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:
Mar. 12, 2019
Filed:
Jun. 09, 2016
Honeywell International, Inc., Morris Plains, NJ (US);
Huagang Xu, Shanghai, CN;
Haifeng Liang, Shanghai, CN;
Lei Zou, Shanghai, CN;
Zhi Yang, Shanghai, CN;
Junyu Chen, Shanghai, CN;
Honeywell International Inc., Morris Plains, NJ (US);
Abstract
A communication method includes receiving data messages at a specified one of a plurality of communication devices in a ring network and detecting a status of the ring network. The communication method also includes changing a port of the specified communication device from a blocking state to a forwarding state in response to detecting a failure in the ring network. The communication method further includes filtering and forwarding the received data messages in the ring network, where the received data messages that originated from the specified communication device are blocked from further forwarding at the specified communication device. In addition, the communication method includes changing the port of the specified communication device from the forwarding state to the blocking state in response to detecting a recovery of the ring network.