EP2494721A1

EP2494721A1 - Radiofrequency communication controlled by a microcircuit

Info

Publication number: EP2494721A1
Application number: EP10768245A
Authority: EP
Inventors: Pascal Leroy; Joseph Leibenguth
Original assignee: Gemalto SA
Current assignee: Thales DIS France SA
Priority date: 2009-10-29
Filing date: 2010-10-22
Publication date: 2012-09-05
Also published as: WO2011051193A1; EP2317673A1; US20120222131A1; US9172480B2

Abstract

The invention relates to a method for the radiofrequency communication of data, in which the receiving of and/or access to said data is controlled by control means, including an electronic microcircuit, on the basis of access rights. The method is characterized in that the transmitted data includes time information (IT), and in that the access rights (Da) are controlled on the basis of said time information. The invention also relates to a device for controlling access rights as well as to a radiofrequency receiving device including same.

Description

Radio frequency communication controlled by microcircuit

The present invention relates to a method, system and device for controlling the radiofrequency reception of data flow by microcircuit.

More particularly, it relates to radiofrequency reception devices comprising microcircuit reception control means, including a chip card with rights of use. The data streams are broadcast, preferably broadcast, to a set of devices with usage rights.

Patent application EP1627347 describes a radio controlled by smart card; The associated card includes data stored in the chip that is re fl ected with freq u ces and d u rees de fon ction (authorized operating time). The system consisting of the reader and associated card, is intended to be used for sporting, cultural, religious or other events and to provide information and entertainment users. The radio can not operate without the smart card inserted in the reader and selects the frequencies programmed for the predefined purpose.

The current system suffers from a number of limitations; It is only able to decrement the running time. As soon as the smart card is inserted into the device (reader / card radio), the right frequency is activated and if operational, the duration of the operation is decremented. The device does not differentiate between the card's presence time in the omission reader and the normal usage time of the device during the event. The device does not have usage values adapted to the current needs identified by the inventor in terms of communication or connectivity features. In particular, he is not able to select automatically the most appropriate frequency if multiple frequencies are programmed. On the other hand, the device may decrement rights while the reception conditions are not optimal or the reception location or the time inappropriate. The user then has the impression of not having obtained the good service and having been debited unfairly.

The invention intends to solve all these disadvantages. The invention also aims to provide other features or applications corresponding to user needs felt.

The invention consists in particular in the arrangement in the chip card and / or the reader of reception means of the RDS type, for receiving data comprising time, time and / or event information indicators and exploit this information in the device more effectively or just or wisely. Preferably, the device makes it possible to receive additional information. This additional information may be collected elsewhere at other times or on the spot and / or other interfaces.

The exploitation of this information may be for different purposes. In particular, it makes it possible to avoid law counting errors by means of an internal diagnosis of the listening conditions such as the place, the moment or the object of remission.

For this purpose, the invention includes a method of radio frequency data communication, in which the reception and / or access to these data is controlled by control means comprising an electronic microcircuit according to the rights of the user. 'access;

The method is distinguished in that the transmitted data comprise temporal information and / or an event, and in that the access rights are controlled according to this time information.

According to other characteristics of the process: - It includes a step of loading complementary information related to the data to be received;

- The loading of complementary information is done by a short or medium range interface;

- The additional information includes an indication of the location of a place of loading and / or an indication of frequency so as to receive data relating to the place;

- Complementary information loaded includes a map of the place;

- The additional information loaded includes bonus points, gratuities or equivalent and / or triggers other access rights;

- The control includes the implementation of at least one step or program of verification of the conditions of the reception by a test of adequacy between them, certain parameters relating to data to be received, in particular, the schedule, the place, frequency;

- The control then triggers an error message following the diagnosis allowing the user to place himself in optimal reception conditions. In particular, the control implements a step of automatically anticipating the schedule of the show to which a user has subscribed to prevent it in advance of an appropriate message or alert. If necessary, coupled with a GPS system, the device can calculate the route and the time required to attend the event in time; this may require a display in / on the radio player and may relate to tourist guidance applications. - If applicable, the device coupled to a GPS system calculates the presence location and issues an error message in case the detected location is wrong with respect to the location of the event or optimized reception of a frequency.

