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:
Feb. 02, 2016
Filed:
Mar. 15, 2013
Siemens Industry, Inc., Alpharetta, GA (US);
Brian Hogan, Temecula, CA (US);
SIEMENS INDUSTRY, INC., Alpharetta, GA (US);
Abstract
A programmable frequency termination shunt suitable to terminate a portion of a railroad track circuit. The programmable frequency termination shunt includes a multi-frequency shunt circuit having a plurality of selectable shunt frequencies and a processor coupled to the multi-frequency shunt circuit. The processor is adapted to set the termination frequency of the shunt by selecting one of the shunt frequencies of the multi-frequency shunt circuit. The shunt is powered by signals transmitted along the rails of the railroad track and can be programmed in response to signals from a rail-based communication link or a wireless communication link.