1
Gary T Carroll, George J Pilmanis, Vincent D Stinton: Adaptable electronic monitoring and identification system. B I Incorporated, Fitch Even Tabin & Flannery, August 28, 1990: US04952928 (517 worldwide citation)

A personnel monitoring system includes a transmitting or transponding unit that is worn or carried by the individual being monitored. This transmitting or transponder unit periodically, or upon request, transmits a uniquely encoded signal that identifies the person being monitored, as well as inform ...


2
Vincent D Stinton: Adaptable electric monitoring and identification system. B I Incorporated, Fitch Even Tabin & Flannery, April 20, 1993: US05204670 (394 worldwide citation)

A personnel monitoring system includes a host central processing unit, or CPU, maintained by a supervising agency that automatically, or by request, receives and interprets data from individuals being monitored. The monitored individuals may wear or carry a transmitting or transponding unit that per ...


3
David M Page, Elvin L Riggs, Joseph P Newell, Vincent D Stinton: Adaptable personnel supervisory system with automatic fee collection. BI Incorporated, Fitch Even Tabin & Flannery, November 29, 1994: US05369699 (114 worldwide citation)

A supervisory system and method automatically tracks and reports the status, e.g., current address, employer, telephone number, etc., of a group of enrollees, and automatically collects a fee for such service. Each enrollee "reports in" to a host CPU of the system in accordance with a specific conta ...


4