Patents by Inventor Donald C. Hjort

Donald C. Hjort 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: 11671503
    Abstract: A method for optimizing group communication services, the method including determining a current location and an assigned home server for one or more devices associated with each of a plurality of group members, determining whether the one or more devices of the plurality of group members has moved to a visiting location, wherein the visiting location is a location outside of locations associated with the assigned home server based on the current location and assigned home server for the one or more devices, and assigning a group control application server associated with the visiting location to the to the one or more devices to serve as the assigned home server.
    Type: Grant
    Filed: May 24, 2022
    Date of Patent: June 6, 2023
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Xiaoming Zhao, Jianrong Wang, Donald C. Hjort, Mark Wardell
  • Publication number: 20220286516
    Abstract: A method for optimizing group communication services, the method including determining a current location and an assigned home server for one or more devices associated with each of a plurality of group members, determining whether the one or more devices of the plurality of group members has moved to a visiting location, wherein the visiting location is a location outside of locations associated with the assigned home server based on the current location and assigned home server for the one or more devices, and assigning a group control application server associated with the visiting location to the to the one or more devices to serve as the assigned home server.
    Type: Application
    Filed: May 24, 2022
    Publication date: September 8, 2022
    Applicant: AT&T Intellectual Property I, L.P.
    Inventors: Xiaoming Zhao, Jianrong Wang, Donald C. Hjort, Mark Wardell
  • Patent number: 11375026
    Abstract: A method for optimizing group communication services, the method including determining a current location and an assigned home server for one or more devices associated with each of a plurality of group members, determining whether the one or more devices of the plurality of group members has moved to a visiting location, wherein the visiting location is a location outside of locations associated with the assigned home server based on the current location and assigned home server for the one or more devices, and assigning a group control application server associated with the visiting location to the to the one or more devices to serve as the assigned home server.
    Type: Grant
    Filed: October 6, 2020
    Date of Patent: June 28, 2022
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Xiaoming Zhao, Jianrong Wang, Donald C. Hjort, Mark Wardell
  • Publication number: 20210037104
    Abstract: A method for optimizing group communication services, the method including determining a current location and an assigned home server for one or more devices associated with each of a plurality of group members, determining whether the one or more devices of the plurality of group members has moved to a visiting location, wherein the visiting location is a location outside of locations associated with the assigned home server based on the current location and assigned home server for the one or more devices, and assigning a group control application server associated with the visiting location to the to the one or more devices to serve as the assigned home server.
    Type: Application
    Filed: October 6, 2020
    Publication date: February 4, 2021
    Inventors: Xiaoming Zhao, Jianrong Wang, Donald C. Hjort, Mark Wardell
  • Patent number: 10827002
    Abstract: A method for optimizing group communication services, the method comprising instantiating an adaptive homing tool as a virtual network function, the adaptive homing tool communicating with a centralized database in a multiple region telecommunications network; storing a user identification for plural group members in the database; when a service request is made by at least one group member that has moved outside of connectivity with a group home server, receiving group member location data for the plural group members in real time; assigning a group control application server to at least one group member when a group member initiates a service request; wherein the common service tool assigns the group application control server based on at least one of the priority data, group member location data, least network resources used, best path performance, shortest path performance, and quality of service.
    Type: Grant
    Filed: December 3, 2018
    Date of Patent: November 3, 2020
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Xiaoming Zhao, Jianrong Wang, Donald C. Hjort, Mark Wardell
  • Publication number: 20200177683
    Abstract: A method for optimizing group communication services, the method comprising instantiating an adaptive homing tool as a virtual network function, the adaptive homing tool communicating with a centralized database in a multiple region telecommunications network; storing a user identification for plural group members in the database; when a service request is made by at least one group member that has moved outside of connectivity with a group home server, receiving group member location data for the plural group members in real time; assigning a group control application server to at least one group member when a group member initiates a service request; wherein the common service tool assigns the group application control server based on at least one of the priority data, group member location data, least network resources used, best path performance, shortest path performance, and quality of service.
