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. 26, 2023
Filed:
Feb. 17, 2022
Kabushiki Kaisha Yaskawa Denki, Kitakyushu, JP;
Ryota Moriwaka, Fukuoka, JP;
Kunihiko Ogawa, Fukuoka, JP;
Takayuki Nakamura, Fukuoka, JP;
Norihito Mizuguchi, Fukuoka, JP;
Abstract
A controller includes circuitry configured to: synchronize a master clock with an external global clock and set a master time based on the master clock; synchronize a controller clock with the master clock and perform time synchronization to synchronize a controller time based on the controller clock with the master time; transmit controller time data indicating the synchronized controller time to at least one local device; set a plurality of time windows corresponding to a plurality of clock cycles of a clock signal for the time synchronization; determine whether one clock cycle of the plurality of clock cycles has started within one time window of the plurality of time windows, the one time window corresponding to the one clock cycle; and suspend the time synchronization corresponding to the one clock cycle, in response to determining that the one clock cycle has not started within the one time window.