Method of converting a series ofm-bit information words to a modulated signal, coding device, recording device.
转换信息字序列为调制信号的方法，编码设备，记录设备。
A power converter circuit (3) drives a switching device by the pulse-width modulated wave for converting a direct current into the three phase alternating current.
电力变换器主电路部（3），其根据该脉冲宽度调制波对开关元件进行驱动，将直流电压转换为三相交流电压；
The ways we discuss here make the best of an old and not widely used device. Other devices such as printer, plotter can be modulated and developed in similar ways.
它使一个较老的且通用性不强的设备能充分得以利用，其它设备如各类打印机、绘图仪与计算机通讯均可按类似方法调试和开发。
Furthermore, the bias current can be pulsated with a switching device to modulate the emission intensities, and then the modulated component is selectively detected with the FFT analyser.
另外，可用开关装置实现偏置电流的脉冲，进而调制发射强度。然后，经过调制的组分被FFT分析器有选择性地检测。
Thus, the bias voltage could be modulated to be 0. This saved the bias setup is benefited to system integration and pointed out way of realizing biasless bistable device.
用此一性质可将偏置电压调制为零省去偏置系统，利于系统集成，为实现无偏压双稳系统指明了方向。
A novel all optic fibers Q-modulated erbium-doped optic fibers laser is reported. The optic fibers ring mirror with optic fibers grating is used as Q-modulation device in its configuration.
报道一种新型全光纤调q掺铒光纤激光器，在其结构中采用带有光纤光栅的光纤环形镜作为调q装置。
A novel all optic fibers Q-modulated erbium-doped optic fibers laser is reported. The optic fibers ring mirror with optic fibers grating is used as Q-modulation device in its configuration.
报道一种新型全光纤调q掺铒光纤激光器，在其结构中采用带有光纤光栅的光纤环形镜作为调q装置。
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