EP0702874A1 - Data transmission device and method - Google Patents

Data transmission device and method

Info

Publication number
EP0702874A1
EP0702874A1 EP94927027A EP94927027A EP0702874A1 EP 0702874 A1 EP0702874 A1 EP 0702874A1 EP 94927027 A EP94927027 A EP 94927027A EP 94927027 A EP94927027 A EP 94927027A EP 0702874 A1 EP0702874 A1 EP 0702874A1
Authority
EP
European Patent Office
Prior art keywords
document
data
signal
control codes
transmitted
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP94927027A
Other languages
German (de)
French (fr)
Inventor
Valentin Chareyron
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CRYSTAL FOREST
Original Assignee
CRYSTAL FOREST
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by CRYSTAL FOREST filed Critical CRYSTAL FOREST
Publication of EP0702874A1 publication Critical patent/EP0702874A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/00095—Systems or arrangements for the transmission of the picture signal
    • H04N1/00098—Systems or arrangements for the transmission of the picture signal via a television channel, e.g. for a series of still pictures with or without sound

Definitions

  • the present invention relates to a device and a method for transmitting data.
  • the object of the present invention is to allow a very large number of recipients to receive a document simultaneously in the form of a facsimile, for example.
  • Existing devices such as document servers allow the user having a fax machine, to call the server in question, to select the document or documents which interest him, then to trigger their immediate transmission by fax. These devices have the disadvantage of requiring a telephone line for each simultaneous transmission, thereby excluding large-scale information distribution.
  • the object of the present invention is to obviate the aforementioned drawbacks by offering a device using a television signal as an information medium allowing both the simultaneous reception of information by a very large number of recipients having a television and a fax machine.
  • the device is distinguished by the characteristics listed in claim 1.
  • FIG. 1 is a block diagram illustrating the broadcasting part and the receiving part of the data to be transmitted.
  • Figure 2 is a detail view of the block diagram of the data dissemination part.
  • Figure 3 is a detail view of the block diagram il ⁇ shining the data reception part at the user.
  • FIG. 1 illustrates a final television control unit 1 delivering a TV video signal to a signal coding device 2.
  • a document 3 is converted into a digital representation by a scanner (not illustrated) for example, then stored in a computer 4.
  • This computer 4 is also connected to the signal coding device 2 to which it provides data relating to the document as well as control data necessary for the identification and processing of this document.
  • the coding device 2 converts the digital signals coming from the computer 4 into a video signal and combines it with the video signal emitted from the final control room 1 by inserting the data relating to the document into all or part of the TV signal 5 which is in ⁇ suite broadcast over the air or by cable.
  • the reception part illustrated at the bottom of FIG. 1 is located at the subscriber's and comprises a decoding device 6, connected to the TV antenna socket and which receives as input the composite TV signal emitted 5.
  • a telephone line nique 7 is also connected to the input of the decoding device 6.
  • the decoding device 6 extracts the data relating to the document from the composite TV signal 5, separates the control data from the data representing the transmitted document 3, and transfers this data to a fax machine 8 when the telephone line 7 is free.
  • the decoding device 6 also provides an output HF delivering the TV signal to a television set 9 or a video recorder 10 (shown in dotted lines).
  • Figure 2 illustrates in more detail the coding device 2 located on the transmission side. It comprises a converter 11 connected to the computer 4 which delivers to this converter 11 the digital data coming from the document to be transmitted, this data is shaped by suitable programs implanted in the computer. These data include both the data allowing a graphic representation of the document to be transmitted N1 as well as data or control codes N2. These N2 control codes make it possible to identify a document, by associating it with an identification number, a qualification allowing the user to make thematic selections or digital selections according to the time of airtime. for example on certain documents, as well as a descriptor of the N1 data format (Telefax group 3 for example) and their organization in the TV signal (number of TV lines used, number of bytes per TV line, horizontal shift on the TV line etc.).
