Patent ID: 7759975
Filing Date: 2010-07-20
Classification: G05B,H01L,H04L

Abstract:
1. An interface device comprising a first area including a plurality of circuits, a second area including a plurality of circuits, and first and second insulating circuits for respectively coupling said first area and said second area through capacitors, said interface device comprising: a first signal transmitting circuit for transmitting a pulse signal between said first area and said second area through said first insulating circuit; and a second signal transmitting circuit for transmitting a pulse signal between said first area and said second area through said second insulating circuit, wherein: said first area comprises a first interface circuit receiving a pulse signal and transmitting the received pulse signal to the second area, and a first converting circuit for converting a circuit state signal representing the state of circuits included in the first area into a pulse signal; and said second area comprises a second interface circuit receiving the pulse signal output from said first interface circuit and transmitted through said first signal transmitting circuit, and a second converting circuit converting the pulse signal output from said first converting circuit and transmitted through said second signal transmitting circuit into a new state signal.