LG has its Knock Code, and Samsung will soon have something similar. The patent filing with the USPTO describes a new system to unlock mobile devices using touch-and-drag input.
The catch here is that you must create a drawing that has at least one intersection in it, while Sammy’s software will do its best to identify the shape.
This means that touch-based input will work at all times, even when the phone is in the standby mode, monitoring your touch & drag inputs to unlock your precious gadget if/when needed. Forget about using the power button to wake up the phone.
Users will also be able to define different drawings to get directly into certain apps or fire-up previously defined functions.