Patent ID: 7375641

Claim:
In a facility having a plurality of portals and having a number of individuals having access to the portals and where each individual is assigned a unique portal for his or her use, a system for allowing each individual to receive a unique voice message from his or her portal that a particular portal is the one assigned when the individual is in the proximity of his or her unique portal, said system comprising: a uniquely coded element to be worn by each individual; a plurality of transponders, each transponder affixed on or near a particular portal, each transponder having means to emit an IR or RF scanning signal for scanning the coded element worn by a particular individual; each said transponder having means to determine when a detected signal has the same unique correspondence to a particular portal; a central computer; when there is correspondence between a detected signal and a portal, a signal indicating correspondence being directed to said central computer; said central computer having stored unique audio messages, each uniquely corresponding to a particular portal; and when a signal indicating correspondence is directed to said computer, it is used to actuate a corresponding unique audio message which is directed to said corresponding portal for audio transmission by an audio speaker located at or near the transponder of said portal.