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:
Oct. 14, 2025
Filed:
Aug. 01, 2023
Schweitzer Engineering Laboratories, Inc., Pullman, WA (US);
Mauricio G. Silveira, Pullman, WA (US);
Bharat Nalla, Ashburn, VA (US);
Rajeev Kumar Babu, Hutto, TX (US);
David J. Dolezilek, Pullman, WA (US);
Edson L. Hernandez Cortinas, Pullman, WA (US);
Nishchal Sharma, Vancouver, WA (US);
Andrew W. Rash, Pullman, WA (US);
Andrew A. Miller, Moscow, ID (US);
Lihua Ran, Pullman, WA (US);
Schweitzer Engineering Laboratories, Inc., Pullman, WA (US);
Abstract
This disclosure pertains to systems and methods to detect network errors in a parallel redundant protocol (PRP) network. A node-level redundancy error subsystem of an intelligent electronic device (IED) maintains records (e.g., counts) of information associated with missing duplicate frames expected from node devices on the PRP network via redundant first and second local area networks (LANs). Non-zero counts of missing duplicate frames may be identified as network errors.