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1. (WO2018200424) ALGORITHM ENHANCEMENTS FOR HAPTIC-BASED PHASED-ARRAY SYSTEMS

Pub. No.:    WO/2018/200424    International Application No.:    PCT/US2018/028966
Publication Date: Fri Nov 02 00:59:59 CET 2018 International Filing Date: Tue Apr 24 01:59:59 CEST 2018
IPC: G06F 3/01
G10K 11/34
G06T 17/00
Applicants: ULTRAHAPTICS IP LTD
Inventors: KAPPUS, Brian
MUÑOZ, Jonathan, Martinez
BLENKINSOPP, Robert
HARWOOD, Adam
LONG, Benjamin, John Oliver
CARTER, Thomas, Andrew
WREN, William
Title: ALGORITHM ENHANCEMENTS FOR HAPTIC-BASED PHASED-ARRAY SYSTEMS
Abstract:
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.