Patents by Inventor Hai Vu

Hai Vu 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: 10764141
    Abstract: The disclosed technology relates to a network agent for reporting to a network policy system. A network agent includes an agent enforcer and an agent controller. The agent enforcer is configured to implementing network policies on the system, access data associated with the implementation of the network policies on the system, and transmit, via an interprocess communication, the data to the agent controller. The agent controller is configured to generate a report including the data and transmit the report to a network policy system.
    Type: Grant
    Filed: March 27, 2017
    Date of Patent: September 1, 2020
    Assignee: CISCO TECHNOLOGY, INC.
    Inventors: Hai Vu, Shih-Chun Chang, Varun Malhotra, Shashi Gandham, Navindra Yadav, Allen Chen, Praneeth Vallem, Rohit Prasad
  • Publication number: 20200145291
    Abstract: The disclosed technology relates to a network agent for generating platform specific network policies. A network agent is configured to receive a platform independent network policy from a network policy system, determine implementation characteristics of the network entity, generate platform specific policies from the platform independent network policy based on the implementation characteristics of the network entity, and implement the platform specific policies on the network entity.
    Type: Application
    Filed: December 30, 2019
    Publication date: May 7, 2020
    Inventors: Rohit Prasad, Hai Vu, Shih-Chun Chang, Hoang Nguyen, Shashi Gandham, Navindra Yadav, Praneeth Vallem, Sunil Gupta, Ravi Prasad, Varun Malhotra
  • Publication number: 20200136443
    Abstract: A motor includes a motor body, a first cover covering at least one part of the motor body on the radial outer side of the motor body, and a second cover covering at least one part of the motor body on one axial side and the radial outer side of the motor body. The first and second covers make contact on the radial outer side of the motor body. The second cover includes first and second parts, the first part is in a disk shape, the second part is located on the radial outer side of at least one part of the first part and includes a wall part and an eave part, the wall part is formed in the axial direction, and the eave part is formed in the radial direction from one axial end of the radial outer side of the wall part.
    Type: Application
    Filed: October 16, 2019
    Publication date: April 30, 2020
    Applicant: NIDEC CORPORATION
    Inventors: Ha Hai VU, Chien Yu CHEN
  • Publication number: 20200088290
    Abstract: A deceleration device includes a reduction assembly that reduces speed, a motor attached to the reduction assembly, the motor being rotatable about a central axis line, and a heat insulator having a heat conduction coefficient of about 0.04 W/mK or less, the heat insulator being positioned between the motor and the reduction assembly. A surface temperature of an exposed portion of the motor is maintained at a low level, with a simple structure, that prevents burns to human skin in contact with the motor.
    Type: Application
    Filed: August 15, 2019
    Publication date: March 19, 2020
    Inventors: Ha Hai VU, Chien Yu CHEN
  • Patent number: 10574575
    Abstract: Systems, methods, and computer-readable media for flow stitching network traffic flow segments at a middlebox in a network environment. In some embodiments, a method can include collecting flow records of traffic flow segments at a middlebox in a network environment including one or more transaction identifiers assigned to the traffic flow segments. The traffic flow segments can correspond to one or more traffic flows passing through the middlebox and flow directions of the traffic flow segments with respect to the middlebox can be identified using the flow records. The traffic flow segments can be stitched together based on the one or more transaction identifiers and the flow directions of the traffic flow segments to form a stitched traffic flow of the one or more traffic flows passing through the middlebox. The stitched traffic flow can be incorporated as part of network traffic data for the network environment.
    Type: Grant
    Filed: April 30, 2018
    Date of Patent: February 25, 2020
    Assignee: CISCO TECHNOLOGY, INC.
    Inventors: Supreeth Rao, Navindra Yadav, Umamaheswaran Arumugam, Micheal Watts, Shashi Gandham, Prasannakumar Jobigenahally Malleshaiah, Duy Nguyen, Hai Vu, Tapan Shrikrishna Patwardhan, Aiyesha Ma, Xuan Zou, Jothi Prakash Prabakaran
  • Patent number: 10523512
    Abstract: The disclosed technology relates to a network agent for generating platform specific network policies. A network agent is configured to receive a platform independent network policy from a network policy system, determine implementation characteristics of the network entity, generate platform specific policies from the platform independent network policy based on the implementation characteristics of the network entity, and implement the platform specific policies on the network entity.
