WO1995028778A1 - Method of identification of image sources for audience monitoring and device for carrying out said method - Google Patents

Method of identification of image sources for audience monitoring and device for carrying out said method

Info

Publication number
WO1995028778A1
WO1995028778A1 PCT/FR1995/000487 FR9500487W WO9528778A1 WO 1995028778 A1 WO1995028778 A1 WO 1995028778A1 FR 9500487 W FR9500487 W FR 9500487W WO 9528778 A1 WO9528778 A1 WO 9528778A1
Authority
WO
WIPO (PCT)
Prior art keywords
image
source
available
receiver
lines
Prior art date
Application number
PCT/FR1995/000487
Other languages
French (fr)
Inventor
Renaud Marchand
Original Assignee
Renaud Marchand
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 Renaud Marchand filed Critical Renaud Marchand
Priority to EP95917396A priority Critical patent/EP0755592A1/en
Publication of WO1995028778A1 publication Critical patent/WO1995028778A1/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/765—Interface circuits between an apparatus for recording and another apparatus
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
    • H04H60/35—Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users
    • H04H60/38—Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users for identifying broadcast time or space
    • H04H60/41—Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users for identifying broadcast time or space for identifying broadcast space, i.e. broadcast channels, broadcast stations or broadcast areas
    • H04H60/43—Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users for identifying broadcast time or space for identifying broadcast space, i.e. broadcast channels, broadcast stations or broadcast areas for identifying broadcast channels

Definitions

  • the present invention relates to audimetry applied to television, that is to say to the identification in real time of the source of the images displayed on the screen of a television 5 or recorded and more precisely to the identification of that of the various image sources available to the user, such as, for example, the traditional terrestrial television network, a cable television network, a satellite television network, a video recorder, a camcorder, a video-disc, a database, etc., which is, at a given instant, displayed on said television or recorded.
  • the traditional terrestrial television network a cable television network, a satellite television network, a video recorder, a camcorder, a video-disc, a database, etc.
  • the present invention aims to propose a method making it possible to identify the image displayed on the receiver and its source, in a direct and simple manner by eliminating the need to equip the Scart boxes of the systems currently used in audimetry.
  • the subject of the invention is a method of identifying image sources capable of being displayed selectively on a television receiver or recorded and their origin from the various sources available to the user, such as, in particular, the traditional hertzian television network, a cable television network, a satellite television network, a video recorder, a camcorder, a video- disk, a data bank, characterized in that it consists, at the level of reception at the user of the video signal coming from each of said available sources, at coding at least one line of the image in order to identify its source and its nature and, at the display or recording level, decoding the coded image line or lines in order to provide an appropriate audimetry system, in real time or deferred, in particular the identification of the image source available to the user displayed on the television receiver or recorded, at any time.
  • the traditional hertzian television network such as, in particular, the traditional hertzian television network, a cable television network, a satellite television network, a video recorder, a camcorder, a video- disk,
  • the coding of the image lines is carried out, in the known manner, on the so-called invisible lines, namely the lines numbered by convention 1 to 23.
  • the coding can also make it possible to convey data other than identification the source, for example, when the source is a network of channels (traditional wireless network, cable network, satellite network), the identification of the number or name of the channel watched, or even data such as reading or recording when it is a VCR.
