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. 22, 2013
Filed:
Dec. 15, 2010
James R. Hoelscher, Rochester, NY (US);
James R. Hoelscher, Rochester, NY (US);
Siemens Rail Automation Corporation, Louisville, KY (US);
Abstract
A system for sensing current that includes a processor and a current sensor coupled to the processor. The current sensor includes a sensor threshold value. The system also includes a current generator coupled to the current sensor. The current generator is operable to generate a test current signal defined by a time-varying linear function. The current sensor is operable to be coupled to an external current source and to output a sensor output signal based on a detected current to the processor. The processor is operable to determine a magnitude of the sensor threshold value based on the sensor output signal.