    Type: Grant
    Filed: March 24, 2017
    Date of Patent: December 31, 2019
    Assignee: CISCO TECHNOLOGY, INC.
    Inventors: Rohit Prasad, Hai Vu, Shih-Chun Chang, Hoang Nguyen, Shashi Gandham, Navindra Yadav, Praneeth Vallem, Sunil Gupta, Ravi Prasad, Varun Malhotra
  • Publication number: 20190238633
    Abstract: Aspects of the disclosed technology provide methods for automatically tuning load-balancer configurations in a network environment. In some implementations, a process of the disclosed technology includes steps for collecting flow records of traffic flow segments at a middle box in a network environment, the traffic flow segments corresponding to one or more traffic flows passing through the middle box, analyzing the flow records to identify one or more traffic patterns in the network environment, and automatically updating a load balancer configuration based on the one or more traffic patterns, wherein updating the load balancer configuration improves at least one traffic flow parameter for at least one of the traffic flows passing through the middle box. Systems and machine-readable media are also provided.
    Type: Application
    Filed: June 29, 2018
    Publication date: August 1, 2019
    Inventors: Supreeth Rao, Navindra Yadav, Umamaheswaran Arumugam, Michael Watts, Shashi Gandham, Darshan Shrinath Purandare, Duy Nguyen, Hai Vu, Kai Zhu, Aiyesha Ma, Tapan Shrikrishna Patwardhan, Jothi Prakash Prabakaran
  • Publication number: 20190230041
    Abstract: Systems, methods, and computer-readable media for flow stitching network traffic flow segments across middleboxes. A method can include collecting flow records of traffic flow segments at a first middlebox and a second middlebox in a network environment including one or more transaction identifiers assigned to the traffic flow segments. Sources and destinations of the traffic flow segments can be identified with respect to the first middlebox and the second middlebox. Corresponding subsets of the traffic flow segments can be stitched together to from a first stitched traffic flow at the first middlebox and a second stitched traffic flow at the second middlebox. The first and second stitched traffic flows can be stitched together to form a cross-middlebox stitched traffic flow across the first middlebox and the second middlebox. The cross-middlebox stitched traffic flow can be incorporated as part of network traffic data for the network environment.
    Type: Application
    Filed: June 18, 2018
    Publication date: July 25, 2019
    Inventors: Supreeth Rao, Navindra Yadav, Umamaheswaran Arumugam, Michael Watts, Shashi Gandham, Duy Nguyen, Hai Vu, Prasannakumar Jobigenahally Malleshaiah, Aiyesha Ma, Kai Zhu, Darshan Shrinath Purandare, Jothi Prakash Prabakaran
  • Publication number: 20190230035
    Abstract: Systems, methods, and computer-readable media for flow stitching network traffic flow segments at a middlebox in a network environment. In some embodiments, a method can include collecting flow records of traffic flow segments at a middlebox in a network environment including one or more transaction identifiers assigned to the traffic flow segments. The traffic flow segments can correspond to one or more traffic flows passing through the middlebox and flow directions of the traffic flow segments with respect to the middlebox can be identified using the flow records. The traffic flow segments can be stitched together based on the one or more transaction identifiers and the flow directions of the traffic flow segments to form a stitched traffic flow of the one or more traffic flows passing through the middlebox. The stitched traffic flow can be incorporated as part of network traffic data for the network environment.
