WO1998031132A2 - Method and device for observation of the tv audience behaviour - Google Patents

Method and device for observation of the tv audience behaviour Download PDF

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Publication number
WO1998031132A2
WO1998031132A2 PCT/BG1998/000001 BG9800001W WO9831132A2 WO 1998031132 A2 WO1998031132 A2 WO 1998031132A2 BG 9800001 W BG9800001 W BG 9800001W WO 9831132 A2 WO9831132 A2 WO 9831132A2
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WO
WIPO (PCT)
Prior art keywords
channel
signal
watched
tvsp
information
Prior art date
Application number
PCT/BG1998/000001
Other languages
French (fr)
Other versions
WO1998031132A3 (en
Inventor
Michail Atanassov Janov
Petar Dimitrov Bojchev
Original Assignee
Michail Atanassov Janov
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 Michail Atanassov Janov filed Critical Michail Atanassov Janov
Publication of WO1998031132A2 publication Critical patent/WO1998031132A2/en
Publication of WO1998031132A3 publication Critical patent/WO1998031132A3/en

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Classifications

    • 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
    • H04H60/29—Arrangements for monitoring broadcast services or broadcast-related services
    • H04H60/33—Arrangements for monitoring the users' behaviour or opinions
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
    • H04N21/258—Client or end-user data management, e.g. managing client capabilities, user preferences or demographics, processing of multiple end-users preferences to derive collaborative data
    • H04N21/25866—Management of end-user data
    • H04N21/25891—Management of end-user data being end-user preferences
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/47—End-user applications
    • H04N21/475—End-user interface for inputting end-user data, e.g. personal identification number [PIN], preference data
    • H04N21/4758—End-user interface for inputting end-user data, e.g. personal identification number [PIN], preference data for providing answers, e.g. voting
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/65—Transmission of management data between client and server
    • H04N21/658—Transmission by the client directed to the server
    • H04N21/6582—Data stored in the client, e.g. viewing habits, hardware capabilities, credit card number
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/173—Analogue secrecy systems; Analogue subscription systems with two-way working, e.g. subscriber sending a programme selection signal
    • H04N7/17309—Transmission or handling of upstream communications
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/173—Analogue secrecy systems; Analogue subscription systems with two-way working, e.g. subscriber sending a programme selection signal
    • H04N7/17345—Control of the passage of the selected programme
    • H04N7/17354—Control of the passage of the selected programme in an intermediate station common to a plurality of user terminals

