Extending the Touchscreen Pattern Lock Mechanism with Duplicated and Temporal Codes

Figure 1

Pair-wise comparison of the proposed lock mechanisms to the standard pattern lock. In each illustration, the unlock action starts at node “1” and ends at the large red dot. (a) In the multiselect condition, the “2” is added to the pattern by moving over a previously selected node. (b) In the time-select condition, a second “3” is added to the pattern. “Long-press” allows the current node to be reselected and added to the pattern.

(a)

(b)