DE4238681A1 - System for registering the listener behavior of radio and television programs - Google Patents

Description

The invention relates to a system for registering the Listener behavior of radio and television broadcasts.

Registration of listener behavior from broadcasting and TV programs, especially a statistical evaluation advertising radio is not yet flexible enough takes place in a wide range. This failed because the Listeners over a day or longer sectional radio from various radio and long-distance vision receivers, be it at home, in the car or in a re restaurant, receives what a registration so far technical reasons not allowed.

There is GfK television viewer research on television, being at a stationary remote located in a room a GfK meter is connected, which represents tive households is available and all necessary for measurement, recording and data transmission steps are followed. It will be up to 98 Channels / programs and the use of video recorders knows. The switching on / off of the TV and the program that is currently switched on (including possible switchovers).

The remote data obtained in this way Visual usage is recorded in the GfK meter down to the second and saved; the retrieval of the stored data now follows over the phone line. To this way the Da  To be able to use transmission of data is the GfK meter above a modem is connected to the Telekom telephone network. The Data retrieval takes place every night between 2:00 And 5:00 a.m. by a central for this purpose installed computer. This calculator is able independently the Da in up to 13 households ten of the previous day's television use over telephone lines retrieve. For the transfer of household data the computer needs about 30 to 50 seconds.

From DE-OS 30 39 842 is a broadcast transmission system known for distribution automation and remote measurement. In doing so, several are transmitted via one radio transmission system remote devices selectively addressed and controlled. The digital addresses and control signals who transmitted to a local AM radio station and are sent from there. Several distant addresses Digital radio receivers that can be controlled control several external ones Facilities such as circuit breakers or watt hour counters ler.

From DE-OS 36 05 915 is a control and performance supply unit for implanted electromedical Measuring, control and regulation systems known. Doing so will a wristwatch with solar cells and a keypad Control signals, for example to a pacemaker, spent. The coupling of these control pulses ge happens via a transformer whose primary winding is located on the underside of the wristwatch and its Se secondary winding is implanted in the back of the hand, the electrical lead to the implanted cardiac pacemaker cher takes place over veins.

The present invention is based on the object a system for registering listener behavior ben that to conventional radio and television receivers is compatible without retrofitting and that allows  the listener is not stationary only in a particular one Area or room.

This object is achieved in that in each broadcasting station has a program assigned specific data word in a frequency position of just below 15 kHz, preferably 14.8 kHz, internally half of the frequency band of the message useful signal ampli generated by the student and together with the broadcasting program is broadcast, with radio and television receivers the low-frequency message useful signal with the specific amplitude-modulated data word and via which the loudspeaker (s) is broadcasted where the specific data word from a mobile, preferred Ultra arranged on a digital wristwatch sound microphone is recorded and a bandpass with amplifier, a demodulator, memory circuits and electronic components that are in the digital arm wristwatch are present as integrated circuits that Data words are recorded with the transmission time and where these values (data word plus transmission time) via a modem by telephone and the like on the wristwatch seen adapter at night to a central Calculator are transmitted so that an assignment in the computer with regard to the transmitted values and the transmission programs based on the specific data word and the right registered, saved broadcast time is possible, so that a statement can be made as to what program content, especially commercials that have received listeners.

Advantageous refinements of the invention result from the subclaims.

An embodiment is shown in the figures. It shows

Fig. 1, the stereo multiplex signal;

Fig. 2 is a block diagram of the digital wrist watch.

The present invention is intended to apply to both AM and also get FM radio.

The stereo multiplex signal for FM broadcasting shown in FIG. 1 shows with reference number 1 the frequency band for the mixture of left and right channel (L + R) for mono reception between 0.03 and 15 kHz. Just below 15 kHz, preferably at 14.8 kHz, the amplitude-modulated specific data word ( 6 ) is generated within the frequency band of the message useful signal and radiated out together with the transmission program after the total modulation. This measure is intended to ensure that commercially available mono radio and television receivers can also receive the specific data word. This is just above the hearing limit in the listening area emitted by the receiver's loudspeaker. It should be inaudible to the listener and registered by means of an ultrasound microphone and electronic components which are attached to a digital wristwatch and stored together with the transmission time in a memory chip. At 19 kHz of Figure 1 is the pilot tone ( 2 ), between 23 and 38 kHz or 53 and 38 kHz are the frequency bands for the left channel (L) minus the right channel ( 3 ) and ( 5 ); ( 4 ) shows a suppressed Ste reo subcarrier at 38 kHz. The same applies to AM broadcasting. Conditions.

In radio and television receivers this becomes low current message useful signal with the specific ampli recovered and modulated data word the speaker (s) broadcast, the specific Data word from a mobile, preferably on a digi talen wristwatch arranged ultrasound microphone that  is preferably a piezo microphone is recorded.

The block diagram shown in Fig. 2 shows the elec tronic components that are necessary for processing the specifi c data word. The ultrasound piezo microphone is shown with reference number 7 . 8 shows a bandpass with amplifier. By means of the demodulator 9 , the digital specific data word 17 with the periods TD and the pause time Tp is obtained in digitized form. The data word can consist of 8 or more bits, so that with 8 bits 28 different transmitter programs can be registered according to the number of different transmit programs and transmitters. 10 shows a counter which is controlled by the gate circuit 11 , which is also supplied with the digital data word. 12 shows the timer or the clock pulse, which is synchronized with the normal clock time and controls the read / write memory (RAM) 13 via control lines and a 16 bit bus. In it, the specific digital data words 17 from the counter 10 are read in via the address of the time via an 8-bit bus, for example. These values (data word plus transmission time) are transmitted via a modem 15 by means of a telephone line and the corresponding adapter provided on the wristwatch to a central computer at night, so that the computer assigns the transmitted values and the transmission program based on the specific Data word 17 and the registered, stored transmission time is possible, so that a statement can be made as to which program content, in particular commercials, the listener has received. This is done by the counter 14 , which is controlled by the clock pulse 12 and controls the read / write memory 13 and the modem 15 via a 16-bit data bus. A bit-serial signal is then present at point 16 , which consists of a received data word with the transmitted time.

