MOBILE DEVICE INTERFACE FOR INPUT DEVICES

摘要

A mobile electronic device (102) includes an earphone/microphone port (104), an I/O circuit to receive a modulated data signal from data input devices via the earphone/microphone port (104), and a processor unit (204) programmed to extract data from the modulated data signal. The processor unit (or the I/O circuit) detects connection of a device to an earphone/microphone connector of the mobile electronic device (102) and determines whether the connected device is a data input device. If the connected device is a data input device (106), the processor unit (204) is programmed to extract data from modulated data signals generated by data input device (106).