Gemalto Sa

Thales Dis France Sa

Gemplus

Thales Dis France Sas

Jean-Paul Caruana

Gregory Capomaggio

Grégory Capomaggio

Christophe Buton

Frédérick Seban

Arek Buyukkalender

Pascal Leroy

Frédéric Martinez

Alain Guinet

Laurent Degauque

Stéphane Di-Vito

This invention relates to a method for provisioning a wireless control device with an information element allowing to identify visually at least one unauthorized user in a restricted area, the restricted area comprising a gateless control area being equipped with at least an image sensor and an electronic reader supporting a short range radio technology allowing to read data memorized into a wearable device carried by a user. The method comprises the steps of: providing by the image sensor a digital image of at least one user that is detected as passing through the gateless control area; extracting from the provided digital image of the detected user a first face detection dataset; providing by the electronic reader a second face detection dataset memorized in a wearable device carried by said detected user; applying facial recognition over the first and second face detection datasets in order to determine if the user associated to the first face detection dataset is the same as the one associated to the second face detection dataset, the detected user being identified as authorized in that case and identified as unauthorized otherwise; sending to a wireless control device a message comprising an information item adapted to ease the visual identification of an unauthorized user.

Method for provisioning a device with an information element allowing to identify unauthorized users in a restricted area

The invention relates to a method of communicating data with an electronic device, comprising the step of receiving signals conveyed by an electrical lead. The method is distinguished in that it comprises the following steps: fitting an RF radiofrequency interface with electrical terminals in the device, extracting signals from the electrical lead, and injecting signals resulting from the extracted signals, in the form of frames of radiofrequency signals in the RF interface with electrical terminals. The invention also relates to a radiofrequency communication device, a system comprising the device and a machine using the device.

Method and system for communicating data with an inaccessible electronic device

The present invention concerns a method of radio-frequency communication between a contactless transponder and a reader, in which at least one sideband of the carrier frequency is used for communicating a response from the transponder by modulation of the amplitude of this carrier frequency. The method is distinguished in that the modulation at least partly applies a modulation level greater than 100%, which causes a negative modulation. The invention also concerns a corresponding communication circuit.

Contactless communication method with negative modulation

The invention relates to a method of reading RF transponders disposed in one and the same magnetic interrogation field, in which a magnetic coupling of the transponders is ensured with a passive resonant circuit during reading. The method is distinguished in that the passive antenna of the resonant circuit is associated with at least one transponder antenna, and the passive resonant circuit is tuned in such a way that the resonant frequency resulting from the association corresponds to one of the frequencies of the emission side bands of the transponder to be read. The invention also relates to the system corresponding to the method, a transponder structure and an object containing the transponder, in particular a travel document.

Method and system for optimized reading of a radio frequency communication transponder with the aid of a passive resonant circuit

An activated contactless communication circuit includes a device for receiving and transmitting a data-carrying electromagnetic field; a first circuit resonating with a first antenna for receiving data; and a second circuit resonating with a second antenna for transmitting data, the first and second resonating circuits being separate from each other. The transmission is carried out at a frequency phase-synchronized with the frequency of the electromagnetic field for reception.

Method, circuit and contactless communication device with activated emitting

The invention relates to a method of communicating data with an electronic device, comprising the step of receiving signals conveyed by an electrical lead. The method is distinguished in that it comprises the following steps: fitting an RF radiofrequency interface with electrical contacts in the device, extracting signals from the electrical lead, and injecting signals resulting from the extracted signals, in the form of frames of radiofrequency signals in the RF interface with electrical contacts. The invention also relates to a radiofrequency communication device, a system comprising the device and a machine using the device.

A portable electronic devicecomprising a batterycoupled with an electronic circuit-through a switching circuitfor switching on or off the supply voltage Vcc to the electronic circuit using the battery. The portable device comprises at least one electromagnetic field detection circuitcoupled with the switching circuitto start the power supply to the electronic circuit-if an electromagnetic field is detected.

Portable object with self switching device

The invention is a method of power negotiation between a first contactless device and a second contactless device which provides an electromagnetic field set to a first power level. The method comprises the steps of: a) sending a request from the first device to the second device. The request targets a second power level and an associated duration. The next step is: b) sending a response to the first device. The response reflects a decision of the second device corresponding to the request. The final step is: c) switching the electromagnetic field to the second power level if the decision is positive.

Method of power negotiation between two contactless devices

A portable intelligent object has first and second communication interfaces with a station. The first communication interface can send and/or receive data by means of inductive coupling with the station. The object also has an integrated peripheral circuit. All of the data exchanged between the peripheral circuit and the central circuit passes through the station.

Inductive coupling exchange in a portable intelligent object with central and peripheral circuits

The invention relates to a method for reading electronic certificates positioned in a document, each certificate comprising a support bearing an antenna linked to a microcircuit. The document has sheets of a determined format articulated around a hinge. The antennas are dimensioned to a format less than that of a half-sheet. The certificates are arranged at most in pairs on a sheet so that the antennas are spaced apart along a longitudinal axis of the sheet. The invention also relates to a set of certificates and the document containing the certificates.

Method for optimized reading of certificates having radiofrequency transponders, set of suitable certificates and document containing the same

A method of demodulating signals of an electromagnetic field induced by a contactless transponder includes a step in which the signals from the transponder are detected at given times or frequency. The times or frequency of the detection are synchronized in phase with the electromagnetic field. An associated demodulator and reader are also disclosed.

Synchronous-phase contactless demodulation method, and associated demodulator and reader

The invention concerns a method for adjusting frequency tuning of a resonant circuit with turns having a regular spacing generating stray inter-turn capacity. The adjusting of the frequency tuning of the resonant circuit is performed, at the level of the stray inter-turn capacity, by varying the regular spacing of adjacent turns on at least one zone of the antenna. The invention uses this adjusting method for producing an adjusted antenna for a resonant circuit, the resonant circuit and a non-contact product. The invention concerns a device programmed for antenna production and/or definition.

Adjusting resonance frequency by adjusting distributed inter-turn capacity

An intelligent portable object has a dual interface and is equipped with a chip and is suitable for communicating with at least one electronic data transmission terminal via a contact interface according to standard ISO7816.3 and likewise without contact via a contactless interface and according to another contactless standard; a transition causing a variation of at least one status for the object. At least one information step, for example in real time, of the chip restituting variations in status, with at least a logical phase forming a supply controller, which ensure a configuration/information allowing a fully simultaneous functioning of applications resorting to the contact and/or contactless interface.

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Marseilles, France

Jean-Paul Caruana