Patents by Inventor Toshihisa Kyouno
Toshihisa Kyouno 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).
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Patent number: 9742553Abstract: A transmission apparatus includes: a first plug-in unit including: a clock generator to generate a first clock, a first frame-pulse generator to generate a first frame-pulse-signal based on the first clock; a detector to detect a phase-difference between a first phase of the first frame-pulse-signal and a second phase of a second frame-pulse-signal transmitted from other plug-in unit, and generate phase-difference information based on the phase-difference, and a first transmitter to transmit a control-signal including the phase-difference information to the other plug-in unit; and a second plug-in unit being the other plug-in unit, including: a receiver to receive the control-signal, a controller to control a phase of a second clock of the second plug-in unit, based on the phase-difference information, a second frame-pulse generator to generate the second frame-pulse-signal based on the second clock, and a second transmitter to transmit the second frame-pulse-signal to the first plug-in unit.Type: GrantFiled: November 21, 2016Date of Patent: August 22, 2017Assignee: FUJITSU LIMITEDInventor: Toshihisa Kyouno
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Publication number: 20170155501Abstract: A transmission apparatus includes: a first plug-in unit including: a clock generator to generate a first clock, a first frame-pulse generator to generate a first frame-pulse-signal based on the first clock; a detector to detect a phase-difference between a first phase of the first frame-pulse-signal and a second phase of a second frame-pulse-signal transmitted from other plug-in unit, and generate phase-difference information based on the phase-difference, and a first transmitter to transmit a control-signal including the phase-difference information to the other plug-in unit; and a second plug-in unit being the other plug-in unit, including: a receiver to receive the control-signal, a controller to control a phase of a second clock of the second plug-in unit, based on the phase-difference information, a second frame-pulse generator to generate the second frame-pulse-signal based on the second clock, and a second transmitter to transmit the second frame-pulse-signal to the first plug-in unit.Type: ApplicationFiled: November 21, 2016Publication date: June 1, 2017Applicant: FUJITSU LIMITEDInventor: Toshihisa Kyouno
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Patent number: 8341469Abstract: An FPGA configuration device comprises: a read operation control unit which performs control to read configuration data from a configured FPGA; and a configuration data transfer unit which transfers the configuration data read out of the FPGA to a memory.Type: GrantFiled: December 31, 2008Date of Patent: December 25, 2012Assignee: Fujitsu LimitedInventors: Kenichi Miyama, Noboru Shimizu, Hiromitsu Yanaka, Toshihisa Kyouno, Nobuyuki Kobayashi
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Patent number: 7847589Abstract: A configuration data feeding device for feeding configuration data to a plurality of FPGAs includes a memory for storing configuration data that are fed to the plurality of FPGAs, a plurality of interface units for outputting the configuration data read out from the memory, according to their specific configuration layouts, an interface selection unit for selecting, out of the plurality of interface units, an interface unit that is to be used for configuring each of the plurality of FPGAs, and a circuit-switching unit for switching the circuits that connect the FPGAs to the interface units depending upon the selection by the interface selection unit.Type: GrantFiled: November 25, 2009Date of Patent: December 7, 2010Assignee: Fujitsu LimitedInventors: Toshihisa Kyouno, Kenichi Miyama, Nobuyuki Kobayashi, Noboru Shimizu
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Publication number: 20100066408Abstract: A configuration data feeding device for feeding configuration data to a plurality of FPGAs includes a memory for storing configuration data that are fed to the plurality of FPGAs, a plurality of interface units for outputting the configuration data read out from the memory, according to their specific configuration layouts, an interface selection unit for selecting, out of the plurality of interface units, an interface unit that is to be used for configuring each of the plurality of FPGAs, and a circuit-switching unit for switching the circuits that connect the FPGAs to the interface units depending upon the selection by the interface selection unit.Type: ApplicationFiled: November 25, 2009Publication date: March 18, 2010Applicant: FUJITSU LIMITEDInventors: Toshihisa Kyouno, Kenichi Miyama, Nobuyuki Kobayashi, Noboru Shimizu
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Publication number: 20090292978Abstract: An FPGA configuration device comprises: a read operation control unit which performs control to read configuration data from a configured FPGA; and a configuration data transfer unit which transfers the configuration data read out of the FPGA to a memory.Type: ApplicationFiled: December 31, 2008Publication date: November 26, 2009Applicant: FUJITSU LIMITEDInventors: Kenichi Miyama, Noboru Shimizu, Hiromitsu Yanaka, Toshihisa Kyouno, Nobuyuki Kobayashi
