Patents by Inventor Yuan Rao

Yuan Rao 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: 11855887
    Abstract: A data flow redirection method to overcome a disadvantage that a quantity of adjustable data flows is relatively small due to limited space of a flow specification forwarding table. The method includes receiving, by a network device, a control message sent by a control device, where the control message carries redirection routing information of a data flow and a redirection routing indication, the redirection routing indication instructing to convert the redirection routing information of the data flow into a forwarding entry in a target forwarding table, and tablespace of the target forwarding table is greater than tablespace of a flow specification forwarding table of the network device, and converting, by the network device, the redirection routing information of the data flow into the forwarding entry in the target forwarding table according to the redirection routing indication.
    Type: Grant
    Filed: June 17, 2020
    Date of Patent: December 26, 2023
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Haibo Wang, Shunwan Zhuang, Yuan Rao, Ruiqing Cao
  • Patent number: 11063874
    Abstract: A method, includes receiving a packet flow optimization policy including a flow identifier of a target packet flow, a device identifier of a to-be-adjusted forwarding device, and information about the next hop; obtaining status information of an access control list (ACL) of the to-be-adjusted forwarding device based on the device identifier, where the status information includes resource usage status information of the ACL and capability information that indicates whether the to-be-adjusted forwarding device supports packet flow forwarding that is based on the ACL; and when determining, based on the status information, that the ACL includes an idle resource and the to-be-adjusted forwarding device supports packet flow forwarding that is based on the ACL, sending an ACL record to the to-be-adjusted forwarding device, where the ACL record includes the flow identifier and the information about the next hop.
    Type: Grant
    Filed: July 23, 2019
    Date of Patent: July 13, 2021
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Nan Wu, Shunwan Zhuang, Jing Liu, Yuan Rao, Haibo Wang
  • Publication number: 20200389395
    Abstract: A data flow redirection method to overcome a disadvantage that a quantity of adjustable data flows is relatively small due to limited space of a flow specification forwarding table. The method includes receiving, by a network device, a control message sent by a control device, where the control message carries redirection routing information of a data flow and a redirection routing indication, the redirection routing indication instructing to convert the redirection routing information of the data flow into a forwarding entry in a target forwarding table, and tablespace of the target forwarding table is greater than tablespace of a flow specification forwarding table of the network device, and converting, by the network device, the redirection routing information of the data flow into the forwarding entry in the target forwarding table according to the redirection routing indication.
    Type: Application
    Filed: June 17, 2020
    Publication date: December 10, 2020
    Inventors: Haibo Wang, Shunwan Zhuang, Yuan Rao, Ruiqing Cao
  • Patent number: 10782717
    Abstract: A jitter compensation circuit operates in a first conduction state responsive to a high-to low transition of data and a low-to-high transition of data. The circuit operates in a second conduction state when there is no transition of data. The circuit compensates charge to a voltage supply in the first conduction state, thereby reducing voltage drop caused by transition of data.
    Type: Grant
    Filed: October 18, 2019
    Date of Patent: September 22, 2020
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Jikai Chen, Yonghui Tang, Yuan Rao, Huanzhang Huang, Yanli Fan
  • Patent number: 10735041
    Abstract: A circuit includes a sensor configured to receive an input signal and to provide a sensor output signal in response to the received input signal. A plurality of mirror circuits are configured to receive the sensor output signal from the sensor and to generate mirror circuit output signals. The plurality of mirror circuits includes a first mirror circuit and at least a second mirror circuit. The first mirror circuit increases its respective mirror circuit output signal until its saturation value is reached. The second mirror circuit increases its respective mirror output signal if the sensor output signal is above a threshold value and until its saturation value is reached.
    Type: Grant
    Filed: June 19, 2019
    Date of Patent: August 4, 2020
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Jikai Chen, Yuan Rao, Yanli Fan
  • Patent number: 10715430
    Abstract: A data flow redirection method to overcome a disadvantage that a quantity of adjustable data flows is relatively small due to limited space of a flow specification forwarding table. The method includes receiving, by a network device, a control message sent by a control device, where the control message carries redirection routing information of a data flow and a redirection routing indication, the redirection routing indication instructing to convert the redirection routing information of the data flow into a forwarding entry in a target forwarding table, and tablespace of the target forwarding table is greater than tablespace of a flow specification forwarding table of the network device, and converting, by the network device, the redirection routing information of the data flow into the forwarding entry in the target forwarding table according to the redirection routing indication.
    Type: Grant
    Filed: November 19, 2018
    Date of Patent: July 14, 2020
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Haibo Wang, Shunwan Zhuang, Yuan Rao, Ruiqing Cao
  • Publication number: 20190349307
    Abstract: A method, includes receiving a packet flow optimization policy including a flow identifier of a target packet flow, a device identifier of a to-be-adjusted forwarding device, and information about the next hop; obtaining status information of an access control list (ACL) of the to-be-adjusted forwarding device based on the device identifier, where the status information includes resource usage status information of the ACL and capability information that indicates whether the to-be-adjusted forwarding device supports packet flow forwarding that is based on the ACL; and when determining, based on the status information, that the ACL includes an idle resource and the to-be-adjusted forwarding device supports packet flow forwarding that is based on the ACL, sending an ACL record to the to-be-adjusted forwarding device, where the ACL record includes the flow identifier and the information about the next hop.