The invention also relates to a radio frequency data reception control device comprising means for controlling the reception and / or access to these data as a function of access rights, said control means comprising an electronic microcircuit; The control device is distinguished in that the data to be monitored include temporal information and / or event-related information, and in that said means for controlling the access rights allow access to the data by a user by referring to to this temporal information.

It also relates to a system or device for receiving radio frequency data comprising the above control device and / or capable of implementing the aforementioned method. Other features and advantages of the invention will become apparent on reading the description, given by way of nonlimiting example and with reference to the appended drawings in which:

FIG. 1 illustrates a radiofrequency transmission / reception system for data according to a general mode of the invention;

FIGS. 2 and 3 illustrate temporal and event information conveyed in the data stream transmitted by a transmitting terminal and intended for the devices according to the invention;

FIG. 4 illustrates steps of a radio frequency data reception method according to an implementation mode of the invention.

FIG. 5 illustrates a step 130bis, alternative or additional to step 130 in relation to the preceding figure, of another mode of implementation of the invention.

FIG. 6 illustrates a loading of applications in the microcircuit 7 of a smart card 7a, in particular a test or diagnostic application P3 or an access right Da.

In FIG. 1, the invention provides an infusion radio system S1 comprising one or more radiofrequency transmitter (s) E1, E2 and one or more radio frequency reception device (s) SCR; The system here is an RDS type system as described more fully below. Where applicable, any radio or television broadcasting system capable of conveying temporal or event data to a set of receivers may be suitable for solving the problem. The system preferably relates to data defusion systems to a set of receivers but may relate to the telephone system intended for a single subscriber, particularly for the implementation of step 130bis.

For the moment the device in the example is analog and the only possible digital data would be on the RDS signal. RDS does not exist in the digital world. With RDS, it will be difficult to pass data type audio or video, because the flow is not important enough.

However, the use of a digital carrier, as in Sirius XM Radio digital radio in the USA, could also convey time and event information, card numbers or subscriber names to invalidate, in particular to cause a stoppage of service for lack of payment of the subscription. But also in a more positive way, participation in an event and / or active listening detected, could lead to the writing in the loyalty point card.

The data is transmitted by radiofrequency waves and picked up by the receiver according to the invention. The data includes in the example any type of data or stream of audio data, video .... In the example, the data include a live sports audio broadcast or a conference in several languages. Each receiver SCR comprises, as is known, radio-frequency data reception means 5, here comprising in the example a chip (RDS) comprising an RDS functionality and means for controlling the reception and / or rights of access to these data. data 6, 7, 7a. These control means comprise in the example, an integrated circuit chip 7 such as a smart card chip 7a. These control means may comprise a microcontroller (C, 6) for managing in particular the interfaces and peripherals. The RDS chip can be connected preferably to the microcontroller (C, 6) and / or to the integrated circuit chip 7. The chip 7 may be on a removable portable medium, such as a card, connected to the SCR device or permanently attached to a PCB of the SCR device. According to one embodiment, the complete stream of data broadcast by radio channel conforming to a specific format and protocol can preferably pass from the radio chip to the interface chip.

The radio broadcasting system will transmit an audio stream in analogue or digital form and if necessary (for an analogue broadcast) use the digital RDS channel to transmit specific digital data to the event or to the cardholder. These digital data are captured by the radio chip and transmitted by the radio chip to the chip (smart card type) to be interpreted. The chip (type smart card) in return will control the radio chip on the correct reception frequency and update the rights of the wearer.