Definitions

  • the invention is related to a method and device for observation of the TV audience behaviour in observation points distributed according to socio-demographic characteristics.
  • a method for observation of the TV audience behaviour (1) which consists in observation of distributed points (TV sets) in a definite built-up area (for example, subscribers' houses) which are covered by a specialized computer system.
  • the TV program watched at the moment is identified in selected observation points determined according to socio-demographic characteristics of the TV viewers by means of method which is representative for the observed totality of the area.
  • the moment (year, month, date, hour, minute) is memorized, TV program watched in each point is registered.
  • the data from separate points are collected and generalized.
  • the data are processed according to the method with respective representativeness for different levels and the analysis shows which TV program was watched on a fixed time.
  • the analysis is realizedby means of a computer system.
  • the TV viewers are enabled to estimate the quality of the respective watched program, and even the persons taking part in it, while the estimations are registered and stored in the respective device.
  • an interview is loaded from the master computer through telephone modems (or radio modems) into each data recorder, and when the specified event (switching-on the TV set, hour, date, etc.) occurs, the interview is started in the form of running text on the display of the device.
  • Members of each household may answer the questions by means of the remote control unit serving for a dialogue of TV viewers with the data recorder.
  • the viewer may answer with "yes", "no” or a mark according to a six-point marking system. Besides, it is possible to return to the previous question or to pass to the next one.
  • TV programs may be identified with high precision through a complex video signal from the TV set which is decomposed into a number of lines and impulses in them, and the analysis of the number of impulses contained in the definite line and comparing them with pre-set tables in the memory leads to identification of definite TV program.
  • a device for observation of the TV audience behaviour which consists of two buffer attenuators connected respectively with the TV set and/or video recorder varicap voltage in the house of the user.
  • Digital inputs INI . , . IN16 are connected to the TV set and video unit, as well as to presence sensor PS.
  • Varicap voltages, after passing through buffer attenuators, are connected to analogue-to-digital converter ADC,
  • the device is provided with two microcontroller units MCUl and MCU2.
  • Multiplexer AMUX and ADC are connected to the first microcontroller unit MCUl.
  • input-output logic digital inputs are connected to the microcontroller unit MCUl.
  • the microcontroller unit is connected to a modem, which, in its turn, is connected my means of an interface circuit to a serial interface RS232.
  • a serial peripheral interface SPI a real time clock RTC is connected to the first microcontroller unit MCUl .
  • Permanent memory EPROM and random access memory RAM are connected to MCUl by means of control logic MCULOGIC. Power to the random access memory and the clock RTC is buffered by means of storage battery.
  • a remote control receiver is connected to the first microcontroller unit. The entire system is provided with common power supply from the mains.
  • Microcontroller MCUl is also connected to interface circuit for serial interface RS232.
  • the second microcontroller unit is connected to the first microcontroller unit MCUl by means of serial peripheral interface SPI.
  • the second microcontroller unit is also connected to the permanent memory EPROM and by means of indication logic INDLOGIC it controls the display /INDICATION/ of the system (2) .
  • the essence of the offered method for observation of the TV audience behaviour consists in observation of distributed points (TV sets) in a definite built-up area (for example, subscribers' houses) which are covered by a specialized computer system.
  • the currently watched TV program is identified in selected observation points determined according to socio-demographic characteristics of the TV viewers by means of method which is representative for the observed totality of the area.
  • the moment (year, month, date, hour, minute) is stored.
  • TV program watched in each point is registered.
  • the data from separate points are collected and generalized.
  • the data are processed according to the method with the respective representativeness for different levels and the analysis shows which TV program was watched on a fixed time.
  • the analysis is realized by means of a computer system.
  • the TV viewers are enabled to estimate the quality of the respective watched program and even the persons taking part in it, while the estimations are registered and stored in the corresponding device.
