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.:

US 9373253 B1

PDF
Full Text
Expired
Date of Patent:
Jun. 21, 2016

Filed:

Feb. 27, 2014
Applicants:

Tetsuya Taira, Nisshin, JP;

Hiroshi Bitoh, Toyota, JP;

Inventors:

Tetsuya Taira, Nisshin, JP;

Hiroshi Bitoh, Toyota, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G08C 19/24 (2006.01); G05B 9/02 (2006.01);
U.S. Cl.
CPC ...
G08C 19/24 (2013.01); G05B 9/02 (2013.01); G05B 2219/25352 (2013.01); G05B 2219/34382 (2013.01);
Abstract

A safety controller includes a first interrupt signal output unit outputting a first interrupt signal in a cycle synchronous with that of a first carrier signal defining a control cycle of a control target; a second interrupt signal output unit outputting a second interrupt signal in a cycle synchronous with that of a second carrier signal defining a control cycle of the control target, the first and second carrier signals having the same cycle and a predetermined phase difference; and a control unit executing tasks and controlling the control target by switching and scheduling time partitions according to outputs of the first and second interrupt signals from the first and second interrupt signal output units. The control unit stops controlling the control target upon detecting, as an abnormality related to the first and second interrupt signals, that the first and second interrupt signals are not output in a predetermined order.


Find Patent Forward Citations

Taira, Tetsuya. (2016). Safety controller and safety control method (U.S. Patent No. 9373253). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9373253

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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