| 摘要 |
The system is able to communicate with multiple circuits of different protocol type.- DETAILED DESCRIPTION - The universal reader (1) searches for (2,11,12,17,18, 19) the nomadic objects (7) by emitting a scanning signal of modulation modes. Each nomadic object, receiving the scanning signal, produces (8,31,32,33,35) an echo signal according to its own particular protocol. The universal reader (1) analyses (11,12) each echo signal and deduces from it the specific protocol applied by the nomadic object (7). The universal reader (1) inserts (11,12) the messages to be transmitted into the reader frames, in conformity with the specific protocol, so that they may be interpreted by the nomadic object
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