    Type: Application
    Filed: July 23, 2019
    Publication date: November 14, 2019
    Inventors: Nan Wu, Shunwan Zhuang, Jing Liu, Yuan Rao, Haibo Wang
  • Publication number: 20190305811
    Abstract: A circuit includes a sensor configured to receive an input signal and to provide a sensor output signal in response to the received input signal. A plurality of mirror circuits are configured to receive the sensor output signal from the sensor and to generate mirror circuit output signals. The plurality of mirror circuits includes a first mirror circuit and at least a second mirror circuit. The first mirror circuit increases its respective mirror circuit output signal until its saturation value is reached. The second mirror circuit increases its respective mirror output signal if the sensor output signal is above a threshold value and until its saturation value is reached.
    Type: Application
    Filed: June 19, 2019
    Publication date: October 3, 2019
    Inventors: Jikai Chen, Yuan Rao, Yanli Fan
  • Publication number: 20190253091
    Abstract: A circuit includes a sensor configured to receive an input signal and to provide a sensor output signal in response to the received input signal. A plurality of mirror circuits are configured to receive the sensor output signal from the sensor and to generate mirror circuit output signals. The plurality of mirror circuits includes a first mirror circuit and at least a second mirror circuit. The first mirror circuit increases its respective mirror circuit output signal until its saturation value is reached. The second mirror circuit increases its respective mirror output signal if the sensor output signal is above a threshold value and until its saturation value is reached.
    Type: Application
    Filed: February 13, 2018
    Publication date: August 15, 2019
    Inventors: Jikai Chen, Yuan Rao, Yanli Fan
  • Patent number: 10374647
    Abstract: A circuit includes a sensor configured to receive an input signal and to provide a sensor output signal in response to the received input signal. A plurality of mirror circuits are configured to receive the sensor output signal from the sensor and to generate mirror circuit output signals. The plurality of mirror circuits includes a first mirror circuit and at least a second mirror circuit. The first mirror circuit increases its respective mirror circuit output signal until its saturation value is reached. The second mirror circuit increases its respective mirror output signal if the sensor output signal is above a threshold value and until its saturation value is reached.
    Type: Grant
    Filed: February 13, 2018
    Date of Patent: August 6, 2019
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Jikai Chen, Yuan Rao, Yanli Fan
  • Publication number: 20190104060
    Abstract: A data flow redirection method to overcome a disadvantage that a quantity of adjustable data flows is relatively small due to limited space of a flow specification forwarding table. The method includes receiving, by a network device, a control message sent by a control device, where the control message carries redirection routing information of a data flow and a redirection routing indication, the redirection routing indication instructing to convert the redirection routing information of the data flow into a forwarding entry in a target forwarding table, and tablespace of the target forwarding table is greater than tablespace of a flow specification forwarding table of the network device, and converting, by the network device, the redirection routing information of the data flow into the forwarding entry in the target forwarding table according to the redirection routing indication.
    Type: Application
    Filed: November 19, 2018
    Publication date: April 4, 2019
    Inventors: Haibo Wang, Shunwan Zhuang, Yuan Rao, Ruiqing Cao
  • Patent number: 9467132
    Abstract: Embodiments of the invention relate to an input-powered comparator. Embodiments of the invention also pertain to an active diode that includes an input-powered comparator and a switch. In a specific embodiment, the input-powered comparator only consumes power when an input source provides sufficiently high voltage. Embodiments of the active diode can be used in an energy harvesting system. The comparator can be powered by the input and the system can be configured such that the comparator only consumes power when the input is ready to provide power to the load or energy storage element. In a specific embodiment, when there is no input, or the input is too low for harvesting, the comparator does not draw any power from the energy storage element (e.g., battery or capacitor) of the system.
    Type: Grant
    Filed: December 11, 2012
    Date of Patent: October 11, 2016
    Assignee: UNIVERSITY OF FLORIDA RESEARCH FOUNDATION, INC.
    Inventor: Yuan Rao
  • Patent number: 9461908
    Abstract: A method of route convergence, a routing device, and a main control board in the routing device are provided herein. The method includes receiving route information from multiple neighbor routing devices; selecting a route among the received route information, and applying the selected route to update an FIB of the main control board; and delivering the selected route to an interface board after confirming that the route information from the multiple neighbor routing devices is received and the route selection is completed.
    Type: Grant
    Filed: July 20, 2009
    Date of Patent: October 4, 2016
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Chang Wang, Yong Li, Hui Ni, Yuan Rao, Zhengliang Li, Lei Fan, Xiaohui Liu, Qing Zeng
  • Patent number: 8953461
    Abstract: A method, device, and system for processing Border Gateway Protocol (BGP) route are provided, which relate to the field of network communication technologies. The method includes: receiving a BGP route sent by a BGP neighbor; obtaining a route prefix of the BGP route according to the BGP route; determining, according to the route prefix, a BGP route storing and processing module corresponding to the route prefix; and sending the BGP route to the determined BGP route storing and processing module, so that the BGP route storing and processing module processes the received BGP route. A device and a system for processing BGP route are also provided. Therefore, the processing efficiency of the BGP route is improved, and the high extensibility is realized.
