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:
Apr. 09, 2013
Filed:
Aug. 31, 2009
Armo Pinding, Tallinn, EE;
Madis Kaal, Tallinn, EE;
Armo Pinding, Tallinn, EE;
Madis Kaal, Tallinn, EE;
Skype, Dublin, IE;
Abstract
A communication system, method and client program for communicating via a first network. The system comprises a first network and a router coupling the second network to the first network, the router comprising an address translator configured to map second-network addresses to a lesser number of first-network addresses identifying the second user nodes collectively to the first network. Each of the second user nodes is installed with a communication client configured so as when executed on the second user nodes to: compare the first-network addresses of two of the user nodes, and, if their first-network addresses match such that both are nodes of the second network, communicate an availability status of one of the two user nodes between the two user nodes directly over the second network without routing via the first network.