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:
Dec. 16, 2014
Filed:
Aug. 19, 2011
Tatsuya Maruyama, Hitachi, JP;
Tsutomu Yamada, Hitachinaka, JP;
Shinji Yonemoto, Narashino, JP;
Takashi Iwaki, Ichihara, JP;
Hironori Ohashi, Narashino, JP;
Yutaka Matsumoto, Narashino, JP;
Tatsuya Maruyama, Hitachi, JP;
Tsutomu Yamada, Hitachinaka, JP;
Shinji Yonemoto, Narashino, JP;
Takashi Iwaki, Ichihara, JP;
Hironori Ohashi, Narashino, JP;
Yutaka Matsumoto, Narashino, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A communication control unit and a communication control system are provided in which control devices can synchronously operate. In a communication control system in which a communication control unit and multiple control devices having an actuator to operate a control target are connected via a network, the communication control unit provides a control command to the control devices, synchronizes times of the communication control unit and the control devices, obtains communication delays relative to the control devices, collects control start times of the control devices, obtains a time by subtracting the control start time from a predetermined time as a start time of the control device, calculates a time obtained by subtracting the communication delay from the start time for each control device, and transmits the control command to the control devices before the earliest time of the calculated times.