The MCU is used for the center controller, achieving high accuracy frequency measurement by methods of multi-cycle synchronism and quantization time-delay.
Launching the distance learning activity on the net, need to solve two basic problems: Synchronism among the conveyance, they and data of audio frequency, video streaming information.
在网上开展远程教学活动，需要解决两个基本问题：音频、视频流信息的传送以及它们与数据之间的同步。
3
The DSP processor was adopted to realize the permanent magnetic synchronism motor frequency conversion timing system.