Patents by Inventor Jun-lchi NAGATA

Jun-lchi NAGATA 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).

  • POSITION DETECTION SYSTEM, POSITION DETECTION DEVICE, POSITION DETECTION METHOD, AND SENSOR TERMINAL
    Publication number: 20200174138
    Abstract: A position detection system includes a GNSS sensor terminal that receives a satellite signal from a GNSS satellite as a snapshot, at least one relay device that receives the snapshot GNSS signal transmitted by the GNSS sensor terminal, and a calculation device that measures a position of the GNSS sensor terminal by using a code phase and a Doppler frequency of the GNSS satellite obtained from the snapshot GNSS signal, wherein the calculation device estimates an initial position of the GNSS sensor terminal by using position information of the relay device that has received the snapshot GNSS signal transmitted by the GNSS sensor terminal.
    Type: Application
    Filed: November 22, 2019
    Publication date: June 4, 2020
    Applicant: FUJITSU LIMITED
    Inventors: Kouichi KANDA, Jun-lchi NAGATA