-
公开(公告)号：US12158522B2
公开(公告)日：2024-12-03
申请号：US17835411
申请日：2022-06-08
Applicant: ULTRAHAPTICS IP LTD
Inventor： Michele Iodice , Benjamin John Oliver Long , Brian Kappus , Thomas Andrew Carter , Rafel Jibry , Orestis Georgiou
Abstract: Described herein are techniques for tracking objects (including human body parts such as a hand), namely: 1) two-state transducer interpolation in acoustic phased-arrays; 2) modulation techniques in acoustic phased-arrays; 3) fast acoustic full matrix capture during haptic effects; 4) time-of-flight depth sensor fusion system; 5) phase modulated spherical wave-fronts in acoustic phased-arrays; 6) long wavelength phase modulation of acoustic field for location and tracking; and 7) camera calibration through ultrasonic range sensing.
-
公开(公告)号：US11550395B2
公开(公告)日：2023-01-10
申请号：US16734479
申请日：2020-01-06
Applicant: ULTRAHAPTICS IP LTD
Inventor： David Beattie , Rory Clark , Adam Harwood , Orestis Georgiou , Benjamin John Oliver Long , Thomas Andrew Carter
Abstract: Described is a method for instilling the haptic dimension of texture to virtual and holographic objects using mid-air ultrasonic technology. A set of features is extracted from imported images using their associated displacement maps. Textural qualities such as the micro and macro roughness are then computed and fed to a haptic mapping function together with information about the dynamic motion of the user's hands during holographic touch. Mid-air haptic textures are then synthesized and projected onto the user's bare hands. Further, mid-air haptic technology enables tactile exploration of virtual objects in digital environments. When a user's prior and current expectations and rendered tactile texture differ, user immersion can break. A study aims at mitigating this by integrating user expectations into the rendering algorithm of mid-air haptic textures and establishes a relationship between visual and mid-air haptic roughness.
-
公开(公告)号：US20200218354A1
公开(公告)日：2020-07-09
申请号：US16734479
申请日：2020-01-06
Applicant: ULTRAHAPTICS IP LTD
Inventor： David Beattie , Rory Clark , Adam Harwood , Orestis Georgiou , Benjamin John Oliver Long , Thomas Andrew Carter
Abstract: Described is a method for instilling the haptic dimension of texture to virtual and holographic objects using mid-air ultrasonic technology. A set of features is extracted from imported images using their associated displacement maps. Textural qualities such as the micro and macro roughness are then computed and fed to a haptic mapping function together with information about the dynamic motion of the user's hands during holographic touch. Mid-air haptic textures are then synthesized and projected onto the user's bare hands. Further, mid-air haptic technology enables tactile exploration of virtual objects in digital environments. When a user's prior and current expectations and rendered tactile texture differ, user immersion can break. A study aims at mitigating this by integrating user expectations into the rendering algorithm of mid-air haptic textures and establishes a relationship between visual and mid-air haptic roughness.
-
公开(公告)号：US20220300070A1
公开(公告)日：2022-09-22
申请号：US17835411
申请日：2022-06-08
Applicant: ULTRAHAPTICS IP LTD
Inventor： Michele Iodice , Benjamin John Oliver Long , Brian Kappus , Thomas Andrew Carter , Rafel Jibry , Orestis Georgiou
Abstract: Described herein are techniques for tracking objects (including human body parts such as a hand), namely: 1) two-state transducer interpolation in acoustic phased-arrays; 2) modulation techniques in acoustic phased-arrays; 3) fast acoustic full matrix capture during haptic effects; 4) time-of-flight depth sensor fusion system; 5) phase modulated spherical wave-fronts in acoustic phased-arrays; 6) long wavelength phase modulation of acoustic field for location and tracking; and 7) camera calibration through ultrasonic range sensing.
-
-
-
Search Results
4
records
(took 0.01 seconds)
