FR2555383A1 - Device for automatic monitoring of radio or television receivers for the purposes of audience statistics studies of various transmitter stations - Google Patents

Device for automatic monitoring of radio or television receivers for the purposes of audience statistics studies of various transmitter stations Download PDF

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Publication number
FR2555383A1
FR2555383A1 FR8318621A FR8318621A FR2555383A1 FR 2555383 A1 FR2555383 A1 FR 2555383A1 FR 8318621 A FR8318621 A FR 8318621A FR 8318621 A FR8318621 A FR 8318621A FR 2555383 A1 FR2555383 A1 FR 2555383A1
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France
Prior art keywords
receiver
sound
radio
monitored
monitoring device
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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Withdrawn
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FR8318621A
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French (fr)
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BARRAULT CHRISTIAN
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BARRAULT CHRISTIAN
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Priority to FR8318621A priority Critical patent/FR2555383A1/en
Priority to IT68165/84A priority patent/IT1180145B/en
Priority to IT8454070U priority patent/IT8454070V0/en
Publication of FR2555383A1 publication Critical patent/FR2555383A1/en
Withdrawn legal-status Critical Current

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    • 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
    • H04H60/56—Arrangements characterised by components specially adapted for monitoring, identification or recognition covered by groups H04H60/29-H04H60/54
    • H04H60/58—Arrangements characterised by components specially adapted for monitoring, identification or recognition covered by groups H04H60/29-H04H60/54 of audio
    • 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
    • H04H60/40—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 time
    • 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
    • H04H60/44—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 stations

Abstract

The invention relates to a logic electronic arrangement intended to identify, by sound recognition, the radio or television station picked up by a receiver. It consists of a pick-up 1 and 2 for the sound emitted by the monitored receiver, a built-in receiver controlled by the device and serving as reference 3 and 4, a microprocessor with its associated logic 5 and 6 enabling a statistical comparison to be made of the two sources so as to determine their possible identity, a dating-clock 7 making it possible to date precisely the result of the test and a control for locking the receiver onto a preset transmitter 8 in order to initialise the process. The arrangement according to the invention is particularly intended for the automatic monitoring of radio or television receivers for the purposes of audience statistics studies.

Description

La présente invention concerne un dispositif de surveillance automatique de récepteurs radio ou télévision à fin d'études statistiques d'audience des différentes stations émettrices
Cette surveillance est actuellement effectuée par deux moyens différents - Un moyen manuel consistant en une étude des déclarations quotidiennes d'un certain nombre d'auditeurs , déclarations faites sur imprimés spéciaux recueillis par voie postale ou oralement à des enquêteurs les interrogeant par téléphone - Un moyen automatique consistant en un appareil branché en permanence directement à l'intérieur du poste récepteur à surveiller
Ces deux méthodes nécessitent soit un délai de réponse long et peu fiable soit une mise en place difficile et très onéreuse
Le montage selon l'invention permet d'obtenir un dispositif remédiant à ces inconvénients . I1 permet en effet , comme le second moyen , un relevé immédiat de l'information cherchée mais il ne nécessite aucun montage préalable interne au poste surveillé donc aucune manipulation requérant l'intervention d'un spécialiste en électronique
Le montage selon l'invention reçoit le son diffusé par le récepteur à surveiller et le compare , selon des méthodes statistiques , au son d'une station connue reçue par un récepteur incorporé à l'appareil .Différents essais faits avec différentes stations de référence permettent de connaitre la station recule par le récepteur surveillé
La figure 1 représente un schéma synoptique du dispositif selon l'invention
La figure 2 représente un schéma détaillé des parties (2) et (4) du schéma général
La figure 3 représente un schéma détaillé de la partie (5) du schéma général
La figure 4 représente une variante particulière des parties (1) et (2) du schéma général
Le dispositif représenté à la figure 1 se compose de 3 parties principales
- Le captage (1) et la mise en forme 12) du son provenant du récepteur à surveiller
- Le pilotage (6) d'un récepteur (3) et la mise en forme (4) du son qui en provient
- La comparaison (5) des deux émissions reçues par l'intermédiaire des 2 parties précédentes et l'identification de la station captée par le récepteur surveillé .The present invention relates to a device for automatically monitoring radio or television receivers at the end of statistical audience studies of the various transmitting stations.
This surveillance is currently carried out by two different means - A manual means consisting of a study of the daily statements of a certain number of listeners, statements made on special forms collected by post or orally to investigators questioning them by telephone - automatic consisting of a device permanently connected directly inside the receiving station to be monitored
These two methods require either a long and unreliable response time or a difficult and very expensive implementation
The assembly according to the invention makes it possible to obtain a device overcoming these drawbacks. I1 indeed allows, like the second means, an immediate statement of the information sought but it does not require any prior internal mounting to the monitored station therefore no manipulation requiring the intervention of an electronics specialist
The assembly according to the invention receives the sound broadcast by the receiver to be monitored and compares it, according to statistical methods, to the sound of a known station received by a receiver incorporated in the device. Different tests made with different reference stations allow to know the station back by the monitored receiver
FIG. 1 represents a block diagram of the device according to the invention
Figure 2 shows a detailed diagram of parts (2) and (4) of the general diagram
Figure 3 shows a detailed diagram of part (5) of the general diagram
FIG. 4 represents a particular variant of parts (1) and (2) of the general diagram
The device shown in Figure 1 consists of 3 main parts
- The capture (1) and the shaping 12) of the sound coming from the receiver to be monitored
- Control (6) of a receiver (3) and shaping (4) of the sound that comes from it
- The comparison (5) of the two transmissions received through the 2 previous parts and the identification of the station received by the monitored receiver.

