Oberthur Technologies

Eray Innovation

Idemia France

Yves Eray

Jacques Venambre

Guy Enouf

Jean-Claude Huot

The invention concerns an RFID/NFC antenna circuit. An antenna (L) is formed by at least three turns (S), the antenna having a first end terminal (D) and a second end terminal (E), two access terminals () to connect a charge, a tuning capacitance (C, ZZ) for tuning at a prescribed tuning frequency, an intermediate tap (A) connected to the antenna (L) and distinct from terminals (D, E), a first connector (CONA) connecting the intermediate tap (A) to terminal (), a second connector (CONE) connecting end terminal (E) to the capacitance terminal (CE). A third connector (CON, CON) connects the capacitance terminal (CX) and the second access terminal () respectively to a first point (P) of the antenna (L) and to a second point (P) of the antenna (L) connected to the first point of the antenna (L) at least one turn (S) of the antenna (L).

RFID antenna circuit

The invention concerns an electronic entity comprising an electronic circuit and an antenna one part of which at least forms a conductive circuit connected to two ends of the electronic circuit. The projection of the circuit formed by the antenna and the electronic circuit in a plane which is substantially parallel thereto, forms an intersection-free line and the antenna includes a winding which extends over strictly more than one turn.

Electronic entity with magnetic antenna

An electronic entity () includes an electronic circuit () having connected thereto an antenna. The antenna includes a loop () electrically connected to the electronic circuit () and a resonator () coupled with the loop (). The resonator () can be capacitively coupled to the loop. The resonator can be formed from a turn facing the loop () over at least a portion of its perimeter.

A support () provided with at least first () and second () parts capable of displacing relative to one another along a selected axis of displacement (), and a contactless electronic device () mounted in the first part () of the support and including an electronic microcircuit () and an antenna () electrically connected to the electronic microcircuit (), and capable of being (electro)magnetically coupled with an external reading station (), the electronic microcircuit () being capable of exchanging information with the outside. The second part () is provided with electromagnetic coupling attenuating elements, having a resonator circuit () coupled to the antenna (), and situated in line with the antenna () when the first and second parts are essentially superimposed one above the other, and are capable of rendering the exchange of information with the outside inoperative or operative according to the distance between the first and second parts.

Document having an integrated contactless resonator electronic device

The invention relates to a flexible data support, comprising a support with at least first and second sheets (A,B,C) which can pivot relative to each other about an axis (P) along the edges of said sheets and a contactless chip housed in said support and comprising an electronic circuit (IC) and coupling elements (A, A) connected to said electronic circuit distributed about the first and second sheets which may be electromagnetically coupled to an external reading station. The electronic circuit comprises an information exchange section for exchange of information with the exterior, characterised in that said support is provided with a test device for verification by means of signals emitted by the coupling elements of a geometrical condition of the angular configuration of the first and second sheets and to generate, as function of the result of said test, a signal authorizing or preventing the activation of the exchange section of the electronic circuit.

Foldable data support with a contactless chip such as a passport

An electronic entity includes an electronic circuit () having at least one first terminal () and a second terminal () to which an antenna is connected. The antenna includes a conducting element () electrically connected to the first terminal () of the electronic circuit () and includes a resonator () insulated from the conducting element () at the antenna, electrically connected to the second terminal () of the electronic circuit () and coupled to the conducting element ().

Growing community of inventors

Ouistreham, France

Yves Eray