Patent ID: 7231473

Claim:
A data transmission interface compatible with USB protocols, including USB 1.0, USB 1.1 and USB 2.0, and comprising at least the following interface signals: Vbus, D 0 +, D 0 −, D 1 +, D 1 − and GND signals, D 0 +, D 0 − are one differential signal set, D 1 +, D 1 − are another differential signal set, Vbus offers interface power, GND connects to ground, said differential signal sets D 0 +, D 0 − and D 1 +, D 1 − are further designed into Master-Slave structure, said D 0 +, D 0 − is Master and said D 1 +, D 1 − is Slave, said Master signals D 0 +, D 0 − are responsible for coordination USB 1.0. USB 1.1 or USB 2.0 interfaces as well as data transmission.