  • FIG. 1 schematically illustrates the serving, for example at a user's home, a television apparatus by a plurality of video sources capable of being selectively connected to said apparatus;
  • FIG. 2 represents the functional diagram of an embodiment of the device according to the invention for coding the signal of the image source at the level of its reception at the user;
  • Figure 3 represents the functional diagram of the decoding device at the level of the television
  • Figure 4 is a diagram of chaining of the sockets Perits of the various accessible image sources.
  • FIG. 1 a television set has been shown on TV, installed for example in a private home equipped with an audimetry measurement device symbolized at A.
  • audimetry measurement device symbolized at A.
  • Such a device is well known and makes it possible to record data relating to the identification of the television channel watched by the user on his television during the day.
  • VS1, VS2, VS3, VSn, etc. various video sources available to the user are symbolized, such as, for example, a traditional terrestrial television network, a cable television network, a satellite television network, a video recorder, camcorder, video-disc, data bank, etc ..., all connected to the TV receiver via the SCART socket of the latter or linked to the SCART socket of the latter.
  • the installation is provided, on the one hand, at each image source available to the user, with a device for coding certain image lines and, on the other hand, at the receiver (and possibly the video recorder), a device for decoding the coded lines, connected to the audimetry device.
  • FIG. 2 an embodiment of the device according to the invention is illustrated for coding the signal from the image source at the level of its reception at the user, the video signals coming from the Scart socket 1 where the various video sources VS1 to VSn are available to the user.
  • the coding device C is constituted, in the illustrated embodiment, by a multiplexer 2 receiving by a first input the video signal coming from the Scart socket l. On the output of multiplexer 2 is available the video signal Vout intended for the TV receiver.
  • a synchronization extractor 3 associated with a device 4 for searching image lines of the video signal makes it possible to select some of the image lines to code them using an encoder 5, the output of which is connected to a second input of the multiplexer 2 , the assembly being managed, in the known manner, by a control microprocessor symbolized in M.
  • the device 3, 4 selects one, several or all of the so-called invisible image lines, the conventionally numbered lines 1 to 23 of the video frame, in order to insert therein determined binary states responsible for conveying information, namely and firstly the identification of the source of images available on take 1.
  • the coding device C is produced in the form of a Scart box with male / female pins which will be plugged into the socket 1 and will therefore replace the latter.
  • This decoding device D comprises a synchronization extractor 3 ', associated with a device 4' for searching image lines of the video signal Vout intended for the receiver
  • the device D is advantageously produced in the form of a Scart box with male / female pins interposed between the Scart input of the TV receiver and the outlet delivering Vout.
  • the multiplexer 2 of the coding device C makes it possible to exchange a line of the image by a line which contains information coded in binary form.
  • the device 3, 4 makes it possible to count the lines of the video frame, to locate the zero line and to select the line or lines to be coded.
  • the modulation of coding of the information which it is desired to introduce into the selected image lines can be of any type, for example DIDON.
  • Video information may contain other data useful for audimetry, such as playback or recording, video overlay, simultaneous display of several channels, coded channel decryption, subtitling, etc.
  • this video recorder must be equipped, like the TV television set, with a decoding device D.
  • the device of the invention allows a simple and direct way to verify the integrity of the entire video installation of a user and its configuration point by point.
  • the invention in the case of the use of Peritals sockets in chaining, as illustrated by FIG. 4, may, for all the boxes (designated C + D) associated with the sources VS1 to VSn, include the coding function and the decoding function, so as not to enter the source identification code

