Patents by Inventor Yukio Horiuchi
Yukio Horiuchi 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: 8126333Abstract: An OLT includes a first transmitter and receiver unit for transmitting and receiving signals with ONUs, a first communication control timer, a measurement unit for measuring a round trip time (RTT) between the OLT and each of ONUs, an advance notice time generation unit for generating an advance notice time signal by adding a predetermined time to a time information that indicates a time in the first communication control timer in response to a first time reference pulse, and a unit for controlling the first transmitter and receiver unit to transmit the generated advance notice time signal to each of the ONUs, and to transmit signals indicating measured RTT/2 to the respective ones of the ONUs.Type: GrantFiled: May 26, 2009Date of Patent: February 28, 2012Assignee: KDDI CorporationInventor: Yukio Horiuchi
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Patent number: 8100980Abstract: An artificial elbow joint including a humeral component made of metal and an ulnar component made of resins for replacing an elbow joint. The humeral component of this artificial elbow joint is configured by a substantially cylindrical trochlea and a stem extending from the trochlea that is inserted into the humeral; and the ulnar component is configured by a joint surface member which receives the trochlea of humeral component in a rotatable manner and a stem which extends from the joint surface member and is inserted into the ulna. The stem of the humeral component is curved gently downward overall so as to comply with the lordotic shape of the humeral, and the trochlea is turnable about the centerline of the stem.Type: GrantFiled: May 10, 2006Date of Patent: January 24, 2012Assignee: Nakashima Propeller Co., Ltd.Inventors: Hiroyasu Ikegami, Yukio Horiuchi, Shinichiro Takayama, Shigeki Momohara, Atsuhito Seki, Toshiyasu Nakamura, Atsushi Tanji, Keitaro Yamamoto
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Publication number: 20090297164Abstract: An OLT includes a first transmitter and receiver unit for transmitting and receiving signals with ONUs, a first communication control timer, a measurement unit for measuring a round trip time (RTT) between the OLT and each of ONUs, an advance notice time generation unit for generating an advance notice time signal by adding a predetermined time to a time information that indicates a time in the first communication control timer in response to a first time reference pulse, and a unit for controlling the first transmitter and receiver unit to transmit the generated advance notice time signal to each of the ONUs, and to transmit signals indicating measured RTT/2 to the respective ones of the ONUs.Type: ApplicationFiled: May 26, 2009Publication date: December 3, 2009Applicant: KDDI CORPORATIONInventor: Yukio HORIUCHI
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Patent number: 7551854Abstract: To inform a location of a caller to the other party in an IP phone system, a wireless IC tag preserving unique ID information is attached to an optical connector of a user connection port. The relations between locations of the optical connectors and ID information of corresponding wireless IC tags are stored in a port control database. An IC tag reader in an optical network unit (ONU) reads the ID information in the wireless IC tag attached to the optical connector to which the ONU is connected. When an emergency call is initialed, the ONU transmits destination information of the emergency call and the ID information of the wireless IC tag to a central station. A control terminal in the central station compares the ID information of the wireless IC tag against the port control database to determine a location of the optical connector. The central station adds the determined location information to the destination information of the emergency call and transmits the information to an IP network.Type: GrantFiled: June 29, 2005Date of Patent: June 23, 2009Assignee: KDDI CorporationInventors: Yukio Horiuchi, Noboru Edagawa
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Publication number: 20090105839Abstract: An artificial elbow joint including a humeral component made of metal and an ulnar component made of resins for replacing an elbow joint. The humeral component of this artificial elbow joint is configured by a substantially cylindrical trochlea and a stem extending from the trochlea that is inserted into the humeral; and the ulnar component is configured by a joint surface member which receives the trochlea of humeral component in a rotatable manner and a stem which extends from the joint surface member and is inserted into the ulna. The stem of the humeral component is curved gently downward overall so as to comply with the lordotic shape of the humeral, and the trochlea is turnable about the centerline of the stem.Type: ApplicationFiled: May 10, 2006Publication date: April 23, 2009Inventors: Hiroyasu Ikegami, Yukio Horiuchi, Shinichiro Takayama, Shigeki Momohara, Atsuhito Seki, Toshiyasu Nakamura, Atsushi Tanji, Keitaro Yamamoto
