channel from the detected monitor value, calculates a difference value between the power value and a target power value, calculates a attenuation amount by adding a current attenuation amount, which is currently set to the attenuator, to the difference value, controls the gain of the amplifier so that the difference value of the target channel is minimized when the set attenuation amount is less than zero, and sets the attenuation amount to the attenuator when the attenuation amount is zero or more.
    Type: Grant
    Filed: April 16, 2021
    Date of Patent: January 11, 2022
    Assignee: FUJITSU LIMITED
    Inventors: Shoichi Murakami, Taku Saito, Kosuke Komaki
  • Publication number: 20210409124
    Abstract: An optical apparatus includes an attenuator, a photoelectric convertor, an amplifier, and a processor. the attenuator attenuates signal light. The photoelectric convertor converts the signal light attenuated by the attenuator into an electric signal. The amplifier adjusts a gain of the electric signal. The processor detects a monitor value of a target channel from an output signal of the amplifier, calculates a power value of the target channel from the detected monitor value, calculates a difference value between the power value and a target power value, calculates a attenuation amount by adding a current attenuation amount, which is currently set to the attenuator, to the difference value, controls the gain of the amplifier so that the difference value of the target channel is minimized when the set attenuation amount is less than zero, and sets the attenuation amount to the attenuator when the attenuation amount is zero or more.
    Type: Application
    Filed: April 16, 2021
    Publication date: December 30, 2021
    Applicant: FUJITSU LIMITED
    Inventors: Shoichi Murakami, Taku Saito, Kosuke Komaki
  • Patent number: 11196485
    Abstract: A network system includes a first device and a second device coupled to the first device. The second device configured to calculate a bandwidth of an optical signal narrowed by a wavelength filter from the number of wavelength filters on a transmission route of the optical signal, to select, based on a plurality of combinations of a degree of multilevel and the baud rate, and a correspondence between a lower limit value of a bandwidth of the optical signal and a lower limit value of an optical signal to noise ratio (OSNR) for maintaining predetermined quality of the optical signal, one or more first combinations from the plurality of combinations, to select a second combination from the one or more first combinations, and to set the degree of multilevel and the baud rate of the second combination in the first device.
    Type: Grant
    Filed: September 1, 2020
    Date of Patent: December 7, 2021
    Assignee: FUJITSU LIMITED
    Inventors: Taizo Maeda, Kosuke Komaki
  • Publication number: 20210075506
    Abstract: A network system includes a first device and a second device coupled to the first device. The second device configured to calculate a bandwidth of an optical signal narrowed by a wavelength filter from the number of wavelength filters on a transmission route of the optical signal, to select, based on a plurality of combinations of a degree of multilevel and the baud rate, and a correspondence between a lower limit value of a bandwidth of the optical signal and a lower limit value of an optical signal to noise ratio (OSNR) for maintaining predetermined quality of the optical signal, one or more first combinations from the plurality of combinations, to select a second combination from the one or more first combinations, and to set the degree of multilevel and the baud rate of the second combination in the first device.
    Type: Application
    Filed: September 1, 2020
    Publication date: March 11, 2021
    Applicant: FUJITSU LIMITED
    Inventors: Taizo MAEDA, Kosuke Komaki
  • Patent number: 10715363
    Abstract: An optical communication apparatus has an interface circuit that acquires transfer condition information including a bit rate and a channel spacing of an optical network, a processor that selects a modulation scheme in accordance with the transfer condition information and operates in the modulation scheme, wherein the processor is configured to select a first modulation scheme when the bit rate is greater than a first value in accordance with the channel spacing, and select a second modulation scheme when the bit rate is smaller than the first value, the second modulation scheme having a data transfer performance higher than the first modulation scheme.
    Type: Grant
    Filed: September 3, 2019
    Date of Patent: July 14, 2020
    Assignee: FUJITSU LIMITED
    Inventors: Naoya Okada, Taizo Maeda, Kosuke Komaki
  • Publication number: 20200213009
    Abstract: An optical communication apparatus includes an interface circuit that acquires bit rate information of an optical network, and a processor that selects a modulation scheme in accordance with the bit rate information and operates in the modulation scheme, wherein the processor is configured to select a first modulation scheme when the bit rate is equal to or greater than a first value, and select a second modulation scheme when the bit rate is smaller than the first value, the second modulation scheme having a data transfer performance higher than the first modulation scheme.
