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:
Feb. 17, 2015
Filed:
Feb. 08, 2010
Masahiko Ikawa, Tokyo, JP;
Kazunori Washio, Tokyo, JP;
Masashi Kitayama, Tokyo, JP;
Takuya Ishioka, Tokyo, JP;
Hiroyuki Kumazawa, Tokyo, JP;
Masahiko Ikawa, Tokyo, JP;
Kazunori Washio, Tokyo, JP;
Masashi Kitayama, Tokyo, JP;
Takuya Ishioka, Tokyo, JP;
Hiroyuki Kumazawa, Tokyo, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
Each of a master node and a slave node has a safety data processing unit and a high reliability communication unit. At the time of transmission, the safety data processing unit creates a safety data packet including data about safety and the high reliability communication unit creates a communication data packet including the safety data packet and transmits the communication data packet a predetermined number of times. At the time of reception, the high reliability communication unit acquires and outputs a safety data packet by determining one of one or more communication data packets having the same contents which it has received properly as an effective packet, and the safety data processing unit analyzes a state concerning the safety of a system on the basis of the data about safety acquired from the safety data packet.