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Publication number: 20080279555Abstract: To inform a location of a caller to the other party in an IP phone system, a wireless IC tag preserving unique ID information is attached to an optical connector of a user connection port. The relations between locations of the optical connectors and ID information of corresponding wireless IC tags are stored in a port control database. An IC tag reader in an optical network unit (ONU) reads the ID information in the wireless IC tag attached to the optical connector to which the ONU is connected. When an emergency call is initiated, the ONU transmits destination information of the emergency call and the ID information of the wireless IC tag to a central station. A control terminal in the central station compares the ID information of the wireless IC tag against the port control database to determine a location of the optical connector. The central station adds the determined location information to the destination information of the emergency call and transmits the information to an IP network.Type: ApplicationFiled: June 12, 2008Publication date: November 13, 2008Inventors: Yukio Horiuchi, Noboru Edagawa
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Patent number: 7310315Abstract: In a communication system wherein a station transceiver and a plurality of nodes communicate in a TDM system through a signal transmission line, at least a part of the line is shared, a method to judge nodes performing normal operation from the station transceiver comprises a request step to request a return of a test pattern by transmitting a trigger signal for a designated node in the plurality of nodes, a correlation process step to process correlation between a received signal in a timeslot assigned to the designated node and a reference pattern corresponding to the designated node, and a judging step to judge whether the designated node is a normal node according to the correlation process result.Type: GrantFiled: November 21, 2002Date of Patent: December 18, 2007Assignee: KDDI CorporationInventors: Yukio Horiuchi, Masatoshi Suzuki
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Patent number: 7158728Abstract: An optical repeating system includes an optical transmitter and a plurality of optical amplifying repeaters. The optical transmitter specifies a part or all of the optical amplifying repeaters, and transmits a supervisory command to the specified optical amplifying repeaters as a first sub-signal via an uplink or downlink optical transmission line. The supervisory command is a command to supervise internal circuits of the optical amplifying repeaters. Receiving the supervisory command addressed thereto via the uplink or downlink optical transmission line, the optical amplifying repeaters each transmit a supervisory signal indicating a supervisory result corresponding to the supervisory command to optical receivers via the uplink and downlink optical transmission lines as a second sub-signal. The optical system can reduce the time take to acquire the supervisory information about the plurality of the optical amplifying repeaters.Type: GrantFiled: July 10, 2002Date of Patent: January 2, 2007Assignees: Mitsubishi Denki Kabushiki Kaisha, KDDI Corporation, KDDI Submarine Cable Systems Inc.Inventors: Yasunori Kasahara, Hideki Goto, Takashi Mizuochi, Kenkichi Shimomura, Yukio Horiuchi, Masatoshi Suzuki, Daishi Ishii, Toshio Kawazawa
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Patent number: 7142787Abstract: This invention discloses a method to easily extract a header from an optical packet. An optical data transmission method to transmit an optical packet composed of a header and data containing steps of generating a second clock which has a frequency equal to one integer of that of a first clock carrying the data and synchronizes with the first clock, and carrying the header information on the second clock.Type: GrantFiled: June 19, 2001Date of Patent: November 28, 2006Assignee: KDDI CorporationInventors: Yukio Horiuchi, Shu Yamamoto
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Patent number: 7130544Abstract: An optical repeating system includes an optical transmitter and an optical amplifying repeater. The optical transmitter transmits a supervisory command and a control command to the optical amplifying repeater as a first sub-signal. The supervisory command is a command to supervise internal circuits of the optical amplifying repeater, and the control command is a command to control the optical amplifying repeater. The optical amplifying repeater includes multiple sub-modules each for amplifying and repeating main signals on multiple sets of optical transmission lines. When receiving the supervisory command via the optical transmission line, each sub-module transmits a supervisory signal indicating the supervisory result associated with the supervisory command to an optical receiver as a second sub-signal.Type: GrantFiled: July 11, 2002Date of Patent: October 31, 2006Assignees: Mitsubishi Denki Kabushiki Kaisha, KDDI Corporation, KDDI Submarine Cable Systems Inc.Inventors: Yasunori Kasahara, Hideki Goto, Takashi Mizuochi, Kenkichi Shimomura, Masatoshi Suzuki, Yukio Horiuchi, Daishi Ishii, Toshio Kawazawa
