EP0831610A1 - Interactive electronic messaging system - Google Patents

Abstract

The interactive electronic message system has a main memory (2) with memory area (20) for storing message information addressable by a call code (CAP). The codes are transmitted on an RF carrier (4) to multiple radio receivers (5). The receiver information address carries a fixed zone and user definable zone as a function of the message the user wishes to receive. If the call code coincides with the information address, an audio message is sent to a local voice server (6). The server extracts the voice message and broadcasts the message to the user using a telephone (7).

Description

The invention relates to interactive electronic messaging.

Currently, when an organization, a chain of stores or a service provider want to broadcast for example promotional information to be purchased by customers potential, these must publish a certain number of prospectuses advertising or catalogs that they then distribute, for example in mailboxes of potential customers.

Such a process is generally tedious to implement, expensive and does not always guarantee to be able to contact all potential customers likely to be interested in at least one of promotional products.

The invention aims to propose an interactive electronic system for messaging, in particular to remedy the drawbacks which have just been mentioned, and which, in general, allows to put in relation to different entities, for example stores and their potential customers, without resorting to the distribution of paper-based media.

In addition, the messaging system according to the invention is interactive in the sense that these are the entities intended to receive messages who define themselves the types of messages they want get. In other words, the invention aims to allow filtering at level of information received.

To achieve these objectives, the invention proposes a system of messaging essentially comprising radio-frequency receivers intended to receive information messages, for example to be "informed" of the various promotional offers, which have been centralized in memory means.

However, a very important problem inherent in such a email lies in the possible saturation of the network of radio transmission and in the need to provide means of important memory to possibly store a very large number information messages.

The invention notably solves this double problem by providing for the transmission, not full information messages about the wireless network, but transmitting only call codes unequivocally associated with these information messages, and deporting the memory necessary for the content of messages information in the centralized memory means. In others terms, the invention thus in particular minimizes the amount of memory required at each radio frequency receiver, and by therefore the silicon surface used, which has an impact direct on the manufacturing cost.

• des moyens de mémoire principaux comportant des zones de mémoire contenant chacune un message d'information et adressable chacune par un code d'appel choisi,
• des moyens d'émission radio-fréquence comportant des moyens aptes à extraire des moyens de mémoire principaux lesdits codes d'appel, et à émettre sur une porteuse radio-fréquence des informations d'appel contenant respectivement lesdits codes d'appel,
• une pluralité de récepteurs de ladite porteuse, comportant chacun une première mémoire apte à contenir au moins une information d'adresse du récepteur, et
• au moins un serveur vocal.

The invention therefore provides an interactive electronic messaging system comprising:

• main memory means comprising memory areas each containing an information message and each addressable by a chosen call code,
• radio frequency transmission means comprising means capable of extracting said call codes from the main memory means, and transmitting call information containing said call codes on a radio frequency carrier,
• a plurality of receivers of said carrier, each comprising a first memory capable of containing at least address information of the receiver, and
• at least one voice server.

Address information of a receiver comprises a first zone whose content cannot be modified by the receiver user and a second zone whose content is defined on the initiative of this user. Each address information thus defined then contains a user code comparable to a calling code, i.e. having for example a structure identical to that of a code call. The receiver also contains a first interface allowing the introduction of the content of this second zone. It is also provided processing means capable of comparing each call information received with said address information and a second interface capable of delivering outside the receiver a match information if there is a match between at least one call information and at least address information given predetermined criteria of concordance between a call code and a user code. The receiver also contains a second memory capable of storing the call code of any call information having given rise to concordance and means of restitution suitable for restore acoustic information to a telephone restitution comprising, preferably an identifier of the receiver, and the call code contained in each stored call information.

According to the invention, the voice server is connected to the station telephone and main memory. This voice server is capable of receiving acoustic restitution information, to compare each call code contained in the restitution information with said call codes contained in the main memory means and deliver the content of the messages to the telephone set of information corresponding to each of the call codes contained in the restitution information.

In other words, the user of a radio frequency receiver determines itself the types of messages it wishes to receive, by example the promotional offers which he wishes an entity, for example a store, let him know, by determining himself a part of the address information of its receiver. Of course, if this user is interested in several promotional offers different, it will then define several address information different for the receiver. Only call information that will have given rise to a match with this address information stored will be signaled outside the receiver, for example by an audible signal emitted by a piezoelectric plate transducer or by an electroluminescent diode. The user will then be notified that an article whose characteristics he has defined is available.

