Transponder having high character capacity

摘要: A passive transponder having the capability of producing a large number unique identification signals. The is provided with an antenna for receiving relatively low-frequency signal which provides energy activating transponder. Oscillations in received are utilized to time sequential energization plurality output terminals encoding device. Preselected ones connected utilization stages. second device sequentially energizes stages turn coupled transmitter and serve modulate transmitted manner reflecting pattern connected. thereby produced identifying individual