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. 08, 2013
Filed:
Oct. 23, 2007
Jeffrey Lynn Heath, Santa Barbara, CA (US);
John Arthur Stineman, Jr., Carpinteria, CA (US);
Steve Robbins, Calabasas, CA (US);
Jeffrey Lynn Heath, Santa Barbara, CA (US);
John Arthur Stineman, Jr., Carpinteria, CA (US);
Steve Robbins, Calabasas, CA (US);
Linear Technology Corporation, Milpitas, CA (US);
Abstract
A system for providing power to a powered device over a communication cable has a cable resistance measuring mechanism that determines values of response signals detected in response to supplying each of at least three reference signals over the communication cable, and determines the resistance of a pair of wires in the cable based on these values. The cable resistance measuring mechanism may be configured for determining resistance of an Ethernet cable that delivers power to the powered device in a Power over Ethernet system.