  • the converter 11 converts this digital data N1 + N2 into a video signal V1.
  • This video signal VI is then directed to the insertion device 12.
  • This insertion device 12 also receives as input a video signal V2 delivered by a final television control room for example.
  • the computer 4 which processes the data N1 + N2 also controls the insertion device 12 using commands C1.
  • This device 12 inserts the signal V1 into the part not used by the image of the video signal V2 and outputs a video signal TV comprising at the same time the television program and the signals carrying the data (N1 + N2) relating to the document. It is also possible to use the full bandwidth of the TV signal to transmit data between program times, for example.
  • This mode of transmission offering the possibility of transferring one or more documents in a period of time of the order of a few seconds, can be implemented alternately with the mode of transmission which only uses the part not used by the TV signal image.
  • Figure 3 illustrates the decoding device 6 located at the subscriber. It comprises an extraction device 13 receiving as input the video signal delivered by the antenna socket. This extraction device 13 separates the TV signal from the signals relating to the document (content and control). It is furthermore provided with a converter circuit which converts the part of the video signal comprising the information relating to the control codes N2 of the document transmitted into digital data. These control codes N2 are then directed to a selection management unit 14. This selection management unit 14 will, depending on its programming or direct intervention by the user, order the extraction device 13 to convert the part of the signal which contains the content of the document into digital data N1 and to transfer the data relating to the content of the document N1 to an intermediate memory 15.
  • a switching device 16 detects when the telephone line T + T is free and transfers the data from memory 15 on the telephone line to the fax machine to print the trans- put 3a.
  • the selection management unit 14 can include a control device that the user can operate, for example using a remote control, as well as a programmer. The function of this programmer is to trigger the transmission of data N1 to the printing device when it detects an adequacy between the programmed criteria and the digital data N2 transmitted.
  • the extraction device 13 directly transfers the data relating to the content of the document N1 to a printing device suitable for the format of the transmitted data.
  • a video memory in the decoding device 6 stores one after the other each image of the program, excluding images including a document.
  • the last image in memory is that which preceded the distribution of the document.
  • the decoding device can therefore extract the data from the document while outputting a frozen image by repeating the image in memory until the transmission of the document has ended.
  • the data which one wishes to transmit can be recorded beforehand on a video cassette, an optical disc or any other suitable support for receiving a video signal.
  • the signal source is no longer the antenna socket of the subscriber, but the signal delivered by a device capable of re ⁇ producing pre-recorded data such as a video recorder for example.
  • the decoding device can also be used to print the TV image.
  • the TV image is digitized, converted to the format of the fax data and stored in the intermediate memory for transmission to the printing device.
  • One of the main advantages of the present invention is that it allows the reception of information in the form of documents using conventional equipment such as a television and a fax machine.
  • the decoding device that the user must acquire is inexpensive and can be integrated into the television, the fax machine or a computer in the form of an additional input-output card.
  • the control data N2 and the selection management unit 14 guarantee the possibility of adapting the device for the reception of documents of different formats.
  • the programs which control the extraction device 13 as well as the selection management unit 14 can be automatically updated by downloading in the same way as during the transmission of documents.

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Facsimiles In General (AREA)

Abstract

It comprises, on the transmission side, a coding unit (2) which converts the digital signals representing the data to be transmitted into a video signal which is inserted in all or part of a TV signal. It further comprises, on the reception side, a decoding unit (6) which retrieves from the TV signal the transmitted data and converts said video signal into digital data, said digital data being then directed to a printing unit (8).

