Tag system

Details Tag system Tag system

1998-07-07

2000-06-20

Lee, Benjamin C.

Communications: electrical

Condition responsive indicating system

Specific condition

3405721, 3405681, 340570, 340571, 3405728, 3405729, 340531, 34082534, 34082554, G08B 1314

Patent

active

060782587

ABSTRACT:
A very low power receiver and a transmitter are integrated on one silicon chip, thereby achieving a significant miniaturization of the tag with a long life time, and at the same time offering a significant reduction in unit price, despite requiring the use of a battery. The use of a backup battery helps overcome the range problem, the high cost of the reader, and the environmental problems associated with the emission of very strong magnetic fields.

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patent: 5821870 (1998-10-01), Jackson, Jr.

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