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.
Patent No.:
Date of Patent:
Sep. 13, 2022
Filed:
Dec. 19, 2019
Applicant:
Canon Kabushiki Kaisha, Tokyo, JP;
Inventors:
Akehiko Uchiyama, Kawasaki, JP;
Tadahiko Iijima, Yokohama, JP;
Assignee:
CANON KABUSHIKI KAISHA, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01T 1/17 (2006.01); H04J 3/06 (2006.01); H04L 29/08 (2006.01); H04L 29/06 (2006.01); H04L 67/12 (2022.01); H04L 67/01 (2022.01);
U.S. Cl.
CPC ...
G01T 1/17 (2013.01); H04J 3/0638 (2013.01); H04L 67/12 (2013.01); H04L 67/42 (2013.01);
Abstract
A time synchronization system includes at least one time server and a plurality of time clients connected to each other via a network. The time client comprises: a communication unit configured to obtain time information of the time server by transmitting/receiving messages to/from the time server; and a time count control unit configured to synchronize time information of an internal timepiece with time information of the time server. The time count control unit controls transmission of the messages by adjusting transmission intervals of the messages to irregular intervals.