77902918
Dec 30, 2009
Mobile electronic system for monitoring residents to deter unauthorized exit from a confined area, locate individuals who have exited from confined areas, and detect when an individual has left a monitored area, comprised of a radio transmitter, electronic tags containing small transceivers, a mobile handheld computer, a radio transceiver integrated with handheld computer, an antenna, and computer software for monitoring and locating transmitters and transceivers
Electrical and Scientific Apparatus