The digital wristwatch has one of solar cells  powered battery-backed power supply.

The electronic components that are integrated Circuits are activated via a Switch in operative connection with a thermistor stands. This switch is activated as soon as the hot through the skin contact of the wristwatch on the body temperature is heated. It is therefore possible to create a regi to achieve listener behavior only if the watch is worn and the watch carrier also broadcasting hear.

The mode of operation of the system according to the invention are verified.

The system for registering listener behavior from Radio and television broadcasts stand out essentially lichen by the fact that in the broadcasters every pro grams, e.g. B. SWF 3 or HR 3 etc. an inaudible in ul specific data word located in the is broadcast or together with the program becomes. This applies to both FM and AM broadcasting.

Leave according to the number of bits of the data word ver, for example, with an 8-bit data word 256 mark different broadcast programs. The registration first takes place in one with integrated circuits equipped as electronic components digital Wristwatch by a selected group of subjects for usually worn during the day.

At the heart of the digital wristwatch are, in addition to the display and detection of the "normal" time via a clock pulse 12 , an ultrasound microphone 7 , which detects the amplitude-modulated specific data words that are emitted by the radio transmitters, lie in the ultrasound range, and for the others Processing electronic components, in particular memory are provided. As it were an inaudible dog whistle, the specific data word, for example in a time cycle of 10 seconds, is continuously sent out together with the message useful signal via the speaker (s) of a commercial radio and television receiver. In addition to the clock pulse 12 , the digital clock also has circuits such as read / write memory (RAM) 13 , counters 11 , 14 , control logic and a modem 15 . In the read / write memory 13 , the data word received at the respective time is stored under the address of the time. An example should explain this. At 12:45 p.m., the specific data word 11010011 is read into the read / write memory 13 . This data word stands for example for the broadcast program HR 3 (Hessischer Rundfunk, 3rd program). At 2:12 p.m., the subject is in his car, for example, and receives data word 11100011 via his car radio, which can be synonymous with, for example, SWF 3 (Südwestfunk, 3rd program). If, for example, the subject visits a restaurant around 5:00 p.m. in which radio is received by Bavaria 3 (Bavarian Radio, 3rd program), the data word received could be: 01010111.

The data words are only registered if the watch is actually worn. For this purpose, a thermistor is provided, which is heated by the body temperature to about 37 degrees Celsius when worn. Expediently, you will introduce this thermistor on the back of the watch facing away from the back with its metal layer. At night, the digital clock is connected to a central computer via the telephone network using an adapter and a modem 15 , which then reads the data contained in the read / write memory such as the time and the specific data words associated with the time.

In the central computer are based on a comparison list Broadcast programs, time and specific data words sure available for reference, so that for example due to the read out time 5:00 p.m. and the da tenwortes 01010111 to the last mentioned example remain, it is determined in the computer what content that had received broadcast program at this time, whether z. B. a certain commercial was content.

In this way, the listener behavior of Register radio and television broadcasts and later undergo a statistical analysis.

Claims (5)

1. System for registering the listener behavior of radio and television broadcasts, characterized in that in each broadcasting station a specific data word assigned to the respective program in a frequency position of just below 15 kHz, preferably 14.8 kHz, within the frequency band of the news signal generated amplitude modulated and broadcast together with the broadcast program, the radio in the radio and television receiver, the low-frequency news useful signal with the specific amplitude-modulated data word is recovered and broadcast via the speaker (s), the specific data word from a mobile, preferably on a digital arm Wristwatch arranged ultrasound microphone ( 7 ) is taken up and via a bandpass with amplifier, a demodulator ( 9 ), memory circuits ( 13 ) and electronic components that are present in the digital arm wristwatch as integrated circuits, the data words ( 17 ) are recorded with the transmission time and these values (data word plus transmission time) are transmitted via modem ( 15 ) by telephone and correspond to the adapter provided on the wristwatch at night to a central computer, so that an assignment with regard to the computer is made the transmitted values and the transmission program based on the specific data word ( 17 ) and the registered, stored transmission time is possible, so that a statement can be made as to which program content, in particular commercial programs, the listener has received. 2. System according to claim 1, characterized in that the ultrasound microphone ( 7 ) is a piezo microphone. 3. System according to claim 1 or 2, characterized net that when wearing the watch over a hot who activates the electronic components as soon as the thermistor comes into contact with the skin Wrist watch is warmed to body temperature. 4. System according to any one of the preceding claims, since characterized in that the wristwatch has a battery-buffered chip fed by solar cells power supply. 5. System according to any one of the preceding claims, characterized in that the electronic components of the digital wristwatch consist of a

• - Bandpass ( 8 ) with amplifier that filters out the amplitude-modulated specific data word;
• - From a counter ( 10 ) by one
• - Gate circuit ( 11 ) is controlled;
• - From a read / write memory RAM ( 13 ) in which the specific data word ( 17 ) under the
• - address of the time (clock) ( 12 ) is stored;
• - From a counter ( 14 ), the
• - The read / write memory (RAM) ( 13 ) controls
• - And a modem ( 15 ) for serial data transmission using an appropriate adapter and telephone to a central computer.