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Publication number: 20050286893Abstract: To inform a location of a caller to the other party in an IP phone system, a wireless IC tag preserving unique ID information is attached to an optical connector of a user connection port. The relations between locations of the optical connectors and ID information of corresponding wireless IC tags are stored in a port control database. An IC tag reader in an optical network unit (ONU) reads the ID information in the wireless IC tag attached to the optical connector to which the ONU is connected. When an emergency call is initialed, the ONU transmits destination information of the emergency call and the ID information of the wireless IC tag to a central station. A control terminal in the central station compares the ID information of the wireless IC tag against the port control database to determine a location of the optical connector. The central station adds the determined location information to the destination information of the emergency call and transmits the information to an IP network.Type: ApplicationFiled: June 29, 2005Publication date: December 29, 2005Inventors: Yukio Horiuchi, Noboru Edagawa
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Patent number: 6914718Abstract: In an optical repeating system including an optical transmitter and optical amplifying repeaters, the optical transmitter specifies one optical amplifying repeater, and transmits to the optical amplifying repeater a supervisory command to supervise internal circuits of the optical amplifying repeater and a control command to control amplification factors of optical amplifiers of the optical amplifying repeater as a first sub-signal. Receiving the supervisory command via an optical transmission line, the optical amplifying repeater transmits a supervisory signal indicating a supervisory result corresponding to the supervisory command to optical receivers via optical transmission lines as a second sub-signal. Receiving the control command via the optical transmission line, the optical amplifying repeater is controlled to change amplification factors of the optical amplifiers in response to the control command.Type: GrantFiled: July 11, 2002Date of Patent: July 5, 2005Assignees: Mitsubishi Denki Kabushiki Kaisha, KDDI Corporation, KDDI Submarine Cable Systems Inc.Inventors: Yasunori Kasahara, Hideki Goto, Takashi Mizuochi, Kenkichi Shimomura, Yukio Horiuchi, Masatoshi Suzuki, Toshio Kawazawa, Daishi Ishii
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Patent number: 6867908Abstract: The optical amplifier according to the present invention is constructed such that the amount of the electric current fed to the power feeding line 2a is first detected by the current detection means, and then a setting signal is generated to each of the bypass circuits 22 and 23 in accordance with the thus detected amount of the fed current, and thereafter the output level of each of the optical repeater circuits 11 and 12 is controlled respectively by the bypass circuits 22 and 23, so that the output level of these repeater circuits 11 and 12 can be controlled in accordance with the amount of the current fed to the power feeding line 2a.Type: GrantFiled: March 31, 2003Date of Patent: March 15, 2005Assignees: Mitsubishi Denki Kabushiki Kaisha, KDD Corporation, KDD Submarine Cable Systems Inc.Inventors: Aritomo Uemura, Kiwami Matsushita, Yukio Horiuchi, Masatoshi Suzuki, Noboru Edagawa, Shu Yamamoto, Shigeyuki Akiba
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Patent number: 6804469Abstract: A supervisory system and supervisory method of an optical amplifier repeater are proposed that can implement operation supervision taking account of the characteristics of individual supervisory targets of the optical amplifier repeater, thereby achieving higher reliability.Type: GrantFiled: June 27, 2001Date of Patent: October 12, 2004Assignees: Mitsubishi Denki Kabushiki Kaisha, KDDI Corporation, KDD Submarine Cable Systems Inc.Inventors: Yasunori Kasahara, Hideki Goto, Takashi Mizuochi, Kenkichi Shimomura, Yukio Horiuchi, Masatoshi Suzuki, Daishi Ishii, Toshio Kawazawa
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Publication number: 20030184850Abstract: The optical amplifier according to the present invention is constructed such that the amount of the electric current fed to the power feeding line 2a is first detected by the current detection means, and then a setting signal is generated to each of the bypass circuits 22 and 23 in accordance with the thus detected amount of the fed current, and thereafter the output level of each of the optical repeater circuits 11 and 12 is controlled respectively by the bypass circuits 22 and 23, so that the output level of these repeater circuits 11 and 12 can be controlled in accordance with the amount of the current fed to the power feeding line 2a.Type: ApplicationFiled: March 31, 2003Publication date: October 2, 2003Applicants: Mitsubishi Denki Kabushiki Kaisha, KDD Corporation and KDD Submarine Cable Systems, Inc.Inventors: Aritomo Uemura, Kiwami Matsushita, Yukio Horiuchi, Masatoshi Suzuki, Noboru Edagawa, Shu Yamamoto, Shigeyuki Akiba
