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:
Aug. 14, 2012
Filed:
Sep. 14, 2009
Armo Pinding, Tallinn, EE;
Armo Pinding, Tallinn, EE;
Skype, Dublin, IE;
Abstract
A method, program and user node for use in a communication system implemented over a network comprising a plurality of user nodes, each being associated with a respective presence status indicating an availability of the user node for communication within the communication system. The method comprises, at each of a first one or more of the user nodes: transmitting repeated presence messages to each of a plurality of others of the user nodes, each of the presence messages comprising at least one of: a request for the presence status of the other user node, and a notification of the presence status of the first user node; determining a measure of resource usage in relation to at least one of the first user node and the other user nodes; and controlling a regularity of the repeated transmission of presence messages in dependence on the determined measure of resource usage measure.