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. 29, 2015
Filed:
Feb. 18, 2011
Tatsuya Maruyama, Hitachi, JP;
Tsutomu Yamada, Hitachinake, JP;
Norihisa Yanagihara, Tokyo, JP;
Shinji Yonemoto, Narashino, JP;
Takashi Iwaki, Ichihara, JP;
Hironori Ohashi, Narashino, JP;
Yutaka Matsumoto, Narashino, JP;
Tatsuya Maruyama, Hitachi, JP;
Tsutomu Yamada, Hitachinake, JP;
Norihisa Yanagihara, Tokyo, JP;
Shinji Yonemoto, Narashino, JP;
Takashi Iwaki, Ichihara, JP;
Hironori Ohashi, Narashino, JP;
Yutaka Matsumoto, Narashino, JP;
HITACHI, LTD., Tokyo, JP;
Abstract
An information processor capable of ensuring time synchronization accuracy, ensuring EtherCAT command consistency, and easily developing the software based on a 2-port configuration even when a communication path error occurs includes: an arithmetic section; at least two communication sections each including a transmission section and a reception section; and a redundant communication control section that controls a communication path between the arithmetic section and the communication section. The redundant communication control section includes: a communication path state determination section that determines a network path state; and a redundant path switching section that switches connection between the arithmetic section and at least two communication sections.