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:
Jul. 25, 2006
Filed:
Apr. 29, 2002
Daryl Carvis Cromer, Apex, NC (US);
Joseph Wayne Freeman, Raleigh, NC (US);
Chad Lee Gettelfinger, Durham, NC (US);
Steven Dale Goodman, Raleigh, NC (US);
Eric Richard Kern, Durham, NC (US);
Randall Scott Springfield, Chapel Hill, NC (US);
Daryl Carvis Cromer, Apex, NC (US);
Joseph Wayne Freeman, Raleigh, NC (US);
Chad Lee Gettelfinger, Durham, NC (US);
Steven Dale Goodman, Raleigh, NC (US);
Eric Richard Kern, Durham, NC (US);
Randall Scott Springfield, Chapel Hill, NC (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
In a computer network including a plurality of interconnected computers, one of the computers being a sleeping computer in a power down state, the sleeping computer listening for a packet associated with the sleeping computer, a method and system of waking the sleeping computer from the computer network. An incoming packet of data is transmitted from one of the computers in the network to the sleeping computer. When the sleeping computer detects the incoming packet, it determines if the incoming packet contains a data sequence associated with the sleeping computer. Further, the sleeping computer compares a transit value in the incoming packet to a predetermined value stored at the sleeping computer. The transit value indicates how far the data packet has traveled through the network, indicating the approximate origin of the data packet. Knowing the approximate origin of the data packet allows the client system to identify if the data packet originated from an external network. The predetermined value represents an origin within the internal network. Accordingly, if the incoming packet matches the particular data sequence associated with the sleeping computer, and the transit value in the packet matches the predetermined value stored at the sleeping computer, then a signal is issued to wake the sleeping computer. Otherwise, the incoming packet is discarded and the sleeping computer is not awaken.