Method and apparatus for providing tactile sensations

摘要

The present disclosure concerns a method and apparatus for the creation of an acoustic field for providing tactile sensations. More particularly, but not exclusively, this disclosure concerns a method and apparatus for the creation of an acoustic field providing tactile sensations for use with an interactive device.;The disclosure provides a method of generating a tactile sensation. The method comprises the steps of providing a plurality of acoustic transducers arranged to generate a predetermined distribution of pressure patterns, wherein the pressure patterns comprise a first region providing a first tactile sensation and a second region providing a second, different, tactile sensation.

主权项

1. A method of generating a tactile sensation comprising the steps of:
providing a plurality of ultrasonic transducers arranged to generate a predetermined distribution of non-surface pressure patterns in mid-air using an ultrasonic carrier frequency modulated at a lower frequency so as to be detectable by human skin, wherein the pressure patterns comprise a first non-surface region comprising a focal point for a plurality of acoustic waves modulated at a first frequency providing a first tactile mid-air sensation on human skin, and a second non-surface region comprising a focal point for a plurality of acoustic waves modulated at a second frequency providing a second tactile mid-air sensation on human skin;wherein the first frequency is different than the second frequency; andwherein the first tactile mid-air sensation is different than the second tactile mid-air sensation.