Design and Evaluation of Encoded Haptic Pulses for Smartwatches

Figure 2

Example of light pulse removal criteria: (a) random pulses that cannot be generalized; (b) simple on-off light pulses; (c) light pulses of similar waveforms are removed, and only one is left; (d) pulses that contain light flash that is difficult to be expressed by vibration motors.

(a)

(b)

(c)

(d)