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.

Date of Patent:
Aug. 02, 2016

Filed:

Jan. 08, 2013
Applicant:

Stmicroelectronics S.r.l., Agrate Brianza, IT;

Inventors:

Aldo Torazzina, Biassono, IT;

Riccardo Russo, Milan, IT;

Assignee:

STMICROELECTRONICS S.R.L., Agrate Brianza (MB), IT;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 27/08 (2006.01); G01R 31/08 (2006.01); G06F 1/00 (2006.01); H04L 12/10 (2006.01); G06F 1/26 (2006.01);
U.S. Cl.
CPC ...
G01R 27/08 (2013.01); H04L 12/10 (2013.01); G06F 1/26 (2013.01);
Abstract

PDs that can be supplied through the LAN line are discriminated from PDs that cannot be so supplied as a function of the resistance of the supply line and of the voltage drop caused by nonlinear elements in series therewith. The values of these two parameters are estimated by applying two distinct voltages to the supply terminals of the LAN line and sensing the relative steady-state currents absorbed by the power supply line, and by processing voltage and current values for estimating the resistance of the line and the voltage drop caused by nonlinear elements connected in series therewith.


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