    Type: Application
    Filed: December 3, 2018
    Publication date: June 4, 2020
    Inventors: Xiaoming ZHAO, Jianrong WANG, Donald C. HJORT, Mark WARDELL
  • Patent number: 10588035
    Abstract: Coverage and usage-based limitations to a wireless communications network can be estimated by monitoring network performance during a periods in which the network is relatively busy and relatively non-busy. For example, differences in distributions of bit error rates for calls in such time periods can be used to assess whether network limitations are associated with reduced-coverage zones or are usage-based. Such estimates can be used to target specific network features that limit network performance.
    Type: Grant
    Filed: July 16, 2018
    Date of Patent: March 10, 2020
    Assignee: AT&T Mobility II LLC
    Inventors: Ming Zhang, Gaviphat Lekutai, Donald C. Hjort
  • Publication number: 20180324614
    Abstract: Coverage and usage-based limitations to a wireless communications network can be estimated by monitoring network performance during a periods in which the network is relatively busy and relatively non-busy. For example, differences in distributions of bit error rates for calls in such time periods can be used to assess whether network limitations are associated with reduced-coverage zones or are usage-based. Such estimates can be used to target specific network features that limit network performance.
    Type: Application
    Filed: July 16, 2018
    Publication date: November 8, 2018
    Inventors: Ming Zhang, Gaviphat Lekutai, Donald C. Hjort
  • Patent number: 10028159
    Abstract: Coverage and usage-based limitations to a wireless communications network can be estimated by monitoring network performance during a periods in which the network is relatively busy and relatively non-busy. For example, differences in distributions of bit error rates for calls in such time periods can be used to assess whether network limitations are associated with reduced-coverage zones or are usage-based. Such estimates can be used to target specific network features that limit network performance.
    Type: Grant
    Filed: August 21, 2017
    Date of Patent: July 17, 2018
    Assignee: AT&T Mobility II LLC
    Inventors: Ming Zhang, Gaviphat Lekutai, Donald C. Hjort
  • Publication number: 20170347282
    Abstract: Coverage and usage-based limitations to a wireless communications network can be estimated by monitoring network performance during a periods in which the network is relatively busy and relatively non-busy. For example, differences in distributions of bit error rates for calls in such time periods can be used to assess whether network limitations are associated with reduced-coverage zones or are usage-based. Such estimates can be used to target specific network features that limit network performance.
    Type: Application
    Filed: August 21, 2017
    Publication date: November 30, 2017
    Inventors: Ming Zhang, Gaviphat Lekutai, Donald C. Hjort
  • Patent number: 9743300
    Abstract: Coverage and usage-based limitations to a wireless communications network can be estimated by monitoring network performance during a periods in which the network is relatively busy and relatively non-busy. For example, differences in distributions of bit error rates for calls in such time periods can be used to assess whether network limitations are associated with reduced-coverage zones or are usage-based. Such estimates can be used to target specific network features that limit network performance.
    Type: Grant
    Filed: August 17, 2015
    Date of Patent: August 22, 2017
    Assignee: AT&T Mobility II LLC
    Inventors: Ming Zhang, Gaviphat Lekutai, Donald C. Hjort
  • Publication number: 20150365838
    Abstract: Coverage and usage-based limitations to a wireless communications network can be estimated by monitoring network performance during a periods in which the network is relatively busy and relatively non-busy. For example, differences in distributions of bit error rates for calls in such time periods can be used to assess whether network limitations are associated with reduced-coverage zones or are usage-based. Such estimates can be used to target specific network features that limit network performance.
    Type: Application
    Filed: August 17, 2015
    Publication date: December 17, 2015
    Inventors: Ming Zhang, Gaviphat Lekutai, Donald C. Hjort
  • Patent number: 9113362
    Abstract: Coverage and usage-based limitations to a wireless communications network can be estimated by monitoring network performance during a periods in which the network is relatively busy and relatively non-busy. For example, differences in distributions of bit error rates for calls in such time periods can be used to assess whether network limitations are associated with reduced-coverage zones or are usage-based. Such estimates can be used to target specific network features that limit network performance.
