GB1574964A - Television programme selection monitoring - Google Patents

Television programme selection monitoring Download PDF

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Publication number
GB1574964A
GB1574964A GB857377A GB857377A GB1574964A GB 1574964 A GB1574964 A GB 1574964A GB 857377 A GB857377 A GB 857377A GB 857377 A GB857377 A GB 857377A GB 1574964 A GB1574964 A GB 1574964A
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GB
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Application
Patent type
Prior art keywords
receiver
television receiver
signals
device
switched
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.)
Expired
Application number
GB857377A
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.)
INFAS INST fur ANGEWANDTE SOZI
INFAS INSTITUT fur ANGEWANDTE SOZIALWISSENSCHAFT GmbH
Original Assignee
INFAS INST fur ANGEWANDTE SOZI
INFAS INSTITUT fur ANGEWANDTE SOZIALWISSENSCHAFT GmbH
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

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04HBROADCAST COMMUNICATION
    • H04H60/00Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
    • H04H60/35Arrangements 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
    • H04H60/38Arrangements 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
    • H04H60/41Arrangements 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
    • H04H60/43Arrangements 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

Description

(54) IMPROVEMENTS IN TELEVISION PROGRAMME SELECTION MONITOR (71) We, INFAS INSTITUT FUR ANGEWANDTE SOZIALWISSENSCHAFT GMBH, a Company duly organised under the Laws of the Federal Republic of Germany, of Margarethenstrasse 1, 5300 Bonn-Bad Godesberg, Federal Republic of Germany, do hereby declarethe invention, for which we pray that a Patent may be granted to us, and the method by which it is to be performed, to be particularly described in and by the following statement:: The invention relates to a device for detecting and indicating information on television viewer behaviour and programme selection, the device consisting of an AC mains power unit and a data detector with an electronic memory connected to an input logical circuit and an output logical circuit, the input logical circuit being connected to a clock, a sender-station selector and a vieweroperated selector switch unit, the device also having an electronic control unit for controlling all the processes.

Devices are known which identify the sender station chosen by the viewer of a television receiver, this being done by measuring the frequency to which the tuner of the television receiver has been adjusted. Other known devices detect the selector switches which the viewer has actuated, or the position of this selector switch. But in order to ensure that there devices reliably detect the relevant data, it is necessary to interfere technically to a considerable degree with the television receiver and this not only makes the installation of the detecting device in the television receiver a considerable operation, but also involves an undesirable interference with private property.

The construction of the known devices makes this kind of interference necessary, if accurate results are to be obtained.

The problem tackled in the present invention is to avoid the necessity of interfering with the viewer's television receiver, this being obtained by constructing the detector in such a way that the desired information on viewer switching behaviour is detected accurately and reliably without it being necessary to interfere technically in any way with the viewer's television receiver.

According to the invention there is provided a device for monitoring selection of channels by a viewer of a multi-channel television receiver, the device being separate from such receiver and arranged for interposition between a receiver antenna and an antenna input terminal of a receiver, comprising channel selector means operable by a viewer, a clock, and memory means for recording information provided by the selector means and the clock, wherein the selector means includes a tuner, an input signal connection for enabling the tuner to be connected to an antenna, a frequency convertor adapted to convert the signals from the tuner into signals of a predetermined frequency range, and an output signal connection for enabling signals from the convertor to be supplied to an antenna input terminal of a receiver.

In the first version of the invention the sender-station detector has its own station selector in the form of a diode tuner equipped with a set of viewer-operated selector switches, this set being combined with a further set of selector switches electrically connected to the input logical circuit, the station selector having an input terminal connected to the antenna of the television receiver, a converter being interposed between the station selector and the television receiver, the converter transforming the antenna signals delivered by the station selector into a certain television channel or television frequency range and delivering the transformed signals over a cable to the antenna socket of the television receiver.