The microcontroller 6 (C) in the example manages the exchanges between the RDS chip and the chip 7 rights control via suitable interfaces. In the example, the RDS radio chip is connected by a serial link or I2C to an interface chip or IC chip interface controller 7. For example, ON and OFF signals (OFF) ) respectively for the sound and the frequency to be selected if ON, standard exchange signals, are exchanged from the interface chip 6 to the RDS radio chip; The smart card 7a (or integrated circuit chip 7) will then consider data captured by the RDS chip including the frequency, location, time, with if any other criteria obtained by him leu rs (local isation, identifiers, additional rights earned, correct answers to a game ...) and decide on the action, thus achieving an intelligent and improved total control of the RDS radio. Devices or interfaces of known type as hereinafter can be provided separately, cumulatively or in different possible combinations. Thus, the device may include one or more ISO 781 6 and / or USB interfaces with a smart card chip, an NFC chip, an audio interface, a microphone, a speaker, an audio headphone connector. io or ore l lette, a display or e nvid eo tactile or not, a graphic microcontroller, a keypad touch or not, any interface or known type of means necessary to achieve a man-machine type interface (HMI) .

Alternatively, a chip or a PCMCIA or "Express Card" type card, USB stick or other card, object having means for storing access rights, preferably secured, can be envisaged by the invention. According to one embodiment of the invention, the system S1 provides one or more transmitting means and / or relay E1, E2 adapted to insert or mix IT time information and / or information relating to an event IE, in the flow of distributed data (F1, F2 in FIGS. 2, 3) or any other information intended to be exploited / processed by the chip, in particular to establish a diagnosis and to take action accordingly, in particular to count the rights.

On the other hand, the SCR device provides that the means for controlling the reception, access rights or access to these data, mentioned above, allow access and / or reception of data depending of this temporal information and / or in the event of an event received. The temporal information can be, for example, the time, the date.

For temporal information, the invention preferably uses the function CT or the PS function described below and specific to the RDS system for passing information to the receiver allowing it, for example, to adjust an internal clock. The clock may be that of the SCR reader device or, if applicable, that of the smart card control chip.

The refresh of the clock may occur regularly from the RDS device, it will be possible for either the SCR chip or chip chip to have a more or less accurate clock; This allows somehow a recovery clock (DDS) recovery by the RDS and the internal clock of the SCR device with the chip (smart card) does not need to be very accurate. Where appropriate, the data may be broadcast at different frequencies and a frequency tracking AF function described below may be implemented by the device.

RDS service functionalities used together or not by the invention according to an exemplary embodiment:

PS (Program Service): It allows the display of the name of the received station on a screen of a device. This service can be hijacked to convey dynamic information.

- CT (dock time): it allows the transmission of the time, and thus the setting of the clock of the receiver. In principle, the clock is radio controlled on the DCF77 transmitter in Frankfurt, Germany);

- AF (Alternative Frequencies): the transmitters broadcast the list of frequencies of neighboring transmitters of the same station. The car radios can thus at any time seek the best available frequency. This is how you can listen to the same station from one end of the country to the other without changing the frequency manually (the frequencies are "downloaded" into the RAM of the car radio);

- RT (Rad io Text): this service allows the deffusion of texts via the RDS. The texts in question can then be displayed on demand on the receivers screen; - PI (Program Indentification): the PI code is a unique code assigned to each radio, which allows the receivers to identify it for sure;

In other uses, the RDS system can transmit other types of information, such as service data specific to each radio, or even images.

