Patent ID: 8255582

Claim:
An optical communication module, wherein the optical communication module comprises an electrical interface, an optical interface configured to couple to at least two optical fibers, and an optical module connecting with the optical interface and the electrical interface respectively, the optical module comprising an optical transmitting module, an optical receiving module and control circuitry connecting with the optical transmitting and receiving modules respectively; wherein the control circuitry comprises: an initialization mode to disconnect termination resistors on USB 3.0 standard or USB 2.0 standard data paths; a first mode to detect the type of attached device connecting with the electrical interface, and the attached device is USB 2.0 standard device or USB 3.0 standard device; a second mode to support a data transfer of USB 3.0 standard, and the second mode comprises A mode and B mode with a different power consumption and supported data rate, and a detect unit to detect idle state of data traffic on the data path of USB 3.0 standard to determine to stay on the A mode or enter to the B mode automatically during operation in the second mode; the optical communication module in A mode supporting a transmission data rate ranging from 20 Mbps to 5 Gbps, and the optical communication module in B mode having lower power consumption than the mode A and supporting at least a data rate transmission of 20Mbps; and a third mode to support a data transfer of USB 2.0 standard.