To know the full characteristics of the offer, the user then picks up a telephone handset, dials voice server call number connected to memory means main codes and have the call codes which gave rise to concordance in its receiver. The voice server, at reception of this acoustic signal, extracts the call codes and then communicates via the telephone line the complete information messages designated by these call codes and stored in the main memory means. User takes then knowledge of these complete messages via the speaker of his telephone handset.

The invention also relates to a transmission method interactive information messages by radio frequency carrier and telephone signals, in which messages are stored information in memory areas of memory means each addressable by a chosen call code, we send on a radio frequency carrier capable of being received by a plurality of receivers, call information containing respectively said call codes, at least one receiver address information comprising a first zone to content that cannot be changed by the receiver user and a second zone with definable content at the initiative of said user, each address information thus defined containing a user code comparable to a call code, we compare within each receiver each call information received with each address information, a match information is delivered to the outside of the receiver if there is a match between at least one call information and at minus address information taking into account predetermined criteria of concordance between a call code and a user code, we returns to a telephone set connected to a connected voice server to the main memory means, acoustic information of restitution including the call code contained in each call information having given rise to concordance, we compare with voice server level each call code contained in restitution information with said call codes contained in the main memory means and we deliver to the station telephone content of information messages corresponding to each of the call codes contained in the restitution information.

According to one mode of implementation, the content of the second address field of each address information from a acoustic activation signal transmitted by the voice server to the receiver through the telephone set, this signal of activation being developed within the voice server in response to user indications transmitted to the server via the a phone booth.

You can also enter the content of the second zone address of address information by means of a keyboard arranged on the receiver.

• la figure 1 est un synoptique schématique d'un système de messagerie selon l'invention;
• la figure 2 est un synoptique schématique d'un récepteur radio-fréquence du système de la figure 1;
• la figure 3 illustre schématiquement un code d'appel désignant un message enregistré dans des moyens de mémoire principaux;
• la figure 4 illustre schématiquement une information d'adresse définie au sein d'un récepteur radio-fréquence; et
• les figures 5 et 6 illustrent plus en détail un mode particulier de transmission d'une information acoustique sur une ligne téléphonique entre un récepteur et un serveur vocal.

Other advantages and characteristics of the invention will appear on examining a non-limiting embodiment and the appended drawings, in which:

• Figure 1 is a schematic block diagram of a messaging system according to the invention;
• Figure 2 is a schematic block diagram of a radio frequency receiver of the system of Figure 1;
• FIG. 3 schematically illustrates a call code designating a message recorded in main memory means;
• FIG. 4 schematically illustrates address information defined within a radio frequency receiver; and
• Figures 5 and 6 illustrate in more detail a particular mode of transmission of acoustic information on a telephone line between a receiver and a voice server.

As illustrated in FIG. 1, the messaging system 1 according to the invention comprises radio frequency transmission means 3 connected to main memory means 2, for example a file, comprising memory areas 20 each addressable by a code CAP call and containing an MS information message. In practice, the transmission means 3 and the main memory means 2 can be physically combined within the same station or be connected by conventional data transmission means.

The transmission means 3 transmit a radio frequency carrier 4 towards a plurality of radio frequency receivers 5, one of which only one of them is shown for simplicity.

Each radio frequency receiver 5 is able to cooperate with the handset 7 of a telephone set connected to the telephone network switched 8.

On this switched telephone network 8 is also connected a voice server 6 also connected to the memory means main 2. Again, the voice server can also be grouped within the station comprising the main memory means.

The transmitting station 3 comprises, conventionally, means coding-station, not shown here for the sake of simplification, intended in particular to produce the radio-frequency carrier. The invention is not limited to a particular transmission standard radio frequency. So when using the transmission standard RDS, well known to those skilled in the art, these station coding means include in particular an RDS encoder such as that described in the European standard EN-50067, for example the December version 1990 (Cenelec-Bruxelles, reference EN-50067: 1990 E). Of course, station 3 also also conventionally includes a HF transmission stage connected to an antenna. he is also possible to use as transmitter 3, in particular on the territory French, the FRANCE-INTER kilometer wave transmitter from Allouis which broadcasts coded phase modulation time signals at 162 KHz at the speed of 1 bit / second. These time signals occupying only 300 ms / s, the organization called Center Commun d'Etudes de Télédiffusion and Telecommunications (CCETT) has developed an extension of the modulation system allowing transmission of 25 bits every second in the 0.7 second interval previously unused, while remaining compatible with receivers existing timetables. In other words, the information transmitted according to the invention between such a transmitter and the receivers 5 would then broadcast according to this modulation system in this interval of 0.7 second. It is not necessary to describe here in more detail the characteristics of this data dissemination, which are well known of the skilled person. He may nevertheless refer for more details in the RADIODIFFUSION-TELEVISION review n ° 95-1986, pages 1-9.

