Patent ID: 8224185

Claim:
A USB compatible apparatus for connecting between an optical USB device and an electrical USB device, comprising: a female terminal including an electrical USB port to which a plug of the electrical USB device is detachably connected; a signal processor for processing an optical signal received from the optical USB device to obtain a signal conforming to a signal system of an electrical USB standard, and processing an electrical signal received from the electrical USB device to obtain a signal conforming to a signal system of an optical USB standard; a signal converter for converting the optical signal received from the optical USB device into an electrical signal and the electrical signal received from the electrical USB device into an optical signal; and a male terminal detachably connected to an optical USB port of the optical USB device, and including optical waveguides and guide pins, wherein the signal processor comprises: a buffer module and a PLL module for eliminating latency resulting from a speed difference between a high-speed signal obtained through conversion of the optical signal received from the optical USB device and the signal received from the electrical USB device; and a matching module for matching impedance between the optical signal and the electrical signal at different speeds.