Description

DISPOSITIF ET PROCEDE DE TRANSMISSION DE DONNEES DEVICE AND METHOD FOR TRANSMITTING DATA
La présente invention a pour objet un dispositif et un procédé de transmission de données. Le but de la pré¬ sente invention est de permettre à un nombre très impor¬ tant de destinataires la réception simultanée d'un docu¬ ment sous forme d'un fac-similé par exemple. Des disposi¬ tifs existants comme des serveurs de documents permettent à l'utilisateur disposant d'un télécopieur, d'appeler le serveur en question, de sélectionner le ou les documents qui l'intéressent, puis de déclencher leur transmission immédiate par télécopie. Ces dispositifs présentent l'in¬ convénient de nécessiter une ligne téléphonique pour chaque transmission simultanée, excluant de ce fait une distribution d'informations à large échelle.The present invention relates to a device and a method for transmitting data. The object of the present invention is to allow a very large number of recipients to receive a document simultaneously in the form of a facsimile, for example. Existing devices such as document servers allow the user having a fax machine, to call the server in question, to select the document or documents which interest him, then to trigger their immediate transmission by fax. These devices have the disadvantage of requiring a telephone line for each simultaneous transmission, thereby excluding large-scale information distribution.
La présente invention a pour but d'obvier les incon¬ vénients précités en offrant un dispositif utilisant un signal de télévision comme support d'informations permet¬ tant la réception simultanée d'informations par un très grand nombre de destinataires disposant d'un téléviseur et d'un télécopieur.The object of the present invention is to obviate the aforementioned drawbacks by offering a device using a television signal as an information medium allowing both the simultaneous reception of information by a very large number of recipients having a television and a fax machine.
Le dispositif se distingue par les caractéristiques énumérées à la revendication 1.The device is distinguished by the characteristics listed in claim 1.
Le dessin annexé illustre schématiquement et à titre d'exemple une forme d'exécution du dispositif selon la présente invention.The attached drawing illustrates schematically and by way of example an embodiment of the device according to the present invention.
La figure 1 est un schéma bloc illustrant la partie diffusion et la partie réception des données à trans¬ mettre. La figure 2 est une vue de détail du schéma bloc de la partie diffusion des données.FIG. 1 is a block diagram illustrating the broadcasting part and the receiving part of the data to be transmitted. Figure 2 is a detail view of the block diagram of the data dissemination part.
La figure 3 est une vue de détail du schéma bloc il¬ lustrant la partie réception des données chez l'utilisa¬ teur.Figure 3 is a detail view of the block diagram il¬ shining the data reception part at the user.
La figure 1 illustre une régie finale de télévision 1 délivrant un signal vidéo TV à un dispositif de codage des signaux 2. Un document 3 est converti en une représenta¬ tion numérique par un scanner (non illustré) par exemple, puis stocké dans un ordinateur 4. Cet ordinateur 4 est également connecté au dispositif de codage des signaux 2 auquel il fournit des données relatives au document ainsi que des données de contrôle nécessaires à l'identification et au traitement de ce document. Le dispositif de codage 2 convertit les signaux numériques venant de l'ordinateur 4 en un signal vidéo et le combine avec le signal vidéo émis de la régie finale 1 en insérant les données relatives au document dans tout ou partie du signal TV 5 qui est en¬ suite diffusé par liaison hertzienne ou par câble.FIG. 1 illustrates a final television control unit 1 delivering a TV video signal to a signal coding device 2. A document 3 is converted into a digital representation by a scanner (not illustrated) for example, then stored in a computer 4. This computer 4 is also connected to the signal coding device 2 to which it provides data relating to the document as well as control data necessary for the identification and processing of this document. The coding device 2 converts the digital signals coming from the computer 4 into a video signal and combines it with the video signal emitted from the final control room 1 by inserting the data relating to the document into all or part of the TV signal 5 which is in ¬ suite broadcast over the air or by cable.
