Patents by Inventor Eitaro HIOKI

Eitaro HIOKI 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).

  • Time synchronization system, master device, slave device, and program
    Patent number: 11277253
    Abstract: A time synchronization system includes a master and slave devices connected to each other via a data bus and a signal line dedicated to transmission of a fixed-period signal. The master device transmits the fixed-period signal through the signal line regularly at a transmission period, and transmits start time information indicating a transmission start time at which transmission of the fixed-period signal is started and transmission period information indicating the transmission period for the fixed-period signal through the data bus. The slave device counts a number of times the fixed-period signal is received and calculates, as a current time in the master device, a transmission time at which the master device transmits the fixed-period signal based on the number of times the fixed-period signal is received. The slave device corrects the time to the calculated current time in the master device.
    Type: Grant
    Filed: April 22, 2019
    Date of Patent: March 15, 2022
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Eitaro Hioki, Naoya Uchiyama
  • TIME SYNCHRONIZATION SYSTEM, MASTER DEVICE, SLAVE DEVICE, AND PROGRAM
    Publication number: 20220045836
    Abstract: A time synchronization system includes a master and slave devices connected to each other via a data bus and a signal line dedicated to transmission of a fixed-period signal. The master device transmits the fixed-period signal through the signal line regularly at a transmission period, and transmits start time information indicating a transmission start time at which transmission of the fixed-period signal is started and transmission period information indicating the transmission period for the fixed-period signal through the data bus. The slave device counts a number of times the fixed-period signal is received and calculates, as a current time in the master device, a transmission time at which the master device transmits the fixed-period signal based on the number of times the fixed-period signal is received. The slave device corrects the time to the calculated current time in the master device.
    Type: Application
    Filed: April 22, 2019
    Publication date: February 10, 2022
    Applicant: Mitsubishi Electric Corporation
    Inventors: Eitaro HIOKI, Naoya UCHIYAMA