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
  • Television Systems (AREA)

Abstract

Method for the identification of image sources selectively displayable on a television receiver, or recordables and of the various sources (VS1, VS2, VS3, VSn) available to the user from which the images are derived, these sources including the conventional off-air television network, a cable television network, a satellite television network, a video recorder, a video camera, a videodisk and a data bank. The invention is characterized in that it comprises, on the user receiving end of the video signal derived from each of the available sources, coding at least one image line so as to identify its source and nature and, at the TV receiver end or video recorder end, decoding the coded image line(s) in order to supply to a suitable audience monitoring system (A), in real or delayed time, the identification of the image source available to the user and displayed on the receiver or recorded, at any particular moment. The method of the invention is suitable for television audience monitoring.

Description

PROCEDE D'IDENTIFICATION DE SOURCES D'IMAGE A DES FINS DE MESURE D'AUDIENCE ET DISPOSITIF POUR SA MISE EN OEUVRE.METHOD FOR IDENTIFYING IMAGE SOURCES FOR AUDIENCE MEASUREMENT AND DEVICE FOR IMPLEMENTING SAME.
La présente invention a trait à l'audimétrie appliquée à la télévision, c'est-à-dire à l'identification en temps réel de la source des images affichées sur l'écran d'un téléviseur 5 ou enregistrées et plus précisément à l'identification de celle des diverses sources d'images disponibles chez l'usager, telles que, par exemple, le réseau de télévision hertzien traditionnel, un réseau de télévision câblé, un réseau de télévision par satellite, un magnétoscope, un 0 caméscope, un vidéo-disque, une banque de données, etc..., qui est, à un instant donné , affichée sur ledit téléviseur ou enregistrée.The present invention relates to audimetry applied to television, that is to say to the identification in real time of the source of the images displayed on the screen of a television 5 or recorded and more precisely to the identification of that of the various image sources available to the user, such as, for example, the traditional terrestrial television network, a cable television network, a satellite television network, a video recorder, a camcorder, a video-disc, a database, etc., which is, at a given instant, displayed on said television or recorded.
Actuellement pour connaître la provenance de l'image effectivement affichée sur l'écran d'un téléviseur, à des 5 fins notamment de mesure d'audience, il est nécessaire d'authentifier les diverses sources en tant que telles et d'utiliser le signal de commutation lente au niveau de la prise Péritel pour connaître la provenance de l'image effectivement affichée sur l'écran du téléviseur, ce qui ne 0 permet pas de contrôler la liaison physique entre la source d'image et le récepteur.Currently to know the source of the image actually displayed on the screen of a television, for 5 purposes in particular audience measurement, it is necessary to authenticate the various sources as such and to use the signal slow switching at the SCART socket to know the source of the image actually displayed on the TV screen, which does not allow you to control the physical link between the image source and the receiver.
La présente invention vise à proposer un procédé permettant d'identifier l'image affichée sur le récepteur et sa provenance, de manière directe et simple en supprimant la 5 nécessité d'équipement des boîtiers Péritel des systèmes actuellement utilisés en audimétrie.The present invention aims to propose a method making it possible to identify the image displayed on the receiver and its source, in a direct and simple manner by eliminating the need to equip the Scart boxes of the systems currently used in audimetry.
A cet effet, l'invention a pour objet un procédé d'identification de sources d'image susceptibles d'être affichées sélectivement sur un récepteur de télévision ou enregistrées et de leur provenance à partir des diverses sources disponibles chez l'usager, telles que, notamment, le réseau de télévision hertzien traditionnel, un réseau de télévision câblé, un réseau de télévision par satellite, un magnétoscope, un caméscope, un vidéo-disque, une banque de données, caractérisé en ce qu'il consiste, au niveau de la réception chez l'usager du signal vidéo provenant de chacune desdites sources disponibles, à coder au moins une ligne de l'image afin d'identifier sa provenance et sa nature et, au niveau de l'affichage ou de l'enregistrement, à décoder la ou les lignes d'image codées en vue de fournir à un système d'audimétrie approprié, en temps réel ou en différé, notamment l'identification de la source d'image disponible chez l'usager affichée sur le récepteur de télévision ou enregistrée, à un instant quelconque.To this end, the subject of the invention is a method of identifying image sources capable of being displayed