According to one possible implementation, a suitable digital data stream is captured by the RDS functionality of the RDS radio chip (5); The radio chip 5 then communicates to the microcontroller 6 these data which are relayed at least in part to the smart card chip 7, the microcontroller serving as an interface chip with the so-called control chip 7 or security. The microcontroller communicates with the chip 7 via a physical and / or logical interface 8 of the ISO 7816 type. These are at least the data useful to the chip 7 for establishing the control which are relayed to the chip 7. For this, the useful information can be extracted by the microcontroller 6 and transmitted to the chip 7 while the data relating to the audio / video transmission are for example stored in buffer memory, the time to do the processing by the chip 7. Where appropriate, the broadcast broadcast is partial, the card having a complementary part; In order to be understandable by the user or to be complete, the device uses the complementary part of the program pre-stored in the chip or memory attachment during listening or access by the user, for example the soundtrack of a video show. This arrangement makes it possible to have an encrypted pseudo broadcast: for example, with jumping at a different frequency in a random manner on a time basis; the RDS system informs the jump at T0 + x seconds to allow the frequency to be changed automatically at the right moment. The integrated circuit chip 7 comprises control means capable of subsequently performing verification and / or rights management (Da); The chip comprises, for example, conventionally a microcontroller and volatile and non-volatile memories. Rights may be of different natures. In the example, they allow in particular access to a sporting stage, to listen to a specific frequency content, check the validity of the card, choose the most appropriate frequency, etc.). The rights' Da) can be in the form of units in a counter or equivalent.

The control chip 7 also comprises test means (P1, P2, P3,... Pn) which also makes it possible to avoid counting smart card units if no frequency is available or if the reader does not is not used in the appropriate area or if the reader and card are not used for events and / or in a corresponding time and / or calendar slot.

Corresponding tables stored in the chip and indications provided by the device allow the chip to trigger or not an authorization signal. Tables of fees or tariffs depending on the schedule may be provided. No available frequency signals can be transmitted by the RDS chip to the microcontroller 6 and then to the control chip. This avoids a countdown for example if the selected frequency is not available or of poor quality.

Likewise, the control chip can deduce an erroneous location so as not to deduce from an iteration. For example, the device receives many frequencies but the conference room is not the right one. Localization information may be captured by the control chip in particular by interaction with a local transmitter, for example a tag (electronic tag), a contactless terminal, a reader placed in a destination intended for reception. For example, the control chip establishes a test or diagnostic to verify that all the unit counting conditions are met and proceeds to the authorization and / or settlement. For this purpose, the chip 7 may comprise in an EEPROM or flash at least one adapted test program P1, Pn which is executed by the microcontroller of the chip 6 at the appropriate time. The chip 7 may comprise means (Pn) capable of allowing audience monitoring (fidelity), aggregation of the data and, where appropriate, potential exploitation of data when the smart card and / or the device is connected to a server. or an external player. Indeed, the chip stores usage histories (or traces) that are recorded in whole or in part during these connections with a reader or external server connected to a center of exploitation of these histories.

The device may also include means capable of still allowing traceability, geolocation or at least a smart card control of participation or not in a specific event such as games and loyalty programs.

For example, the card comprises means for storing data relating to the hearing and / or frequency times used, and / or actuation locations. For example, a location is stored in the chip 7 in particular by interaction with a local terminal including a location trace (identifier and / or a location name). This trace can be communicated to the device by a local contactless terminal and transmitted to the chip 7 for storage in a place of attendance memory with possibly the corresponding schedules and date.

Conversely, these traces or data can be found in particular by interaction with any reader connected or not networked with a data exploitation server. For example, the interaction with a terminal in a listening location takes an identifier of the device which is then sent to a center or operating server for analysis. If necessary, the device includes a GSM modem function, GPRS and data are sent directly by the device to a central server operating these records or history.

Alternatively, the smart card 7 takes the function of a SIM card or annex card and can also be moved in a mobile phone for example, or other reader and the statements can be taken on this occasion by an interaction or connection with a server via the mobile telecommunication network. Thus with these means described above and in particular the new functionalities of the smart card and the device, the invention responds to the aforementioned problems. It is also understood that by cleverly combining an RDS function in the device, the invention makes it possible to broadcast information based on certain events such as the name of the event, the date and time of the event, the date and time realities cited in a nonlimiting manner.

The radio chip then communicates this data to the smart card chip, providing the smart card with all relevant information to control the rights and the instant of listening. If necessary, the controller 6 itself ensures or integrates the function of the chip 7 or vice versa.

