公开(公告)号：US20230161415A1

公开(公告)日：2023-05-25

申请号：US18094272

申请日：2023-01-06

Applicant: Ultrahaptics IP Two Limited

Inventor： Hua YANG ,  Leonid KONTSEVICH ,  James DONALD ,  David S. HOLZ ,  Jonathan MARSDEN ,  Paul DURDIK

IPC: G06F3/01 ,  G06T19/00 ,  G06F3/04815 ,  G06F3/0486

CPC classification number: G06F3/017 ,  G06T19/006 ,  G06F3/04815 ,  G06F3/0486 ,  G06F3/011 ,  G06F3/0346

Abstract: During control of a user interface via free-space motions of a hand or other suitable control object, switching between control modes can be facilitated by tracking the control object's movements relative to, and its contact with a “virtual touch plane or surface” (i.e., a plane, portion of a plane, and/or surface computationally defined in space, or corresponding to any physical surface).

公开(公告)号：US20220413566A1

公开(公告)日：2022-12-29

申请号：US17901542

申请日：2022-09-01

Applicant: Ultrahaptics IP Two Limited

Inventor： David S. HOLZ ,  Paul DURDIK

IPC: G06F1/16 ,  G06F3/01 ,  G06F3/00 ,  G06F3/042 ,  H04N5/232 ,  G02B5/04 ,  G02B7/18 ,  H04N5/247

Abstract: The technology disclosed relates to enhancing the fields of view of one or more cameras of a gesture recognition system for augmenting the three-dimensional (3D) sensory space of the gesture recognition system. The augmented 3D sensory space allows for inclusion of previously uncaptured of regions and points for which gestures can be interpreted i.e. blind spots of the cameras of the gesture recognition system. Some examples of such blind spots include areas underneath the cameras and/or within 20-85 degrees of a tangential axis of the cameras. In particular, the technology disclosed uses a Fresnel prismatic element and/or a triangular prism element to redirect the optical axis of the cameras, giving the cameras fields of view that cover at least 45 to 80 degrees from tangential to the vertical axis of a display screen on which the cameras are mounted.