Electricity: measuring and testing – Impedance – admittance or other quantities representative of... – Lumped type parameters
Reexamination Certificate
2007-03-27
2010-11-23
Natalini, Jeff (Department: 2831)
Electricity: measuring and testing
Impedance, admittance or other quantities representative of...
Lumped type parameters
C713S300000, C700S291000, C361S093700
Reexamination Certificate
active
07839154
ABSTRACT:
A system and method of classifying a high powered device (PD) with an increased current limit includes: connecting a voltage to the PD, measuring current through a classification resistor connected to the PD, and determining a PD classification signature based on the current according to classification steps such that a minimum classification step includes a minimum current of 0 mA and a maximum classification step includes a maximum current beyond a predetermined current limit. The system includes a PSE, voltage source, PD classification resistor, and PD voltage, connected to the P. An alternative embodiment further includes a discrete classification circuit and discrete classification resistor to be used to measure the current for classification purposes instead of the PD classification resistor when the PD and PD classification resistor do not support power classification under the classification scheme. The discrete classification circuit and discrete classification resistor can be located on-chip or off-chip.
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802.3af™, IEEE Standard for Information Technology—Telecommunications and information exchange between systems—Local and metropolitan area networks—Specific requirements, Part 3: Carrier Sense Multiple Access with Collision Detection(CSMA/CD)Access Method and Physical Layer Specifications, Amendment: Data Terminal Equipment(DTE)Power via Media Dependent Interface(MDI), IEEE Computer Society, IEEE, New York, NY, ISBN 0-7381-3696-4 (SH95132) (Print), ISBN 0-7381-3697-2 (SS95132) (PDF), Jun. 18, 2003, pp. i-x and 1-121 (133 pages total).
Hussain Asif
Pandya Manisha
Broadcom Corporation
Natalini Jeff
Sterne Kessler Goldstein & Fox P.L.L.C.
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