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
James D Pauley, Allen E Ripingill Jr, James B Waite, John Loyd: House arrest monitoring system. B I Incorporated, Fitch Even Tabin & Flannery, April 17, 1990: US04918432 (204 worldwide citation)

A house arrest monitoring system that automatically verifies the presence or absence of prisoners, patients or other personnel who are required to remain at a prescribed location or to report to the prescribed location at a certain time. The system includes an identification tag that is worn by the ...


4
Gary T Carroll: Transponder device. B I Incorporated, Bryant R Gold, February 9, 1988: US04724427 (164 worldwide citation)

A transponder device receives a carrier signal from an interrogator unit. This carrier signal, of frequency F, is rectified by a rectifying circuit in order to generate operating power. Logic/timing circuits derive a clock signal and second carrier signal of frequency F/n from the received carrier s ...


5
James D Pauley, Allen E Ripingill Jr: Tag for use with personnel monitoring system. B I Incorporated, Fitch Even Tabin & Flannery, August 28, 1990: US04952913 (96 worldwide citation)

A tag for use with an individual monitoring system. The tag is worn by an individual being monitored, preferably on the ankle or leg where it can be concealed by the clothing of the individual. The tag is fully self contained and sealed. The circuits of the tag periodically generate an identificatio ...


6
Gary T Carroll, Robert D Hunter: Time and accounting system. B I Incorporated, Bryant R Gold, April 14, 1987: US04658357 (65 worldwide citation)

A system for automatically logging the interaction between a plurality of objects. Small, self-contained transmitting beacon units are attached or carried by a first set of objects. These beacon units transmit a uniquely coded signal at prescribed intervals. A small, self-contained portable transcei ...


7
Gary T Carroll, Robert D Hunter: Time and accounting system. B I Incorporated, Bryant R Gold, October 22, 1985: US04549264 (61 worldwide citation)

A system for automatically logging the interaction between a plurality of objects. Small, self-contained transmitting beacon units are attached to a first set of objects. These beacon units transmit a uniquely coded signal at prescribed intervals. A small, self-contained portable transceiving unit i ...


8
Gary T Carroll: Identification system. B I Incorporated, Bryant R Gold, October 9, 1984: US04475481 (59 worldwide citation)

An identification system comprising an intermittent electromagnetic generator at one frequency and a remote receiver for receiving the electromagnetic energy and using it to power an encoder of digital information and a transmitter at a different frequency for transmitting the encoder digital inform ...