    Type: Application
    Filed: April 30, 2018
    Publication date: July 25, 2019
    Inventors: Supreeth Rao, Navindra Yadav, Umamaheswaran Arumugam, Micheal Watts, Shashi Gandham, Prasannakumar Jobigenahally Malleshaiah, Duy Nguyen, Hai Vu, Tapan Shrikrishna Patwardhan, Aiyesha Ma, Xuan Zou, Jothi Prakash Prabakaran
  • Publication number: 20190229995
    Abstract: Systems, methods, and computer-readable media for flow stitching network traffic flow segments at a middlebox in a network environment. In some embodiments, flow records of traffic flow segments at a middlebox in a network environment are collected. The flow records can include transaction identifiers assigned to the traffic flow segments. Sources and destinations of the traffic flow segments with respect to the middlebox can be identified using the flow records. Further, the traffic flow segments can be stitched together to form a plurality of stitched traffic flows at the middlebox based on the transaction identifiers and the sources and destinations of the traffic flow segments in the network environment with respect to the middlebox. A configuration of the middlebox operating in the network environment can be identified based on the stitched traffic flows at the middlebox in the network environment.
    Type: Application
    Filed: May 21, 2018
    Publication date: July 25, 2019
    Inventors: Supreeth Rao, Navindra Yadav, Umamaheswaran Arumugam, Michael Watts, Shashi Gandham, Prasannakumar Jobigenahally Malleshaiah, Duy Nguyen, Hai Vu, Aiyesha Ma, Tapan Shrikrishna Patwardhan, Kai Zhu, Jothi Prakash Prabakaran
  • Patent number: 10250446
    Abstract: The disclosed technology relates to a distributed policy store. A system is configured to locate, in an index, an entry for a network entity, determine, based on the entry, a file identifier for a file containing a record for the network entity and an offset indicating a location of the record in the file. The system is further configured to locate the file in a distributed file system using the file identifier, locate the record in the file using the offset, and retrieve the record.
    Type: Grant
    Filed: March 27, 2017
    Date of Patent: April 2, 2019
    Assignee: Cisco Technology, Inc.
    Inventors: Rohit Prasad, Shashi Gandham, Hai Vu, Varun Malhotra, Sunil Gupta, Abhishek Singh, Navindra Yadav, Ali Parandehgheibi, Ravi Prasad, Praneeth Vallem, Paul Lesiak, Hoang Nguyen
  • Publication number: 20180287907
    Abstract: An application and network analytics platform can capture telemetry from servers and network devices operating within a network. The application and network analytics platform can determine an application dependency map (ADM) for an application executing in the network. Using the ADM, the application and network analytics platform can resolve flows into flowlets of various granularities, and determine baseline metrics for the flowlets. The baseline metrics can include transmission times, processing times, and/or data sizes for the flowlets. The application and network analytics platform can compare new flowlets against the baselines to assess availability, load, latency, and other performance metrics for the application. In some implementations, the application and network analytics platform can automate remediation of unavailability, load, latency, and other application performance issues.
    Type: Application
    Filed: March 28, 2017
    Publication date: October 4, 2018
    Inventors: Ashutosh Kulshreshtha, Omid Madani, Vimal Jeyakumar, Navindra Yadav, Ali Parandehgheibi, Andy Sloane, Kai Chang, Khawar Deen, Shih-Chun Chang, Hai Vu
  • Publication number: 20180278479
    Abstract: The disclosed technology relates to a network agent for reporting to a network policy system. A network agent includes an agent enforcer and an agent controller. The agent enforcer is configured to implementing network policies on the system, access data associated with the implementation of the network policies on the system, and transmit, via an interprocess communication, the data to the agent controller. The agent controller is configured to generate a report including the data and transmit the report to a network policy system.
    Type: Application
    Filed: March 27, 2017
    Publication date: September 27, 2018
    Inventors: Hai Vu, Shih-Chun Chang, Varun Malhotra, Shashi Gandham, Navindra Yadav, Allen Chen, Praneeth Vallem, Rohit Prasad
  • Publication number: 20180278481
    Abstract: The disclosed technology relates to a distributed policy store. A system is configured to locate, in an index, an entry for a network entity, determine, based on the entry, a file identifier for a file containing a record for the network entity and an offset indicating a location of the record in the file. The system is further configured to locate the file in a distributed file system using the file identifier, locate the record in the file using the offset, and retrieve the record.
