Patent ID: 8683087

Claim:
A multiple interface detection circuit configured to connect with a mobile electronic device connector, the detection circuit comprising: a first comparator to compare a bus voltage of the mobile electronic device connector with a first threshold and to provide a first control signal; a second comparator to compare the bus voltage of the mobile electronic device connector with the first threshold and to provide a second control signal; a third comparator to compare the bus voltage of the mobile electronic device connector with a second threshold and to provide a third control signal; a switch control configured to switch one or more signals of the connector; a state machine configured to control the switch control and to determine a signal exchange protocol of a device coupled to the multiple interface detection circuit using the first, second and third control signals; and wherein the multiple interface detection circuit is configured to detect first and second data lines of the mobile electronic device connector are pulled to a supply voltage level and to provide an output to the state machine to indicate the remote device includes a mobile high definition link (MHL).