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Patent number: 6614588Abstract: The optical amplifier according to the present invention is constructed such that the amount of the electric current fed to the power feeding line 2a is first detected by the current detection means, and then a setting signal is generated to each of the bypass circuits 22 and 23 in accordance with the thus detected amount of the fed current, and thereafter the output level of each of the optical repeater circuits 11 and 12 is controlled respectively by the bypass circuits 22 and 23, so that the output level of these repeater circuits 11 and 12 can be controlled in accordance with the amount of the current fed to the power feeding line 2a.Type: GrantFiled: November 29, 2000Date of Patent: September 2, 2003Assignees: Mitsubishi Denki Kabushiki Kaisha, KDD Corporation, KDD Submarine Cable Systems Inc.Inventors: Aritomo Uemura, Kiwami Matsushita, Yukio Horiuchi, Masatoshi Suzuki, Noboru Edagawa, Shu Yamamoto, Shigeyuki Akiba
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Patent number: 6594003Abstract: A measuring system of transmission characteristics comprises a reference signal light generator for generating reference signal light of a reference wavelength optically intensity-modulated at a reference frequency, a measuring signal light generator for generating measuring signal light of a measuring wavelength optically intensity-modulated at a measuring frequency synchronizing with the reference frequency, a multiplexer for multiplexing the reference signal light and measuring signal light respectively generated by the reference signal light generator and measuring signal light generator and outputting them onto a to-be-measured optical line, a photodetector for converting the lights propagated on the to-be-measured line into electric signals, a reference frequency extractor for extracting the component of the reference frequency from the output of the photodetector, and a phase detector for detecting a phase of a frequency component corresponding to the measuring frequency contained in the output of theType: GrantFiled: April 20, 2000Date of Patent: July 15, 2003Assignees: KDD Corporation, KDD Submarine Cable Systems Inc.Inventors: Yukio Horiuchi, Toshio Kawazawa
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Publication number: 20030118280Abstract: An optical transmission system comprises a light source to output an optical carrier having a predetermined wavelength, a photoelectric converter, an optical transmission line, an optical circulator to apply an output light from the light source to one end of the optical transmission line and to apply a light through the same end of the optical transmission line to the photoelectric converter, and an optical modulator disposed on the other end of the optical transmission line to return a portion of the light from the optical transmission line as a reference light to the optical transmission line without modulation and to modulate another portion of the light from the optical transmission line with a transmission signal to return it to the optical transmission line as a modulated light.Type: ApplicationFiled: December 2, 2002Publication date: June 26, 2003Inventors: Tetsuya Miyazaki, Ryu Watanabe, Hideaki Tanaka, Masatoshi Suzuki, Yukio Horiuchi
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Publication number: 20030095577Abstract: In a communication system wherein a station transceiver and a plurality of nodes communicate in a TDM system through a signal transmission line, at least apart of the line is shared, a method to judge nodes performing normal operation from the station transceiver comprises a request step to request a return of a test pattern by transmitting a trigger signal for a designated node in the plurality of nodes, a correlation process step to process correlation between a received signal in a timeslot assigned to the designated node and a reference pattern corresponding to the designated node, and a judging step to judge whether the designated node is a normal node according to the correlation process result.Type: ApplicationFiled: November 21, 2002Publication date: May 22, 2003Inventors: Yukio Horiuchi, Masatoshi Suzuki
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Patent number: 6556325Abstract: An optical repeater monitoring system, according to the invention, comprises an oscillating source, a reference signal transmitter for transmitting a reference signal of a predetermined frequency generated from an output of the oscillating source to a first optical fiber, and an optical repeater. The optical repeater has a first photodetector for converting light from the first optical fiber into an electrical signal, a reference signal extractor for extracting a component of the reference signal from an output of the first photodetector, a carrier generator for generating a carrier from an output of the reference signal extractor, a monitor signal modulator for modulating the carrier generated by the carrier generator with a monitor signal showing a operating state of the optical repeater, a transmitter for transmitting an output of the monitor signal modulator to a second optical fiber.Type: GrantFiled: February 18, 2000Date of Patent: April 29, 2003Assignees: KDD Corporation, KDD Submarine Cable Systems, Inc.Inventors: Yukio Horiuchi, Masatoshi Suzuki, Shu Yamamoto, Shigeyuki Akiba