Patent ID: 8917158

Claim:
A method of controlling a mobile terminal, the method comprising: displaying an operation screen on a display module of the mobile terminal; receiving a fingerprint-touch input through a user input unit of the mobile terminal, the user input unit being configured to identify a fingerprint, the user input unit including first keys for entering a character and second keys for entering different control commands; if fingerprint information of a fingerprint-touch input received through one of the first keys corresponds to a first of a plurality of previously-stored fingerprint information, displaying on the operation screen a character corresponding to a combination of a detected location of the fingerprint-touch input received through one of the first keys and the first of the plurality of previously-stored fingerprint information; and if fingerprint information of a fingerprint-touch input received through one of the second keys corresponds to a second of the plurality of previously-stored fingerprint information, performing a control operation at a first predefined speed and if the fingerprint information of the fingerprint-touch input received through said one of the second keys corresponds to a third of the plurality of previously-stored fingerprint information, performing the control operation at a second predefined speed different than the first predefined speed.