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Patent number: 7349632Abstract: A method of wavelength selection control is disclosed.Type: GrantFiled: June 3, 2005Date of Patent: March 25, 2008Assignee: Fujitsu LimitedInventors: Masaji Noguchi, Toshihisa Kyouno, Tomohiro Ueno, Hideyuki Miyata, Yasuhiko Aoki
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Publication number: 20070133996Abstract: A transmitter transmits digital terrestrial wave information related to a digital terrestrial broadcast by using a communication system of Wave Division Multiplexing (WDM). The transmitter calculates a synchronizing difference, which is a difference between a reference signal and a synchronizing signal synchronizing with the lead of each image picture contained in image data of the digital terrestrial wave information, and transmits calculated synchronizing difference and the digital terrestrial wave information to a transmission destination.Type: ApplicationFiled: February 28, 2006Publication date: June 14, 2007Inventor: Toshihisa Kyouno
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Patent number: 7187814Abstract: A drop-type AOTF is used as a configuration for removing from a through signal an optical signal having the same wavelength as that of an optical signal to be added. To the drop-type AOTF, RF signals are input to always select all of wavelengths, and an RF signal is not input for a wavelength desired to be rejected. As a result, the optical signal having the wavelength for which the RF signal is stopped is not selected by the drop-type AOTF, and cannot pass through. Since there is only one RF signal whose input is stopped, a “drawing effect” does not occur, and control of an optical add/drop device is simplified. Additionally, since high-speed switching can be made, and a wavelength to be added can be varied, restrictions are not imposed on a network configuration.Type: GrantFiled: October 8, 2004Date of Patent: March 6, 2007Assignee: Fujitsu LimitedInventors: Masaji Noguchi, Toshihisa Kyouno, Hideyuki Miyata, Yutaka Kai
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Publication number: 20060189281Abstract: A method of wavelength selection control is disclosed.Type: ApplicationFiled: June 3, 2005Publication date: August 24, 2006Applicant: FUJITSU LIMITEDInventors: Masaji Noguchi, Toshihisa Kyouno, Tomohiro Ueno, Hideyuki Miyata, Yasuhiko Aoki
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Patent number: 7092638Abstract: An optical multiplex communication system includes a transmission part and a receiving part, wherein the transmission part includes a transmission quality detecting part which measures and transmits a transmission quality information for the channels based on a request from the transmission part; the receiving part includes a variable optical attenuation part controls the optical signal level for the channels, an optical level setting part controls the variable optical attenuation part based on a setting value, a setting control part adding the setting value to the optical level setting part based on a request for setting.Type: GrantFiled: October 15, 2002Date of Patent: August 15, 2006Assignee: Fujitsu LimitedInventors: Yoshihisa Funami, Tetsuo Wada, Kazumaro Takaiwa, Toshihisa Kyouno, Yasushi Tateno, Yoshiaki Shibayama, Akinori Nishiie
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Publication number: 20050271314Abstract: A drop-type AOTF is used as a configuration for removing from a through signal an optical signal having the same wavelength as that of an optical signal to be added. To the drop-type AOTF, RF signals are input to always select all of wavelengths, and an RF signal is not input for a wavelength desired to be rejected. As a result, the optical signal having the wavelength for which the RF signal is stopped is not selected by the drop-type AOTF, and cannot pass through. Since there is only one RF signal whose input is stopped, a “drawing effect” does not occur, and control of an optical add/drop device is simplified. Additionally, since high-speed switching can be made, and a wavelength to be added can be varied, restrictions are not imposed on a network configuration.Type: ApplicationFiled: October 8, 2004Publication date: December 8, 2005Applicant: FUJITSU LIMITEDInventors: Masaji Noguchi, Toshihisa Kyouno, Hideyuki Miyata, Yutaka Kai
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Publication number: 20030147647Abstract: An optical multiplex communication system includes a transmission part and a receiving part, wherein the transmission part includes a transmission quality detecting part which measures and transmits a transmission quality information for the channels based on a request from the transmission part; the receiving part includes a variable optical attenuation part controls the optical signal level for the channels, an optical level setting part controls the variable optical attenuation part based on a setting value, a setting control part adding the setting value to the optical level setting part based on a request for setting.Type: ApplicationFiled: October 15, 2002Publication date: August 7, 2003Applicant: FUJITSU LIMITEDInventors: Yoshihisa Funami, Tetsuo Wada, Kazumaro Takaiwa, Toshihisa Kyouno, Yasushi Tateno, Yoshiaki Shibayama, Akinori Nishiie