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. 20, 2015
Filed:
Feb. 14, 2013
Cisco Technology, Inc., San Jose, CA (US);
Vipul Jain, San Jose, CA (US);
James Molenda, Los Gatos, CA (US);
Cisco Technology, Inc., San Jose, CA (US);
Abstract
In one implementation, a classification resistance of a powered device is adjusted passively. The powered device is configured to receive a classification voltage from a network device and, in response, is configured to send a first current indicative of a first classification resistor to the network device. The first current and first classification resistor indicate a power requirement when no accessories are connected to the powered device. When at least one accessory is connected to the powered device, the powered device is configured to send a second current indicative of a second classification resistor to the network device. The second classification resistor is isolated from other circuitry of the at least one accessory. The second classification resistor may be located in the powered device, the accessory, or a connector coupled to the powered device and the accessory.