    Type: Application
    Filed: December 10, 2019
    Publication date: July 2, 2020
    Applicant: FUJITSU LIMITED
    Inventors: Naoya OKADA, Taizo MAEDA, Kosuke Komaki
  • Patent number: 10491307
    Abstract: There is provided an optical transmitter including a memory, a processor coupled to the memory and the processor to generate an electric signal, an optical generator to generate light, an optical modulator to modulate the light with the electric signal to create an optical signal, a first voltage electrode to apply a first voltage to the optical signal, a second voltage electrode to apply a second voltage to the optical signal to which the first voltage is applied, and a detector to detect an optical power of the optical signal to which the second voltage is applied, wherein the processor stops generating the electric signal, controls the first voltage electrode to change the first voltage after the stop of generating the electric signal, and controls the second voltage electrode to change the second voltage according to the detected optical power after the change of the first voltage.
    Type: Grant
    Filed: May 11, 2017
    Date of Patent: November 26, 2019
    Assignee: FUJITSU LIMITED
    Inventors: Shuzo Matsushita, Taku Saito, Kosuke Komaki, masamichi sugamoto, Hironobu Hongou
  • Patent number: 10020879
    Abstract: An optical transmission apparatus may include a coherent detector, a photoelectric converter, an amplifier, a gain controller, and an optical power monitor. The coherent detector may perform a coherent detection on received light including a plurality of wavelengths to select light having any one of the wavelengths. The photoelectric converter may convert the light having the selected wavelength to an electrical signal. The amplifier may amplify the electrical signal. The gain controller may control a gain of the amplifier depending on an output amplitude of the amplifier. The optical power monitor may calculate an optical power level of the selected wavelength based on the gain and the output amplitude.
    Type: Grant
    Filed: October 21, 2016
    Date of Patent: July 10, 2018
    Assignee: FUJITSU LIMITED
    Inventors: Taku Saito, Taketo Endo, Kosuke Komaki
  • Patent number: 9882647
    Abstract: An optical transmission apparatus includes: a coherent detector configured to receive light including different polarization components from an optical transmission path, and perform coherent detection of received light including the different polarization components; an adaptive equalizer configured to adaptively equalize, by a digital filter, a complex electric signal for each of the polarization components obtained by the coherent detection, a gain value for controlling an amplitude of the complex electric signal being applied to the complex electric signal; and a polarization dependent loss monitor configured to determine a polarization dependent loss of the optical transmission path, based on a correction filter parameter obtained by correcting a filter parameter of the digital filter according to the gain value, the filter parameter being adaptively updated by an adaptive equalization of the adaptive equalizer.
    Type: Grant
    Filed: February 2, 2016
    Date of Patent: January 30, 2018
    Assignee: FUJITSU LIMITED
    Inventors: Taketo Endo, Kosuke Komaki, Taku Saito, Hirofumi Araki, Makoto Shimizu, Hiroshi Nishida
  • Publication number: 20170331559
    Abstract: There is provided an optical transmitter including a memory, a processor coupled to the memory and the processor to generate an electric signal, an optical generator to generate light, an optical modulator to modulate the light with the electric signal to create an optical signal, a first voltage electrode to apply a first voltage to the optical signal, a second voltage electrode to apply a second voltage to the optical signal to which the first voltage is applied, and a detector to detect an optical power of the optical signal to which the second voltage is applied, wherein the processor stops generating the electric signal, controls the first voltage electrode to change the first voltage after the stop of generating the electric signal, and controls the second voltage electrode to change the second voltage according to the detected optical power after the change of the first voltage.
    Type: Application
    Filed: May 11, 2017
    Publication date: November 16, 2017
    Applicant: FUJITSU LIMITED
    Inventors: Shuzo Matsushita, Taku Saito, Kosuke Komaki, Masamichi Sugamoto, Hironobu Hongou
  • Patent number: 9722704
    Abstract: An optical transmission apparatus includes: an optical receiver configured to receive an optical signal; a variable optical attenuator configured to adjust a power of the optical signal to be input to the optical receiver according to a variable attenuation amount; and a controller configured to control the attenuation amount of the variable optical attenuator based on an electrical signal obtained by performing a coherent detection and a photoelectric conversion on the optical signal received by the optical receiver.
