METHOD AND APPARATUS FOR PRODUCING AN ACOUSTIC FIELD

The present invention concerns a method and apparatus for the modulation of an acoustic field for providing tactile sensations. A method of creating haptic feedback using ultrasound is provided. The method comprises the steps of generating a plurality of ultrasound waves with a common focal point us...

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Bibliographic Details
Main Authors Benjamin John Oliver LONG, Sriram SUBRAMANIAN, Thomas Andrew CARTER
Format Patent
LanguageEnglish
Published 25.01.2017
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Summary:The present invention concerns a method and apparatus for the modulation of an acoustic field for providing tactile sensations. A method of creating haptic feedback using ultrasound is provided. The method comprises the steps of generating a plurality of ultrasound waves with a common focal point using a phased array of ultrasound transducers, the common focal point being a haptic feedback point, and modulating the generation of the ultrasound waves using a waveform selected to produce little or no audible sound at the haptic feedback point.
Bibliography:Application Number: ZA20150008936