  • an interview is loaded from the master computer through telephone modems (or radio modems) into each data recorder, and when the specified event (switching on the TV set, hour, date, etc.) occurs, the interview is started in the form of the running text on the display of the device.
  • Members of each household may answer the questions by means of the remote control unit serving for a dialogue of the TV viewers with the data recorder.
  • the viewer may answer with "yes", "no” or a mark according to a six-point marking system. Besides, it is possible to return to the previous question or to pass to the next one.
  • a signal is taken from the watched TV channel and this signal is processed in order to read the lines and scenes (which are coded by numbers, for example) .
  • the video signals are analysed by videoprocessor (or analogue-to-digital converter) .
  • the obtained information on the location of the official codes in video signals comes to the microprocessor which puts additional official information to some of the reserved places in the coming from the TV head office TV signal.
  • the latter information is mixed with high frequency step by step, with the interval of one TV channel. When the frequency coincides with that of the watched channel, the official information is mixed with the TV antenna signal.
  • the signal contains also the official information which is analysed by videoprocessor and is read by microprocessor.
  • the operator tells the microprocessor that when it transmits frequency equal to this TV channel plus the official information - that is the definite TV channel.
  • every switching over of a TV channel will be identified by the processor through the official information, and the channel number will be recognized through it.
  • the combination of this frequency and this information makes it possible to recognize precisely the watched channel.
  • the essence of the offered invention also consists in a device realising part of the above-described method, in particular the part referring to registration of definite TV programs in separate households.
  • the device includes microcontroller connected to memory, a modem, real-time clock, display, remote control unit, TV signal processor, frquency synthesizer connected to voltage- controled oscillator VCO.
  • the microcontroller is connected to mixer which is linked to the aerial mixer of the antenna input of the TV set.
  • TV sienal processor is connected to the output for recording in the TV videorecorder .
  • the advantages of the offered method consist in the fact that it is not necessary to open the TV set in order to install the device. This makes the installation easier and it can be fulfilled by a specialist having lower qualification.
  • the device can be made to memorize TV channels just at the place of production, and not at the user's place. Recognition of the channel does not depend on local conditions (variation in the supply or varicap voltage) . The speed of recognition of channels is higher than with the device mentioned in the previous chapter.
  • Fig. 1 gives a schematic view of a model realisation of the offered device, carrying out that part of the method which refers to registration of definite TV programs in separate households .
  • the device (Fig. 1) consists of a microprocessor unit MPU connected to a MODEM, reals time clock RTC, display INDIKATION, block for remote control BD, block for TV signal processing TVSP, synthesizer (consisting of frequency synthesizer SYNT connected to voltage-controled oscillator VCO) , mixer MIX connected, in its turn, to the aerial mixer SUM of the antenna input of the TV set, and TVSP block is also connected to the output for recording VIDEO of the TV videorecorder .
  • TVSP block may include a videoprocessor.
  • TVSP may have a buffer video memory, too.
  • Microprosessor MPU has a buffer video memory.
  • the device operates as follows:
  • the signal from the TV set comes into the TV signal processing block TVSP, where lines and scenes are separated ⁇ the lace of a line and a scene becomes clear, as well as the information contained in them) .
  • TVSP sends to the microprocessor unit MPU information how a line and a scene could be found.
  • the above-mentioned mixer receives high frequency from the voltage-controled oscillator VCO.
  • This high frequency is changes step by step by means of synche ii.cv SYNT, controled by microprocessor unit MPU.
  • the official information transmitted to the summarizer SUM is mixed with the TV antenna signal.
  • the signal contains also the official information which is analysed by TVSP block and is read by the microprocessor unit MPU.
  • the operator tells the microprocessor unit MPU that when it transmits frequency equal to that of the TV channel plus the official information - that is the definite TV channel.
  • the official information from the microprocessor unit is added automatically .

