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    Method and system for detection of weighted contact lenses imprinted with iris images
    1.
    发明授权
    Method and system for detection of weighted contact lenses imprinted with iris images 有权

    公开(公告)号：US12131587B2

    公开(公告)日：2024-10-29

    申请号：US17513220

    申请日：2021-10-28

    申请人： Princeton Identity

    发明人： David Alan Ackerman

    IPC分类号： G06V40/40 ,  G06F18/22 ,  G06V40/18

    CPC分类号： G06V40/40 ,  G06F18/22 ,  G06V40/197

    摘要： Disclosed herein are methods, apparatus, and systems for iris recognition. A method for weighted spoof contact lens detection includes requesting a subject to roll or tilt head when needing access via an iris recognition device, acquiring, by the iris recognition device, iris images of a rolled head, establishing, by the iris recognition device, a horizontal axis by connecting pupils in an iris image, matching, by the iris recognition device, at least one iris in the iris image to an enrolled iris, determining, by the iris recognition device, whether the horizontal axis is within a rotational variance of an enrolled horizontal axis associated with the enrolled iris, and rejecting, by the iris recognition device, access for the subject when the horizontal axis is greater than the rotational variance of an enrolled horizontal axis.

    Beamforming vacuum cell
    2.
    发明授权
    Beamforming vacuum cell 有权

    公开(公告)号：US12130446B2

    公开(公告)日：2024-10-29

    申请号：US18109762

    申请日：2023-02-14

    申请人： ColdQuanta, Inc.

    发明人： Steven Michael Hughes

    IPC分类号： G02B27/09 ,  G02B1/11 ,  G02B27/10 ,  G02B27/14 ,  G02B21/32

    CPC分类号： G02B27/0977 ,  G02B1/11 ,  G02B27/0905 ,  G02B27/108 ,  G02B27/142 ,  G02B27/145 ,  G02B21/32

    摘要： Beamformers are formed (e.g., carved) from a stack of transparent sheets. A rear face of each sheet has a reflective coating. The reflectivities of the coatings vary monotonically with sheet position within the stack. The sheets are tilted relative to the intended direction of an input beam and then bonded to form the stack. The carving can include dicing the stack to yield stacklets, and polishing the stacklets to form beamformers. Each beamformer is thus a stack of beamsplitters, including a front beamsplitter in the form of a triangular or trapezoidal prism, and one or more beamsplitters in the form of rhomboid prisms. In use, a beamformer forms an output beam from an input beam. More specifically, the beamformer splits an input beam into plural output beam components that collectively constitute an output beam that differs in cross section from the input beam.

    Appliance, method and device for straightening wheels
    4.
    发明授权
    Appliance, method and device for straightening wheels 有权

    公开(公告)号：US12128467B1

    公开(公告)日：2024-10-29

    申请号：US18167760

    申请日：2023-02-10

    申请人： Donald Neubauer

    发明人： Donald Neubauer

    IPC分类号： B21D1/08

    CPC分类号： B21D1/08

    摘要： A wheel straightening apparatus including a rotatable attachment mechanism radially connected to a spindle that includes a locking cuff radially surrounding the spindle a sleeve coaxial to and rotatably connected to the locking cuff, an arm member having a first end and a second end opposed to the first end, a first face and a second face opposed to the first face, the first face of the elongated member connected to the sleeve at a location proximate to the first end and oriented parallel to the outer surface of the locking cuff, the arm member projecting perpendicularly outward from the locking cuff relative to the first edge of the locking cuff and a socket connected to the second face of the arm member at a location proximate to the second end of the arm member configured to removably receive a wheel working appliance.

    Associating device coordinate systems in a multi-person augmented reality system
    7.
    发明授权
    Associating device coordinate systems in a multi-person augmented reality system 有权

    公开(公告)号：US12125233B2

    公开(公告)日：2024-10-22

    申请号：US17723227

    申请日：2022-04-18

    申请人： GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.

    发明人： Yi Xu

    IPC分类号： G06T7/70 ,  G06T7/00 ,  G06T19/00

    CPC分类号： G06T7/70 ,  G06T7/97 ,  G06T19/006 ,  G06T2207/30204

    摘要： Methods and systems are disclosed for mapping the coordinate systems of devices for AR applications. A third device may receive a first pose from a first device associated with a first coordinate system and a second pose from a second device associated with a second coordinate system. The third device may receive an image that includes fiducial markers presented by each of the first device and the second device. The first pose and the portion of the image including the first fiducial marker may define a first set of 3D coordinates. The second pose and the portion of the image including the second fiducial marker may define a second set of 3D coordinates. A coordinate-system transform can be generated from a correspondence between the first set and the second of 3D coordinates. The coordinate-system transform may be transmitted to the first device and/or the second device.