Gemalto Sa

Thales Dis France Sa

Pierre Gravez

Michel Thill

Francois-Xavier Marseille

François-Xavier Marseille

Matthieu Antoine

Philippe Guignard

The invention is aimed at optimizing the life of the power supply of mobile equipment with a radiofrequency communication interface by switching off the power to it when it reaches a given state. A mobile device () has a battery (), a radiofrequency circuit () allowing the mobile device () to exchange information with a host device (). The mobile device () comprises an electronic switch () connected between the battery () and at least the radiofrequency circuit (), where the switch makes it possible to supply power or not to the radiofrequency circuit. A power control circuit () is capable of controlling the electronic switch () so that it ceases to power the radiofrequency circuit as soon a break in communication is detected.

Mobile device with independent battery and radiofrequency communication interface

The present invention relates to a communication object comprising means for radiofrequency communication with a remote device, wherein said communication means are capable of establishing a first short-range communication and a second communication having a longer range than the first communication, said long range being enabled by Bluetooth or Wifi technology. The communication means use the same type of communication technology for the first and second communications. The invention also relates to a method for implementing the dual-range radiofrequency communication of the object.

Dual range radiofrequency communication object and method for implementing same

In order to allow a display of the latest transactions, a smart cardfor secure transactions comprises at least one secure chip, for example of the EMV type, with at least one communication interface to communicate with a card reader in order to carry out a transaction, an electronic display, an independent battery, a card reader circuitconnected to a communication interface of the secure chip in order to access the information contained in the secure chip to be able to display it on the display.

Bank card with display screen

To allow the display of the latest transactions completed, a smart cardcomprises at least one secure chipwith at least one communication interface in order to communicate with a card reader in order to carry out a transaction. The card further comprises an electronic display, an independent battery, and an interception circuitconnected to the at least one communication interface of the secure chip in order to be able to intercept at least one type of command and save at least one piece of information so as to be able to display it on the display.

The invention relates to a method for making a stack of memory circuits, wherein the method includes the step of testing the validity of at least two memory circuits. According to the invention, the method includes the phase of configuring each memory circuit, the configuration phase including the step of writing, within a configuration device of each memory circuit included in the stack, a piece of information on an identifier allocated to the memory circuit in the stack, and a piece of information on the results of the validity test of the memory circuit. The invention also relates to a method for addressing a memory circuit, to a stack of memory circuits, and to an electronic device including such a stack.

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Nogent-Sur-Marne, France

Pierre Gravez