Abstract

The method is characterized by the fact that at a definite moment a signal is taken from the watched TV channel, and this signal is processed, while the videosignal is analysed by video-processor, and the obtained information on the location of the official codes in the videosignal (transmitted from the TV head office), comes to microprocessor. Its puts additional official information which is mixed with high frequency changing step by step with the interval of one TV channel, and when the frequency coincides with that of the watched channel, the official information is mixed with the TV signal of the antenna. In this way on the TV video-output the signal contains also the official information which is analysed by videoprocessor and is read by microprocessor. The method is realized by a device consisting of microprocessor (MPU) connected to memory (RAM + EPROM), with modem (MODEM), real-time clock (RTC), display (INDIKATION) and remote control block (BD) on the one side, and on the other side connected with TV signal processing block (TVSP), with frequency synthesizer (SYNT), connected to voltage-controlled oscillator (VCO) and mixer (MIX), while TVSP block is also connected to the output for recording (VIDEO).

Description

METHOD AND DEVICE FOR OBSERVATION OF THE TV AUDIENCE
BEHAVIOUR
SCOPE OF APPLICATION
The invention is related to a method and device for observation of the TV audience behaviour in observation points distributed according to socio-demographic characteristics.
STATE OF THE ART
A method for observation of the TV audience behaviour (1) is known, which consists in observation of distributed points (TV sets) in a definite built-up area (for example, subscribers' houses) which are covered by a specialized computer system. The TV program watched at the moment is identified in selected observation points determined according to socio-demographic characteristics of the TV viewers by means of method which is representative for the observed totality of the area. The moment (year, month, date, hour, minute) is memorized, TV program watched in each point is registered. The data from separate points are collected and generalized. The data are processed according to the method with respective representativeness for different levels and the analysis shows which TV program was watched on a fixed time. The analysis is realizedby means of a computer system. Besides, the TV viewers are enabled to estimate the quality of the respective watched program, and even the persons taking part in it, while the estimations are registered and stored in the respective device. At request an interview is loaded from the master computer through telephone modems (or radio modems) into each data recorder, and when the specified event (switching-on the TV set, hour, date, etc.) occurs, the interview is started in the form of running text on the display of the device. Members of each household may answer the questions by means of the remote control unit serving for a dialogue of TV viewers with the data recorder. The viewer may answer with "yes", "no" or a mark according to a six-point marking system. Besides, it is possible to return to the previous question or to pass to the next one.
TV programs may be identified with high precision through a complex video signal from the TV set which is decomposed into a number of lines and impulses in them, and the analysis of the number of impulses contained in the definite line and comparing them with pre-set tables in the memory leads to identification of definite TV program.
A device for observation of the TV audience behaviour is known, which consists of two buffer attenuators connected respectively with the TV set and/or video recorder varicap voltage in the house of the user. Digital inputs INI . , . IN16 are connected to the TV set and video unit, as well as to presence sensor PS. Varicap voltages, after passing through buffer attenuators, are connected to analogue-to-digital converter ADC, The device is provided with two microcontroller units MCUl and MCU2. Multiplexer AMUX and ADC are connected to the first microcontroller unit MCUl. By means of input-output logic digital inputs are connected to the microcontroller unit MCUl. By means of the same lo-=- gic the microcontroller unit is connected to a modem, which, in its turn, is connected my means of an interface circuit to a serial interface RS232. Through a serial peripheral interface SPI a real time clock RTC is connected to the first microcontroller unit MCUl . Permanent memory EPROM and random access memory RAM are connected to MCUl by means of control logic MCULOGIC. Power to the random access memory and the clock RTC is buffered by means of storage battery. A remote control receiver is connected to the first microcontroller unit. The entire system is provided with common power supply from the mains. Microcontroller MCUl is also connected to interface circuit for serial interface RS232. The second microcontroller unit is connected to the first microcontroller unit MCUl by means of serial peripheral interface SPI. The second microcontroller unit is also connected to the permanent memory EPROM and by means of indication logic INDLOGIC it controls the display /INDICATION/ of the system (2) .
TECHNICAL ESSENCE AND ADVANTAGES