    Type: Application
    Filed: March 27, 2017
    Publication date: September 27, 2018
    Inventors: Rohit Prasad, Shashi Gandham, Hai Vu, Varun Malhotra, Sunil Gupta, Abhishek Singh, Navindra Yadav, Ali Parandehgheibi, Ravi Prasad, Praneeth Vallem, Paul Lesiak, Hoang Nguyen
  • Publication number: 20180278459
    Abstract: The disclosed technology relates to assigning network agents to communication modules. A network policy system is configured to assign network agents to buckets based on an agent identifier of each agent. The network policy system can assign buckets to communication modules. When a failed communication module is detected, the network policy system can reassigning buckets assigned to the failed communication module to operational communication modules.
    Type: Application
    Filed: March 27, 2017
    Publication date: September 27, 2018
    Inventors: Rohit Prasad, Hai Vu, Shih-Chun Chang, Hoang Nguyen, Shashi Gandham, Navindra Yadav, Praneeth Vallem, Sunil Gupta, Ravi Prasad, Paul Lesiak
  • Publication number: 20180278478
    Abstract: The disclosed technology relates to a network agent for generating platform specific network policies. A network agent is configured to receive a platform independent network policy from a network policy system, determine implementation characteristics of the network entity, generate platform specific policies from the platform independent network policy based on the implementation characteristics of the network entity, and implement the platform specific policies on the network entity.
    Type: Application
    Filed: March 24, 2017
    Publication date: September 27, 2018
    Inventors: Rohit Prasad, Hai Vu, Shih-Chun Chang, Hoang Nguyen, Shashi Gandham, Navindra Yadav, Praneeth Vallem, Sunil Gupta, Ravi Prasad, Varun Malhotra
  • Publication number: 20140019361
    Abstract: A system and/or method of authenticating the identity of a user desiring to conduct a transaction using an electronic device.
    Type: Application
    Filed: July 12, 2013
    Publication date: January 16, 2014
    Inventors: Stephen Bering, Jacob Fournier, Danny Joe, John P. Kerher, Kenneth L. Lomax, Hai Vu Nguyen, Linda Remsberg, Tanvir Sidhu, Tania Stephens
  • Patent number: 8438309
    Abstract: A method that allows for rapid inter base station handoffs in IP based wireless networks is disclosed. More specifically a technique to address the problem of accurate location management during rapid handoff across multiple base stations is described in this invention disclosure. The idea proposed uses a combination of Timestamp and Sequence number along with a message exchange protocol over the network to maintain the registration with only a single base station at any point of time.
    Type: Grant
    Filed: October 12, 2011
    Date of Patent: May 7, 2013
    Assignee: xG Technology, Inc.
    Inventors: Hai Vu, Shih-Chun Chang, Sreekant Nair, Shashidhar R. Gandham
  • Patent number: 8223738
    Abstract: This disclosure describes a new Medium Access Control (MAC) protocol that combines contention-free and contention-based MAC protocols into a heterogeneous MAC protocol used for forwarding VoIP traffic in VoIP systems on wireless networks using multiple base stations which addresses the need to transport high bit-rate data to multiple users over wired and wireless means.
    Type: Grant
    Filed: March 3, 2009
    Date of Patent: July 17, 2012
    Assignee: XG Technology, Inc.
    Inventors: Shashidhar R. Gandham, Amit Shukla, Hai Vu
  • Publication number: 20120087342
    Abstract: A method that allows for rapid inter base station handoffs in IP based wireless networks is disclosed. More specifically a technique to address the problem of accurate location management during rapid handoff across multiple base stations is described in this invention disclosure. The idea proposed uses a combination of Timestamp and Sequence number along with a message exchange protocol over the network to maintain the registration with only a single base station at any point of time.
    Type: Application
    Filed: October 12, 2011
    Publication date: April 12, 2012
    Applicant: XG TECHNOLOGY, INC.
    Inventors: HAI VU, SHIH-CHUN CHANG, SREEKANT NAIR, SHASHIDAR R. GANDHAM