    Type: Grant
    Filed: June 17, 2011
    Date of Patent: February 10, 2015
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Lixin Zhang, Shuanglong Chen, Yuan Rao, Lei Fan, Boyan Tu, Jianwen Liu, Jianbin Xu, Qing Zeng
  • Publication number: 20140347902
    Abstract: Embodiments of the subject invention relate to a method and apparatus for providing a low-power AC/DC converter designed to operate with very low input voltage amplitudes. Specific embodiments can operate with input voltages less than or equal to 1 V, less than or equal to 200 mV, and as low as 20 mV, respectively. Embodiments of the subject low-power AC/DC converter can be utilized in magnetic induction energy harvester systems. With reference to a specific embodiment, a maximum efficiency of 92% was achieved for a 1 V input, and efficiencies exceeding 70% were achieved for a 200 mV input. A specific embodiment functioned properly when connected to a magnetic energy harvester device operating below 200 mV input.
    Type: Application
    Filed: June 2, 2014
    Publication date: November 27, 2014
    Inventors: Shuo Cheng, Yuan Rao
  • Patent number: 8743577
    Abstract: Embodiments of the subject invention relate to a method and apparatus for providing a low-power AC/DC converter designed to operate with very low input voltage amplitudes. Specific embodiments can operate with input voltages less than or equal to 1 V, less than or equal to 200 mV, and as low as 20 mV, respectively. Embodiments of the subject low-power AC/DC converter can be utilized in magnetic induction energy harvester systems. With reference to a specific embodiment, a maximum efficiency of 92% was achieved for a 1 V input, and efficiencies exceeding 70% were achieved for a 200 mV input. A specific embodiment functioned properly when connected to a magnetic energy harvester device operating below 200 mV input.
    Type: Grant
    Filed: November 19, 2010
    Date of Patent: June 3, 2014
    Assignee: University of Florida Research Foundation, Inc.
    Inventors: Shuo Cheng, Yuan Rao
  • Patent number: 8354871
    Abstract: Embodiments of the invention relate to an input-powered comparator. Embodiments of the invention also pertain to an active diode that includes an input-powered comparator and a switch. In a specific embodiment, the input-powered comparator only consumes power when an input source provides sufficiently high voltage. Embodiments of the active diode can be used in an energy harvesting system. The comparator can be powered by the input and the system can be configured such that the comparator only consumes power when the input is ready to provide power to the load or energy storage element. In a specific embodiment, when there is no input, or the input is too low for harvesting, the comparator does not draw any power from the energy storage element (e.g., battery or capacitor) of the system.
    Type: Grant
    Filed: November 9, 2010
    Date of Patent: January 15, 2013
    Assignee: University of Florida Research Foundation, Inc.
    Inventor: Yuan Rao
  • Patent number: 8279881
    Abstract: A method for route updating includes: a. determining more than one route in accordance with a predetermined preset mechanism and sending the determined more than one route to a client and/or a non-client, by a reflector in a route advertisement, and saving more than one route reaching the same destination address by the client and/or the non-client; and b. sending to the client and/or the non-client a message carrying information on the next hop of the route to be withdrawn, by the reflector in a withdrawal of a route and withdrawing the corresponding route for route updating in accordance with the information on the next hop carried in the message, by the client/the non-client. A system for route updating and a router reflector is also provided.
    Type: Grant
    Filed: January 4, 2008
    Date of Patent: October 2, 2012
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Renhai Zhang, Hui Ni, Yuan Rao
  • Patent number: 8189311
    Abstract: A method of circuit breaker control includes determining if a trip event for a circuit breaker has occurred, determining a set of redundancy parameters for the circuit breaker, and transmitting a trip signal and a shunt trip signal to the circuit breaker based on the set of redundancy parameters.
    Type: Grant
    Filed: November 30, 2009
    Date of Patent: May 29, 2012
    Assignee: General Electric Company
    Inventors: Thomas Frederick Papallo, Jr., Theodore Drummond Hill, III, Radoslaw Narel, Joseph Yuan Rao
  • Publication number: 20110242991
    Abstract: A method, device, and system for processing Border Gateway Protocol (BGP) route are provided, which relate to the field of network communication technologies. The method includes: receiving a BGP route sent by a BGP neighbor; obtaining a route prefix of the BGP route according to the BGP route; determining, according to the route prefix, a BGP route storing and processing module corresponding to the route prefix; and sending the BGP route to the determined BGP route storing and processing module, so that the BGP route storing and processing module processes the received BGP route. A device and a system for processing BGP route are also provided. Therefore, the processing efficiency of the BGP route is improved, and the high extensibility is realized.
    Type: Application
    Filed: June 17, 2011
    Publication date: October 6, 2011
    Inventors: Lixin ZHANG, Shuanglong Chen, Yuan Rao, Lei Fan, Boyan Tu, Jianwen Liu, Jianbin Xu, Qing Zeng