La partie réception illustrée au bas de la figure 1 se situe chez l'abonné et comporte un dispositif de déco¬ dage 6, raccordé à la prise d'antenne TV et qui reçoit en entrée le signal TV composite émis 5. Une ligne télépho¬ nique 7 est également connectée à l'entrée du dispositif de décodage 6. Le dispositif de décodage 6 extrait les données relatives au document du signal TV composite 5, sépare les données de contrôle des données représentant le document transmis 3, et transfère ces données vers un télécopieur 8 lorsque la ligne téléphonique 7 est libre. Le dispositif de décodage 6 fournit également une sortie HF délivrant le signal TV vers un téléviseur 9 ou un ma¬ gnétoscope 10 (représentés en pointillés).The reception part illustrated at the bottom of FIG. 1 is located at the subscriber's and comprises a decoding device 6, connected to the TV antenna socket and which receives as input the composite TV signal emitted 5. A telephone line nique 7 is also connected to the input of the decoding device 6. The decoding device 6 extracts the data relating to the document from the composite TV signal 5, separates the control data from the data representing the transmitted document 3, and transfers this data to a fax machine 8 when the telephone line 7 is free. The decoding device 6 also provides an output HF delivering the TV signal to a television set 9 or a video recorder 10 (shown in dotted lines).
La figure 2 illustre plus en détail le dispositif de codage 2 situé du côté émission. Il comporte un convertis¬ seur 11 connecté à l'ordinateur 4 qui délivre à ce conver¬ tisseur 11 les données numériques provenant du document à transmettre, ces données sont mises en forme par des pro¬ grammes adéquats implantés dans l'ordinateur. Ces données comportent à la fois les données permettant une représen¬ tation graphique du document à transmettre N1 ainsi que des données ou codes de contrôle N2. Ces codes de contrôle N2 permettent d'identifier un document, en lui associant un numéro d'identification, une qualification permettant à l'utilisateur d'opérer des sélections thématiques ou des sélections numériques en fonction de l'heure de passage à l'antenne par exemple sur certains documents, ainsi qu'un descripteur du format des données N1 (Téléfax groupe 3 par exemple) et de leur organisation dans le signal TV (nombre de lignes TV utilisées, nombre d'octets par ligne TV, shift horizontal sur la ligne TV etc.).Figure 2 illustrates in more detail the coding device 2 located on the transmission side. It comprises a converter 11 connected to the computer 4 which delivers to this converter 11 the digital data coming from the document to be transmitted, this data is shaped by suitable programs implanted in the computer. These data include both the data allowing a graphic representation of the document to be transmitted N1 as well as data or control codes N2. These N2 control codes make it possible to identify a document, by associating it with an identification number, a qualification allowing the user to make thematic selections or digital selections according to the time of airtime. for example on certain documents, as well as a descriptor of the N1 data format (Telefax group 3 for example) and their organization in the TV signal (number of TV lines used, number of bytes per TV line, horizontal shift on the TV line etc.).
Le convertisseur 11 convertit ces données numériques N1+N2 en un signal vidéo V1. Ce signal vidéo VI est en¬ suite dirigé vers le dispositif d'insertion 12. Ce dispo¬ sitif d'insertion 12 reçoit également en entrée un signal vidéo V2 délivré par une régie finale de télévision par exemple. L'ordinateur 4 qui traite les données N1+N2 pilote également le dispositif d'insertion 12 à l'aide de commandes C1. Ce dispositif 12 insère le signal V1 dans la partie non utilisée par l'image du signal vidéo V2 et fournit en sortie un signal vidéo TV comportant à la fois le programme de télévision et les signaux porteurs des données (N1+N2) relatives au document. Il est également possible d'utiliser toute la largeur de bande du signal TV pour transmettre des données entre les horaires des pro¬ grammes par exemple. Ce mode de transmission, offrant la possibilité de transférer un ou plusieurs documents dans une période de temps de 1' ordre de quelques