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. 26, 2006
Filed:
May. 15, 2003
Steven K. J. Mancey, Hemel Hempstead, GB;
Paul J. Moran, Hemel Hempstead, GB;
William G. Roose, St Albans, GB;
Peter T. Doggart, Aylesbury, GB;
Nigel S. Garbett, Ickenham, GB;
Steven K. J. Mancey, Hemel Hempstead, GB;
Paul J. Moran, Hemel Hempstead, GB;
William G. Roose, St Albans, GB;
Peter T. Doggart, Aylesbury, GB;
Nigel S. Garbett, Ickenham, GB;
3Com Corporation, Marlborough, MA (US);
Abstract
A system for providing power over data lines, particularly Ethernet data lines, comprises a network switch including a multiplicity of ports each of which is capable of supplying power in addition to data packets, a controllable power source which is coupled to said ports for supplying power thereto and a processor which is coupled to control the supply of power by the power source. The processor is programmed to guarantee the supply of power to selected ports and to allow or inhibit the supply of power to ports other than the selected ports, having regard to a specified limit on the supply of power by the controllable power source and the total guaranteed power to the selected ports.