Communications: electrical – Condition responsive indicating system – Specific condition
Patent
1993-04-21
1997-02-18
Hofsass, Jeffery
Communications: electrical
Condition responsive indicating system
Specific condition
340503, 34082521, 34082534, 34082554, G08B 1314
Patent
active
056044852
ABSTRACT:
An RF tag (10) includes a plurality of RF resonant circuits (14, 18, 22) which are disposed in a three-dimensional array within a body (30) of solid material. Selected ones of the RF resonant circuits are coated with a conductive ink (36) for programming the RF tag. Non-planar RF resonant circuits (40, 50) provide enhanced directivity. The RF resonant circuits (14, 40, 50) are disposed within an elongated body (72, 82, 94) in spaced apart and substantially axially aligned relation to provide elongated RF tag configurations. An RF tag assembly (110) includes attachment mechanisms (116, 118) for attaching an RF tag (128) to a carrier. A dual mode RF tag assembly (140) is also provided which includes a passive RF circuit (144) and an active RF circuit (142).
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Ghaem Sanjar
Istvan Rudyard L.
Lauro George L.
Hofsass Jeffery
Lee Benjamin C.
Melamed Phillip H.
Motorola Inc.
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