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|1. (WO2018200424) ALGORITHM ENHANCEMENTS FOR HAPTIC-BASED PHASED-ARRAY SYSTEMS|
|Applicants:||ULTRAHAPTICS IP LTD
MUÑOZ, Jonathan, Martinez
LONG, Benjamin, John Oliver
CARTER, Thomas, Andrew
|Title:||ALGORITHM ENHANCEMENTS FOR HAPTIC-BASED PHASED-ARRAY SYSTEMS|
Improved algorithm techniques may be used for superior operation of haptic- based systems. An eigensystem may be used to determine for a given spatial distribution of control points with specified output the set of wave phases that are the most efficiently realizable. Reconstructing a modulated pressure field may use emitters firing at different frequencies. An acousiic phased-array device uses a comprehensive reflexive simulation technique. There may be an exchange of information between the users and the transducer control processors having the ability to use that information for optimal haptic generation shadows and the like. Applying mid -air haptic sensations to objects of arbitrary 3D geometry requires that sensation of the object on the user's hand is as close as possible to a realistic depiction of that object. Ultrasonic haptics with multiple and/or large aperture arrays have high-frequency update rates required by the spatio-temporal modulation. More efficient haptic systems require the prevention of a channel of audio unintentionally encoding phase information that may distort its perception.