公开(公告)号：WO2023031585A1

公开(公告)日：2023-03-09

申请号：PCT/GB2022/052193

申请日：2022-08-26

Applicant: ULTRALEAP LIMITED

Inventor： PITTERA, Dario ,  FRIER, William ,  GEORGIOU, Orestis ,  SEAH, Sue Ann ,  LONG, Benjamin John Oliver

IPC: G06F3/01 ,  B06B1/06 ,  G10K11/34 ,  B60W50/16

Abstract: Use of ultrasound beams to unlock the perception of mid-air tactile stimuli on hairy skin by using acoustic streaming is described. Such acoustic streaming is directional, more focused than fan and air-puff devices, doesn't require the use of cumbersome attachments, fast since it can be generated at a distance with the speed of sound, and can be used in a complementary fashion with vibrotactile mid-air stimulation deriving from the same hardware. Further proposed is a way to modulate the thermal perception of the mid-air tactile stimuli without the need for a thermal source or wearables. The effect of acoustic streaming and its thermal modulation may be combined for the accurate elicitation of affective touch sensations.