Similarly, for the same transmission standard, for example the RDS standard, there are generally several different networks including some may not be used.

In addition, in general, the messaging system according to the invention is intended for several service providers, for example companies services offering the dissemination of stock market information, chain stores offering promotional offers, or else credit companies in relation with several chains of shops, concert halls, travel agencies, parks attractions, ...

Likewise, at least some of the providers may provide several different services. So, for example, a company of stock exchange services can provide information only concerning actions in general, or specific actions of certain companies, or only bonds, or so information on foreign exchange markets.

Likewise, a credit company can offer messages information linked to different sectors, for example the automotive sector, the furniture sector, shows, trips, ...

It will now be assumed in all of the following that the system of messaging according to the invention has only one voice server 6 linked to a central file usable by all service providers and for different transmission networks.

The CAP call code (figure 3) identifying a message MS information is then advantageously composed of several digits, for example A1-A12. Those skilled in the art know that two digits, which range from 0 to 9, can be coded in binary notation decimal coded (BCD) with 7 bits.

The first two digits A1 and A2 are then for example representative of the transmission network used. The two digits following A3 and A4 designate the service provider. The two digits following A5 and A6 designate a particular service offered by the service provider. The other digits, namely here the digits A7 and A12 complete the CAP call code and allow for example fine-tune the various targeted products in the service offers.

Thus, if for example the digits A5 and A6 are representative of the furniture sector offered by a chain of department stores, we can conceive that the digits A7 and A8 make it possible to distinguish in this sector, the sub-sectors relating more particularly to bedrooms, bathrooms or kitchens, while digits A9 and A10 will be more focused on different types of furniture, for example cabinets or shelves, while digits A11 and A12 will be used to code price information.

So, suppose a chain of department stores makes an offer promotional on cupboards for bedrooms and that its informational message consists not only of clearly indicating a such promotion, but also the store address and the days during which this promotion is effective. The message MS information message will be preceded by a CAP call code whose two digits A7 and A8 will have values predicted for the sub-sector bedrooms, while the two digits A9 and A10 will have the values corresponding to the values provided for the cabinets, while the last two digits A11 and A12 will take as values, those provided for a price below 5000 Frs.

Of course, the different call codes vary depending on the providers and the various messages offered, and are stored in the memory means via processing means classics.

In the example which is described, providing only means of main memory and a single central server, information calls to different radio frequency receivers are actually CAP call codes. In practice, the emission means 3 include means, for example a computer, capable of scanning the content of the main memory means so as to transmit, in general periodically, all of these CAP call codes.

Before examining their treatment at the level of each receptor, we will now describe with particular reference to the Figure 2, the internal structure of such a receiver.

To the receiving antenna 50 is connected a conventional stage of high-frequency reception 51 delivering the received carrier to means for separation, not shown here for simplicity, and which can be conventionally an RDS decoder such as that described in the European standard EN-50067 (if this transmission standard is used). Processing means 52, functionally produced in software form and implanted in a microprocessor, or physically realized by a specific integrated circuit (ASIC), are connected to floor 51.

The processing means 52 are conventionally associated with a first random access memory 55 capable of containing one or more IAD address information which will be discussed in more detail on the structure below.

To these processing means 52, is also connected a second memory 57, in practice a random access memory, itself connected to restitution means comprising an activation member 58 connected to coding means 57 and an electro-acoustic transducer 59, for example example a buzzer. As will be seen below, these means of restitution allow restitution of restitution information acoustic outside the receiver.

