Apparatus and method for a system capable of remotely validating the

Abstract

A system capable of remotely validating the identity of individuals and monitoring their locations includes a first device attached to the individual being monitored by a circumferential band worn around his wrist, ankle or neck that is capable of electronically generating a sequence of pseudorandom numbers that will cease to function if the band is cut or otherwise opened to detach the device from the individual. The system also includes a second device which is a remote microprocessor or computer based monitor synchronized to the same sequence of pseudorandom numbers and in occasional communication with the individual over telephone lines or some other remote means such as a radio frequency transmission link. The system may be used to limit remote access of computer data bases to authorized individuals or to limit entry to facilities such as offices or buildings on a campus. Access is authorized when the individual communicates a current valid pseudorandom number to the central computer-based monitor. The pseudorandom number sequence, which changes in time and cannot be predicted, serves as an access key which will only continue to function if it remains attached to the same individual. The same basic system can also be used to determine an individual's location for various purposes, such as electronic monitored house arrest, if the central based computer monitor can establish a telephone number that the individual responds to or if the individual's coordinates are established using some ancillary means such as a portable Loran receiver or a Global Positioning Satellite receiver carried by the individual being monitored.