A presentity service client has a presentity that issues presence information to a presence service and a watcher which observes presence information for other presentities; a presence change rule holding part holds a presence change rule; and a presence calculating part changes the presence information...http://www.google.fr/patents/US7953811?utm_source=gb-gplus-shareBrevet US7953811 - Presence system and information processing equipment, dynamic buddy list generation method in presence system, and presence notification destination controlling method and its program for use with presence system
Presence system and information processing equipment, dynamic buddy list ...
