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Three-Dimensional Perceptions in Haptic Systems

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  • Publication Date:
    August 29, 2024
  • Additional Information
    • Document Number:
      20240288945
    • Appl. No:
      18/648428
    • Application Filed:
      April 28, 2024
    • Abstract:
      An acoustic field may be produced from a transducer array having known relative positions and orientations In this acoustic field, one or more control points may be defined. An amplitude may be assigned to the control point. Mid-air haptic effect for a virtual object on a human body part may be generated by moving the control point in a single closed curve comprising a plurality of curve segments. The single closed curve traverses at least one location where the human body part intersects with the virtual object. Additionally, a user may interact with virtual three-dimensional content using the user's hands while a tracking system monitoring the user's hands, a physics engine updates the properties of the virtual three-dimensional content and a haptic feedback system provides haptic information to the user.
    • Claim:
      1-28. (canceled)
    • Claim:
      29. A method comprising: producing an acoustic field from a transducer array having known relative positions and orientations; defining a control point wherein the control point has a known spatial relationship relative to the transducer array; assigning an amplitude to the control point; generating a mid-air haptic effect for a user by traversing the control point in a closed curve, wherein the closed curve comprises a first portion and a second portion; wherein during the first portion, the control point activates haptics, and during the second portion, the control point activates reduction of audible noise.
    • Claim:
      30. The method as in claim 29, wherein wherein the closed curve comprises a plurality of curve segments.
    • Claim:
      31. The method as in claim 30, wherein the closed curve is traversed relative to a normal vector defined relative to the user.
    • Claim:
      32. The method as in claim 30, wherein the closed curve comprises multiple curves to provide feedback to multiple users.
    • Claim:
      33. The method as in claim 30, wherein the closed curve is defocused at a user's location.
    • Claim:
      34. The method as in claim 30, wherein traversing the control point in a single closed curve comprises: computing a length of the closed curve required to complete a closed path; for each of the plurality of curve segments, creating additional haptic effects at each intersection with a user; for the plurality of curve segments that do not contribute to the haptic effects, traversing the control point at a faster speed.
    • Current International Class:
      06; 06; 06; 06; 06
    • Accession Number:
      edspap.20240288945