Patents by Inventor Wenwen Dong

Wenwen Dong 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: 9479353
    Abstract: Techniques are generally directed to selective reestablishment of Internet Protocol (IP) connectivity between a cable modem and a cable modem termination system (CMTS). IP connectivity between the cable modem and the CMTS is initially established through execution of a plurality of connectivity steps. After IP connectivity is lost, the cable modem determines which of the plurality of connectivity steps are desired for use in reestablishing IP connectivity, and sends a message to the CMTS indicating the desired IP connectivity step. The CMTS determines if the desired connectivity steps identified in the message may be used to reestablish IP connectivity, and sends a response message to the cable modem indicating if the desired connectivity steps may be used. IP connectivity is then reestablished using at least the desired connectivity steps.
    Type: Grant
    Filed: October 13, 2011
    Date of Patent: October 25, 2016
    Assignee: Cisco Technology, Inc.
    Inventors: Jie Meng, Wenwen Dong, Shuzhan Chen, Rundong Huang
  • Patent number: 9237116
    Abstract: One embodiment of the invention includes a coax media converter (CMC) system communicatively coupled to at least one modem in a network system. The system includes a frequency reference configured to generate a clock signal in a local time domain. The system also includes a scheduling processor configured to extract a bandwidth allocation message from a data stream and to re-stamp each of at least one timestamp in the bandwidth allocation message in the local time domain based on the clock signal to generate a corresponding updated bandwidth allocation message comprising a respective at least one re-stamped timestamp. The system further includes a downstream physical interface configured to transmit the updated bandwidth allocation message to the at least one modem to schedule upstream burst transmissions from the respective at least modem based on the at least one re-stamped timestamp.
    Type: Grant
    Filed: September 12, 2013
    Date of Patent: January 12, 2016
    Assignee: Cisco Technology, Inc.
    Inventors: Xuan Wang, Jingfeng Zhang, Jie Meng, Wenwen Dong, De Fu Li, Yong Lu
  • Publication number: 20150071305
    Abstract: One embodiment of the invention includes a coax media converter (CMC) system communicatively coupled to at least one modem in a network system. The system includes a frequency reference configured to generate a clock signal in a local time domain. The system also includes a scheduling processor configured to extract a bandwidth allocation message from a data stream and to re-stamp each of at least one timestamp in the bandwidth allocation message in the local time domain based on the clock signal to generate a corresponding updated bandwidth allocation message comprising a respective at least one re-stamped timestamp. The system further includes a downstream physical interface configured to transmit the updated bandwidth allocation message to the at least one modem to schedule upstream burst transmissions from the respective at least modem based on the at least one re-stamped timestamp.
    Type: Application
    Filed: September 12, 2013
    Publication date: March 12, 2015
    Applicant: CISCO TECHNOLOGY, INC.
    Inventors: XUAN WANG, JINGFENG ZHANG, JIE MENG, WENWEN DONG, DE FU LI, YONG LU
  • Publication number: 20130097324
    Abstract: Techniques are generally directed to selective reestablishment of Internet Protocol (IP) connectivity between a cable modem and a cable modem termination system (CMTS). IP connectivity between the cable modem and the CMTS is initially established through execution of a plurality of connectivity steps. After IP connectivity is lost, the cable modem determines which of the plurality of connectivity steps are desired for use in reestablishing IP connectivity, and sends a message to the CMTS indicating the desired IP connectivity step. The CMTS determines if the desired connectivity steps identified in the message may be used to reestablish IP connectivity, and sends a response message to the cable modem indicating if the desired connectivity steps may be used. IP connectivity is then reestablished using at least the desired connectivity steps.
    Type: Application
    Filed: October 13, 2011
    Publication date: April 18, 2013
    Applicant: CISCO TECHNOLOGY, INC.
    Inventors: Jie Meng, Wenwen Dong, Shuzhan Chen, Rundong Huang
  • Patent number: 7751712
    Abstract: A Passive Optical Network includes: an Optical Line Terminal, an Optical Distribution Network, and an Optical Network Unit or an Optical Network Terminal, wherein the Optical Line Terminal is adapted to exchange data with the Optical Network Unit or the Optical Network Terminal by using an optical module via the Optical Distribution Network, and the optical module is an optical module sending data in a continuous mode. Further, a method for data communication based on the Passive Optical Network includes: sending data by using an optical module sending data in a continuous mode; receiving the data by an optical module based on a set optical power threshold of data “0” and a set optical power threshold of data “1”.
    Type: Grant
    Filed: June 12, 2007
    Date of Patent: July 6, 2010
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Jun Zhao, Jiang Feng, Nanling Li, Peilong Tan, Yu Liu, Chuanhai Huang, Wensheng Wu, Guangxiang Yang, Yong He, Wenwen Dong
  • Publication number: 20070292132
    Abstract: A Passive Optical Network includes: an Optical Line Terminal, an Optical Distribution Network, and an Optical Network Unit or an Optical Network Terminal, wherein the Optical Line Terminal is adapted to exchange data with the Optical Network Unit or the Optical Network Terminal by using an optical module via the Optical Distribution Network, and the optical module is an optical module sending data in a continuous mode. Further, a method for data communication based on the Passive Optical Network includes: sending data by using an optical module sending data in a continuous mode; receiving the data by an optical module based on a set optical power threshold of data “0” and a set optical power threshold of data “1”.
    Type: Application
    Filed: June 12, 2007
    Publication date: December 20, 2007
    Inventors: Jun Zhao, Jiang Feng, Nanling Li, Peilong Tan, Yu Liu, Chuanhai Huang, Wensheng Wu, Guangxiang Yang, Yong He, Wenwen Dong
  • Patent number: D951544
    Type: Grant
    Filed: March 7, 2021
    Date of Patent: May 10, 2022
    Inventor: Wenwen Dong
  • Patent number: D951545
    Type: Grant
    Filed: March 7, 2021
    Date of Patent: May 10, 2022
    Inventor: Wenwen Dong
  • Patent number: D958459
    Type: Grant
    Filed: March 7, 2021
    Date of Patent: July 19, 2022
    Inventor: Wenwen Dong