System and Method for Spatio-Temporal-Context Aware Interaction of Users with an Entity of Interest

Ashok K. Agrawala, Amitabh Varshney, Christian B. AlmazanUnited States Patent 8,219,670, filed 11/10/2008, issued 07/10/2012.

[US Patent & Trademark Office Application Database]

A multifunctional interaction system which is capable of spatio-temporal context localization of users and of communication of audio/video streams to an entity of interest defined by the user, includes a communication domain supporting a predefined localization service, a server associated with the communication domain, client devices, and a dynamically changing context database which is customized in accord with the dynamics of interaction sessions of client devices with the server. The client communicates with the system to either request services therefrom or to send a message to the entity of interest. The system is provided with a panic alert mechanism which, upon actuation, transmits an audio/video data stream along with the client location tag, time stamp, and client ID, to a police precinct for prompt action.