Today, in one example, a radio chip is used which is controlled by a smart card chip via an interface chip that knows how to communicate ISO. The card is always a slave of a microcontroller which is the arbiter of the SCR device for all the functions: control of the radio chip, the RDS chip, the USB, the HMIs (display, buttons, keyboards ...) .

Additional hardware and / or software architecture: The invention may preferably include dual interface functionality. It can be performed, in known manner, either by a dual interface smart card (the antenna being made in the card), or by a microcircuit integrated dual ISO / RF interface placed in the card and connected to an RF antenna (13) included in the device or connected to it, via in particular contacts C4, C8 (not shown) of a terminal block electrical contact pads ISO 7816 standard smart card, connected to the corresponding connector of the device.

The dual interface features basically allow for standard access control and contactless payments as for any dual interface smart card. Advantageously, this function also allows geolocation during an exchange with a reader or terminal whose location is known.

The location can be communicated by the reader to the device via the contactless interface; Conversely, the reader may collect an identifier of the device and / or the contactless smart card. This identifier can be communicated later to a central server for route tracking, statistics. Indeed, for a treasure hunt, for example, the user will be asked to place his badge on the contactless reader using either the smart card or the SCR device; double traceability can result; the one stored in the card and the one stored on the central server.

The terminal communicates, (in particular by contactless communication), location information or information allowing the device to locate; For example, by means of a list or correspondence database stored in internal memory, the correspondence is performed by searching an entry of a data table that outputs a location; By following, from the detected location, a corresponding appropriate frequency can be triggered or automatically selected by the device. Alternatively, the device may comprise means for selecting or entering a location, a code representative of a location (keyboard, any UI) usable directly by the user or other authorized person.

In addition, geolocation can allow automatic triggering of the right frequency to listen to a program, follow-up of a game, knowledge of advertising at a point of sale or issue an advertisement at good place or check the route of a user. This can be particularly interesting in a museum, a treasure hunt (treasure hunt or orienteering) and during a convention during which events or conferences in different languages take place in different spaces ( radio being useful for translations).

The device may comprise a USB connector (10), preferably a type B connector. The connector may be connected to the ISO7816 contacts of the smart card via an active USB / ISO interface or directly to the C6 & C8 pads of a USB card. e-Gate type; Thus, the SCR device becomes a real smart card reader connectable to any USB master device. This allows the user to connect his card associated with the player to the computer and the Internet and to load particular information, user rights or subscriptions. The device can provide means for selecting the exchanges between a computer 1 1, the chip 7 and the microcontroller 6.

Alternatively, the device may include a mobile phone module for a direct internet connection. Where appropriate, the chip may include a subscription subscription to the telecommunication network.

The SCR device may include an NFC interface or feature (12, with antenna 13) to enable not only contactless smart card emulation but also as a contactless reader. The N FC reader makes it possible to read any radiofrequency label or radio frequency transponder arranged in particular on posters or tickets or brochures, some rights or units can be transferred into the smart card chip and thus benefit from promotions promotions, etc.

The NFC function allows exchanges between two SCR readers equipped with human / machine interface means. The NFC feature can also enhance gaming sessions as for the dual interface function. The NFC chip can reside in the smart card module (hybrid module) and powered by batteries, battery; Alternatively, the NFC chip can be housed in the SCR reader and addressed by smart card via SWP connection. The antenna can be either located in the smart card or in the SCR reader.

If necessary, the device may include a Bluetooth interface 15; this allows it to perform functions similar to an NFC interface (location, collection of information ...) or to communicate with the computer 1 1.

The method is now described with reference to FIG. 4, which shows steps of an exemplary implementation and means of the device illustrated in FIG. In step 100, the method comprises a step of receiving data and then controlling the reception of data and / or access to this data to enable or authorize a carrier of the device, to access these broadcast data. In the preferred example, step 100 is performed using means for controlling the access rights to this data as explained later. These means comprise for example an integrated circuit chip 7. The chip 7 can be housed directly in the radio receiver or contained in a smart card or associated module in relation to the receiver.

