PROTECTION AGAINST BURGLARS USING SELF-TRANSMISSION/RECEPTION RADIO WAVE OF PORTABLE TELEPHONE

摘要

PURPOSE: A protection against burglars using a self-transmission/reception radio wave of a portable telephone is provided to protect a portable telephone by using a self-transmission and reception radio wave of a portable telephone. CONSTITUTION: A protection against burglars using a self-transmission/reception radio wave of a portable telephone utilizes a self-transmission/reception radio waves. The protection against burglars(10) receives a radio wave from a portable telephone(110) and stores the received radio wave in a memory(50). The protection against burglars is operated by using methods like a sound(80), a vibration(90), and a light emission(100) if the received radio wave gets weak. The radio wave stored in the memory is transmitted to the portable telephone in order to operate a self-alarm device(140) of the portable telephone.