Contactless Electronic Microcircuit Document and Proximity Sensor

Document including a support (10) provided with at least a first portion (12) and a second portion (14) mobile relative to each other, the support including an electronic microcircuit (3) and contactless coupling means (2) electrically connected to said electronic microcircuit (3), and adapted to be coupled to an external reader station (5) to set up contactless communication with the latter station (5), characterized in that the support (10) further comprises detector means (20) adapted to detect the relative proximity of the first portion (12) and the second portion (14) independently of the contactless coupling means (2) and security means (30) connected to said detector means (20) and adapted to inhibit and/or to authorize activation of contactless communication as a function of said relative proximity of the first portion (12) and the second portion (14) detected in this way, the bearer of the document being protected from fraudulent reading by contactless communication when the two portions are superposed.

Electronic entity comprising a support (10) provided with at least a first portion (12) and a second portion (14) mobile relative to each other, the support including an electronic microcircuit (3) and contactless coupling means (2) electrically connected to said electronic microcircuit (3), and adapted to be coupled to an external reader station (5) to establish contactless communication with the latter station (5), characterized in that the support (10) further comprises detector means (20) adapted to detect the relative proximity of the first portion (12) and the second portion (14) independently of the contactless coupling means (2) and the security means (30) connected to said detector means (20) and adapted to inhibit and/or to authorize activation of contactless communication as a function of said relative proximity of the first portion (12) and the second portion (14) detected in this way, the bearer of the document being protected from fraudulent reading by contactless communication when the two portions are superposed.

Method of controlling exchange of information between a document and an external reader station, said document comprising a support (10) provided with at least a first portion (12) and a second portion (14) mobile relative to each other, the support including an electronic microcircuit (3) and contactless coupling means (2) electrically connected to said electronic microcircuit (3), and adapted to be coupled to an external reader station (5) to establish contactless communication with the latter station (5), characterized in that the support (10) is provided with proximity detector means for detecting the relative proximity of the first portion (12) and the second portion (14) and security means (30) connected to said proximity detector means (20), in that the relative proximity of the first portion (12) and the second portion (14) is detected independently of the contactless coupling means (2), and in that activation of contactless communication is inhibited and/or authorized as a function of said relative proximity of the first portion (12) and the second portion (14) detected in this way, the bearer of the document being protected from fraudulent reading by contactless communication when the two portions are superposed.