Patent ID: 8244927

Claim:
An apparatus comprising: an audio or video jack connector configured to receive an audio or video jack plug of a separate device, wherein the connector includes an electrical contact for connection to a plurality of conducting terminals arranged in series along a length of the plug; a detection circuit in electrical communication with the connector, wherein the detection circuit is configured to: determine a value of resistance at a conducting terminal, wherein the resistance is representative of a resistive load of the separate device at the conducting terminal of the plug; and a processor communicatively coupled to the detection circuit, wherein the processor is configured to: identify a function of the separate device according to a first determined resistance value; configure an operation of the apparatus according to the determined function; and initiate a second operation of the second device according to a detected change from the first resistance value to a second resistance value, wherein the change is detected while a connection to the connector is maintained and after identification of the function performable by the separate device using the first resistance value.