In the operation of the detector it is necessary to determine whether the television receiver is really switched on, or not. To obtain this information the device according to the invention is arranged so that in addition to the sender-station detector, the device has a sensor acting as a switch-on detector, for de tecting whether the television receiver has been switched on, or not, the senser having an os cillation circuit tuned to the line frequency of the television receiver and having an amplifier for amplifying the signals delivered by the os cillation circuit, a memory unit for storing these signals, and an electronic switch connected to the input logical circuit.

Nowadays a considerable percentage of television receivers are equipped with remote control, and it is desirable, in further develop ment of the invention, to ensure that the de tector operates without inconveniencing viewers who are using remote control for their television receivers.

Further details and advantages of the present invention may be derived from the following description of several examples, and with the help of the drawing, in which: Figure 1 is a block circuit diagram of a de vice according to the invention for detecting and indicating technical information on tele vision viewer behaviour and programme selec tion.

Figure 2 shows details of the sender-station detector of the device shown in Figure 1.

Figure 3 illustrates an extra switch-on de tector for the device shown in Figures 1 and 2.

In the drawing corresponding parts have the same index numbers.

The block circuit diagram of Figure 1 shows the circuit units of the device according to the invention as blocks which are connected to gether electrically as indicated. The device has a power supply unit 1 for connection to the AC mains 2. The power supply unit 1 supplies DC current to all the circuit units of the device according to the invention. For the sake of simplicity the electric leads used for this pur pose are not shown in the diagram.

Further important circuit units comprise an input logical circuit 3, an electronic memory unit 4, an output logical unit 5, a clock 6, a central control unit 7, a viewer-operated selec tor switch unit 8 and a sender-station detector 9.

The input logical circuit 3 has input ter minals 10, 11, 12 feeding signals to the input logical circuit 3 from the viewer-operated selector switch unit 8, the sender-station de -tector 9 and the clock 6, which can for example be a quartz clock. The input logical circuit 3 detects changes of state in the viewer-operated selector switch unit 8 and in the sender-station detector 9, delivering signals, combined with a time signal from the clock 6, to the electronic memory unit 4.

After processing these signals, the electronic memory unit 4 delivers signals to the output logical unit 5. The central control unit 7 is connected to the input logical circuit 3, the electronic memory unit 4, the output logical unit 5 and the clock 6. The central control unit 7 controls all the functions of the device on the basis of periodic time signals delivered by the clock6. The output logical unit 5 is connected over a cable 13 to a "post-modem" in such a way that when interrogated the output logical unit 5 delivers the memorized data on the basis of the postal standard.

The sender-station detector 9 can be constructed in either of two alternative ways, which are represented in Figures 2 and 3.

The first version of the sender-station detector 9 is shown in Figure 2. In this version the sender-station detector 9 has its own station selector 20 in the form of a diode tuner with a set of viewer-operated selector switches 21, which are themselves combined with further selector switches 23 connected to the input logical circuit 3. The station-selector 20 is connected over its input terminal 24 to the antenna of the television receiver 27, the station selector 20 being adjusted to agree with the transmission frequencies of the locally operative television senders.The station selector 20 delivers signals to a converter 25 which converts the received signals into a certain television channel or television frequency range and delivers the converted signals over a cable 26 to the antenna socket of the television receiver 27, which is tuned to the output fre quency of the converter 25. When the viewer selects a programme, actuation of the further selector switches 23 applies signals to the electronic memory unit 4. After transmission over the "post-modem" to the central exchange (not shown) the signals are decoded and indicate the sender station which has been engaged by the television receiver 27.

In order to determine whether the television receiver 27 is switched on, or not, a switch-on detector can be used of the kind shown in detail in Figure 3. The switch-on detector has a coil 30 which responds to the 15 625 kHz signal of the line transformer with which a conventional television receiver is equipped. The signal delivered by the coil 30 is encoded and stored in a memory unit to indicate that the television receiver has been switched on. The switch-on detector is arranged as follows: In addition to the sender-station detector 9 shown in Figures 1 and 2, the television receiver 27 is equipped with a switch-on detector which has an oscillation circuit tuned to the line frequency of the television receiver, the switch-on detector comprising the coil 30 and a capacitor C1. The oscillation circuit is connected to an operational amplifier OPl, whose amplification is determined by the ratio between two resistors R2 and Rl. The operational amplifier OP1 delivers signals to a memory unit consisting of a diode Dl, a capacitor C2 and a resistor R3. The memory unit is connected to an electronic switch consisting of a resistor R4, a transistor Tl and a resistor R5. The switchon detector is connected over a lead 31 to the in put logical circuit 3.

