US 12,403,715 B2
Security device for securing an article such as a passport
Taru Syrjanen, Vantaa (FI); Kristian Lappalainen, Espoo (FI); Kai Makinen, Vantaa (FI); and Daniel Wadell, Blaine, MN (US)
Assigned to THALES DIS FRANCE SAS, Meudon (FR)
Appl. No. 18/702,352
Filed by THALES DIS FRANCE SAS, Meudon (FR)
PCT Filed Oct. 21, 2022, PCT No. PCT/EP2022/079370
§ 371(c)(1), (2) Date Apr. 18, 2024,
PCT Pub. No. WO2023/067136, PCT Pub. Date Apr. 27, 2023.
Claims priority of application No. 21306472 (EP), filed on Oct. 22, 2021.
Prior Publication US 2024/0399780 A1, Dec. 5, 2024
Int. Cl. B42D 25/24 (2014.01); B42D 25/373 (2014.01); G06K 19/07 (2006.01)
CPC B42D 25/24 (2014.10) [B42D 25/373 (2014.10); G06K 19/0724 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A security device (1) for securing a substrate (2) against manipulation, the security device (1) comprising:
at least one connection device (3), and
at least one output device (4),
wherein the security device (1) is configured to be connected to the substrate (2) via the connection device (3),
wherein the output device (4) is configured to emit at least one output signal,
wherein the connection device (3) and the output device (4) are configured to be coupled to one another,
wherein the security device (1) is configured such, that the output signal is outputted to an outside of the security device (1) when the connection device (3) and the output device (4) are coupled to one another,
wherein a change in the coupling between the connection device (3) and the output device (4) results in a change in the output signal or in an absence of the output signal,
wherein the change in the output signal or the absence of the output signal is indicative of a manipulation of the security device (1) and/or of the substrate (2),
wherein the output device (4) has a capacitance and the connection device (3) has an inductance, and wherein the capacitance of the output device (4) and the inductance of the connection device (3) are configured to form a resonance circuit in a ultra high frequency range, and
wherein the security device (1) is configured such that the manipulation of the security device (1) or the substrate (2) tunes an impedance of the output device (4) out of the frequency, whereby the output signal is changed or absent.