Patents by Inventor Nanjian Qian

Nanjian Qian 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).

  • Publication number: 20210274444
    Abstract: A method of and system for conserving power of a battery in a battery-powered electronic device are disclosed. The electronic device, which can be a digital camera, is wirelessly communicable with one or more access points over a wireless local area network. The electronic device is also wirelessly communicable over a plurality of frequency channels in one or more frequency bands. The method of conserving power relates to an improved roaming process. Also disclosed are an electronic device and a system for performing the method.
    Type: Application
    Filed: March 1, 2021
    Publication date: September 2, 2021
    Inventors: Chris McGill, Nanjian Qian
  • Patent number: 10651938
    Abstract: Methods and apparatus for providing enhanced optical networking service and performance which are particularly advantageous in terms of low cost and use of existing infrastructure, access control techniques, and components. In the exemplary embodiment, current widespread deployment and associated low cost of Ethernet-based systems are leveraged through use of an Ethernet CSMA/CD MAC in the optical domain on a passive optical network (PON) system. Additionally, local networking services are optionally provided to the network units on the PON since each local receiver can receive signals from all other users. An improved symmetric coupler arrangement provides the foregoing functionality at low cost. The improved system architecture also allows for fiber failure protection which is readily implemented at low cost and with minimal modification.
    Type: Grant
    Filed: December 3, 2018
    Date of Patent: May 12, 2020
    Assignee: TIME WARNER CABLE ENTERPRISES LLC
    Inventors: Jun Xu, Nanjian Qian
  • Publication number: 20190181953
    Abstract: Methods and apparatus for providing enhanced optical networking service and performance which are particularly advantageous in terms of low cost and use of existing infrastructure, access control techniques, and components. In the exemplary embodiment, current widespread deployment and associated low cost of Ethernet-based systems are leveraged through use of an Ethernet CSMA/CD MAC in the optical domain on a passive optical network (PON) system. Additionally, local networking services are optionally provided to the network units on the PON since each local receiver can receive signals from all other users. An improved symmetric coupler arrangement provides the foregoing functionality at low cost. The improved system architecture also allows for fiber failure protection which is readily implemented at low cost and with minimal modification.
    Type: Application
    Filed: December 3, 2018
    Publication date: June 13, 2019
    Inventors: Jun Xu, Nanjian Qian
  • Patent number: 10148358
    Abstract: Methods and apparatus for providing enhanced optical networking service and performance which are particularly advantageous in terms of low cost and use of existing infrastructure, access control techniques, and components. In the exemplary embodiment, current widespread deployment and associated low cost of Ethernet-based systems are leveraged through use of an Ethernet CSMA/CD MAC in the optical domain on a passive optical network (PON) system. Additionally, local networking services are optionally provided to the network units on the PON since each local receiver can receive signals from all other users. An improved symmetric coupler arrangement provides the foregoing functionality at low cost. The improved system architecture also allows for fiber failure protection which is readily implemented at low cost and with minimal modification.
    Type: Grant
    Filed: August 28, 2017
    Date of Patent: December 4, 2018
    Assignee: TIME WARNER CABLE ENTERPRISES LLC
    Inventors: Jun Xu, Nanjian Qian
  • Publication number: 20180013492
    Abstract: Methods and apparatus for providing enhanced optical networking service and performance which are particularly advantageous in terms of low cost and use of existing infrastructure, access control techniques, and components. In the exemplary embodiment, current widespread deployment and associated low cost of Ethernet-based systems are leveraged through use of an Ethernet CSMA/CD MAC in the optical domain on a passive optical network (PON) system. Additionally, local networking services are optionally provided to the network units on the PON since each local receiver can receive signals from all other users. An improved symmetric coupler arrangement provides the foregoing functionality at low cost. The improved system architecture also allows for fiber failure protection which is readily implemented at low cost and with minimal modification.
    Type: Application
    Filed: August 28, 2017
    Publication date: January 11, 2018
    Inventors: Jun Xu, Nanjian Qian
  • Patent number: 9749052
    Abstract: Methods and apparatus for providing enhanced optical networking service and performance which are particularly advantageous in terms of low cost and use of existing infrastructure, access control techniques, and components. In the exemplary embodiment, current widespread deployment and associated low cost of Ethernet-based systems are leveraged through use of an Ethernet CSMA/CD MAC in the optical domain on a passive optical network (PON) system. Additionally, local networking services are optionally provided to the network units on the PON since each local receiver can receive signals from all other users. An improved symmetric coupler arrangement provides the foregoing functionality at low cost. The improved system architecture also allows for fiber failure protection which is readily implemented at low cost and with minimal modification.
