Patent ID: 7916875

Claim:
An audio input-output module comprising: a plurality of plug-in receptors; a plug-in detection module, operably coupled to the plurality of plug-in receptors for detecting that a plug-in connector has been recently coupled to a selected plug-in receptor of the plurality of plug-in receptors; a plug-in device detection module, operably coupled to the plurality of plug-in receptors and the plug-in detection module, for detecting a plug-in device type of a plug-in device coupled to the one of the plurality of plug-in receptors, wherein the plug-in device detection module includes: a measurement signal generator for generating a measurement signal; a port coupler, operably coupled to the measurement signal generator, for coupling the measurement signal to the selected plug-in receptor for generating an input/output signal and for generating a port signal in response to the measurement signal; a reference signal generator for generating a reference signal based on the input/output signal, the reference signal having a plurality of reference signal values; and a detection module, operably coupled to the selected plug-in receptor and the reference signal generator, for detecting a plug-in device type of a plug-in device coupled to the selected plug-in receptor, based on the reference signal and the port signal; and a switch network, operably coupled to the plug-in device detection module, for selectively coupling to the one of the plurality of plug-in receptors, based on the detected plug-in device type, one of: an audio output and an audio input.