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:
Sep. 07, 2010
Filed:
Dec. 31, 2007
D. Matthew Landry, Austin, TX (US);
Russell J. Apfel, Austin, TX (US);
D. Matthew Landry, Austin, TX (US);
Russell J. Apfel, Austin, TX (US);
Silicon Laboratories, Inc., Austin, TX (US);
Abstract
A power sourcing equipment (PSE) device is disclosed that includes an interface adapted to communicate with a powered device via wire pairs of a cable, a power supply circuit adapted to provide power to the interface, and device detection logic to detect the powered device coupled to the interface. The PSE device further includes power classification logic coupled to the interface and adapted to provide a power classification signal to the powered device. The power classification signal includes a first power classification signal and a second power classification signal to identify a power classification associated with the powered device. The power classification logic monitors the interface to detect a device classification response from the powered device and determines the power classification associated with the powered device based on the device classification response.