Patents by Inventor QUANG DAN CHU

QUANG DAN CHU 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: 20250212233
    Abstract: A system for effectively determining the motion state of a device based on the quality of radio signals received between scan intervals, comprising the following steps: radio signal reception, elimination of interfering radio signals, and finally, determination of the motion state of device. This novel method is useful for cyclic positioning and monitoring devices. It extends battery life per charge by reducing the occurrence of false motion detections. Additionally, the solution can help reduce hardware costs by eliminating the need for a motion sensor module.
    Type: Application
    Filed: October 23, 2024
    Publication date: June 26, 2025
    Applicant: VIETTEL GROUP
    Inventors: NGUYEN HUY DAO, QUANG DAN CHU, VAN TIEN TRAN, PHUONG NAM LE, THI ANH HONG CHU
  • Publication number: 20250212171
    Abstract: The invention addresses a method for simultaneously retrieving NTRIP data streams and transmitting positioning data using a 4G network for low-cost RTK positioning systems. This method employs the PPPoS protocol and the LwIP library, along with the implementation process of applying this method to real-world systems. The approach enhances data update rate and ensures high accuracy with a superior RTK “Fixed” positioning rate for affordable RTK systems, significantly optimizing hardware system costs. The effectiveness of the invention has been demonstrated through practical testing, showing a marked improvement and complete resolution of the limitations associated with the previous AT command method.
    Type: Application
    Filed: October 23, 2024
    Publication date: June 26, 2025
    Applicant: VIETTEL GROUP
    Inventors: QUANG DAN CHU, NGOC KHIEM TRAN, PHUONG NAM LE, THI HONG LINH PHAN