Patents by Inventor Ryogo Kubo
Ryogo Kubo 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: 9680595Abstract: An optical line terminal which includes an observing unit that observes information of any one or all of an arrival interval of frames, an instantaneous bandwidth under use of a flow, a queue length of a queue temporarily storing the frames, and a traffic type, and a stop determining unit that dynamically determines a sleep time to be a period in which a sleep state where partial functions of the ONU are stopped is maintained, on the basis of the information obtained by the observing unit. The ONU is entered into a sleep state, immediately after communication ends, after a predetermined waiting time passes from when the communication ends, or after a waiting time determined on the basis of the information passes from when the communication ends.Type: GrantFiled: March 12, 2013Date of Patent: June 13, 2017Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Ryogo Kubo, Jun-ichi Kani, Akihiro Otaka
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Patent number: 9596046Abstract: An optical line terminal which includes an observing unit that observes information of any one or all of an arrival interval of frames, an instantaneous bandwidth under use of a flow, a queue length of a queue temporarily storing the frames, and a traffic type, and a stop determining unit that dynamically determines a sleep time to be a period in which a sleep state where partial functions of the ONU are stopped is maintained, on the basis of the information obtained by the observing unit. The ONU is entered into a sleep state, immediately after communication ends, after a predetermined waiting time passes from when the communication ends, or after a waiting time determined on the basis of the information passes from when the communication ends.Type: GrantFiled: March 12, 2013Date of Patent: March 14, 2017Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Ryogo Kubo, Jun-ichi Kani, Akihiro Otaka
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Patent number: 8929737Abstract: An optical line terminal which includes an observing unit that observes information of any one or all of an arrival interval of frames, an instantaneous bandwidth under use of a flow, a queue length of a queue temporarily storing the frames, and a traffic type, and a stop determining unit that dynamically determines a sleep time to be a period in which a sleep state where partial functions of the ONU are stopped is maintained, on the basis of the information obtained by the observing unit. The ONU is entered into a sleep state, immediately after communication ends, after a predetermined waiting time passes from when the communication ends, or after a waiting time determined on the basis of the information passes from when the communication ends.Type: GrantFiled: February 19, 2010Date of Patent: January 6, 2015Assignee: Nippon Telegraph and Telephone CorporationInventors: Ryogo Kubo, Jun-ichi Kani, Akihiro Otaka
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Publication number: 20130259468Abstract: An optical line terminal which includes an observing unit that observes information of any one or all of an arrival interval of frames, an instantaneous bandwidth under use of a flow, a queue length of a queue temporarily storing the frames, and a traffic type, and a stop determining unit that dynamically determines a sleep time to be a period in which a sleep state where partial functions of the ONU are stopped is maintained, on the basis of the information obtained by the observing unit. The ONU is entered into a sleep state, immediately after communication ends, after a predetermined waiting time passes from when the communication ends, or after a waiting time determined on the basis of the information passes from when the communication ends.Type: ApplicationFiled: March 12, 2013Publication date: October 3, 2013Applicant: Nippon Telegraph and Telephone CorporationInventors: Ryogo Kubo, Jun-ichi Kani, Akihiro Otaka
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Patent number: 8340520Abstract: ONU 2A for P-P includes a signal-type discriminating unit 22A that discriminates whether a type of a downstream signal transmitted from OLT is for the P-P or not, and outputs an enable/disable control signal that controls an optical transmitter to an enable state or a disable state, and a control unit 21 that controls the optical transmitter to the enable state or the disable state according to the enable/disable control signal, wherein the signal-type discriminating unit 22A outputs to the control unit 21 a disable control signal that controls the optical transmitter to the disable state under an initial state before the type of the downstream signal is discriminated, and outputs to the control unit 21 an enable control signal that controls the optical transmitter to the enable state after the downstream signal is discriminated to be for the P-P.Type: GrantFiled: September 18, 2008Date of Patent: December 25, 2012Assignee: Nippon Telegraph and Telephone CorporationInventors: Junichi Kani, Yukihiro Fujimoto, Ryogo Kubo, Mitsumasa Okada
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Publication number: 20110318008Abstract: An optical line terminal which includes an observing unit that observes information of any one or all of an arrival interval of frames, an instantaneous bandwidth under use of a flow, a queue length of a queue temporarily storing the frames, and a traffic type, and a stop determining unit that dynamically determines a sleep time to be a period in which a sleep state where partial functions of the ONU are stopped is maintained, on the basis of the information obtained by the observing unit. The ONU is entered into a sleep state, immediately after communication ends, after a predetermined waiting time passes from when the communication ends, or after a waiting time determined on the basis of the information passes from when the communication ends.Type: ApplicationFiled: February 19, 2010Publication date: December 29, 2011Inventors: Ryogo Kubo, Jun-ichi Kani, Akihiro Otaka
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Publication number: 20100239247Abstract: ONU 2A for P-P includes a signal-type discriminating unit 22A that discriminates whether a type of a downstream signal transmitted from OLT is for the P-P or not, and outputs an enable/disable control signal that controls an optical transmitter to an enable state or a disable state, and a control unit 21 that controls the optical transmitter to the enable state or the disable state according to the enable/disable control signal, wherein the signal-type discriminating unit 22A outputs to the control unit 21 a disable control signal that controls the optical transmitter to the disable state under an initial state before the type of the downstream signal is discriminated, and outputs to the control unit 21 an enable control signal that controls the optical transmitter to the enable state after the downstream signal is discriminated to be for the P-P.Type: ApplicationFiled: September 18, 2008Publication date: September 23, 2010Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Junichi Kani, Yukihiro Fujimoto, Ryogo Kubo, Mitsumasa Okada