Likewise, as will be seen below, each piece of information IAD address actually has a first area whose content is predetermined and not modifiable by the user and a second zone whose content is defined by the user of the receiver. In practice, the content of the first zone is housed in a memory 502, of rewritable preference, also containing an SN identifier of the receiver, for example its serial number. Also, is there a first interface with this user, allowing this user to introduce on its initiative, the content of the second address field in the receiver. This first interface can consist of reception means 500, for example a microphone, intended for receive acoustic activation information including the content of the second address field of address information, and extraction means 501 intended to extract from this information the contents of the second address field to deliver it to the means of treatment 52.

However, it can also be planned to use as a first interface a keyboard 56.

Finally, in order to signal to the user of the box a concordance between received call information and address information from receiver, a second interface is provided which may include a other electro-acoustic transducer 54, for example a blade piezoelectric and / or a light emitting diode, and / or a screen display 53.

We will now describe in more detail the operation of the messaging system on a particular example.

It is assumed that a user decides to obtain from a service provider, for example a chain of department stores, a radio frequency receiver and that he is more particularly interested by the furniture sector. It is also assumed that this receiver is intended to operate on a particular network using a certain standard of transmission. The receiver will then have in memory 502, indications representative of the designation the transmission network used, the designation of the service provider service considered, and the designation of the service or sector concerned. These indications, illustrated by the digits D1-D6 in FIG. 4, form the first address zone Z1 of address information IAD, and are stored in memory 502 when the receiver is delivered to the user.

So that the user can precisely define the types of offers or types of message of which he wishes to be informed, it is then advisable that it completes the address information of its receiver with a second address zone Z2. To do this, several solutions are possible.

According to a preferred embodiment allowing an update content of the main memory means, the voice server includes processing means 60, 61, for example produced under software form, and a piezoelectric plate 62 (electro-acoustic transducer), able to develop, in response to user instructions transmitted by the user via the telephone, the content of the second address field of each address information under the form of acoustic activation information.

More precisely, the user picks up his telephone handset, dials the voice server call number and transmits in a first the indications contained in the first zone address, namely digits D1 to D8. This transmission can be done different ways. It can be done in response to questions emitted by the voice server, by pressing specific keys from the telephone, or through the means of acoustic restitution 57 to 59 of the receiver.

The voice server also comprises means, made of classic way in software form, allowing then to question the user to ask him for his different choices. These choices, which are also materialized by actuations of telephone set keys, transmit signals to the voice server which are in fact the user indications whose microprocessor 60 will be used to develop the digits D7 to D12 of the second address field of the receiver address information (figure 4).

These digits are then transmitted in the form of information acoustic activation, via telephone line at post user's telephone 7. This then mounts the microphone 500 from its receiver on the handset speaker and the extraction means 501 are then able to extract information activation received the content of the second address field of address information.

The processing means 52 of the receiver then define at from the first address area composed of digits D1 to D6 and the second address zone composed of the digits D7 to D12, receiver address information corresponding to the wish to the user. This address information is stored in memory long live 55.

This IAD address information therefore constitutes here a user code which will be compared to the different call codes received by the receiver. This user code is here divided between the first and the second address zones Z1, Z2. In the first address field, the Subzone ZZ1 corresponds to indications designating the type of transmission network, zone ZZ2 contains the indications designating the service provider, while the ZZ3 subzone contains indications relating to the particular service to which the user has subscriber.

The second address zone Z2, the content of which is defined by the user, contains, in the example illustrated here, a first sub-area ZZ4 corresponding for example to the sector of chambers lie down, while the second subzone ZZ5 defines inside of this sector, the cabinet area and that the third subzone ZZ6 refers to a price indication.

Concretely, we can for example assume in this example that the user, who has a receiver delivered by a chain of large stores and who has subscribed to the furniture service, wishes to be warned of offers to sell bedroom cabinets not exceeding a certain price.

Of course, if the user wishes to be informed of the existence other promotional offers, it can repeat operations previously described so as to define other information IAD address which will also be stored in memory 55.

When the transmission means 3 are going to deliver on the carrier 4 all the call codes contained in the memory means main, the processing means 52 of the receiver will compare each of these call codes received with each of the information address stored in the RAM 55 of the receiver.

In the event of an identity between at least one of the call codes received and at least one of the address information, the received call codes which have resulted in such a match, are going to be stored in a RAM 57.

Furthermore, in order to warn the user of the occurrence of a such agreement, provision may be made for the transducer 54 to emit a specific sound or a light emitting diode lights up on the receiver. One can also provide, when the receiver is provided that a written indication is displayed on the screen 53.