selectively on a television receiver or recorded and their origin from the various sources available to the user, such as, in particular, the traditional hertzian television network, a cable television network, a satellite television network, a video recorder, a camcorder, a video- disk, a data bank, characterized in that it consists, at the level of reception at the user of the video signal coming from each of said available sources, at coding at least one line of the image in order to identify its source and its nature and, at the display or recording level, decoding the coded image line or lines in order to provide an appropriate audimetry system, in real time or deferred, in particular the identification of the image source available to the user displayed on the television receiver or recorded, at any time.
Avantageusement, le codage des lignes d'image s'effectue, à la manière connue, sur les lignes dites invisibles, à savoir les lignes numérotées par convention 1 à 23. Le codage peut également permettre de véhiculer d'autres données que l'identification de la source, par exemple, lorsque la source est un réseau de chaînes (réseau hertzien traditionnel, réseau câblé, réseau par satellite) , l'identification du numéro ou du nom de la chaîne regardée, ou encore des données telles que la lecture ou l'enregistrement lorsqu'il s'agit d'un magnétoscope.Advantageously, the coding of the image lines is carried out, in the known manner, on the so-called invisible lines, namely the lines numbered by convention 1 to 23. The coding can also make it possible to convey data other than identification the source, for example, when the source is a network of channels (traditional wireless network, cable network, satellite network), the identification of the number or name of the channel watched, or even data such as reading or recording when it is a VCR.
L'invention concerne également un dispositif pour la mise en oeuvre du procédé ci-dessus, dispositif qui va être maintenant décrit plus en détail, à titre d'exemple illustratif, en référence au dessin annexé, sur lequel: - Figure 1 illustre schématiquement la desserte, par exemple chez un usager, d'un appareil téléviseur par une pluralité de sources vidéo susceptibles d'être connectées sélectivement audit appareil ; Figure 2 représente le schéma fonctionnel d'un mode de réalisation du dispositif selon l'invention pour coder le signal de la source d'image au niveau de sa réception chez l'usager ;The invention also relates to a device for implementing the above method, device which will now be described in more detail, by way of illustrative example, with reference to the attached drawing, in which: - Figure 1 schematically illustrates the serving, for example at a user's home, a television apparatus by a plurality of video sources capable of being selectively connected to said apparatus; FIG. 2 represents the functional diagram of an embodiment of the device according to the invention for coding the signal of the image source at the level of its reception at the user;
Figure 3 représente le schéma fonctionnel du dispositif de décodage au niveau du téléviseur, et - Figure 4 est un schéma de chaînage des prises Péritels des diverses sources d'image accessibles.Figure 3 represents the functional diagram of the decoding device at the level of the television, and - Figure 4 is a diagram of chaining of the sockets Perits of the various accessible image sources.
Sur la figure 1, on a représenté en TV un appareil de télévision installé par exemple chez un particulier équipé d'un dispositif de mesure d'audimétrie symbolisé en A. Un tel dispositif est bien connu et permet d'enregistrer des données relatives à l'identification de la chaîne de télévision regardée par l'usager sur son téléviseur au cours de la journée.In FIG. 1, a television set has been shown on TV, installed for example in a private home equipped with an audimetry measurement device symbolized at A. Such a device is well known and makes it possible to record data relating to the identification of the television channel watched by the user on his television during the day.
En VS1, VS2, VS3, VSn, etc.. sont symbolisées diverses sources vidéo disponibles chez l'usager, telles que, par exemple, un réseau de télévision hertzien traditionnel, un réseau de télévision câblé, un réseau de télévision par satellite, un magnétoscope, un caméscope, un vidéo-disque, une banque de données, etc..., toutes raccordées au récepteur TV via la prise Péritel de ce dernier ou chaînées jusqu'à la prise Péritel de ce dernier.In VS1, VS2, VS3, VSn, etc., various video sources available to the user are symbolized, such as, for example, a traditional terrestrial television network, a cable television network, a satellite television network, a video recorder, camcorder, video-disc, data bank, etc ..., all connected to the TV receiver via the SCART socket of the latter or linked to the SCART socket of the latter.
