Patent ID: 8050315

Claim:
A method of communicating a digital signal across an interface, wherein the interface is positioned between two devices, a transmitting device and a receiving device, and wherein the interface operates to receive, isolate, and transmit bidirectional digital signals between each of the two devices, the method comprising: receiving the digital signal at the interface from the transmitting device; analyzing the digital signal at the interface to detect a change in an edge of the digital signal from a high state to a low state by monitoring the edge of the digital signal; upon detecting a change in the edge of the digital signal from a high state to a low state, determining, at the interface, an intended direction of the digital signal; transmitting the digital signal from the interface to an isolator channel configured to isolate the digital signal in the intended direction of the digital signal; isolating the digital signal at the isolator channel; and transmitting the isolated digital signal in the intended direction of the digital signal from the isolator channel to the receiving device.