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研制成功一种新型的红外微型信息发送和接收装置．采用了调频的工作方式并用红外光作信息载体，因此，该装置能保证信号高保真传送，解决了无线信息发送接收装置的保密性差及存在邻近干扰的问题．在设计中采用了新一代的集成电路，加入了自动增益控制电路．该装置装配简单，无需精确调试即可稳定工作，其频率响应范围为０．１～１２ｋＨｚ，频率失真度＜２％，信噪比＞５２ｄＢ，是较理想的短距离信息传送装置．此外，只要对其电路稍加改进，在军事、娱乐、信息监测、防盗报警等方面都可广泛应用．
Developed a new type of infrared mini-information sending and receiving device. Which adopts the working mode of FM and uses infrared light as the information carrier. Therefore, the device can ensure high-fidelity transmission of the signal and solves the problem of poor confidentiality and proximity interference of the wireless information sending and receiving device. In the design using a new generation of integrated circuits, joined the automatic gain control circuit. The device is simple to assemble and can work stably without precise debugging. The frequency response range is 0.1-12kHz, the frequency distortion is less than 2% and the signal-to-noise ratio is more than 52dB. It is an ideal short-distance information transmitting device. In addition, as long as the circuit slightly improved, military, entertainment, information monitoring, anti-theft alarm can be widely used.