secondes peut être mis en oeuvre en alternance avec le mode de transmis¬ sion qui n'utilise que la partie non utilisée par l'image du signal TV.The converter 11 converts this digital data N1 + N2 into a video signal V1. This video signal VI is then directed to the insertion device 12. This insertion device 12 also receives as input a video signal V2 delivered by a final television control room for example. The computer 4 which processes the data N1 + N2 also controls the insertion device 12 using commands C1. This device 12 inserts the signal V1 into the part not used by the image of the video signal V2 and outputs a video signal TV comprising at the same time the television program and the signals carrying the data (N1 + N2) relating to the document. It is also possible to use the full bandwidth of the TV signal to transmit data between program times, for example. This mode of transmission, offering the possibility of transferring one or more documents in a period of time of the order of a few seconds, can be implemented alternately with the mode of transmission which only uses the part not used by the TV signal image.
La figure 3 illustre le dispositif de décodage 6 situé chez l'abonné. Il comporte un dispositif d'extrac¬ tion 13 recevant en entrée le signal vidéo délivré par la prise d'antenne. Ce dispositif d'extraction 13 sépare le signal TV des signaux relatifs au document (contenu et contrôle). Il est de plus muni d'un circuit convertisseur qui convertit la partie du signal vidéo comportant les in¬ formations relatives aux codes de contrôle N2 du document transmis en données numériques. Ces codes de contrôle N2 sont ensuite dirigés vers une unité de gestion des sélec¬ tions 14. Cette unité de gestion des sélections 14 va, en fonction de sa programmation ou de l'intervention directe de l'utilisateur, commander au dispositif d'extraction 13 de convertir la partie du signal qui comporte le contenu du document en données numériques N1 et de transférer les données relatives au contenu du document N1 vers une mé¬ moire intermédiaire 15. Un organe de commutation 16 dé¬ tecte quand la ligne téléphonique T+T est libre et trans¬ fère les données de la mémoire 15 sur la ligne télépho¬ nique vers le télécopieur pour imprimer le document trans- mis 3a. L'unité de gestion des sélections 14 peut compor¬ ter un dispositif de commande que l'utilisateur peut ac¬ tionner par exemple à l'aide d'une télécommande ainsi qu'un programmateur. Ce programmateur a pour fonction de déclencher la transmission des données N1 vers le disposi¬ tif d'impression lorsqu'il détecte une adéquation entre les critères programmés et les données numériques N2 transmises.Figure 3 illustrates the decoding device 6 located at the subscriber. It comprises an extraction device 13 receiving as input the video signal delivered by the antenna socket. This extraction device 13 separates the TV signal from the signals relating to the document (content and control). It is furthermore provided with a converter circuit which converts the part of the video signal comprising the information relating to the control codes N2 of the document transmitted into digital data. These control codes N2 are then directed to a selection management unit 14. This selection management unit 14 will, depending on its programming or direct intervention by the user, order the extraction device 13 to convert the part of the signal which contains the content of the document into digital data N1 and to transfer the data relating to the content of the document N1 to an intermediate memory 15. A switching device 16 detects when the telephone line T + T is free and transfers the data from memory 15 on the telephone line to the fax machine to print the trans- put 3a. The selection management unit 14 can include a control device that the user can operate, for example using a remote control, as well as a programmer. The function of this programmer is to trigger the transmission of data N1 to the printing device when it detects an adequacy between the programmed criteria and the digital data N2 transmitted.
Dans une variante, le dispositif d'extraction 13 transfère directement les données relatives au contenu du document N1 vers un dispositif d'impression adapté au for¬ mat des données transmises.In a variant, the extraction device 13 directly transfers the data relating to the content of the document N1 to a printing device suitable for the format of the transmitted data.