    Type: Grant
    Filed: August 12, 2014
    Date of Patent: August 29, 2017
    Assignee: Time Warner Cable Enterprises LLC
    Inventors: Jun Xu, Nanjian Qian
  • Publication number: 20150043913
    Abstract: Methods and apparatus for providing enhanced optical networking service and performance which are particularly advantageous in terms of low cost and use of existing infrastructure, access control techniques, and components. In the exemplary embodiment, current widespread deployment and associated low cost of Ethernet-based systems are leveraged through use of an Ethernet CSMA/CD MAC in the optical domain on a passive optical network (PON) system. Additionally, local networking services are optionally provided to the network units on the PON since each local receiver can receive signals from all other users. An improved symmetric coupler arrangement provides the foregoing functionality at low cost. The improved system architecture also allows for fiber failure protection which is readily implemented at low cost and with minimal modification.
    Type: Application
    Filed: August 12, 2014
    Publication date: February 12, 2015
    Inventors: Jun Xu, Nanjian Qian
  • Patent number: 8861958
    Abstract: Methods and apparatus for providing enhanced optical networking service and performance which are particularly advantageous in terms of low cost and use of existing infrastructure, access control techniques, and components. In the exemplary embodiment, current widespread deployment and associated low cost of Ethernet-based systems are leveraged through use of an Ethernet CSMA/CD MAC in the optical domain on a passive optical network (PON) system. Additionally, local networking services are optionally provided to the network units on the PON since each local receiver can receive signals from all other users. An improved symmetric coupler arrangement provides the foregoing functionality at low cost. The improved system architecture also allows for fiber failure protection which is readily implemented at low cost and with minimal modification.
    Type: Grant
    Filed: February 15, 2007
    Date of Patent: October 14, 2014
    Assignee: Time Warner Cable Enterprises LLC
    Inventors: Jun Xu, Nanjian Qian
  • Patent number: 8842989
    Abstract: Methods and apparatus for providing enhanced optical networking service and performance which are particularly advantageous in terms of low cost and use of existing infrastructure, access control techniques, and components. In the exemplary embodiment, current widespread deployment and associated low cost of Ethernet-based systems are leveraged through use of an Ethernet CSMA/CD MAC in the optical domain on a passive optical network (PON) system. Additionally, local networking services are optionally provided to the network units on the PON since each local receiver can receive signals from all other users. An improved symmetric coupler arrangement provides the foregoing functionality at low cost. The improved system architecture also allows for fiber failure protection which is readily implemented at low cost and with minimal modification.
    Type: Grant
    Filed: June 24, 2009
    Date of Patent: September 23, 2014
    Assignee: Time Warner Cable Enterprises LLC
    Inventors: Jun Xu, Nanjian Qian
  • Patent number: 8712241
    Abstract: Methods and apparatus for providing enhanced optical networking service and performance which are particularly advantageous in terms of low cost and use of existing infrastructure, access control techniques, and components. In the exemplary embodiment, current widespread deployment and associated low cost of Ethernet-based systems are leveraged through use of an Ethernet CSMA/CD MAC in the optical domain on a passive optical network (PON) system. Additionally, local networking services are optionally provided to the network units on the PON since each local receiver can receive signals from all other users. An improved symmetric coupler arrangement provides the foregoing functionality at low cost. The improved system architecture also allows for fiber failure protection which is readily implemented at low cost and with minimal modification.
    Type: Grant
    Filed: June 24, 2009
    Date of Patent: April 29, 2014
    Assignee: Time Warner Cable Enterprises LLC
    Inventors: Jun Xu, Nanjian Qian
  • Patent number: 8311010
    Abstract: Techniques and system designs are described for providing mobile communication systems with negotiation mechanisms to select data integrity schemes based on quality of service (QoS) schemes to enhance system performance during mobile handover processes. In one aspect, a method for providing data integrity in a wireless communication network includes providing a quality of service (QoS) profile for a service flow for a mobile station to include information of one or more QoS requirements of the service flow and a data integrity indicator to indicate information of data integrity for the service flow during a handover of the mobile station from one base station to another base station; and using the data integrity indicator to assist selection of a data integrity scheme from one or more data integrity schemes available to the service flow during the handover of the mobile station.
    Type: Grant
    Filed: October 10, 2007
    Date of Patent: November 13, 2012
    Assignee: ZTE (USA) Inc.
    Inventors: Nanjian Qian, Hua Mary Chion, Cancan Huang
  • Patent number: 8254382
    Abstract: Wireless communication systems and methods based on network-based IP mobility that use an anchor point location preference indicator in the Network Access Identifier (NAI) used during network entry process in a wireless network to provide an indication of a preference for a mobile subscriber station to obtain an IP address; and operate the wireless network based on Proxy Mobil IP to support the preference in the point location preference indicator in the NAI.
    Type: Grant
    Filed: September 24, 2008
    Date of Patent: August 28, 2012
    Assignee: ZTE (USA) Inc.
    Inventors: Yingzhe Wu, Nanjian Qian
  • Publication number: 20090300726
    Abstract: Described herein are methods and systems for negotiating and authorizing one or more Ethernet and/or IP services among a plurality of network entities in a wireless communication system. In one embodiment, an Access Service Network Entity transmits Ethernet Service capability data to a Home Connectivity Service Entity. Optionally, the Ethernet Service capability data may include Ethernet Service capability data associated with a Visited Connectivity Service Entity. The Home Connectivity Service Entity then determines which Ethernet and/or IP Services are authorized for a particular mobile station associated with the Access Service Network Entity based upon the received Ethernet Service capability data, a subscriber profile, and a home network policy.