From this moment, the user will then activate the organ activation 58 restitution means and these will deliver by through the electro-acoustic transducer 59, outside the receiver, acoustic restitution information containing not only the different call codes stored in memory 57, but also preferably the identifier SN of the receiver.

The user places his receiver against the microphone of the telephone handset 7 previously used to call the server vocal.

The latter's processing means 60 then extract from this acoustic feedback information received, the different codes and compare these with those stored in the main means of memory. The voice server then delivers the corresponding complete messages, to the user, via of the telephone line. The user can therefore read of all the information corresponding to his choices by through his telephone handset.

Note that the receiver identifier is advantageously transmitted at the same time as the call codes of so that you can identify the potential client and send them afterwards possibly a purchase order or any other information complementary.

We have just mentioned, as a criterion of concordance giving rise to the transmission of concordance information to the receiver, a perfect identity between a call code and address information.

As a variant, it can be foreseen that these criteria of concordance further include receiving call information, the call code includes a specific predetermined data.

More specifically, a chain of stores can express the wish to warn potential customers of an exceptional promotion in a particular sector, even if they did not manifest the wish. We can then predict that some of the digits A1-A12 of a call code are forced to specific values and that everything receiver whose processing means detect the presence of such digits, emit the concordance information (although there is no perfect equality between the call code thus received and the address information stored by the user in his receiver) and store this specific call code in memory 57. So when the user will operate the means of restitution of his receiver, he will automatically take note of the information message corresponding.

It can also be provided that the second address area 72 IAD address information is able to contain data of configuration (D13 in FIG. 4) and that the processing means 52 of the receiver are then able to define an additional criterion of concordance between call information and this information address according to the meaning of this data from setting.

Concretely, we can perfectly imagine that a user has set a maximum price indication in the ZZ6 subzone of the second area of its address information (digits D11, D12), but that he nevertheless wishes to be informed of an offer of a product similar to the one chosen but whose price differs slightly from that indicated in subzone ZZ6. In this case, we can predict that the digit D13 is representative of a price range. So at the reception of a call code whose digits A1-A10 correspond to digits D1-D10 of the address information but whose digits A11 and A12 differ from digits D11 and D12 of the address information, the microprocessor 52 will nevertheless determine whether the price indication designated by digits A11 and A12 of the CAP call code corresponds to the price indication designated by the digits D11 and D12 of the information address given the presence of digit D13.

If this is the case, then information will be sent match and the received call code will be stored in memory 57.

In all of the above, it has been assumed that there is only one voice server and unique main memory. In this case, the transmitted call information is advantageously the CAP call codes for addressing the memory areas 20 of these main memory means 2. However, one can perfectly understand that for a certain transmission standard, there is no only one transmission network and each service provider has its own main memory and its own vocal server. In this case, only digits A5 and A6 designating the different services offered by the service provider are in useful theory (besides digits A7 and A12) to address the different memory zones. In other words, we can conceive in this case that the CAP call code be reduced to digits A5-A12. However, to ensure that a receiver issued by this service provider only receive messages delivered by this service provider and not by another service provider, the call information transmitted will include, in addition to the call code, digits A1-A2 designating the network A3 and A4 digits designating the service provider service.

These digits A1-A4 then constitute here call indications predetermined. In this case, the matching criteria at the level of each receiver also includes an identity between the indications A1-A4 call of each received call information and indications contained in the first address field of each information receiver address, in this case the digits D1 to D4.

In other words, if there is no equality between the digits A1-A4 and D1-D4 digits, there is no transmission of information from concordance and there is no storage of the call code received in the memory 57.

These indications contained in a non-modifiable address zone by the user ensure, in particular for providers, security against fraud or misappropriation of messages by rogue users.

It can also be provided in other embodiments, that the user defines the content of the second address field of each of the address information of its receiver other than using a voice server. For example, it can use the keyboard 56 of its receiver and compose the different digits of the second address field on this keyboard from a catalog provided by the service provider (s) and containing the list of all possible call codes.

As a variant, and in particular in the case where all of the codes possible call is not too important, we can predict that the receiver has additional memory, for example a read only memory (not shown in the figures for the purpose of simplification), capable of containing the list of all call codes possible, and that the processing means 52 of the receiver are then able to define the second address area from information from command entered by the user using the keyboard. Concretely, the microprocessor 52 can contain software capable of define questions for the user, questions displayed on screen 53 and inviting this user to define his choices within him proposing to operate this or that key on the keyboard.

