System and method for access control in a portable electronic device

摘要

A method of access control in an electronic device in which a plurality of predefined gestures are each encoded with a respective Unicode code includes monitoring for input at the electronic device, for each input determined to be one of a plurality of predefined gestures including gestures from a touch-sensitive input device or from a movement sensor, mapping the input to a respective Unicode character and adding the respective Unicode character to a passcode to provide an entered passcode, comparing the entered passcode to a stored passcode, and changing an access state at the electronic device if the entered passcode matches the stored passcode, where each of the plurality of encoded gestures is encoded with a respective Unicode code that is not used in Unicode codes for other character encodings.