G - Physics – 01 – S
Patent
G - Physics
01
S
343/19
G01S 13/78 (2006.01) B61L 25/04 (2006.01) G06K 7/00 (2006.01) G08G 1/017 (2006.01) G07B 15/00 (2006.01)
Patent
CA 2033868
The subject invention relates to a system for identifying, for writing data into and reading data out of electronic tags which may be attached to moving and moveable objects. An interrogator sends an RF signal to a remote tag, the signal including data intended to be received and stored in the tag. The tag backscatter-modulates the received signal with data temporarily and permanently stored in the tag, including data indicating the identity of the object to which the tag is attached. The interrogator has the capability of (1) recognizing the identity of the tagged abject from the returned backscatter-modulated signal and (2) transmitting data to the tag only if it has data to be transmitted to that particular tagged object. This permits data to be selectively transmitted to a tag and received and stored by that tag only after the tag has been identified as a correct one to receive that data. The tag, in addition, may have the capability of increasing its sensitivity to the receipt of transmitted data after receiving a signal from the interrogator of sufficient strength to be capable of transmitting data to that tag.
Koelle Alfred R.
Landt Jeremy A.
Amtech Systems Corporation
Riches Mckenzie & Herbert Llp
LandOfFree
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