Conformément à l'invention, l'installation est munie, d'une part, au niveau de chaque source d'image disponible chez l'usager, d'un dispositif de codage de certaines lignes d'image et, d'autre part, au niveau du récepteur (et éventuellement du magnétoscope) , d'un dispositif de décodage des lignes codées, relié au dispositif d'audimétrie.In accordance with the invention, the installation is provided, on the one hand, at each image source available to the user, with a device for coding certain image lines and, on the other hand, at the receiver (and possibly the video recorder), a device for decoding the coded lines, connected to the audimetry device.
Sur la figure 2, on a illustré un mode de mise en oeuvre du dispositif selon l'invention pour coder le signal de la source d'image au niveau de sa réception chez l'usager, les signaux vidéo provenant de la prise Péritel 1 où sont disponibles, chez l'usager, les différentes sources vidéo VS1 à VSn.In FIG. 2, an embodiment of the device according to the invention is illustrated for coding the signal from the image source at the level of its reception at the user, the video signals coming from the Scart socket 1 where the various video sources VS1 to VSn are available to the user.
Le dispositif de codage C est constitué, dans le mode de réalisation illustré, par un multiplexeur 2 recevant par une première entrée le signal vidéo provenant de la prise Péritel l. Sur la sortie du multiplexeur 2 est disponible le signal vidéo Vout destiné au récepteur TV.The coding device C is constituted, in the illustrated embodiment, by a multiplexer 2 receiving by a first input the video signal coming from the Scart socket l. On the output of multiplexer 2 is available the video signal Vout intended for the TV receiver.
Un extracteur de synchronisation 3 associé à un dispositif 4 de recherche de lignes d'image du signal vidéo, permet de sélectionner certaines des lignes d'image pour les coder grâce à un codeur 5 dont la sortie est reliée à une seconde entrée du multiplexeur 2, l'ensemble étant géré, à la manière connue, par un microprocesseur de commande symbolisé en M. Par exemple, le dispositif 3, 4 sélectionne une, plusieurs ou la totalité des lignes d'image dites invisibles, les lignes numérotées conventionnellement 1 à 23 de la trame vidéo, pour y insérer des états binaires déterminés chargés de véhiculer des informations, à savoir et en premier lieu l'identification de la source d'images disponible sur la prise 1.A synchronization extractor 3 associated with a device 4 for searching image lines of the video signal, makes it possible to select some of the image lines to code them using an encoder 5, the output of which is connected to a second input of the multiplexer 2 , the assembly being managed, in the known manner, by a control microprocessor symbolized in M. For example, the device 3, 4 selects one, several or all of the so-called invisible image lines, the conventionally numbered lines 1 to 23 of the video frame, in order to insert therein determined binary states responsible for conveying information, namely and firstly the identification of the source of images available on take 1.
Avantageusement, le dispositif de codage C est réalisé sous la forme d'un boîtier Péritel à broches mâles/femelles qui viendra s'enficher dans la prise 1 et se substituera donc à cette dernière.Advantageously, the coding device C is produced in the form of a Scart box with male / female pins which will be plugged into the socket 1 and will therefore replace the latter.
Sur la figure 3, on a illustré le dispositif de décodageIn FIG. 3, the decoding device has been illustrated
D associé au dispositif de codage C.D associated with coding device C.
Ce dispositif de décodage D comprend un extracteur de synchronisation 3', associé à un dispositif 4' de recherche de lignes d'image du signal vidéo Vout destiné au récepteurThis decoding device D comprises a synchronization extractor 3 ', associated with a device 4' for searching image lines of the video signal Vout intended for the receiver
TV et transitant par la prise Péritel de ce dernier.TV and passing through the SCART socket of the latter.
Un décodeur 6 relié au dispositif 4' et recevant le signal Vout, permet d'envoyer sur le dispositif d'audimétrie A les informations désirées, notamment l'identification de la source Vout et sa provenance, l'ensemble étant géré, à la manière connue, par un microprocesseur M' analogue à celui du dispositif de codage C.A decoder 6 connected to the device 4 'and receiving the signal Vout, makes it possible to send to the audimetry device A the desired information, in particular the identification of the source Vout and its source, the whole being managed, in the manner known, by a microprocessor M 'analogous to that of the coding device C.
Comme le dispositif C, le dispositif D est avantageusement réalisé sous la forme d'un boîtier Péritel à broches mâles/femelles interposé entre l'entrée Péritel du récepteur TV et la prise délivrant Vout.Like the device C, the device D is advantageously produced in the form of a Scart box with male / female pins interposed between the Scart input of the TV receiver and the outlet delivering Vout.
