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:
Dec. 19, 2017
Filed:
Nov. 04, 2014
Applicant:
Cisco Technology, Inc., San Jose, CA (US);
Inventor:
Koussalya Balasubramanian, Santa Clara, CA (US);
Assignee:
Cisco Technology, Inc., San Jose, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 12/10 (2006.01); H04L 12/40 (2006.01); G06F 1/26 (2006.01); H04L 12/26 (2006.01); G01R 27/08 (2006.01); G01R 31/08 (2006.01);
U.S. Cl.
CPC ...
H04L 12/10 (2013.01); G06F 1/266 (2013.01); H04L 12/40045 (2013.01); G01R 27/08 (2013.01); G01R 31/086 (2013.01); H04L 43/50 (2013.01);
Abstract
A powered device (PD) receives a Power-over-Ethernet (PoE) voltage to power the PD over a cable from Power Source Equipment (PSE) configured to output a requested one of multiple candidate PoE voltages to the cable. The PD determines a preferred PoE voltage among the multiple candidate PoE voltages that minimizes a total power loss due to (i) the cable, and (ii) a power loss of the PD that would result if the PD were powered through the cable. The PD requests the preferred PoE voltage from the PSE, receives the preferred PoE voltage from the PSE, and operates at the preferred PoE voltage.