The present invention describes a method for superimposing prespecified locational, environmental, and contextual controls on user interactions, including interactions of mobile users, with computational resources. A system is described for electronically monitoring contextual information concerning...http://www.google.com.au/patents/US5603054?utm_source=gb-gplus-sharePatent US5603054 - Method for triggering selected machine event when the triggering properties of the system are met and the triggering conditions of an identified user are perceived
Method for triggering selected machine event when the triggering properties ...