We mentioned above the possibility of transmitting on the line by telephone, acoustic restitution information and / or acoustic activation information. It is then particularly advantageous, in particular to avoid disturbing the transmission of data with spurious frequencies, use a coding of restitution and / or activation information in the form of a barcode acoustic. Concretely, coding means are provided, achievable in software form within a microprocessor, at the both in the server and in the receiver. These coding means are suitable, for a bit of logical value "1" of the acoustic information transmitted, to deliver a logic signal having a high state during a first predetermined duration and a low state for a second predetermined duration. However, for a bit of logical value "0", the coding means deliver a logic signal having the low state during all of the first and second durations.

In combination, the transducer 59 or 62 will not deliver any acoustic signal in response to a logic signal in the low state, and, in response to a logic signal in the high state, will deliver a signal monofrequency acoustics whose frequency is substantially at center of the telephone line's bandwidth.

We will therefore preferably use a frequency of 2048 Hz which is also easily usable from a 4-bit microcontroller classic, since this frequency is a multiple of two. The logic signals S1 and S2 corresponding to bit codings having logic values 1 and 0 respectively, are illustrated in the figure 5. The total transmission time T of a bit is 15.625 ms, which is approximately three times the time constant of a microphone coal fitted to a telephone set. Regarding the signal S1, the duration T1 during which the logic signal is in the high state, is taken equal to 11.71875 ms, while the duration T2 is equal to 3.90652 ms.

In fact, only the mask of the signal S1 is represented for purposes of simplification in FIG. 5 and we will nevertheless speak of a high state for the signal S1 for the duration T1 although in reality, during this duration, the signal consists of a plurality of peaks at the frequency of 2048 Hz.

This transmission time of 15.625 ms, corresponding to a baud rate of 64 baud, was adopted here due to its ease of implementation. We can nevertheless choose a speed of optimal transmission between 15 baud and 16 baud, which provides a stable transmission signal given the time constant of a carbon microphone.

Data transmission takes place by sending frames successive. Reception, at server and / or receiver level, is then of synchronous type, that is to say that there is a synchronization performed on the header of each frame transmitted. This synchronization allows in particular the adjustment of reception levels by a automatic gain control device, speed detection transmission, and the timing of the receiving means. The setting of the reception level by an automatic gain control device allows good reception of the frames and compensates for the loss of levels due to the carbon microphone (if used), or by means amplification of a signal produced by an electronic microphone.

A transmission frame is illustrated in Figure 6. The duration the header of a frame is 575 ms and breaks down into a signal logic S3 in the high state for a duration T3 of 400 ms maximum, allowing automatic gain control, followed by a signal in the state low S4 for a duration T4 of 50 ms allowing the setting of means of reception of the radio frequency server and / or receiver, finally followed by a synchronization byte S5 comprising an alternation of bits 1 and bits 0 for 125 ms. S1 and / or S2 signals corresponding to the restitution (activation) information, are then transmitted.

Claims (15)

