Electrical computers and digital processing systems: multicomput – Computer conferencing – Demand based messaging
Reexamination Certificate
2004-10-25
2009-10-13
Caldwell, Andrew (Department: 2442)
Electrical computers and digital processing systems: multicomput
Computer conferencing
Demand based messaging
Reexamination Certificate
active
07603421
ABSTRACT:
A method and system for delivering messages to a user in a computerized communication system, such as an instant messaging (IM) system. When a computer system receives a registration message indicating that a user is currently active at a given station, the computer system responsively sets the given client station as a target station for messages directed to the user. If no user activity is detected at the given client station for a predefined period of time, however, the computer system then automatically sets a new client station as the target station for subsequent messages directed to the user.
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Miller Robert H.
Roche Elizabeth C.
Caldwell Andrew
MacIlwinen John M
Sprint Spectrum L.P.
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