According to one characteristic of the invention, the received data comprise time and / or event-related information that is used to manage an access rights control. More precisely, the control is carried out according to this information. In the example, the time information is information comprising the local exact time that is conveyed among the data broadcast by the RDS system. FIG. 2 illustrates a data field intended to contain a time information IT among a stream of data transmitted then received.

In step 1 10, the information is extracted from the data stream by the receiver means RDS and then communicated to a microcontroller 6 in the chip 7 to update time counting means, in particular a duration counter associated with a internal or external clock. Where appropriate, pulses are emitted from the RDS receiver to the chip or from an emitter E1 to the chip 7 through the receiver; then a count of units is done in the chip at each heartbeat or period. This can be a simple way to count down units or the time remaining.

The card contains, for example, a subscription corresponding to a given number of hours of authorized reception. Rather than putting into operation an internal counter of the card as soon as it is turned on, in the receiver (or reader) as in the prior art, time or duration information is transmitted to the card in step 1 10, in order to perform the counting according to this information in step 140. If, for example, a transmission is transmitted from 18:00 to 19:00, the internal clock or a counter of the card is updated, in particular before or during transmission; Access rights corresponding to one hour of listening will then be counted precisely by a credit of duration.

Alternatively, the invention can provide for counting the power-up time only during a time slot corresponding to a broadcast period. Alternatively also, IT information indicating the start time and end time can be transmitted to the card that performs the count itself by difference. Two distinct applications are imagined: the pay-for-use pay-per-use system where the user can consume as much as he likes up to a limit of a paid package and an annual subscription or he can consume as much as he can wish but for a given season, a given period.

According to another mode of implementation, the information may correspond to an event IE (FIG. 3); it can be any signal representative of a beginning of the emission (a beep, a code). The IE information may be transmitted repeatedly or periodically to indicate to the card what to count against these events. The event may represent a period beep or the name of a show related to any event, sports, theater, concert, event name, etc.

The subscription or rights of a user can consist of a credit of any number of events.

Alternatively, the reception of an event can trigger a clock and associated counter in the chip 7, especially during the period of remission at most. Thus, at the end of the show, an omission of the card in the reader does not decrement the credit held by a holder.

If necessary, the method in the example may include a step P1 of testing 130 to verify that the remaining rights are greater than a minimum duty. For example, the test verifies if there is 5 minutes left, one hour of listening or the duration of the emission to, if necessary to count in advance this corresponding right. The entitlement can also be deducted at the end of the complete data reception.

As an alternative to step 130a, the chip performs a test or diagnosis provided by a program P3 making it possible to select or authorize or verify the smooth running of a reception. As mentioned previously, the card makes it possible to avoid handling errors, error in the space in which the wearer is located, error of adequacy of parameters between them between the place and / or the frequency and / or schedule and / or event necessary for good reception of a program.

In one example, the chip performs a comparison with a selection information of a frequency loaded by a terminal, and then location information transmitted by another local tag, in particular in a listening room or projection, conference, and control the schedule for receiving or conducting an event. The countdown takes place if the reception is done at the correct time or time and in the right room. Thus, the device receives several parameters such as time information via an RDS channel, then a location information via an NFC or Bluetooth or other channel and, if necessary, information concerning the name of the event. If the three pieces of information are in adequacy following one or more tests of the program P3 then, the counting can take place. A test step of P3 may consist in comparing the three parameters with respect to rights data relating to the event stored in memory. For example, fees may include 10 hours of listening time to attend 15 lectures in 5 predetermined room numbers. Thus, the invention makes it possible to protect the user against an inconvenient settlement or that it is not carried out wisely. It offers u no guarantee to the user against an error, an omission, a misuse the use of the device.

This mainly helps to avoid forgetting the card in the reader at the end of the event and thus see its counted iterations and the batteries of the SCR device discharged. This also prevents the user's children playing with the SCR from releasing it or consuming units.