    Type: Grant
    Filed: December 12, 2006
    Date of Patent: August 18, 2015
    Assignee: AT&T Mobility II LLC
    Inventors: Ming Zhang, Gaviphat Lekutai, Donald C. Hjort
  • Patent number: 8767656
    Abstract: A SIP (session initiation protocol) service activation abstraction layer that provides a unified interface to upper layer applications for discovering, establishing, and managing the QoS connectivity. In one implementation, this is IP Multimedia Subsystem-centric, further supporting applications that utilize SIP for session control. This capability extends to the data card universe allowing UMTS data card vendors to establish concurrent QoS-based sessions using multiple primary PDP (packet data protocol) contexts based on a set of SIP triggers, further allowing applications running on a computing system to transparently utilize the established pipes based on the individual QoS requirements.
    Type: Grant
    Filed: June 4, 2012
    Date of Patent: July 1, 2014
    Assignee: AT&T Mobility II LLC
    Inventors: Wen-Ping Ying, Donald C. Hjort
  • Patent number: 8638688
    Abstract: Characteristics of an unknown application on the wireless network are compared with characteristics of previously classified wireless applications. When the characteristics of the unknown application match those of a previously classified application, the bandwidth requirement associated with the matching previously classified application is allocated to the unknown application by the wireless network.
    Type: Grant
    Filed: January 17, 2008
    Date of Patent: January 28, 2014
    Assignee: AT&T Mobility II LLC
    Inventors: Gaviphat Lekutai, Venson M. Shaw, Donald C. Hjort
  • Publication number: 20120246700
    Abstract: A SIP (session initiation protocol) service activation abstraction layer that provides a unified interface to upper layer applications for discovering, establishing, and managing the QoS connectivity. In one implementation, this is IP Multimedia Subsystem-centric, further supporting applications that utilize SIP for session control. This capability extends to the data card universe allowing UMTS data card vendors to establish concurrent QoS-based sessions using multiple primary PDP (packet data protocol) contexts based on a set of SIP triggers, further allowing applications running on a computing system to transparently utilize the established pipes based on the individual QoS requirements.
    Type: Application
    Filed: June 4, 2012
    Publication date: September 27, 2012
    Applicant: CINGULAR WIRELESS II, LLC
    Inventors: Wen-Ping Ying, Donald C. Hjort
  • Publication number: 20100017521
    Abstract: A SIP (session initiation protocol) service activation abstraction layer that provides a unified interface to upper layer applications for discovering, establishing, and managing the QoS connectivity. In one implementation, this is IP Multimedia Subsystem-centric, further supporting applications that utilize SIP for session control. This capability extends to the data card universe allowing UMTS data card vendors to establish concurrent QoS-based sessions using multiple primary PDP (packet data protocol) contexts based on a set of SIP triggers, further allowing applications running on a computing system to transparently utilize the established pipes based on the individual QoS requirements.
    Type: Application
    Filed: September 25, 2009
    Publication date: January 21, 2010
    Applicant: CINGULAR WIRELESS II, LLC
    Inventors: Wen-Ping Ying, Donald C. Hjort
  • Publication number: 20080240045
    Abstract: Characteristics of an unknown application on the wireless network are compared with characteristics of previously classified wireless applications. When the characteristics of the unknown application match those of a previously classified application, the bandwidth requirement associated with the matching previously classified application is allocated to the unknown application by the wireless network.
    Type: Application
    Filed: January 17, 2008
    Publication date: October 2, 2008
    Inventors: Gaviphat Lekutai, Venson M. Shaw, Donald C. Hjort
  • Publication number: 20080139196
    Abstract: Coverage and usage-based limitations to a wireless communications network can be estimated by monitoring network performance during a periods in which the network is relatively busy and relatively non-busy. For example, differences in distributions of bit error rates for calls in such time periods can be used to assess whether network limitations are associated with reduced-coverage zones or are usage-based. Such estimates can be used to target specific network features that limit network performance.
    Type: Application
    Filed: December 12, 2006
    Publication date: June 12, 2008
    Inventors: Ming Zhang, Gaviphat Lekutai, Donald C. Hjort