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:
Apr. 25, 2006
Filed:
Dec. 30, 2003
Jeffrey M. Brown, Windham, ME (US);
John L. Schadler, Raymond, ME (US);
William A. Decormier, Poland, ME (US);
Andre J. Skalina, Portland, ME (US);
Jeffrey M. Brown, Windham, ME (US);
John L. Schadler, Raymond, ME (US);
William A. DeCormier, Poland, ME (US);
Andre J. Skalina, Portland, ME (US);
SPX Corporation, Charlotte, NC (US);
Abstract
A monitoring system for an transmission line, such as a multi-channel television broadcasting antenna feed line, gathers data about the physical and electrical condition of the line in real time. The system can detect and localize deterioration and other time-dependent faults in the transmission line by the tendency of faults to produce reflections back to the transmitter that were not part of the original characterization of a particular installation. Some kinds of faults, identified early enough, can be corrected without replacing components, and especially without shutting down the transmission line during prime viewing hours. Other faults can be detected in time to order replacement parts before the underlying problem becomes severe, and to allow servicing during periods of low demand.