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1. CA2500037 - SYSTEME ET PROCEDE DE MESSAGERIE INSTANTANEE SANS FIL

Office
Canada
Numéro de la demande 2500037
Date de la demande
Numéro de publication 2500037
Date de publication 08.04.2004
Numéro de délivrance
Date de délivrance 01.09.2009
Type de publication C
CIB
H04L 12/58
HÉLECTRICITÉ
04TECHNIQUE DE LA COMMUNICATION ÉLECTRIQUE
LTRANSMISSION D'INFORMATION NUMÉRIQUE, p.ex. COMMUNICATION TÉLÉGRAPHIQUE
12Réseaux de données à commutation
54Systèmes de commutation par mémorisation et restitution
58Systèmes de commutation de messages
H04W 4/14
HÉLECTRICITÉ
04TECHNIQUE DE LA COMMUNICATION ÉLECTRIQUE
WRÉSEAUX DE TÉLÉCOMMUNICATIONS SANS FIL
4Services spécialement adaptés aux réseaux de télécommunications sans fil; Leurs installations
12Messagerie; Boîtes aux lettres; Annonces
14Services d'envoi de messages courts, p.ex. SMS ou données peu structurées de services supplémentaires
H04W 84/04
HÉLECTRICITÉ
04TECHNIQUE DE LA COMMUNICATION ÉLECTRIQUE
WRÉSEAUX DE TÉLÉCOMMUNICATIONS SANS FIL
84Topologies de réseau
02Réseaux pré-organisés hiérarchiquement, p.ex. réseaux de messagerie, réseaux cellulaires, réseaux locaux sans fil ou boucles locales sans fil
04Réseaux à grande échelle; Réseaux fortement hiérarchisés
CPC
H04L 51/04
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
51Arrangements for user-to-user messaging in packet-switching networks, e.g. e-mail or instant messages
04Real-time or near real-time messaging, e.g. instant messaging [IM]
H04L 51/38
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
51Arrangements for user-to-user messaging in packet-switching networks, e.g. e-mail or instant messages
38in combination with wireless systems
H04L 67/14
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
67Network-specific arrangements or communication protocols supporting networked applications
14for session management
H04L 67/24
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
67Network-specific arrangements or communication protocols supporting networked applications
24Presence management
H04W 4/06
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
4Services specially adapted for wireless communication networks; Facilities therefor
06Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
H04W 4/12
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
4Services specially adapted for wireless communication networks; Facilities therefor
12Messaging; Mailboxes; Announcements
Déposants RESEARCH IN MOTION LIMITED
Inventeurs BELLS, MATTHEW
HAIGH, DAVID M.
Données relatives à la priorité 60/412,818 24.09.2002 US
Titre
(EN) SYSTEM AND METHOD OF WIRELESS INSTANT MESSAGING
(FR) SYSTEME ET PROCEDE DE MESSAGERIE INSTANTANEE SANS FIL
Abrégé
(EN) A system and method of instant messaging is provided. A plurality of messaging clients capable of transmitting instant messages to one another are each configured to share presence information with one another via a network. A determination is made, with respect to each of the messaging clients, as to whether the messaging client is in a state in which it is receptive to receiving presence information from the other messaging clients, and if so, then the presence information is provided to the messaging client. The presence information may be provided directly between the messaging clients, or it may be provided through one or more centralized proxy servers that store and propagate the presence information. A special state is provided, referred to herein as the unknown state, which when entered by a particular messaging client will cause the system to cease further transmissions of presence information to that client and/or transmissions about that client. Upon changing to a communicative state, the system resumes providing presence information to/about the messaging client.