Programmable transponder

摘要

A passive transponder comprising communication antenna means for inductively receiving a first communication signal and inductively transmitting a second communication signal in response thereto, said first and second communication signals each including data and instructions, reprogrammable memory means for storing data received by said transponder, said reprogrammable memory means having a plurality of memory addresses; information generating means for creating said second communication signal in response to said first communication signal, said information generating means including memory interface means for selectively addressing an address of said reprogrammable memory in response to said first communication signal and operating on said selectively addressed memory address in response to said first communication signal.