    Type: Application
    Filed: May 29, 2009
    Publication date: December 3, 2009
    Applicant: ZTE (USA), INC.
    Inventors: Nanjian QIAN, Cancan HUANG, Yingzhe WU
  • Publication number: 20090290872
    Abstract: Methods and apparatus for providing enhanced optical networking service and performance which are particularly advantageous in terms of low cost and use of existing infrastructure, access control techniques, and components. In the exemplary embodiment, current widespread deployment and associated low cost of Ethernet-based systems are leveraged through use of an Ethernet CSMA/CD MAC in the optical domain on a passive optical network (PON) system. Additionally, local networking services are optionally provided to the network units on the PON since each local receiver can receive signals from all other users. An improved symmetric coupler arrangement provides the foregoing functionality at low cost. The improved system architecture also allows for fiber failure protection which is readily implemented at low cost and with minimal modification.
    Type: Application
    Filed: June 24, 2009
    Publication date: November 26, 2009
    Inventors: Jun Xu, Nanjian Qian
  • Publication number: 20090290875
    Abstract: Methods and apparatus for providing enhanced optical networking service and performance which are particularly advantageous in terms of low cost and use of existing infrastructure, access control techniques, and components. In the exemplary embodiment, current widespread deployment and associated low cost of Ethernet-based systems are leveraged through use of an Ethernet CSMA/CD MAC in the optical domain on a passive optical network (PON) system. Additionally, local networking services are optionally provided to the network units on the PON since each local receiver can receive signals from all other users. An improved symmetric coupler arrangement provides the foregoing functionality at low cost. The improved system architecture also allows for fiber failure protection which is readily implemented at low cost and with minimal modification.
    Type: Application
    Filed: June 24, 2009
    Publication date: November 26, 2009
    Inventors: Jun Xu, Nanjian Qian
  • Publication number: 20090150976
    Abstract: A method and system for negotiating and authorizing one or more IP services among a plurality of network entities in a wireless communication system is disclosed. In one embodiment, a system includes a transceiver module configured to receive one or more parameters of an access service network at a home connectivity service network of a mobile station. In addition, the one or more parameters of the access service network may be received at a visited connectivity service network, which transmits the one or more parameters of the access service network and one or more parameters of the visited connectivity service network to the home connectivity service network. This system further includes a home server unit authorizing one or more IP services, and transmitting network configuration information related to the authorized one or more IP services to the access service network.
    Type: Application
    Filed: December 3, 2008
    Publication date: June 11, 2009
    Inventors: Nanjian QIAN, Yingzhe WU
  • Publication number: 20080253342
    Abstract: Examples and implementations of techniques for providing an efficient and flexible convergence sublayer service enablement strategy in establishing the initial service flows and pre-provision service flows during the initial Mobile Subscriber (MS) Terminal network entry time (i.e. attachment to the WiMAX access network).
    Type: Application
    Filed: April 10, 2008
    Publication date: October 16, 2008
    Inventors: Tricci So, Nanjian Qian, Cancan Huang
  • Publication number: 20070274717
    Abstract: Methods and apparatus for providing enhanced optical networking service and performance which are particularly advantageous in terms of low cost and use of existing infrastructure, access control techniques, and components. In the exemplary embodiment, current widespread deployment and associated low cost of Ethernet-based systems are leveraged through use of an Ethernet CSMA/CD MAC in the optical domain on a passive optical network (PON) system. Additionally, local networking services are optionally provided to the network units on the PON since each local receiver can receive signals from all other users. An improved symmetric coupler arrangement provides the foregoing functionality at low cost. The improved system architecture also allows for fiber failure protection which is readily implemented at low cost and with minimal modification.
    Type: Application
    Filed: February 15, 2007
    Publication date: November 29, 2007
    Inventors: Jun Xu, Nanjian Qian
  • Patent number: 7181142
    Abstract: Methods and apparatus for providing enhanced optical networking service and performance which are particularly advantageous in terms of low cost and use of existing infrastructure, access control techniques, and components. In the exemplary embodiment, current widespread deployment and associated low cost of Ethernet-based systems are leveraged through use of an Ethernet CSMA/CD MAC in the optical domain on a passive optical network (PON) system. Additionally, local networking services are optionally provided to the network units on the PON since each local receiver can receive signals from all other users. An improved symmetric coupler arrangement provides the foregoing functionality at low cost. The improved system architecture also allows for fiber failure protection which is readily implemented at low cost and with minimal modification.
    Type: Grant
    Filed: April 9, 2002
    Date of Patent: February 20, 2007
    Assignee: Time Warner Cable Inc.
    Inventors: Jun Xu, Nanjian Qian