An ON / OFF switch can prevent an unintended consumption situation (units and batteries) if the card remains inserted. On the other hand, the guarantee intervenes in particular when the reception of the signal does not correspond to the event in question. A spon sor of the event can be listened to "Free" out of the event period, but will see one counted during the event. Similarly, we can have a listening period in clear and coded. At the end of the RDS broadcast, end-of-transmission IE information can be transmitted to the device to be interpreted by the card as information to disable the speakers and / or to stop a pte decompression. Alternatively, the card has a duration and sends a deactivation command to the microcontroller 6 at the end of the duration.

In step 1 50, the method includes an activation / authorization of listening (or other access to data). In one example, the card can transmit an activation signal in particular to the controller of the device, or the RDS chip to activate the speakers (or a visual device interface with the user).

On the other hand, according to an advantageous characteristic, the method may comprise a step of loading complementary information (s) (ICn) with respect to the data to be received. The information may, for example, include an indication of frequency for the reception of the data, a set of data complementary to the data to be received (itinerary, plan, rules of a game, bonuses, questions, subroutine, part of code, soundtrack, color code, etc.). The application provided by the invention consists in having information, which is notably loaded into a smart card or loaded via an external terminal, read on an electronic tag (tag) or provided by an external reader or terminal. . The information can be transmitted by a mobile phone including NFC, Bluetooth via means 13 or 15.

The information may be available in bar code form or the like, and read by a suitable optical system. Preferably, information is loaded via a short or medium-range interface, for example of the NFC, Bluetooth, etc. type. For this purpose, the radio receiver comprises a corresponding additional hardware and hardware interface or corresponding communication means.

In the example, in a museum, a user approaches his device with a radiofrequency transmitter means 16 according to ISO 14443 or 15 ... of a transmitting point 17 of the information (Conference 1) comprising for example a poster , a panel, or equivalent, provided with one or more tags 16, 17 each corresponding to a language (GB, FR) and reception frequency.

The information here is a frequency (or frequency-related code) for listening to a conference 1 in English (GB), loaded by the device and used to block the radio on it so as to receive comments about the associated location. to information. The complementary information may also be a decryption key for decrypting the received data. It is preferable to use digital data (mTV equivalent) data with a smart card serving as a decoder with a digital radio.

By cons against the received data, key type, could be used during a connection to a website for example, to unlock secure access, and only accessible to auditors present at the event. For example access to photos taken during the event and which are encrypted or altered by a marking. Complementary information may pass through. It may be possible to integrate the complementary information (ICn) in a test or diagnosis (Pn), if necessary with other control parameters, to allow access to received data to be granted or not emission or adequate frequency.

In a conference application, tags are associated with different languages, the user approaches his reader of the tag corresponding to the translation into a language he wants to hear and a frequency is loaded into the radio receiver and / or smart card. The loaded frequency is used to adjust the radio to receive the correct translation. Alternatively, instead of loading a frequency, the invention provides for directly loading the content of the transmission, in particular in the chip 7 or storage means (SD memory card, flash ...) controlled by the chip 7. The loading can be local on the moment or deferred notably by internet or via any terminal. According to one feature or application of the invention, the complementary information may comprise a location indication (IC1) of charging and a frequency indication (IC2), so as to receive data relating to the place.

The information loaded may include a map of the area. Thus, in the example, a user receives a map of a fair or lounge, a city, a supermarket, a shopping center, and a location of data uploads in the location. Preferably, the example here relates to a digital SCR receiver device with HMI and display means. The user can locate the loading points on the map and go to these points to download additional data including a frequency or means (key, code ...) via for example an NFC communication. In turn, this collected data can be used to access a program.

The application provided by the invention consists in particular of a treasure hunt or route to be followed by a user, to discover stands of a fair, exhibition, a course arrow, a rally, etc. At each point indicated, the user loads other data and / or captures a frequency of radius of action limited to the place. The loaded data can be images and data received by radio, comments on photos, loaded images. Preferably, the example here relates to a digital SCR receiver device with HMI and display means.