Deux fonctions supplémentaires sont adjointes :
- Une horloge (7) permettant de dater les identifications faites , donc de reconstituer la séquence d'écoute du récepteur surveillé
- Une commande d'auto étalonnage de l'appareil (8) permettant de compenser les différences de temps entre les parties (1) et (2) d'une part et (3) (4) (6) d'autre part dans la captation et l'acheminement du son
La figure 2 montre le schéma typique du montage réalisé dans les parties (2) et (4) du schéma général qui doivent être identiques .I1 se compose d'un filtrage passe-bande 80 - 4000 Hz(10) et d'un convertisseur analogique numérique (11)
Le son entre sous forme d'une variation de tension non périodique au point(9). Le but de cette partie du montage est de fournir , à un instant donne , une valeur numérique représentant l'amplitude de la tension observée en(3). Two additional functions are added:
- A clock (7) allowing to date the identifications made, therefore to reconstruct the listening sequence of the monitored receiver
- A self-calibration command of the device (8) allowing to compensate for the time differences between parts (1) and (2) on the one hand and (3) (4) (6) on the other hand in sound capture and routing
Figure 2 shows the typical diagram of the assembly carried out in parts (2) and (4) of the general diagram which must be identical. I1 consists of a bandpass filtering 80 - 4000 Hz (10) and a converter analog digital (11)
The sound enters in the form of a non-periodic voltage variation at point (9). The aim of this part of the assembly is to provide, at a given instant, a numerical value representing the amplitude of the voltage observed in (3).

Les 2 numérisations effectuées dans les parties (2) et (4) du schéma général doivent être simultanées . La commande de conversion (14) sera donc commune pour les 2 sousensembles . La conversion étant déclenchée , la grandeur analogique (9) filtrée en (10) pour éviter les fréquences basses parasites et les fréquences d'écho supérieures à 4000 Hz va être échantillonnée puis numérisée en (11) . Le temps d'échantillonnage de quelques nano-secondes , en regard de la fréquence maximale retenue pour l'étude (4000 Hz) nous garantit une transformation d'une tension (9) ponctuelle .La valeur numérique binaire (12) , observée lorsque le signal (13) annonce la fin de conversion représente donc pour chacun des ensembles (2) et (4) du schéma général la valeur numérisée de la tension provenant du son capté d'une part et du son du récepteur d'autre part
La figure 3 explicite les phases logiques consécutives exécutées par le montage appelé (5) sur la figure 1
Cet ensemble se compose d'un dispositif de mise en mémoire séquentielle (18) piloté par un quartz (19) et d'un comparateur statistique (17) ainsi que de 2 mémoires (A) et (B).The 2 digitizations carried out in parts (2) and (4) of the general diagram must be simultaneous. The conversion command (14) will therefore be common for the 2 subsets. The conversion being triggered, the analog quantity (9) filtered in (10) to avoid the parasitic low frequencies and the echo frequencies higher than 4000 Hz will be sampled then digitized in (11). The sampling time of a few nano-seconds, compared to the maximum frequency chosen for the study (4000 Hz) guarantees us a transformation of a point voltage (9). The binary digital value (12), observed when the signal (13) announces the end of conversion therefore represents for each of the sets (2) and (4) of the general diagram the digitized value of the voltage coming from the sound picked up on the one hand and the sound of the receiver on the other hand
Figure 3 explains the consecutive logical phases executed by the assembly called (5) in Figure 1
This set consists of a sequential memory device (18) controlled by a quartz (19) and a statistical comparator (17) as well as 2 memories (A) and (B).