Dans une autre variante, et dans le cas où la totali¬ té ou une partie de l'image TV est utilisée en cours d'é¬ mission pour transmettre un document, une mémoire vidéo dans le dispositif de décodage 6 mémorise l'une après l'autre chaque image du programme, à l'exclusion des images incluant un document. Ainsi, la dernière image en mémoire est celle qui a précédé la diffusion du document. Le dispositif de décodage peut donc extraire les données du document tout en fournissant en sortie une image gelée par répétition de l'image en mémoire jusqu'à la fin de la transmission du document. En utilisant une zone statique de 1 ' image , (décor du studio, couverture de livre par exemple) pour incruster la transmission du document, et en commençant celle-ci après la première image du plan, le téléspectateur ne verra pas les codes du document trans¬ mis.In another variant, and in the case where all or part of the TV image is used during transmission to transmit a document, a video memory in the decoding device 6 stores one after the other each image of the program, excluding images including a document. Thus, the last image in memory is that which preceded the distribution of the document. The decoding device can therefore extract the data from the document while outputting a frozen image by repeating the image in memory until the transmission of the document has ended. By using a static area of the image, (studio decor, book cover for example) to embed the transmission of the document, and starting this after the first image of the plan, the viewer will not see the codes of the document transmitted.
On notera également que les données que l'on désire transmettre peuvent être enregistrées préalablement sur une cassette vidéo, un disque optique ou tout autre sup¬ port propre à recevoir un signal vidéo. Dans ce cas la source du signal n'est plus la prise d'antenne de l'abon¬ né, mais le signal délivré par un appareil capable de re¬ produire des données pré-enregistrées comme un magnétos¬ cope par exemple. Le dispositif de décodage peut également servir à imprimer l'image TV. Dans ce cas, l'image TV est numérisée, convertie au format des données téléfax et mé¬ morisée dans la mémoire intermédiaire en vue de sa trans¬ mission au dispositif d'impression.It will also be noted that the data which one wishes to transmit can be recorded beforehand on a video cassette, an optical disc or any other suitable support for receiving a video signal. In this case the signal source is no longer the antenna socket of the subscriber, but the signal delivered by a device capable of re¬ producing pre-recorded data such as a video recorder for example. The decoding device can also be used to print the TV image. In this case, the TV image is digitized, converted to the format of the fax data and stored in the intermediate memory for transmission to the printing device.
Un des principaux avantages de la présente invention est de permettre la réception d'informations sous forme de documents en se servant d'équipements usuels comme un téléviseur et un télécopieur. L'organe de décodage que l'utilisateur doit acquérir est d'un coût modeste et peut être intégré dans le téléviseur, dans le télécopieur ou dans un ordinateur sous forme d'une carte d'entrée-sortie additionnelle. On garantit grâce aux données de contrôle N2 et à l'unité de gestion des sélection 14 la possibilité d'adapter le dispositif pour la réception de documents de différents formats . Les programmes qui pilotent le dispo¬ sitif d'extraction 13 ainsi que l'unité de gestion des sé¬ lections 14 peuvent être mis à jour automatiquement par téléchargement de la même façon que lors de la transmis¬ sion de documents. One of the main advantages of the present invention is that it allows the reception of information in the form of documents using conventional equipment such as a television and a fax machine. The decoding device that the user must acquire is inexpensive and can be integrated into the television, the fax machine or a computer in the form of an additional input-output card. The control data N2 and the selection management unit 14 guarantee the possibility of adapting the device for the reception of documents of different formats. The programs which control the extraction device 13 as well as the selection management unit 14 can be automatically updated by downloading in the same way as during the transmission of documents.