Interactive electronic messaging system, characterized in that it comprises: main memory means (2) comprising memory areas (20) each containing an information message (MS) and each addressable by a chosen call code (CAP), radiofrequency transmission means (3) comprising means able to extract said call codes from the main memory means, and to transmit call information containing said call codes to a radiofrequency carrier (4), a plurality of receivers (5) of said carrier (4), each comprising a first memory (55) capable of containing at least address information (IAD) of the receiver comprising a first zone (Z1) with content that cannot be modified by the user of the receiver and a second zone (Z2) with content that can be defined on the initiative of this user, each address information (IAD) thus defined containing a user code comparable to a calling code, a first interface (500 , 501) allowing the introduction of the content of the second area (Z2), processing means (52) able to compare each received call information (CAP) with said address information (IAD), a second interface ( 54) capable of delivering outside the receiver concordance information in the event of concordance between at least one call information and at least address information taking into account predetermined criteria of concordance between a call code and a user-code a second memory (57) capable of storing the call code for any call information which gave rise to a match, restitution means (57-59) capable of restoring acoustic information to a telephone set (7) restitution comprising an identifier of the receiver (SN) and the call code contained in each stored call information item, at least one voice server (6) connected to the telephone set (7) and to the main memory means (2), able to receive the acoustic restitution information, to compare each call code contained in the restitution information with said call codes contained in the main memory means and to deliver to the telephone set (7) the content of the information messages (MS) corresponding to each of the call codes contained in the restitution information. System according to claim 1, characterized in that the user code is divided between the first and second zones address (Z1, Z2). System according to claim 1 or 2, characterized in that that the matching criteria include at least one identity between a call code and a user code. System according to claim 1, 2 or 3, characterized in that that the call information contains, in addition to the call codes, predetermined call indications (A1-A6), and by the fact that the concordance criteria include an identity between the indications of each received call information and indications (D1-D6) contained in the first address area (Z1) of each address information of a receiver. System according to one of the preceding claims, characterized by the fact that the concordance criteria include acceptance call information (CAP) containing specific data predetermined. System according to one of the preceding claims, characterized by the fact that the second address area (Z2) of information address (IAD) is capable of containing configuration data (D13), by the fact that the processing means (52) of the receiver are capable of define an additional criterion of concordance between a call information and this address information based on the meaning of this configuration data. System according to one of the preceding claims, characterized by the fact that the first interface includes a keyboard (56). System according to claim 7, characterized in that the receiver has an additional memory capable of containing the list of reference codes, and by the fact that the processing means are able to define the second address area (Z2) from control information entered by means of the keyboard (56). System according to one of the preceding claims, characterized by the fact that the voice server (6) includes means (60-62) able to develop, in response to user instructions transmitted by the user via the telephone, the contents of the second address field of each information address in the form of acoustic activation information, for example the fact that the first interface includes reception means (500) activation information, sent by the voice server and received at the telephone set, and extraction means (501) able to extract from the activation information received the content of the second address field of each address information, and by the fact that the processing means of the receiver define the address information from these different contents. System according to claim 9, characterized in that, the activation information being made up of a plurality of bits, the processing means (61) comprise server-coding means capable of delivering, for one bit of said activation information having the logical value "one", a logic signal having a high state for a first predetermined duration and a low state for a second predetermined duration, and for a bit of said activation information having the logical value " zero ", a logic signal having the low state during the whole of the first and second durations, and an electroacoustic transducer (62) delivering no acoustic signal in response to a logic signal in the low state, and delivering in response to a logic signal in the high state, a single frequency acoustic signal whose frequency is located substantially in the center of the bandwidth of the telephone line (8). System according to one of the preceding claims, characterized in that the second interface (53, 54) includes sensory feedback means, for example chosen from the group light, sound and alphanumeric indicators. System according to one of the preceding claims, characterized in that, the restitution information being made up of a plurality of bits, the restitution means comprise: an activation member (58), coding means (57) capable, in response to actuation of the activation member, for delivering, for one bit of said restitution information having the logic value "one", a logic signal having a high state during a first predetermined duration and a low state for a second predetermined duration, and for a bit of said restitution information having the logical value "zero", a logic signal having the low state during all of the first and second durations, and an electroacoustic transducer (59) delivering no acoustic signal in response to a logic signal in the low state, and delivering in response to a logic signal in the high state, a single frequency acoustic signal whose frequency is located substantially in the center of the bandwidth of the telephone line. Method for interactive transmission of information messages by radio frequency carrier and telephone signals, characterized by the fact that information messages are stored in areas of main memory means memory each addressable by a chosen call code, it transmits on a radio frequency carrier capable of be received by a plurality of receivers, call information containing respectively said call codes, we introduce into each receiver at least one address information of the receiver comprising a first zone with content that cannot be modified by the user of the receiver and a second zone with definable content at the initiative of said user, each address information thus defined containing a user code comparable to a calling code, we compare each received call information within each receiver with each address information, we deliver outside the receiver a match information in case of match between at least call information and at least information address taking into account predetermined criteria of concordance between a call code and a user code, we return to a set telephone connected to a voice server connected to memory means main, acoustic restitution information comprising the call code contained in each call information giving rise to at the voice server level, each code is compared call contained in the restitution information with said codes call contained in the main memory means and we deliver to the telephone set the content of the information messages corresponding to each of the call codes contained in the information of restitution. Method according to claim 13, characterized in that enter the content of the second address field of each address information from an acoustic activation signal transmitted by the voice server to the receiver via the telephone set, this activation signal being developed within the voice server in response to user indications transmitted to the server through the telephone. Method according to claim 13, characterized in that introduces the content of the second address field of a piece of information address using a keypad on the receiver.

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