G - Physics – 01 – D
Patent
G - Physics
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D
G01D 5/14 (2006.01) A01K 11/00 (2006.01) G01B 7/00 (2006.01) G01V 3/08 (2006.01) G01V 15/00 (2006.01) G06K 7/00 (2006.01) G06K 7/08 (2006.01) G07C 9/00 (2006.01) G08B 13/24 (2006.01) G01S 13/80 (1990.01)
Patent
CA 2128432
2128432 9314474 PCTABS00024 Electronic identification device, comprising a) means (10) for generating and emitting an electromagnetic field, b) a plurality of transponder units (11), each of which comprising storing means (12) for storing identification data, and transmitting means (13) for transmitting a signal including said identification data when said transponder unit (11) has been exposed to said electromagnetic field, and c) receiving means (14) for receiving said signal and for decoding said identification data. At least one element (15) of a material, the magnetical or electrical properties thereof being influenced by external magnetic fields is disposed on or in the absolute vicinity of said transponder unit (11), and a magnetic field generating means (16) for generating a magnetic field is provided at an interrogation zone (17) to activate any element (15) appearing in said interrogation zone (17). A processing means (18) is provided in said transponder unit (11) to modify said signal in dependence of the magnetic field activating said element (15).
Persson Leif Arnold
Tyren Carl
Borden Ladner Gervais Llp
Rso Corporation N.v.
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