Detection that the television receiver has been switched on is obtained as follows: The coil 30, together with the capacitor Cl, forms an oscillation circuit tuned to the line frequency. When this oscillation circuit receives a signal, this is transmitted to the operational amplifier Opt, which amplifies the signal in the ratio of resistors R2 and R1. The amplified signals are rectified by the diode D1 of the memory unit, the resulting DC current charging capacitor C2 up to a voltage U, which is applied over resistor R4 to the base of transistor Tl, making the transistor conductive, The current flowing over transistor T1 allows the voltage U across resistor 5 to rise to about 4 volts.This voltage is stored and is evaluated as indicating that the television receiver has been switched on. Subsequently after the television receiver has been switched off, so that the coil is no longer receiving a signal, the resistor R3 discharges capacitor C2. Consequently transistor Tl becomes non-conductive and the voltage U across resistor 5 falls to almost zero. This fact is stored are evaluated as an indication that the television receiver has been switched off.

WHAT WE CLAIM IS: 1. A device for monitoring selection of channels by a viewer of a multi-channel television receiver, the device being separate from such receiver and arranged for interposition between a receiver antenna and an antenna input terminal of a receiver, the device comprising channel selector means operable by a viewer, a clock, and memory means for recording information provided by the selector means and the clock, wherein the selector means includes a tuner, an input signal connection for enabling the tuner to be connected to an antenna, a frequency convertor adapted to convert the signals from the tuner into signals of a predetermined frequency range, and an output signal connection for enabling signals from the convertor to be supplied to an antenna input terminal of a receiver.

2. The device as claimed in claim 1 and including an oscillator tuned to a standard receiver line frequency, and means for indicating whether the oscillator is energised whereby to indicate that the receiver is switched on.

3. Device according to Claims 1 and 2, characterised in that in addition to the senderstation detector, the device has a sensor acting as a switch-on detector, for detecting whether the television receiver has been switched on, or not, the senser having an oscillation circuit tuned to the line frequency of the television receiver and having an amplifier for amplifying the signals delivered by the oscillation circuit, a memory unit for storing these signals, and an electronic switch connected to the input logical circuit.

4. Device for detecting and indicating information on television viewer behaviour and programme selection, substantially as hereinbefore described with reference to the accompanying drawings.

**WARNING** end of DESC field may overlap start of CLMS **.

Claims (4)

**WARNING** start of CLMS field may overlap end of DESC **. put logical circuit 3. Detection that the television receiver has been switched on is obtained as follows: The coil 30, together with the capacitor Cl, forms an oscillation circuit tuned to the line frequency. When this oscillation circuit receives a signal, this is transmitted to the operational amplifier Opt, which amplifies the signal in the ratio of resistors R2 and R1. The amplified signals are rectified by the diode D1 of the memory unit, the resulting DC current charging capacitor C2 up to a voltage U, which is applied over resistor R4 to the base of transistor Tl, making the transistor conductive, The current flowing over transistor T1 allows the voltage U across resistor 5 to rise to about 4 volts.This voltage is stored and is evaluated as indicating that the television receiver has been switched on. Subsequently after the television receiver has been switched off, so that the coil is no longer receiving a signal, the resistor R3 discharges capacitor C2. Consequently transistor Tl becomes non-conductive and the voltage U across resistor 5 falls to almost zero. This fact is stored are evaluated as an indication that the television receiver has been switched off. WHAT WE CLAIM IS:
1. A device for monitoring selection of channels by a viewer of a multi-channel television receiver, the device being separate from such receiver and arranged for interposition between a receiver antenna and an antenna input terminal of a receiver, the device comprising channel selector means operable by a viewer, a clock, and memory means for recording information provided by the selector means and the clock, wherein the selector means includes a tuner, an input signal connection for enabling the tuner to be connected to an antenna, a frequency convertor adapted to convert the signals from the tuner into signals of a predetermined frequency range, and an output signal connection for enabling signals from the convertor to be supplied to an antenna input terminal of a receiver.
2. The device as claimed in claim 1 and including an oscillator tuned to a standard receiver line frequency, and means for indicating whether the oscillator is energised whereby to indicate that the receiver is switched on.
3. Device according to Claims 1 and 2, characterised in that in addition to the senderstation detector, the device has a sensor acting as a switch-on detector, for detecting whether the television receiver has been switched on, or not, the senser having an oscillation circuit tuned to the line frequency of the television receiver and having an amplifier for amplifying the signals delivered by the oscillation circuit, a memory unit for storing these signals, and an electronic switch connected to the input logical circuit.
4. Device for detecting and indicating information on television viewer behaviour and programme selection, substantially as hereinbefore described with reference to the accompanying drawings.
GB857377A 1976-03-02 1977-03-01 Television programme selection monitoring Expired GB1574964A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19762608508 DE2608508C3 (en) 1976-03-02 1976-03-02

