Communications: electrical – Condition responsive indicating system – Specific condition
Patent
1996-08-16
1998-11-17
Hofsass, Jeffery
Communications: electrical
Condition responsive indicating system
Specific condition
340573, 340686, 340436, 29721611, 280735, 455 83, G08B 1314
Patent
active
058382330
ABSTRACT:
In a preferred embodiment, an object orientation sensor device, including: a first LC tag disposed at a first selected location in the object; a driver/reader circuit disposed so as to detect the presence of the first LC tag when the object is in a first orientation and to not detect the presence of the first LC tag when the object is not in the first orientation; and the driver/reader circuit being arranged to energize the first LC tag with a magnetic field and to subsequently detect a first resonant frequency echo produced by the first LC tag when the magnetic field is removed.
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Hawes Kevin Joseph
Kelley Jon Paul
Wiloch Frank Bruce
Delco Electronics Corporation
Hofsass Jeffery
Navarre Mark A.
Wu Daniel J.
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