Une fonction de mise en mémoire (18) , cadencée par un quartz (19) provoque par la commande (14) , à intervalles de temps égaux , correspondant à une fréquence au moins égale à 16000 Hz , une numérisation des signaux R et B dans les parties (2) et (4) de la figure 1 et stocke ces valeurs dans deux mémoires séquentielles (A) et (B) où chaque valeur observée correspondra à un instant donné .Un compteur est associé à cette fonction de mise en mémoire
Lorsque 1024 valeurs ont été stockées dans chacune des 2 mémoires (A) et (B) , la fonction comparateur statistique (17) est déclanchée
Cette fonction lit séquentiellement , et en parallèle les 2 mémoires (A) et (B) . Elle compare les deux séries afin de déterminer si elles peuvent être considérées comme semblables ou différentes .Cette comparaison est effectuée au moyen d'un algorithme de calcul constant utilisant la méthode statistique de corrélation
Il faut remarquer que les 2 mémoires(A)et(a) peuvent être lues de façon parfaitement synchrone (les 2 premières valeurs ensembles , puis les deux suivantes , etc...A storage function (18), clocked by a quartz (19) causes by the command (14), at equal time intervals, corresponding to a frequency at least equal to 16000 Hz, a digitization of the R and B signals in parts (2) and (4) of Figure 1 and stores these values in two sequential memories (A) and (B) where each observed value will correspond to a given instant. A counter is associated with this memory function
When 1024 values have been stored in each of the 2 memories (A) and (B), the statistical comparator function (17) is triggered
This function reads the 2 memories (A) and (B) sequentially. It compares the two series to determine whether they can be considered to be similar or different. This comparison is carried out using a constant calculation algorithm using the statistical correlation method.
Note that the 2 memories (A) and (a) can be read perfectly synchronously (the first 2 values together, then the next two, etc ...

ou décalée (père valeur de A avec 2ème valeur de B , puis 2ème de A avec 3ème de B , etc... ) , le décalage étant fourni au comparateur statistique de façon externe dans une mémoire externe (20) initialisée lors de la phase d' étalonnage automatique de l'appareil . Ce décalage peemetde tenir compte du déphasage des deux sons comparés , son surveillé et son de référence
Le comparateur statistique(17)sera obtenu en utilisant une
ROM associée à un microprocesseur
La commande d'auto étalonnage (8) consiste en un circuit complémentaire remplissant les fonctions suivantes
- calage du récepteur piloté sur une station définie à l'avance . (Le récepteur surveillé aura été réglé auparavant sur cette même station)
- déclanchement de la fonction mise en mémoire (18) de la Figure 3
- déclanchement du comparateur statistique avec un décalage 0 puis avec différents décalages positifs ou négatifs pour trouver le meilleur résultat de comparaison -
- mise dans la mémoire (20) figure 3 de la valeur du décalage ayant fourni le meilleur résultat . Ce circuit complémentaire peut-être réalisé en logique cablée ou au moyen d'une ROM associée à un microprocesseur
Le son est capté par branchement direct sur la prise magnétophone du récepteur surveillé ou par un micro placé devant ce récepteur
La figure 4 présente une variante des points (1) et (2) de la figure 1 . Elle se compose d'un émetteur récepteur ondes courtes (21) , d'un décodeur (22) , d'un convertisseur analogique numérique (23) , d'un filtre passebande 80Hz - 4000Hz (24) et d'une prise de son (25) consistant en un branchement ou un micro . Dans cette variante , un élément supplémentaire (21) est utilisé I1 s'agit d'un émetteur récepteur ondes courtes . Un autre émetteur -récepteur identique est monté à la place des éléments (1) et (2) dans le schéma général . Ceci permet de déplacer le captage du son et sa numérisation assez loin du dispositif de comparaison . La commande de conversion (14) est transmise par l'émetteur accolé au dispositif de comparaison , précédée d'un code . Le code est reconnu par le décodeur(22)qui laisse alors passer la commande pour le convertisseur analogique numérique (23)
Le résultat de la conversion est transmis par l'émetteur (21) en mode séquentiel au récepteur accolé au dispositif central de comparaison
Ce dispositif de captage du son éloigné peut-être multiplié
Chaque dispositif a un décodeur reconnaissant un code différent . Ceci permet d'utiliser plusieurs dispositifs de captage avec un seul dispositif de comparaison
Ce dispositif selon l'invention est plus particulièrement destiné à être utilisé pour des mesures d'audience des différents postes de radio et de télévision dans le foyer or offset (father value of A with 2nd value of B, then 2nd of A with 3rd of B, etc.), the offset being supplied to the statistical comparator externally in an external memory (20) initialized during the phase automatic calibration of the device. This offset may take into account the phase difference of the two compared sounds, its monitored and its reference
The statistical comparator (17) will be obtained using a
ROM associated with a microprocessor
The self-calibration command (8) consists of a complementary circuit fulfilling the following functions
- setting the receiver controlled on a station defined in advance. (The monitored receiver will have been previously set to this same station)
- triggering of the memory function (18) of Figure 3
- triggering of the statistical comparator with an offset 0 then with different positive or negative offsets to find the best comparison result -
- Put in the memory (20) Figure 3 of the value of the offset having provided the best result. This additional circuit can be performed in wired logic or by means of a ROM associated with a microprocessor
The sound is picked up by direct connection to the tape recorder socket of the monitored receiver or by a microphone placed in front of this receiver.
FIG. 4 presents a variant of the points (1) and (2) of FIG. 1. It consists of a shortwave transceiver (21), a decoder (22), an analog digital converter (23), a 80Hz - 4000Hz bandpass filter (24) and a sound recording (25) consisting of a connection or a microphone. In this variant, an additional element (21) is used. It is a short wave transceiver. Another identical transmitter-receiver is mounted in place of elements (1) and (2) in the general diagram. This makes it possible to move the sound capture and its digitization far enough from the comparison device. The conversion command (14) is transmitted by the transmitter attached to the comparison device, preceded by a code. The code is recognized by the decoder (22) which then lets the command pass for the analog-to-digital converter (23)
The result of the conversion is transmitted by the transmitter (21) in sequential mode to the receiver attached to the central comparison device.
This device for capturing distant sound can be multiplied
Each device has a decoder recognizing a different code. This allows multiple capture devices to be used with a single comparison device
This device according to the invention is more particularly intended to be used for audience measurements of the various radio and television sets in the home.