Publications (1)

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GB1574964A true true GB1574964A (en) 1980-09-17

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Application Number Title Priority Date Filing Date
GB857377A Expired GB1574964A (en) 1976-03-02 1977-03-01 Television programme selection monitoring

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DE (1) DE2608508C3 (en)
FR (1) FR2343373B3 (en)
GB (1) GB1574964A (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7712114B2 (en) 2004-08-09 2010-05-04 The Nielsen Company (Us), Llc Methods and apparatus to monitor audio/visual content from various sources
US7786987B2 (en) 2003-09-25 2010-08-31 The Nielsen Company (Us), Llc Methods and apparatus to detect an operating state of a display based on visible light
US7882514B2 (en) 2005-08-16 2011-02-01 The Nielsen Company (Us), Llc Display device on/off detection methods and apparatus
US8156517B2 (en) 2008-12-30 2012-04-10 The Nielsen Company (U.S.), Llc Methods and apparatus to enforce a power off state of an audience measurement device during shipping
US8180712B2 (en) 2008-09-30 2012-05-15 The Nielsen Company (Us), Llc Methods and apparatus for determining whether a media presentation device is in an on state or an off state
US8375404B2 (en) 2008-12-30 2013-02-12 The Nielsen Company (Us), Llc Methods and apparatus to enforce a power off state of an audience measurement device during shipping
US8793717B2 (en) 2008-10-31 2014-07-29 The Nielsen Company (Us), Llc Probabilistic methods and apparatus to determine the state of a media device
US9027043B2 (en) 2003-09-25 2015-05-05 The Nielsen Company (Us), Llc Methods and apparatus to detect an operating state of a display
US9692535B2 (en) 2012-02-20 2017-06-27 The Nielsen Company (Us), Llc Methods and apparatus for automatic TV on/off detection
US9832496B2 (en) 2011-12-19 2017-11-28 The Nielsen Company (Us), Llc Methods and apparatus for crediting a media presentation device
US9924224B2 (en) 2015-04-03 2018-03-20 The Nielsen Company (Us), Llc Methods and apparatus to determine a state of a media presentation device

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2138642B (en) * 1983-04-22 1986-08-20 Video Res Audience rating measuring system for television receivers and video tape recorders
DE3318919C2 (en) * 1983-05-25 1985-03-21 Telemetric S.A., Internationale Gesellschaft Fuer Fernsehzuschauerforschung, Zug, Ch
FR2555383A1 (en) * 1983-11-23 1985-05-24 Barrault Christian Device for automatic monitoring of radio or television receivers for the purposes of audience statistics studies of various transmitter stations
JPH0249076B2 (en) * 1984-07-10 1990-10-29 Video Res Shichoritsusokuteishisutemuniokerubideoteepurekoodanodosajotaikenshutsuhoshiki
US4876736A (en) * 1987-09-23 1989-10-24 A. C. Nielsen Company Method and apparatus for determining channel reception of a receiver
DE4420075C2 (en) * 1994-06-08 1999-12-30 Kayser Threde Gmbh Devices and methods for detecting the use of broadcasting programs

