为提高汽车的安全防盗性能,丰田汽车公司在97款凌志400轿车上加装了发动机停机装置(Engine Immobiliser system)。该装置采用了一种脉冲转发器(Transponder)系统,即在点火钥匙的柄部埋置了1个脉冲转发器芯片,当放置在点火钥匙筒周围的线圈接收到脉冲转发器芯片发出的ID编码信号时,电脑便将其与储存在电脑内存中的编码进行对比。如相符,则发 To improve the car’s security features, Toyota Motor Corp. installed an Engine Immobiliser system on 97 Lexus 400 sedans. The system uses a transponder system in which a pulse transponder chip is embedded in the handle of the ignition key. When the coil placed around the ignition key cylinder receives the ID code from the transponder chip Signal, the computer compares it with the code stored in the computer’s memory. If consistent, then made