Electrical computers and digital processing systems: multicomput – Computer conferencing – Demand based messaging
Reexamination Certificate
2004-03-11
2009-11-03
Vaughn, Jr., William C (Department: 2444)
Electrical computers and digital processing systems: multicomput
Computer conferencing
Demand based messaging
C707S793000
Reexamination Certificate
active
07613777
ABSTRACT:
Described is a system and method in which client-side tracking mechanisms allow a computing device to efficiently decide which messages need to be downloaded from a server for subsequent filtering evaluation, and request only those messages. For example, the present invention may be used to limit a download of POP3 email messages to those received in the last n days. When a message is downloaded that does not meet user-specified filtering criteria such as a date window, the message data is discarded, but the state of that message as not meeting the criteria is preserved in an already-checked table. On a subsequent data request, the received list of unique message IDs is checked against the main message store and the checked table, and message data only downloaded if the unique ID is not found. Messages that are not listed are removed from the message store or the checked table.
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Giles Tadd H.
Kromann Paul K.
Microsoft Corporation
Vaughn, Jr. William C
Workman Nydegger
Zhang Shirley X
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