This paper introduces a harmonic analysis device based on USB, using FPGA to process the harmonic calculation, that has advantages such as high speed, low cost and modularization.
本文设计了一基于USB总线的谐波分析仪，用FPGA芯片进行谐波计算，具有速度快、成本低、模块化等特点。
Due to the speed limit of USB connection, the resolution (352x288) and colour bit depth that can be captured is low. Hence, the final quality is much poor than the origanl.
可是，就著USB本身传送速度极限，能被捕捉的解像度与及颜色只能有限，因此得出来的影像质素会比原来的差很多。
Proposed one kind with realizes based on the USB connection's low speed optical mouse's design.
提出了一种基于USB接口的低速光电鼠标的设计与实现。
USB is a kind of novel PC bus criterion. With the quality of fast speed, convenience and low interference, USB is the most available communication interface of modern intelligence instrument.
通用串行总线(usb)作为一种新型微机总线规范，具有便捷易用、传输速率快、低干扰等特点，非常适合作为现代智能仪器的通信接口。
The data transfer of USB used in this paper conquers some disadvantages, such as low speed, complex of connecting and so on, providing a new pattern interface for the data transfer of plotter .
本论文采用的USB这种传输方式，克服了以往绘图机利用并行电缆带来地低速、迮线复杂等种种缺点，为绘图机的数据传输提供了一种崭新的新型接口。
The data transfer of USB used in this paper conquers some disadvantages, such as low speed, complex of connecting and so on, providing a new pattern interface for the data transfer of plotter .
本论文采用的USB这种传输方式，克服了以往绘图机利用并行电缆带来地低速、迮线复杂等种种缺点，为绘图机的数据传输提供了一种崭新的新型接口。
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