    Type: Grant
    Filed: February 1, 2016
    Date of Patent: August 1, 2017
    Assignee: FUJITSU LIMITED
    Inventors: Taku Saito, Kosuke Komaki, Taketo Endo, Shuzo Matsushita, Hirofumi Araki, Hiroshi Nishida, Makoto Shimizu
  • Patent number: 9698905
    Abstract: An optical transmission system includes comprising: a first optical transmission apparatus to transmit wavelength-multiplexed optical signals; and a second optical transmission apparatus to receive the wavelength-multiplexed optical signals, the second optical transmission apparatus including: a receiver to perform digital coherent reception; a wavelength spacing monitor to transform a reception signal obtained by the digital coherent reception from a time domain signal to a frequency domain spectrum signal, and to monitor wavelength spacing of the spectrum signal; and a transmitter to transmit, to the first optical transmission apparatus, wavelength control information according to a monitor result obtained by the wavelength spacing monitor or the monitor result, wherein the first optical transmission apparatus includes: a receiver to receive the wavelength control information or the monitor result; and a control unit to control the wavelength spacing based on the wavelength control information or the monito
    Type: Grant
    Filed: May 14, 2015
    Date of Patent: July 4, 2017
    Assignee: FUJITSU LIMITED
    Inventors: Taku Saito, Kosuke Komaki, Taketo Endo
  • Publication number: 20170126315
    Abstract: An optical transmission apparatus may include a coherent detector, a photoelectric converter, an amplifier, a gain controller, and an optical power monitor. The coherent detector may perform a coherent detection on received light including a plurality of wavelengths to select light having any one of the wavelengths. The photoelectric converter may convert the light having the selected wavelength to an electrical signal. The amplifier may amplify the electrical signal. The gain controller may control a gain of the amplifier depending on an output amplitude of the amplifier. The optical power monitor may calculate an optical power level of the selected wavelength based on the gain and the output amplitude.
    Type: Application
    Filed: October 21, 2016
    Publication date: May 4, 2017
    Applicant: FUJITSU LIMITED
    Inventors: Taku Saito, Taketo Endo, Kosuke Komaki
  • Patent number: 9531496
    Abstract: An optical transmission device includes a receiver that receives first light, a transmitter that outputs second light, a memory, a processor coupled to the memory, configured to control a first optical level of the second light in such a way that a second optical level calculated based on an optical level of the received first light and an optical level of the second light that is output from the transmitter becomes a predetermined target value, a combiner that combines the received first light and the second light for which the first optical level is controlled by the processor, and an amplifier that amplifies the combined light.
    Type: Grant
    Filed: November 3, 2014
    Date of Patent: December 27, 2016
    Assignee: FUJITSU LIMITED
    Inventors: Masahiro Yuki, Norifumi Shukunami, Kosuke Komaki
  • Patent number: 9438343
    Abstract: A transmitting device includes a transmitter configured to transmit signal light to an external receiver over a medium included in a transmission line; and a controller configured to control a transmission level of the signal light in accordance with a reception level of probe light which is input from the receiver over the medium in the transmission line.
    Type: Grant
    Filed: July 30, 2013
    Date of Patent: September 6, 2016
    Assignee: FUJITSU LIMITED
    Inventors: Norifumi Shukunami, Kosuke Komaki
  • Patent number: 9432113
    Abstract: An optical transmission device including a wavelength selective switch including plural output ports, an optical intensity monitoring device that receives each optical signal output from the plural output ports of the wavelength selective switch and monitors the optical intensity of the optical signals, and a controller that controls optical intensity of the optical signals from the plural output ports of the wavelength selective switch based on the optical intensities monitored by the optical intensity monitoring device.
    Type: Grant
    Filed: December 10, 2014
    Date of Patent: August 30, 2016
    Assignee: FUJITSU LIMITED
    Inventors: Hiroki Oi, Kosuke Komaki
  • Publication number: 20160248513
    Abstract: An optical transmission apparatus includes: an optical receiver configured to receive an optical signal; a variable optical attenuator configured to adjust a power of the optical signal to be input to the optical receiver according to a variable attenuation amount; and a controller configured to control the attenuation amount of the variable optical attenuator based on an electrical signal obtained by performing a coherent detection and a photoelectric conversion on the optical signal received by the optical receiver.
    Type: Application
    Filed: February 1, 2016
    Publication date: August 25, 2016
    Applicant: FUJITSU LIMITED
    Inventors: Taku Saito, Kosuke Komaki, Taketo Endo, Shuzo Matsushita, Hirofumi Araki, Hiroshi Nishida, Makoto Shimizu