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    CONTINUOUS AUTHENTICATION FOR A REAL TIME HOLOGRAM
    5.
    发明公开
    CONTINUOUS AUTHENTICATION FOR A REAL TIME HOLOGRAM 审中-公开

    公开(公告)号：US20240070255A1

    公开(公告)日：2024-02-29

    申请号：US17822558

    申请日：2022-08-26

    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION

    Inventor： Paul LLAMAS VIRGEN ,  Priyansh JAISWAL ,  Peeyush JAISWAL

    IPC: G06F21/44 ,  G03H1/00

    CPC classification number: G06F21/44 ,  G03H1/0011 ,  G03H2001/0022

    Abstract: Provided are techniques for continuous authentication for a real time hologram. A request and a hologram are received, where the hologram is embedded with a first key phrase in accordance with a first sequence, and where the first sequence indicates which portions of the first key phrase are embedded in specific locations of the hologram. A first seed and a second seed are retrieved. A second key phrase is generated using the first seed. A second sequence is generated using the second seed. It is determined whether portions of the second key phrase are embedded in specific locations of the hologram in accordance with the second sequence. In response to determining that the portions of the second key phrase are embedded in specific locations of the hologram in accordance with the second sequence, the hologram is displayed, and the request is processed. Otherwise, the request is rejected.

    ITEM VERIFICATION AND AUTHENTICATION SYSTEM AND METHOD
    6.
    发明公开
    ITEM VERIFICATION AND AUTHENTICATION SYSTEM AND METHOD 审中-公开

    公开(公告)号：US20230221679A1

    公开(公告)日：2023-07-13

    申请号：US17571556

    申请日：2022-01-10

    Applicant: Jiri Perkous

    Inventor： Jiri Perkous

    IPC: G03H1/00 ,  G06V30/224 ,  G06K7/14 ,  G06Q10/08

    CPC classification number: G03H1/0011 ,  G06K7/1434 ,  G06Q10/0833 ,  G06V30/2247

    Abstract: Disclosed are a system and method to verify and authenticate an item. The system includes a memory and a processor. The processor includes a reader module, an optical character recognition (OCR) module, an image recognition module, a camera module, and an item digital passport (IDP) module. The reader module scans and processes a matrix barcode and other barcodes. The optical character recognition (OCR) module scans one or more of a micro size alphanumeric code, a nano size alphanumeric code, and a visible alphanumeric code present on a hologram that is embossed, printed, or lasered on the item and verifies the item by comparing the scanned data with the data corresponding to the item stored in the memory. The optical character recognition module authenticates the item if the scanned data matches with the data corresponding to the item stored in the memory. The optical character recognition module facilitates a user interface to display the comparison data and the authentication data. The image recognition module verifies and authenticates one or more of a micro size image, a nano size image, and a visible holographic image present on the hologram. The camera module analyzes the intricate details of one or more of the hologram features and elements, and a security print design features and elements captured by a camera lens. The camera module measures individual features and elements present in the hologram, and the security print design features and elements with an embedded ruler. The item digital passport (IDP) module captures data pertaining to the movement of the items from a source point to a destination point.

    Diffraction structure transfer foil and forgery prevention medium using same
    9.
    发明授权
    Diffraction structure transfer foil and forgery prevention medium using same 有权

    公开(公告)号：US09827804B2

    公开(公告)日：2017-11-28

    申请号：US15303197

    申请日：2015-05-13

    Applicant: TOPPAN PRINTING CO., LTD.

    Inventor： Hidetaka Ide

    IPC: B42D25/373 ,  B42D25/328 ,  G03H1/02 ,  B42D25/40 ,  B42D25/324 ,  G02B5/18

    CPC classification number: B42D25/328 ,  B42D25/324 ,  B42D25/40 ,  B42D25/47 ,  G02B5/1814 ,  G03H1/0011 ,  G03H1/02 ,  G03H1/0244 ,  G03H1/0252 ,  G03H1/0256 ,  G03H2001/2615 ,  G03H2250/10 ,  G03H2250/36 ,  G03H2250/40

    Abstract: Provided are diffraction structure transfer foil that further improves usefulness of the diffraction structure transfer foil in authenticity determination by allowing a greater variety of diffracted-light patterns to be observed, and a forgery prevention medium using the diffraction structure transfer foil. The diffraction structure transfer foil (21) includes a transfer foil substrate (1), a peeling-off protective layer (2) that is laminated on one surface of the transfer foil substrate (1), a laminated body for diffracted-light delivery (13a) that is laminated on the peeling-off protective layer (2), and an adhesive layer (9) that is laminated on the laminated body for diffracted-light delivery (13a). The laminated body for diffracted-light delivery (13a) includes a diffraction structure forming body in which a plurality of diffraction structures (4 and 7) are formed, and a reflective layer (5a or 8a) that is formed in accordance with each of the plurality of diffraction structures (4 and 7). A transmission density of one reflective layer (5a) of the plurality of reflective layers (5a and 8a) is in a range of 0.01 to 0.9, and a transmission density of the other reflective layer (8a) is 1.0 or greater.

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