Abstract:
A secured identification document has at least two flexible layers embedding an electronic module. The electronic module includes a flexible substrate on which are positioned an antenna and a radiofrequency microcontroller storing identification data. The radiofrequency microcontroller is electrically connected to said antenna. The secured identification document has the at least two flexible layers locally joined together by means of a chemically and mechanically tamper proof material that is applied in cavities that are distributed in each of said at least two flexible layers that surround the electronic module in order to make the electronic module interdependent with the at least two flexible layers.
Abstract:
Un documento que está adaptado para realizar una comunicación sin contacto a una longitud de onda de radiofrecuencia que consta de una cubierta (1), al menos una página interna (2-1, 2-2, 2-3), un microcontrolador de radiofrecuencia (3), una antena (4) conectada eléctricamente a dicho microcontrolador (3), y una pantalla electromagnética (6) capaz de interrumpir, al menos parcialmente, la comunicación sin contacto con dicho microcontrolador cuando el documento está cerrado, y que no interrumpe la comunicación sin contacto inalámbrica cuando el documento está abierto, caracterizado porque la pantalla (6) es una cuadrícula de alambre con una distancia media entre alambres de la malla de alambre menor que la longitud de onda de radiofrecuencia y el tamaño de la antena (4), siendo dicha pantalla implementada como una impresión de tinta magnética o tinta conductora.
Abstract:
The invention relates to a document comprising a cover (1), at least one internal page (2-1, 2-2, 2-3), a radiofrequency microcontroller (3) and an antenna (4) electrically connected to contact pads of said microcontroller (3). The invention is characterised in that said document further comprises an electromagnetic shield (6) capable of disrupting, at least partially, the wireless communication with said microcontroller when the document is closed. The invention applies, in particular, to an electronic passport.
Abstract:
A system and method for peer-to-peer communication between a slave device and network resources wherein the slave device, for example, a smart card, communicates using a protocol designed to allow the smart card to communicate over a half-duplex serial communications link while appearing to applications and network nodes as being a full-fledged network node in a manner that conserves power so as to be suitable for deployment on small portable devices.
Abstract:
The invention relates to a document comprising a cover (1), at least one internal page (2-1, 2-2, 2-3), a radiofrequency microcontroller (3) and an antenna (4) electrically connected to contact pads of said microcontroller (3). The invention is characterised in that said document further comprises an electromagnetic shield (6) capable of disrupting, at least partially, the wireless communication with said microcontroller when the document is closed. The invention applies, in particular, to an electronic passport.
Abstract:
In one form of the invention, a method for generating a local clock signal responsive to signals on a Universal Serial Bus ("USB") includes generating a frequency-bearing clock signal by a free running oscillator on an integrated circuitry chip of a device coupled to the USB. The oscillator runs at a frequency that is substantially stable but initially known with substantial inaccuracy. A single ended bit-serial signal is extracted from received signals sent by a USB host or hub and timing signals are responsively asserted. A bit pattern is detected in the single ended bit-serial signal and intervals are measured during which the timing signals are asserted. The period P of the local clock signal is adjusted responsive to one of the measured intervals. In one variant, the initial inaccuracy is at least partly because the oscillator consists solely of circuitry on the chip.
Abstract:
A system and method for peer-to-peer communication between a slave device and network resources wherein the slave device, for example, a smart card, communicates using a protocol designed to allow the smart card to communicate over a half-duplex serial communications link while appearing to applications and network nodes as being a full-fledged network node in a manner that conserves power so as to be suitable for deployment on small portable devices.
Abstract:
Method for packaging a number of data storage media (12) roughly in the shape of thin plates, characterised in that it includes the following steps: - each data storage medium (12) is successively brought between two layers (14A, 14B) of a first thermoplastic film (14) which has a sealing temperature T1; - the two layers (14A, 14B) of the first thermoplastic film (14) are successively sealed so as to form individual package for each data storage medium (12); - a batch of data storage media (12) so packed is stacked; and - the said batch of stacked data storage media (12) is packed using the second thermoplastic film (28) with a sealing temperature T2 less than T1.