【摘要】 根据传真通信的一般原理，研制了一种智能型电话／传真自动识别器。叙述了其原理、特点及应用状况，这种识别器既能自动识别出电话和传真信号，又能在识别出传真信号后自动接通传真机电源。实际应用表明。该装置性能可靠，从而实现了“一线两用”及对传真机电源的自动控制。更多还原

【Abstract】 An intelligent telephone/fax automatic discriminator is presented.The principleand the characteristics of the discrimintor are described.The tel/fax discriminator candiscriminate between the telephone and fax signals.It can recognize the fax signal and openthe power switch of the fax automatically.更多还原