| 摘要 |
An identification system (30) uses an interrogator (32) to provide a reference signal and one or more count signals and uses a plurality of tags (34-36), each being assigned an identification number, N. The tags (34-36) provide a response signal (54, 55, 56) to the interrogator (32) after the interrogator (32) has transmitted a reference signal followed by N count signals. The interrogator (32) receives the response signal (54, 55, 56) from each of the tags (32-34). The tags (32-34) can detect the reference signal, detect the count signals, and transmit the response signal (54, 55, 56). |
