A pulsefrequencymodulation (PFM) with discrete frequency is designed.
设计了一种离散频率的PF M控制方式。
2
A pulsefrequencymodulation (PFM) circuit for retinal prosthesis, which generates electrical pulses with frequency proportional to the intensity of incident light, is presented.
提出了一种用于视网膜修复的脉冲频率调制电路结构。
3
This paper describes the major performance and applications of the PFM (pulsefrequencymodulation) optical fiber transmission equipment for colour TV programs with two accompanying sound channels.