Claims (5)

REVENDICATIONS 1 ) Dispositif pour effectuer la surveillance automatique de récepteurs radio ou télévision afin d'identifier les.stations ou fréquences reçues à un instant donné, caractérisé en ce qu'il comporte une partie de captation du son (1) émis par le récepteur, un récepteur incorporé (3) piloté par microprocesseur (6) et servant de référence, et un microprocesseur et sa logique spécifique permettant de comparer les sons reçus du récepteur surveillé (1) et du récepteur de référence (3), filtrés et numérisés en (2) et (4), selon la méthode statistique de corrélation (5).CLAIMS 1) Device for performing automatic monitoring of radio or television receivers in order to identify the stations or frequencies received at a given instant, characterized in that it comprises a part for capturing the sound (1) emitted by the receiver, a built-in receiver (3) controlled by a microprocessor (6) and serving as a reference, and a microprocessor and its specific logic making it possible to compare the sounds received from the monitored receiver (1) and the reference receiver (3), filtered and digitized in ( 2) and (4), according to the statistical correlation method (5). 20) Dispositif selon la revendication 1, caractérisé en ce qu'il comporte des organes permettant d'obtenir une numérisation simultanée des sons captés à partir du récepteur surveillé (1) et du récepteur de référence (3). 20) Device according to claim 1, characterized in that it comprises members making it possible to obtain a simultaneous digitization of the sounds picked up from the monitored receiver (1) and the reference receiver (3). 30) Dispositif selon la revendication 1, caractérisé en ce qu'il est muni d'organes permettant de mesurer automatiquement l'écart de temps séparant, d'une part, un son capté à partir du récepteur surveillé (1) et d'autre par, un son capté à partir du récepteur de référence (3), et de stocker cet écart de temps dans une mémoire annexe (20) et d'organes utilisant cette mesure pour comparer deux sources sonores en tenant compte de leur non-simultanéité 30) Device according to claim 1, characterized in that it is provided with members making it possible to automatically measure the time difference separating, on the one hand, a sound picked up from the monitored receiver (1) and on the other hand par, a sound picked up from the reference receiver (3), and to store this time difference in an additional memory (20) and of organs using this measurement to compare two sound sources taking into account their non-simultaneity 40) Dispositif selon la revendication 1, caractérisé en ce que le capteur de son et sa mise en forme numérique (1) et (2) sont indépendants du dispositif principal de surveillance (3, 4, 5, 6, 7, 8). 40) Device according to claim 1, characterized in that the sound sensor and its digital formatting (1) and (2) are independent of the main monitoring device (3, 4, 5, 6, 7, 8). 5 ) Dispositif selon la revendication 4, caractérisé en ce que les informations numériques obtenues sur un capteur séparé (23) sont transmises sur une fréquence fixe au dispositif principal de surveillance. 5) Device according to claim 4, characterized in that the digital information obtained on a separate sensor (23) is transmitted on a fixed frequency to the main monitoring device. 