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:
Feb. 16, 2021
Filed:
Apr. 08, 2019
Applicant:
Microsemi P.o.e Ltd., Hod Hasharon, IL;
Inventors:
Assignee:
Microsemi P.O.E Ltd., Hod Hasharon, IL;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H02J 9/06 (2006.01); H04L 12/10 (2006.01);
U.S. Cl.
CPC ...
H02J 9/061 (2013.01); H04L 12/10 (2013.01);
Abstract
A mark and hold system comprising a main power supply, a mark voltage power supply and a detection current source. After detection, and optionally classification, the main power supply is disconnected from the PD and instead the PD is connected to the mark voltage power supply. The detection current source draws current through a port resistance of the PSE and the PD. The voltage across the port resistance is monitored to determine whether the PD is still connected to the port.