# US 11,077,697 B2 · Security document and method for the authentication thereof > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,077,697 B2 - Document ID: US11077697B2 - Status: Granted - Kind: B2 - Application number: 16/081,506 - Filed: 2017-02-15 - Published: 2019-03-07 - Granted: 2021-08-03 - Earliest claimed: 2016-03-02 - Assignees: OVD Kinegram AG - Applicants: OVD Kinegram AG - Inventors: John Anthony Peters; Achim Hansen; Rene Schadler - Web page: https://patentgrep.com/patent/US11077697B2 ## CPC - B42D 25/305: Associated digital information (record carriers for use with machines and with at least a part designed to carry digital markings G06K19/00) - B42D 25/309: Photographs - B42D 25/313: Fingerprints - B42D 25/324: Reliefs - B42D 25/328: Diffraction gratings; Holograms - B42D 25/36: comprising special materials - B42D 25/369: Magnetised or magnetisable materials - B42D 25/373: Metallic materials - B42D 25/382: absorbing or reflecting infrared light - B42D 25/387: absorbing or reflecting ultraviolet light - G06K 19/025: {the material being flexible or adapted for folding, e.g. paper or paper-like materials used in luggage labels, identification tags, forms or identification documents carrying RFIDs (methods for testing the genuineness of valuable papers, e.g. banknotes or passports G07D7/00; constructional features of booklets and the like B42D)} - G06K 19/06009: {with optically detectable marking (G06K19/063, G06K19/08 take precedence)} - G06K 19/0727: {the arrangement being a circuit facilitating integration of the record carrier with a hand-held device such as a smart phone of PDA} - G07D 7/003: {using security elements (using digital security elements G07D7/004)} - G07D 7/004: using digital security elements, e.g. information coded on a magnetic thread or strip - G07D 7/01: Testing electronic circuits therein - B42D: BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS - G06K: GRAPHICAL DATA READING (image or video recognition or understanding G06V); PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS - G07D: HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING ## Abstract A security document with a first security element, which includes a first item of visually recognizable and in particular machine-readable information, and a second security element, which includes a second item of in particular machine-readable information which can be used to verify the first item of information. A method for the authentication thereof is also described. ## Claims ### Claim 1 A method for authenticating a security document with the following steps: reading a first item of visually recognizable and machine-readable information from a first security element; reading a second item of machine-readable information from a second security element; verifying the first item of information by reference to the second item of information wherein at least one of the reading steps comprises: capturing an image sequence or a video of the security document by recording the security document from different angles; and verifying a presence of an optically variable element or an optically variable security feature by verifying a desired optical change of the optically variable element or of the optically variable security feature in the captured image sequence or video. ### Claim 2 (depends on 1) The method according to claim 1, wherein the reading of the first or the second item of information or the verification of the first item of information is carried out by means of a hand-held device. ### Claim 3 (depends on 1) The method according to claim 1, wherein, before or during the reading of the first or the second item of information, instructions for capturing the individual image, the image sequence or the video are displayed on a display of the hand-held device, which comprise specifications with respect to a recording angle, or a recording distance. ### Claim 4 (depends on 1) The method according to claim 1, wherein, to verify the first item of information, a checksum of the first item of information is generated and compared with a reference checksum comprised by the second item of information. ### Claim 5 (depends on 4) The method according to claim 4, wherein a scan of a biometric feature is recorded by means of the hand-held device and compared with the feature stored in the first or the second item of information. ### Claim 6 (depends on 5) The method according to claim 5, wherein the scan is compressed or reduced into a template. ### Claim 7 (depends on 1) The method according to claim 1, wherein, to verify the first item of information, at least an encrypted part of the first item of information is decrypted by means of a key comprised by the second item of information. ### Claim 8 (depends on 1) The method according to claim 1, wherein, to verify the first item of information, the first item of information is compared with a redundant copy of the first item of information comprised by the second item of information. ### Claim 9 (depends on 1) The method according to claim 1, wherein a password comprised by the second item of information is used as access authentication for a program of the hand-held device or a database stored on the hand-held device or on a computing machine different from the hand-held device. ### Claim 10 (depends on 1) The method according to claim 1, wherein a third item of information is retrieved, by reference to the first or the second item of information, from a database stored on the hand-held device or on a computing machine different from the hand-held device or a third item of information is captured or recorded by the hand-held device. ### Claim 11 (depends on 10) The method according to claim 10, wherein the third item of information comprises a key or a part of a key for decoding the first item of information or, together with the second item of information, forms a key pair. ### Claim 12 (depends on 10) The method according to claim 10, wherein the third item of information comprises a checksum for the first or the second item of information. ### Claim 13 (depends on 10) The method according to claim 10, wherein the third item of information comprises a redundant reproduction of at least a part of the first item of information. ### Claim 14 (depends on 10) The method according to claim 10, wherein the third item of information comprises a password for database access or for access to an RFID chip. ### Claim 15 (depends on 10) The method according to claim 10, wherein the third item of information comprises an item of information about a reference state of a security feature of the first or the second security element. ### Claim 16 (depends on 15) The method according to claim 15, wherein, by reference to the third item of information, an individual image or an image sequence or a video is displayed on a display of the hand-held device, which demonstrate a reference state of a diffractive security feature of the first or the second security element. ### Claim 17 (depends on 16) The method according to claim 16, wherein the individual image or the image sequence or the video comprises a reproduction of the security feature from different viewing or illumination angles.