The essence of the offered method for observation of the TV audience behaviour consists in observation of distributed points (TV sets) in a definite built-up area (for example, subscribers' houses) which are covered by a specialized computer system. The currently watched TV program is identified in selected observation points determined according to socio-demographic characteristics of the TV viewers by means of method which is representative for the observed totality of the area. The moment (year, month, date, hour, minute) is stored. TV program watched in each point is registered. The data from separate points are collected and generalized. The data are processed according to the method with the respective representativeness for different levels and the analysis shows which TV program was watched on a fixed time. The analysis is realized by means of a computer system. Besides, the TV viewers are enabled to estimate the quality of the respective watched program and even the persons taking part in it, while the estimations are registered and stored in the corresponding device. At request an interview is loaded from the master computer through telephone modems (or radio modems) into each data recorder, and when the specified event (switching on the TV set, hour, date, etc.) occurs, the interview is started in the form of the running text on the display of the device. Members of each household may answer the questions by means of the remote control unit serving for a dialogue of the TV viewers with the data recorder. The viewer may answer with "yes", "no" or a mark according to a six-point marking system. Besides, it is possible to return to the previous question or to pass to the next one.
On a fixed time in the user's house a signal is taken from the watched TV channel and this signal is processed in order to read the lines and scenes (which are coded by numbers, for example) . The video signals are analysed by videoprocessor (or analogue-to-digital converter) . The obtained information on the location of the official codes in video signals (transmitted by the TV head office) comes to the microprocessor which puts additional official information to some of the reserved places in the coming from the TV head office TV signal. The latter information is mixed with high frequency step by step, with the interval of one TV channel. When the frequency coincides with that of the watched channel, the official information is mixed with the TV antenna signal. In this way on the TV video-output the signal contains also the official information which is analysed by videoprocessor and is read by microprocessor. The operator tells the microprocessor that when it transmits frequency equal to this TV channel plus the official information - that is the definite TV channel. In this way every switching over of a TV channel will be identified by the processor through the official information, and the channel number will be recognized through it. The combination of this frequency and this information makes it possible to recognize precisely the watched channel.
The essence of the offered invention also consists in a device realising part of the above-described method, in particular the part referring to registration of definite TV programs in separate households. The device includes microcontroller connected to memory, a modem, real-time clock, display, remote control unit, TV signal processor, frquency synthesizer connected to voltage- controled oscillator VCO. Besides, the microcontroller is connected to mixer which is linked to the aerial mixer of the antenna input of the TV set. TV sienal processor is connected to the output for recording in the TV videorecorder .
The advantages of the offered method consist in the fact that it is not necessary to open the TV set in order to install the device. This makes the installation easier and it can be fulfilled by a specialist having lower qualification. The device can be made to memorize TV channels just at the place of production, and not at the user's place. Recognition of the channel does not depend on local conditions (variation in the supply or varicap voltage) . The speed of recognition of channels is higher than with the device mentioned in the previous chapter.
EXAMPLES FOR REALISATION OF THE INVENTION
Fig. 1 gives a schematic view of a model realisation of the offered device, carrying out that part of the method which refers to registration of definite TV programs in separate households .
The device (Fig. 1) consists of a microprocessor unit MPU connected to a MODEM, reals time clock RTC, display INDIKATION, block for remote control BD, block for TV signal processing TVSP, synthesizer (consisting of frequency synthesizer SYNT connected to voltage-controled oscillator VCO) , mixer MIX connected, in its turn, to the aerial mixer SUM of the antenna input of the TV set, and TVSP block is also connected to the output for recording VIDEO of the TV videorecorder . TVSP block may include a videoprocessor. TVSP may have a buffer video memory, too. Microprosessor MPU has a buffer video memory.
The device operates as follows: The signal from the TV set comes into the TV signal processing block TVSP, where lines and scenes are separated {the lace of a line and a scene becomes clear, as well as the information contained in them) . TVSP sends to the microprocessor unit MPU information how a line and a scene could be found. The signal taken from the watched channel, after it is analysed in TVSP, obtains additional official information from MPU, Microprocessor MPU adds this additional official information to some reserved places in the TV signal. This additional information is transmitted to the mixer MIX. On the other side the above-mentioned mixer receives high frequency from the voltage-controled oscillator VCO. This high frequency is changes step by step by means of synche ii.cv SYNT, controled by microprocessor unit MPU. When the frequency coincides with that of the watched TV channel, the official information transmitted to the summarizer SUM is mixed with the TV antenna signal. In this way on the TV video-output the signal contains also the official information which is analysed by TVSP block and is read by the microprocessor unit MPU. The operator tells the microprocessor unit MPU that when it transmits frequency equal to that of the TV channel plus the official information - that is the definite TV channel. By means of changing the high frequency by the voltage-controled oscillator VCO , the official information from the microprocessor unit is added automatically .
The combination of this frequency and this information makes it poss ible to recognise precisely the watched channel .

