KEY STRUCTURE, KEY INPUT METHOD AND ELECTRONIC DEVICE USING THE SAME

The disclosure relates to a key structure, a key input method, and an electronic device using the same, and an operating method of an electronic device includes: identifying an input operation, by comparing output values of at least two sensors provided on a side surface of the electronic device and a threshold value; determining whether a function corresponding to the identified input operation exists; and, based on the corresponding function existing, executing the corresponding function. Accordingly, the electronic device can receive various input operations under a keyless structure.