audio communication device

基本解释

The present invention discloses a transmitting device based on ultrasonic communication, which includes information modulate unit and audio- sound wave launcher heard by human ear;
本发明公开了一种基于超声波实现通讯的发送装置，该发送装置包括信息调制单元和可发出人耳能听到的音频声波的发射器；
ip.com
With the In-System programmable technology and Complex Programmable Logic Device (CPLD), the realization of multiplexing and demultiplexing in the digital audio communication system is discussed.
介绍了在数字语音通信中，利用在系统可编程技术和复杂可编程逻辑器件CPLD，实现了数字语音的复接和分接；