Le multiplexeur 2 du dispositif de codage C permet d'échanger une ligne de l'image par une ligne qui contient une information codée sous forme binaire. Le dispositif 3, 4 permet de compter les lignes de la trame vidéo, de repérer la ligne zéro et de sélectionner la ou les lignes à coder.The multiplexer 2 of the coding device C makes it possible to exchange a line of the image by a line which contains information coded in binary form. The device 3, 4 makes it possible to count the lines of the video frame, to locate the zero line and to select the line or lines to be coded.
La modulation de codage des informations que l'on désire introduire dans les lignes d'image choisies peut être de n'importe quel type., par exemple DIDON.The modulation of coding of the information which it is desired to introduce into the selected image lines can be of any type, for example DIDON.
Dans l'information codée on peut bien entendu mettre par exemple le numéro ou le nom de la chaîne regardée sur le récepteur TV, qu'il s'agisse d'images reçues en temps réel ou d'images provenant d'une cassette enregistrée et restituée par le magnétoscope de l'usager. L'information vidéo pourra contenir d'autres données utiles à l'audimétrie, telles que lecture ou enregistrement, incrustation vidéo, affichage simultané de plusieurs chaînes, décryptage de chaîne codée, sous-titrage, etc.In the coded information, it is of course possible to put, for example, the number or the name of the channel watched on the TV receiver, whether these are images received in real time or images originating from a recorded cassette and played back by the user's VCR. Video information may contain other data useful for audimetry, such as playback or recording, video overlay, simultaneous display of several channels, coded channel decryption, subtitling, etc.
5 Si l'on veut, conformément à l'invention, également identifier la provenance des images enregistrées sur le magnétoscope de l'installation vidéo de l'usager, ce magnétoscope doit être muni, comme le téléviseur TV, d'un dispositif de décodage D.5 If, in accordance with the invention, one also wants to identify the source of the images recorded on the video recorder of the user's video installation, this video recorder must be equipped, like the TV television set, with a decoding device D.
10 II est à noter que le dispositif de l'invention permet de manière simple et directe de vérifier l'intégrité de l'ensemble de l'installation vidéo d'un usager et sa configuration point par point.It should be noted that the device of the invention allows a simple and direct way to verify the integrity of the entire video installation of a user and its configuration point by point.
Il est également à noter que le dispositif deIt should also be noted that the
15 l'invention, dans le cas de l'utilisation des prises Péritels en chaînage, comme illustré par la figure 4, pourra, pour tous les boîtiers (désignés C + D) associés aux sources VS1 à VSn, comporter la fonction codage et la fonction décodage, de manière à n'introduire le code d'identification de la source15 the invention, in the case of the use of Peritals sockets in chaining, as illustrated by FIG. 4, may, for all the boxes (designated C + D) associated with the sources VS1 to VSn, include the coding function and the decoding function, so as not to enter the source identification code
20 que si celui-ci n'a pas déjà été mis par un dispositif amont. De cette manière, seul le dispositif associé à la source (VSl à VSn) la plus proche du récepteur TV et générant l'image affichée sur le récepteur, code certaines lignes d'image, les dispositifs interposés entre cette source et le récepteur20 only if this has not already been put in by an upstream device. In this way, only the device associated with the source (VS1 to VSn) closest to the TV receiver and generating the image displayed on the receiver, codes certain image lines, the devices interposed between this source and the receiver
25 détectant le codage déjà effectué et n'effectuant pas un nouveau codage puisqu'ils ne sont que de simples transmetteurs.25 detecting the coding already carried out and not performing a new coding since they are only simple transmitters.
Enfin, l'invention n'est évidemment pas limitée au mode de mise en oeuvre illustré et décrit ci-dessus, mais enFinally, the invention is obviously not limited to the embodiment illustrated and described above, but in
30. couvre au contraire toutes les variantes, notamment en ce qui concerne le nombre et la nature des lignes d'image susceptibles de recevoir une information codée, ainsi que le mode de codage/décodage des informations insérées dans lesdites lignes. 30. on the contrary covers all variants, in particular as regards the number and nature of the image lines capable of receiving coded information, as well as the mode of coding / decoding of the information inserted in said lines.