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7786987B2 (en) 2003-09-25 2010-08-31 The Nielsen Company (Us), Llc Methods and apparatus to detect an operating state of a display based on visible light
US9027043B2 (en) 2003-09-25 2015-05-05 The Nielsen Company (Us), Llc Methods and apparatus to detect an operating state of a display
US8683504B2 (en) 2004-08-09 2014-03-25 The Nielsen Company (Us), Llc. Methods and apparatus to monitor audio/visual content from various sources
US9301007B2 (en) 2004-08-09 2016-03-29 The Nielsen Company (Us), Llc Methods and apparatus to monitor audio/visual content from various sources
US8108888B2 (en) 2004-08-09 2012-01-31 The Nielsen Company (Us), Llc Methods and apparatus to monitor audio/visual content from various sources
US9015743B2 (en) 2004-08-09 2015-04-21 The Nielsen Company (Us), Llc Methods and apparatus to monitor audio/visual content from various sources
US7712114B2 (en) 2004-08-09 2010-05-04 The Nielsen Company (Us), Llc Methods and apparatus to monitor audio/visual content from various sources
US7882514B2 (en) 2005-08-16 2011-02-01 The Nielsen Company (Us), Llc Display device on/off detection methods and apparatus
US9961342B2 (en) 2005-08-16 2018-05-01 The Nielsen Company (Us), Llc Display device on/off detection methods and apparatus
US9420334B2 (en) 2005-08-16 2016-08-16 The Nielsen Company (Us), Llc Display device on/off detection methods and apparatus
US8526626B2 (en) 2005-08-16 2013-09-03 The Nielsen Company (Us), Llc Display device on/off detection methods and apparatus
US10110889B2 (en) 2005-08-16 2018-10-23 The Nielsen Company (Us), Llc Display device ON/OFF detection methods and apparatus
US8180712B2 (en) 2008-09-30 2012-05-15 The Nielsen Company (Us), Llc Methods and apparatus for determining whether a media presentation device is in an on state or an off state
US9312973B2 (en) 2008-09-30 2016-04-12 The Nielsen Company (Us), Llc Methods and apparatus for determining whether a media presentation device is in an on state or an off state using fuzzy scores and signature matches
US9294813B2 (en) 2008-10-31 2016-03-22 The Nielsen Company (Us), Llc Probabilistic methods and apparatus to determine the state of a media device
US8793717B2 (en) 2008-10-31 2014-07-29 The Nielsen Company (Us), Llc Probabilistic methods and apparatus to determine the state of a media device
US8156517B2 (en) 2008-12-30 2012-04-10 The Nielsen Company (U.S.), Llc Methods and apparatus to enforce a power off state of an audience measurement device during shipping
US8799937B2 (en) 2008-12-30 2014-08-05 The Nielsen Company (Us), Llc Methods and apparatus to enforce a power off state of an audience measurement device during shipping
US8375404B2 (en) 2008-12-30 2013-02-12 The Nielsen Company (Us), Llc Methods and apparatus to enforce a power off state of an audience measurement device during shipping
US9832496B2 (en) 2011-12-19 2017-11-28 The Nielsen Company (Us), Llc Methods and apparatus for crediting a media presentation device
US9692535B2 (en) 2012-02-20 2017-06-27 The Nielsen Company (Us), Llc Methods and apparatus for automatic TV on/off detection
US9924224B2 (en) 2015-04-03 2018-03-20 The Nielsen Company (Us), Llc Methods and apparatus to determine a state of a media presentation device

Also Published As

Publication number Publication date Type
FR2343373B3 (en) 1980-02-01 grant
DE2608508C3 (en) 1980-02-28 grant
DE2608508A1 (en) 1977-09-08 application
DE2608508B2 (en) 1979-06-28 application
FR2343373A1 (en) 1977-09-30 application

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee