Patent ID: 6654800
Filing Date: 2003-11-25
Classification: G06F,G06Q,H04L

Abstract:
A computer system comprising:means for storing and managing a plurality of postings, each posting including a source identification tag, an information body, and a broadcast descriptor, said broadcast descriptor identifying a geographical region of said each posting, wherein said geographical region is defined by a closed region on a map; and means for receiving-and accepting a plurality of requests from mobile and stationary users, each request from a user including a user identification tag and an antenna descriptor, said antenna descriptor identifying a geographical location of said user; and means for processing said each request by identifying and sending to said user postings having geographical regions that contain said geographical location of said user, wherein said means for processing said each request operates on all requests of said users; and means for processing a subsequent request from said user, said subsequent request including a user identification tag and an antenna descriptor specifying a subsequent geographical location of said user, said subsequent geographical location being a current location of said user, wherein said means for processing said subsequent request sends to said user other postings having geographical regions that contain said subsequent geographical location of said user, wherein said other postings do not include any posting previously sent to said user.