The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Aug. 25, 2020

Filed:

Jul. 31, 2018
Applicant:

Mitsubishi Electric Corporation, Tokyo, JP;

Inventors:

Mikiya Yoshida, Tokyo, JP;

Kentaro Ishihara, Tokyo, JP;

Toshinori Matsui, Tokyo, JP;

Assignee:

Mitsubishi Electric Corporation, Chiyoda-ku, Tokyo, JP;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H04L 7/00 (2006.01); H04L 12/40 (2006.01); H04L 12/403 (2006.01); H04L 12/26 (2006.01);
U.S. Cl.
CPC ...
H04L 7/0054 (2013.01); H04L 7/0037 (2013.01); H04L 12/403 (2013.01); H04L 12/40019 (2013.01); H04L 43/0858 (2013.01);
Abstract

A master control device connected to a plurality of slave control devices via a network is configured to include an own local time counted by a counter unit, in a message and transmit the message to the slave control devices by the timing synchronization unit, calculate a difference between a reception time of a message transmitted from the slave control device, which has received the message, at a timing corrected in accordance with the local time and a pre-calculated message reception predicted time by a timing synchronization determination unit, calculate a correction amount for timing of the slave control devices using the difference by a timing synchronization correction unit, add the correction amount to the local time, include the local time in a message, and transmit the message to the slave control devices.


Find Patent Forward Citations

Loading…