Object identification system

Details Object identification system Object identification system

G - Physics

01

S

G01S 13/74 (2006.01) G06K 7/08 (2006.01) G07C 1/24 (2006.01) G07C 1/26 (2006.01) G07C 9/00 (2006.01)

Patent

CA 2174392

Object identification system comprising a transceiver (1) and at lest a transponder (30) including a memory device (33, 34) for storing an identification code of the transponder and means (35, 36, 37, 38) for creating an identification signal representative of the identification code such that the identification signal is modulated by the bits which constitute the identification code. The transceiver further comprises means (8, 9, 10, 11, 12) for receiving and interpreting said identification signal. The transponder further comprises a variable code generator (32) and means (31) for writing in the memory device (33) a variable code from the variable code generator such that the variable code constitutes at least part of the identification code. The variable code may be constituted, for example, by a random or pseudo-random code.

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