Patents by Inventor Rongqing ZHANG

Rongqing ZHANG 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).

  • Timing synchronization in an orthogonal frequency-division multiplexing (OFDM) system
    Patent number: 9491025
    Abstract: A transmitting end of an Orthogonal Frequency-Division Multiplexing (OFDM) wireless communication system may generate a training sequence and attach the training sequence to a data sequence that contains information data. A receiving end of the OFDM wireless communication system may identify a starting position of the data sequence and further extract the data sequence.
    Type: Grant
    Filed: July 25, 2013
    Date of Patent: November 8, 2016
    Assignee: EMPIRE TECHNOLOGY DEVELOPMENT LLC
    Inventors: Xiang Cheng, Rongqing Zhang
  • TIMING SYNCHRONIZATION IN AN ORTHOGONAL FREQUENCY-DIVISION MULTIPLEXING (OFDM) SYSTEM
    Publication number: 20160056988
    Abstract: A transmitting end of an OFDM wireless communication system may generate a training sequence and attach the training sequence to a data sequence that contains information data. A receiving end of the OFDM wireless communication system may identify a starting position of the data sequence and further extract the data sequence.
    Type: Application
    Filed: July 25, 2013
    Publication date: February 25, 2016
    Inventors: Xiang CHENG, Rongqing ZHANG
  • Stand for mobile phone
    Patent number: D907026
    Type: Grant
    Filed: September 6, 2019
    Date of Patent: January 5, 2021
    Inventor: Rongqing Zhang
  • Stand for mobile phone
    Patent number: D936644
    Type: Grant
    Filed: September 1, 2019
    Date of Patent: November 23, 2021
    Inventor: Rongqing Zhang