6 ) Dispositif selon l'une quelconque des revendications 4 et 5, caractérisé en ce que le capteur de son et son dispositif de mise en forme numérique sont équipés d'un décodeur (22) permettant au capteur de son à son dispositif associé (23, 24, 25) de reconnaître s'il est destinataire ou non d'une commande issue du disposoitif central de surveillance et de n'exécuter cette commande que dans ce cas. 6) Device according to any one of claims 4 and 5, characterized in that the sound sensor and its digital shaping device are equipped with a decoder (22) allowing the sound sensor to its associated device (23 , 24, 25) to recognize whether or not he is the recipient of an order from the central monitoring device and to execute this order only in this case. 70) Dispositif selon l'une quelconque des -reven- dications 4, 5 et 6, caractérisé en ce que le dispositif central de surveillance possède un système de codage de commandes permettant de déclencher à distance un capteur de son et son dispositif de mise en forme numérique associé (23). 70) Device according to any one of claims 4, 5 and 6, characterized in that the central monitoring device has a command coding system making it possible to remotely trigger a sound sensor and its setting device. associated digital form (23). 80) Dispositif selon la revendication 7, caractérisé en ce que le dispositif central de surveillance possède plusieurs mémoires (20) et plusieurs codes de commande de système de captage du son (23) et qu'il peut ainsi surveiller à tour de rôle plusieurs récepteurs télévision et/ou radio.  80) Device according to claim 7, characterized in that the central monitoring device has several memories (20) and several control codes of sound pickup system (23) and that it can thus monitor in turn several receivers television and / or radio.
FR8318621A 1983-11-23 1983-11-23 Device for automatic monitoring of radio or television receivers for the purposes of audience statistics studies of various transmitter stations Withdrawn FR2555383A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FR8318621A FR2555383A1 (en) 1983-11-23 1983-11-23 Device for automatic monitoring of radio or television receivers for the purposes of audience statistics studies of various transmitter stations
IT68165/84A IT1180145B (en) 1983-11-23 1984-11-22 DEVICE FOR AUTOMATIC SURVEILLANCE OF RADIO OR TELEVISION RECEIVERS FOR THE PURPOSE OF IDENTIFYING THE STATIONS OR FREQUENCIES RECEIVED BY THEM PARTICULARLY FOR THE DETECTION OF PUBLIC STATISTICAL DATA OF THE DIFFERENT ISSUERS
IT8454070U IT8454070V0 (en) 1983-11-23 1984-11-22 DEVICE FOR AUTOMATIC SURVEILLANCE OF RADIO OR TELEVISION RECEIVERS FOR THE PURPOSE OF IDENTIFYING THE STATIONS OR FREQUENCIES RECEIVED BY THEM PARTICULARLY FOR THE DETECTION OF PUBLIC STATISTICAL DATA OF THE DIFFERENT ISSUERS

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FR8318621A FR2555383A1 (en) 1983-11-23 1983-11-23 Device for automatic monitoring of radio or television receivers for the purposes of audience statistics studies of various transmitter stations

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US8763022B2 (en) 2005-12-12 2014-06-24 Nielsen Company (Us), Llc Systems and methods to wirelessly meter audio/visual devices
US9015740B2 (en) 2005-12-12 2015-04-21 The Nielsen Company (Us), Llc Systems and methods to wirelessly meter audio/visual devices
US9055336B2 (en) 2006-03-31 2015-06-09 The Nielsen Company (Us), Llc Methods, systems and apparatus for multi-purpose metering
US9185457B2 (en) 2006-03-31 2015-11-10 The Nielsen Company (Us), Llc Methods, systems and apparatus for multi-purpose metering
US8151291B2 (en) 2006-06-15 2012-04-03 The Nielsen Company (Us), Llc Methods and apparatus to meter content exposure using closed caption information
US9124769B2 (en) 2008-10-31 2015-09-01 The Nielsen Company (Us), Llc Methods and apparatus to verify presentation of media content
US10469901B2 (en) 2008-10-31 2019-11-05 The Nielsen Company (Us), Llc Methods and apparatus to verify presentation of media content
US11070874B2 (en) 2008-10-31 2021-07-20 The Nielsen Company (Us), Llc Methods and apparatus to verify presentation of media content
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IT8468165A0 (en) 1984-11-22
IT8468165A1 (en) 1986-05-22
IT1180145B (en) 1987-09-23

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