| 摘要 |
A bug detector, for detecting a hidden bug 24, comprises an acoustic generator 21, an identification decoder 22, and a control device 23. The acoustic generator 21 generates a specific audio signal for the microphone 241 of the bug 24 to receive and output a radio signal through its radio transmitter. The identification decoder 22 receives the radio signal for decoding so as to obtain a decoded audio signal. The control device 23 connects to the acoustic generator 21 and the identification decoder 22 for comparing the specific audio signal with the decoded audio signal so as to determine the existence of the bug 24. The control device 23 may additionally comprise a display and switch unit 232 to control and display different operation modes of the bug detector and indicate a correspondence between the specific audio signal and the decoded audio signal. |
