Analysis and Improvement on a Unimodal Haptic PIN-Entry Method

Figure 8

Map lock: (a) initial interface, (b) initial mapping for first PIN digit, (c) updated map, (d) final mapping for first PIN digit, (e) initial mapping for second PIN digit, and (f) user input interface.

(a)

(b)

(c)

(d)

(e)

(f)