Universal Serial Bus (USB) nowadays has been used widely for the peripheral equipment, digital device and the scientific instrument field due to such advantages as Plug and Play, flexible expandability and the high speed on transmitting.

• 通用串行总线(Universal Serial Bus, USB)由于具有高传输速率、即插即用和易于扩展等优点而被广泛应用于计算机外设、数字设备和仪器仪表等领域。