Claims

PATENT CLAIMS
1. Method for observation of the TV audience behaviour consisting in observation of distributed points (TV sets) in a definite built-up area (for example, the users* houses), covered by specialized computer system, where the distributed points are determined according to socio-demographic characteristics of the TV audience by means of method which is representative for the observed totality of the area, and the watched at a definite moment TV program is recognized and the time (year, month, date, hour, minute) is memorized, whereby TV program watched in each point is registered, the data from each separate point is summarized and generalized, while the data are processed according to the method with respective representativeness for different levels and the analysis shows which TV program is watched at the moment, where the analysis is realized by means of a computer system, whereby the TV viewers are enabled to estimate the quality of the respective watched program and even the persons taking part in it, while the estimations are recorded and stored in the respective device, and from the master computer through telephone modems (or radio modems) an interview is loaded at request into each data recorder, and when the specified event (switching on the TV set, hour, date, etc.) occurs, the interview is started in the form of the running text on the display of the device, and members of each household may answer questions by means of the remote control unit serving for dialogue of TV viewers with the data recorder, where the viewer may answer with "yes", "no" or marks according to a six-point marking system, and besides, it is possible to return to the previous question or to pass to the next one, which i s c h a r ac t e r i s e d by the fact that at a definite moment a signal is taken from the watched TV channel in the user's house, and the signal is processed (the lines and scenes coded, for example, by numbers, are processed), and the videosignal is analysed by videoprocessor (or analogue-to-digital circuit) , and the obtained information on the location of the official codes in video signals, transmitted by the TV head office, comes to the microprocessor unit which puts additional information to some of the reserved places in the coming from the TV head office TV signal, after which the information is mixed with high frequency changing step by step with the interval of one TV channel, and when the frequency coincides with that of the watched channel, the official information is mixed with the TV antenna signal, and in this way on the TV video-output the signal contains also the official information which is analysed by videoprocessor and is read by microprocessor unit, while the operator tells the microprocessor that when it transmits frequency equal to this TV channel plus the official information - that is the definite TV channel, and in this way every switching over of a TV channel will be identified by the processor through the official information, and the channel number will be recognized through it.
2. Device for realization of the method for observation of the TV audience behaviour in that part of it, which refers to registration of definite TV programs in separate households and due to this reason the device is placed at the user's house, and which consists of MODEM, real-time clock RTC, memory (consisting of permanent memory EPROM and random access memory RAM) and indication (display) INDIKATION, which i s c h a r a c t e r i s e d by the fact that microprocessor unit 1PU) is connected to the memory consisting of (RAM and EPROM) , where the microprocessor unit (MPU) is connected to (MODEM) , real-time clock (RTC) , display (INDIKATI- ON) , block for remote control (BD) , block for TV signal processing (TVSP) , synthesizing block consisting of frequency synthesizer (SYNT) , connected also to mixer (MIX) , linked in its turn to the aerial mixer (SUM) of the antenna input of the TV set, where the TVSP block is connected also to the output for recording (VIDEO) in the TV videorecorder, and the microprocessor unit (MPU) has a buffer videomemory.
3. The device, in accordance with claim 2, which i s c h a r a c t e r i z e d by the fact that the TV signal processing block (TVSP) contains videoprocessor.
4. The device in. accordance with claims 2 and 3, which i s c h a r a c t e r i z e d by the fact that the TV signal processing block (TVSP) contains buffer videomemory.
5. The device in accordance with claims 2 and 4, which i s c h a r a c t e r i z e d by the fact that the TV signal processing block (TVSP) contains analogue-to-digital circuit for analysis of the videosignal.
LITERATURE
1. Patent Application, reg. No. 99770
2, Patent Application, reg. No. 100 755
PCT/BG1998/000001 1997-01-10 1998-01-09 Method and device for observation of the tv audience behaviour WO1998031132A2 (en)

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Application Number Priority Date Filing Date Title
BG101127A BG62424B1 (en) 1997-01-10 1997-01-10 Method and device for monitoring the behaviour of a tv visual audience
BG101127 1997-01-10

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WO1998031132A2 true WO1998031132A2 (en) 1998-07-16
WO1998031132A3 WO1998031132A3 (en) 2000-08-24

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GB2346472A (en) * 1999-02-03 2000-08-09 Ibm Providing proof of reception of media transmission
WO2002075989A3 (en) * 2001-03-20 2003-06-05 Supercomputing Systems Ag Method and system for measuring audience ratings

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