Claims

R E V E N D I C A T I O N S
1. Procédé d'identification de sources d'image susceptibles d'être affichées sélectivement sur un récepteur de télévision ou enregistrées et de leur provenance à partir des diverses sources (VSl, VS2, VS3,... VSn) disponibles chez l'usager, telles que, notamment, le réseau de télévision hertzien traditionnel, un réseau de télévision câblé, un réseau de télévision par satellite, un magnétoscope, un caméscope, un vidéo-disque, une banque de données, caractérisé en ce qu'il consiste, au niveau de la réception chez l'usager du signal vidéo provenant de chacune desdites sources disponibles, à coder au moins une ligne de l'image afin d'identifier sa provenance et sa nature et, au niveau du récepteur (TV) , ou du magnétoscope, à décoder la ou les lignes d'image codées en vue de fournir à un système d'audimétrie approprié (A), en temps réel ou en différé, notamment l'identification de la source d'image disponible chez l'usager affichée sur le récepteur ou enregistrée, à un instant quelconque.1. Method for identifying image sources capable of being selectively displayed on a television receiver or recorded and their source from the various sources (VSl, VS2, VS3, ... VSn) available to the user , such as, in particular, the traditional terrestrial television network, a cable television network, a satellite television network, a video recorder, a camcorder, a video disc, a data bank, characterized in that it consists, at the level of reception at the user of the video signal coming from each of said available sources, to code at least one line of the image in order to identify its source and its nature and, at the level of the receiver (TV), or of the video recorder, decoding the coded image line or lines in order to provide an appropriate audimetry system (A), in real or delayed time, in particular the identification of the image source available to the displayed user on the reception ur or recorded at any time.
2. Dispositif pour la mise en oeuvre du procédé selon la revendication 1, caractérisé en ce qu'il est constitué, d'une part, au niveau de chaque source d'image disponible (VSl, VS2, VS3, ... VSn), d'un dispositif (C) de codage de certaines lignes d'image et, d'autre part, au niveau de la réception (TV) ou de l'enregistrement, d'un dispositif (D) de décodage des lignes codées, relié au système d'audimétrie (A) . 2. Device for implementing the method according to claim 1, characterized in that it is constituted, on the one hand, at the level of each available image source (VS1, VS2, VS3, ... VSn) , a device (C) for coding certain image lines and, on the other hand, at the reception (TV) or recording level, a device (D) for decoding the coded lines, connected to the audimetry system (A).
3. Dispositif suivant la revendication 2, caractérisé en ce que le dispositif de codage (C) comprend un multiplexeur (2) comportant une première entrée recevant ladite source d'image et une sortie délivrant le signal destiné audit récepteur (TV) , un extracteur de synchronisation (3) , un dispositif (4) de recherche de lignes d'image, un codeur (5) relié à une seconde entrée dudit multiplexeur (2) et un microprocesseur de commande (M) .3. Device according to claim 2, characterized in that the coding device (C) comprises a multiplexer (2) comprising a first input receiving said image source and an output delivering the signal intended for said receiver (TV), an extractor synchronization (3), a device (4) for searching image lines, an encoder (5) connected to a second input of said multiplexer (2) and a control microprocessor (M).
4. Dispositif suivant la revendication 2, caractérisé en ce que le dispositif de décodage (D) comprend un extracteur de synchronisation (3'), un dispositif (4') de recherche de lignes d'image, un décodeur (6) relié audit système d'audimétrie (A) et un microprocesseur de commande (M').4. Device according to claim 2, characterized in that the decoding device (D) comprises a synchronization extractor (3 '), a device (4') for searching for image lines, a decoder (6) connected to said audimetry system (A) and a control microprocessor (M ').
5. Dispositif suivant la revendication 3 ou 4, caractérisé en ce que lesdits dispositifs de codage (C) et de décodage (D) sont réalisés sous la forme de boîtier Péritel à bornes mâles/femelles, enfichés sur les prises Péritel délivrant les signaux vidéo disponibles, d'une part, et la prise Péritel du récepteur (TV) ou de l'enregistreur vidéo, d'autre part. 5. Device according to claim 3 or 4, characterized in that said coding (C) and decoding (D) devices are produced in the form of a Scart box with male / female terminals, plugged into the Scart sockets delivering the video signals available, on the one hand, and the Scart socket on the receiver (TV) or video recorder, on the other.
6. Dispositif pour la mise en oeuvre du procédé suivant la revendication 1, appliqué à une liaison en chaînage des sources d'image accessibles (VSl, VS2, VS3, ... VSn, ) , caractérisé en ce qu'il est constitué, au niveau de chaque source, d'un dispositif (C + D) de codage de certaines lignes d'image et de décodage desdites lignes interdisant le codage lorsqu'il est déjà réalisé au niveau d'une source en amont. 6. Device for implementing the method according to claim 1, applied to a chaining link of accessible image sources (VS1, VS2, VS3, ... VSn,), characterized in that it is constituted, at each source, a device (C + D) for coding certain image lines and for decoding said lines preventing coding when it is already carried out at a source upstream.
PCT/FR1995/000487 1994-04-14 1995-04-13 Method of identification of image sources for audience monitoring and device for carrying out said method WO1995028778A1 (en)

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FR9404756A FR2718917B1 (en) 1994-04-14 1994-04-14 Method for identifying image sources for audimetry purposes and device for implementing it.
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FR2780225A1 (en) * 1998-06-23 1999-12-24 Thomson Multimedia Sa System for acquisition and transmission of information about audience preferences of TV channels
FR2887105B1 (en) * 2005-06-10 2007-08-24 Tdf Sa METHOD FOR MARKING COMPONENTS OF A MULTIPLEX SIGNAL, CORRECTION EQUIPMENT, SIGNAL AND CORRESPONDING COMPUTER PROGRAM
US9936249B1 (en) 2016-11-04 2018-04-03 The Nielsen Company (Us), Llc Methods and apparatus to measure audience composition and recruit audience measurement panelists

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EP0195639A2 (en) * 1985-03-18 1986-09-24 Mewes, Thomas Improvements relating to television audience research systems
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EP0382996A1 (en) * 1989-02-15 1990-08-22 Srg Schweizerische Radio- Und Fernsehgesellschaft Method and system for ascertaining the consumption habits of a test population
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FR2718917A1 (en) 1995-10-20
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