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:
Aug. 21, 2012
Filed:
Oct. 23, 2009
Applicants:
Wei Jiang, Tokyo, JP;
Atsushi Seita, Tokyo, JP;
Inventors:
Wei Jiang, Tokyo, JP;
Atsushi Seita, Tokyo, JP;
Assignee:
AZBIL Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 12/56 (2006.01);
U.S. Cl.
CPC ...
Abstract
If either of the MAC processing units in one of the ring connection control circuits receives a MAC frame that includes control information for the redundancy control process related to one of the subrings from that subring, then output of the relevant MAC frame to the transfer processing unit is restricted and the relevant MAC frame is output to the STP processing unit.