According to another application, a user searches for a point in a shopping center; At the entrance of the center, a terminal loads a map of the shopping center or a map of the shelves and products for sale, as well as a list.

By selecting the reference of the product sought in the list (or typing its reference on a keyboard), the receiver can indicate on the map the location of the product and an indication of course relative to the location of the user.

If necessary, a local radio guidance system detects the position and direction of the receiver (including using a transmitter included in the radio receiver) and an audio or video guided route is established to the product. The local system of radio guidance guides the user notably in the manner of a GPS system. One or more radio transmitters are used to locate the user in particular by triangulation. Preferably, the example here relates to a digital SCR receiver device with HMI and display means. According to another feature or application of the invention, the information loaded may include bonus points, bonuses or equivalent and / or triggers other access rights. In the example, a user goes to different places according to a predefined route; the route may for example include information on new products or services that we wish to bring to the attention of a user.

To encourage people to visit these different places, an electronic tag or terminal is installed at each location. Then this terminal loads additional information (ICn), including bonuses and / or an indication of the location of a next terminal. This terminal may emit particular rights for access to a radio frequency to receive other essential information. At least one software application among P1, P2 or P3, is provided in the microcircuit 7, and may relate to a treasure hunt or advertising route including control apartment visits, etc.

For the loading of complementary information (ICn), the invention can provide any communication interface and in particular a USB interface or connector. The connector allows the user to download especially on a network such as the internet or commercial site additional data (ICn), access rights, software, decryption keys and so on. The USB connector also reads a smart card chip included in the radio receiver. It allows you to download rights online such as a subscription, or reload points in the card or in a security chip storing these rights. In one application, the device of the invention comprises a radio modem and an interface including USB type or "PCMCIA Express Card" with a display or screen or audio system and / or video.

Thus, thanks to the invention, rights are counted more reliably, without risk for the user to count more than necessary.

In an ultimate variant, all or part of the functions of the SCR device, including the RDS reception functions or RF, NFC or Bluetooth interface, are integrated in the smart card 7a or equivalent.

Claims

1. A method of radiofrequency communication of data, wherein the reception and / or access to these data is controlled by control means comprising an electronic microcircuit according to rights of access,

It is characterized in that the transmitted data comprise temporal information (IT) and in that the access rights (Da) are controlled according to this temporal information.

2. Method according to the preceding claim, characterized in that it comprises a step of loading complementary information (IC1, IC2, ... ICn) related to the data to be received.

3. Method according to the preceding claim, characterized in that the loading of complementary information is performed by a short or medium-range interface (13).

4. Method according to one of claims 1 to 2, characterized in that the complementary information (ICn) comprises an indication of frequency of receipt of the data.

5. Method according to the preceding claim, characterized in that the complementary information comprises an indication of location of a place of loading and / or a frequency indication (IC2) so as to receive data relating to the place.

6. Method according to the preceding claim ication, characterized in that the complementary information (ICn) loaded comprises a plan of the place.

7. Method according to any one of claims 2 to 5, characterized in that the complementary information (ICn) loaded includes bonus points, gratuities or equivalent and / or triggers other access rights.

8. Method according to the preceding claim, characterized in that the loading of information is performed by USB interface.

9. Method according to any one of the preceding claims, characterized in that the control comprises prior to a bill of rights, the implementation of at least one step or program P3 verification of the conditions of the reception by a test d the adequacy between them of certain parameters relating to data to be received, in particular the time, the place, the frequency.

Radio frequency data reception control device (7, 7a), comprising means for controlling the reception and / or access to these data as a function of access rights, said control means comprising an electronic microcircuit ( 7)

characterized in that the data to be monitored comprises time information (IT) and in that said access control means (Da) allow access to the data by a user with reference to this time information and / or relating to an event.

1 1. Radio frequency data receiving device (SCR) comprising the control device (7, 7a) according to the preceding claim and / or able to implement the method according to any one of Claims 1 to 8.