Patent ID: 8903306

Claim:
An apparatus comprising: first and second signal points, said first signal point coupled to a device and said second signal point coupled to a signal source, said first signal point receiving a first control signal from said device; a first switch coupled between said first and second signal points, a microprocessor, said microprocessor generating a second control signal; a second switch coupled to said second signal point; a power supply coupled to said second switch; a detector coupled between said first signal point and said microprocessor, said detector detecting said first control signal; said microprocessor coupled to said first switch turning said first switch conductive for establishing a signal path between said first and second signal points in response to a detection of said first control signal; said microprocessor coupled to said power supply turning said second switch non-conductive by de-activating said power supply for disabling a flow of said second control signal into said second signal point in response to said detection of said first control signal; and said signal path providing said first control signal at said second signal point for changing an operating state of said signal source from a first operation mode to a second operation mode.