Claims

REVENDICATIONS
1. Dispositif de transmission de données comportant un organe de codage du côté émission, et un organe de dé¬ codage du côté réception, caractérisé par le fait que l'organe de codage comporte un circuit convertisseur destiné à convertir les données numériques représentant le contenu du document à transmettre ainsi que les codes de contrôle associés à ce document en un signal vidéo, et par le fait qu'il comporte un circuit inser- teur connecté d'une part à la sortie du circuit conver¬ tisseur et d'autre part à une source générant un signal TV et destiné à insérer ledit signal vidéo correspon¬ dant au document à transmettre dans tout ou partie du signal TV; par le fait que l'organe de décodage com¬ porte un circuit extracteur destiné à séparer du signal TV les signaux relatifs aux codes de contrôle du docu¬ ment et les signaux relatifs au contenu du document et de convertir ces signaux en données numériques, ainsi qu'un dispositif d'impression de ces données.1. Data transmission device comprising a coding member on the transmission side, and a decoding member on the reception side, characterized in that the coding member comprises a converter circuit intended to convert the digital data representing the content of the document to be transmitted as well as the control codes associated with this document into a video signal, and by the fact that it includes an inserter circuit connected on the one hand to the output of the converter circuit and on the other hand to a source generating a TV signal and intended to insert said video signal corresponding to the document to be transmitted in all or part of the TV signal; by the fact that the decoding unit comprises an extractor circuit intended to separate from the TV signal the signals relating to the control codes of the document and the signals relating to the content of the document and to convert these signals into digital data, thus than a device for printing this data.
2. Dispositif selon la revendication 1, caractérisé par le fait que l'organe de décodage comporte une unité de gestion des codes de contrôle et une mémoire intermé¬ diaire recevant les données représentant le contenu du document transmis.2. Device according to claim 1, characterized in that the decoding member comprises a control code management unit and an intermediate memory receiving the data representing the content of the transmitted document.
3. Dispositif selon la revendication 2, caractérisé par le fait qu'il comporte un organe de commutation destiné à transférer le contenu de la mémoire intermédiaire sur une ligne téléphonique.3. Device according to claim 2, characterized in that it comprises a switching member intended for transfer the contents of the intermediate memory to a telephone line.
Dispositif selon l'une des revendications précédentes, caractérisé par le fait qu'il comporte un ordinateur destiné au traitement et à la génération des codes de contrôle permettant la représentation ainsi que l'iden¬ tification du document à transmettre et par le fait que cet ordinateur est connecté au dispositif de codage des signaux.Device according to one of the preceding claims, characterized in that it comprises a computer intended for the processing and generation of the control codes allowing the representation as well as the identification of the document to be transmitted and by the fact that this computer is connected to the signal coding device.
Procédé de transmission de données comprenant les étapes suivantes : génération de codes de contrôle né¬ cessaires à l'identification et au traitement d'un do¬ cument, conversion des données numériques représentant le contenu du document à transmettre ainsi que les codes de contrôle en un signal vidéo, insertion de ce signal vidéo dans tout ou partie des signaux d'un canal TV, transmission de ce signal vidéo, séparation des si¬ gnaux relatifs au contenu du document des signaux com¬ portant les codes de contrôle et du signal TV, conver¬ sion des signaux relatifs aux codes de contrôle en don¬ nées numériques, envoi de ces données de contrôle vers une unité de gestion de sélection, traitement des codes de contrôle, conversion et transfert des données sélec¬ tionnées vers un dispositif d'impression. Data transmission method comprising the following steps: generation of control codes necessary for the identification and processing of a document, conversion of digital data representing the content of the document to be transmitted as well as the control codes into a video signal, insertion of this video signal into all or part of the signals of a TV channel, transmission of this video signal, separation of signals relating to the content of the document from the signals comprising the control codes and from the TV signal , conversion of the signals relating to the control codes into digital data, sending of these control data to a selection management unit, processing of the control codes, conversion and transfer of the selected data to a device for impression.
EP94927027A 1993-09-29 1994-09-29 Data transmission device and method Withdrawn EP0702874A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH293093 1993-09-29
CH2930/93 1993-09-29
PCT/IB1994/000297 WO1995009507A1 (en) 1993-09-29 1994-09-29 Data transmission device and method

Publications (1)

Publication Number Publication Date
EP0702874A1 true EP0702874A1 (en) 1996-03-27

Family

ID=4244825

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94927027A Withdrawn EP0702874A1 (en) 1993-09-29 1994-09-29 Data transmission device and method

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EP (1) EP0702874A1 (en)
AU (1) AU7663594A (en)
WO (1) WO1995009507A1 (en)

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US5014125A (en) * 1989-05-05 1991-05-07 Cableshare, Inc. Television system for the interactive distribution of selectable video presentations
JPH0432353A (en) * 1990-05-29 1992-02-04 Sony Corp Tv facsimile receiver

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9509507A1 *

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WO1995009507A1 (en) 1995-04-06
AU7663594A (en) 1995-04-18

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