DE3031527A1 - Transmitter identification system for HF receiver - displays stored transmitter data after automatic or manual tuning - Google Patents

Abstract

The system uses electronic storage tables specifying the transmitter names, their identification programmes, their fixed locations, their frequencies, their powers and their location numbers corresponding to their geographical placements. At the end of automatic or manual turning the contents of the table at a point previously specified via a character input are compared for coincidence with the reception data, with the stored information fed to an alpha numeric display upon coincidence being obtained. Pref. a single keyboard input is used to enter the frequency of the required transmitter and the transmitter location number, or alternatively separate keyboards are used. The entered transmitter location number is displayed directly it is input for a given duration pref. in sequence with the transmitter data.

Description

DESCRIPTION

Electronic transmitter identification on RF receivers. The invention refers to the alphanumeric display of transmitter frequencies and channel numbers on manually or automatically tunable high-frequency receivers.

For high-end consumer RF receivers, it is common while and after tuning, the receiving frequency - for bI transmitters in kHz, for FM transmitters in MJ: z and here optionally also the assigned one or two-digit channel number - Display with a multi-digit integrated alphanumeric LED or LCD display0 The sender identification is based exclusively on the specification of digits, which in the known station / frequency tables the respective station and that of broadcast programs are assigned to them. Experience shows that with FM reception a broadcasting station, however, preferably according to the program of a certain broadcasting establishment - e.g. BR 3 - is selected.

There is therefore often a manual selection of broadcasting stations the request, from the display unit of the receiving device, not necessarily the digits of a still to be identified transmitter frequency or channel number, but - for example immediately after the end of an automatic search process - the broadcaster and display their program.

Due to the broadcasting of the same program for several regionally different Placed transmitters from the same broadcaster with different transmission frequencies or the assignment of the same channel number for different programs different Broadcasters, is a fixed programming of the interrelationships frequency-station name-programs for clear visual identification at the recipient without additional Action not possible. In the VHF range, for example, you can play the 1st program on channel 18 of the NDR and also the 1st program of the STOFF received.

Shows the frequency or channel display of the receiver 92.40 Mllz or Channel 18 would be the program of NDR 1 in northern Germany and in southern Germany Room that is reproduced by SWF 1 0 The preprogramming valid for both reception areas an alphanumeric transmitter program identifier only from the frequency or channel nunimer is therefore not possible.

It was already proposed in 19z7 in patent application P 27 46 1861 depending on the location of the recipient, using a selection method that is not described in detail, to use a number of preprogrammed lists in the receiver, in which only regionally applicable assignments of transmitter frequencies or channel numbers are stored with the relevant programs and names of the broadcasters. the Electronic tables that are still applicable for the recipient's location would have to be necessary blocked prior to initial start-up.

A similar one, in the Funkschau 1978, issue lS, p. 886 ff.

published proposal recommends the allocation of such Table colony through the use of the circuitry that is valid at the receiving location Post code. After entering the two digits 85 would then, for example the frequency / station table applicable to the regional GPreich D'ürnberg / Fürth Apparatus provided after the recipient has relocated beyond the region - e.g. to Hamburg - the postcode 20 must be entered again.

There are at least 2 additional buttons on the control panel of the receiver for this purpose and a two-digit numeric display required, which is not just a disadvantage Have an influence on the design and costs of the device, but - normally - never be used again.

The present invention relates to the in the dos 27 4G 186.5 made suggestion; Receiving location a one-time wet pick-up of the circuitry at the ßfl fang he carry out, whereby eiire regionally suitable, from the Sulilme der iiu memory of the device's preprogrammed electrical table is activated. After this measure, the example of double occupancy mentioned at the beginning becomes of VHF channel 18, after manual or automatic tuning of the receiver In the north German reception area the alphanumeric display NDR 1, in the south German On the other hand, the display SWF 1 appears. The object of the invention was es, an electronically non-mandatory allocation table: station name, program and Set the frequency that can be used for any given receiver location Display of the station name, the program, the frequency or the station location enables. There should be no additional control elements on the front panel will be required. About such an optionally provided tabulation it is possible in a further embodiment of the inventive concept, through the Entering alphanumeric characters, e.g. BR 1, the recipient immediately on one of the assigned Tune transmission frequencies, using suitable tools the computer technology does not cause any difficulties, the transmitter with the at 3mpfangsort select the greatest reception field strength for reception.

Although on the part of the radio stations the wave distribution for broadcasting stations and gap filling transmitter has already been made so that mutual interference largely are excluded, the correct cartographic definition of the stored Area tables are a crucial component of the inventive solution for a regional applicable alphanumeric sender identification in the receiver. With the proposed The assignment procedure described below has the option of revealing Definition of area tables in which the performance of the transmitter, as well as the topographical Location of the reception area can be taken into account. Basically can a powerful transmitter in the north German plain a larger reception area than in the Upper Bavarian mountainous region, with a correspondingly higher Number of gap filling transmitters installed there with relatively low power.

The apparatus solution of the inventive idea is with the aid a microcomputer particularly simple and largely expandable. So can the number of electronically storable area tables - by corresponding Design of the storage capacity of the electronic memory used in this system (ROM's) - beyond the territory of the FRG to the broadcasting stations of neighboring countries expand at will.

The method according to the invention is described below with reference to drawings explained in more detail.

In Fig. 1 a column / row matrix is shown, the crossing points Transmitter locations are assigned.

Fig. 2 shows the scheme of the electronically stored transmitter / frequency table.

The simplified block diagram of one with the circuitry Components of the RF receiver provided with the identification method are shown in FIG. 3, and under the designations 1, 2 3 and 4 schematically the operating and display elements, those in this or a similar form for the application of the proposed identification method are required on the front panel of an RF receiver.

The definition of electronically stored area tables provides is practically a matrixed electronic map in which the matrix points, corresponding to FIG. 1, by which the transmitter locations are determined. The location of the Broadcasters Würzburg (97.6 MRz) is through the column point 9 and the Line point 13 exactly defined. The distances to the neighboring transmitters, e.g. to the transmitter Kreulberg, who is marked with 9/12 within the matrix, do not represent any constant geometric lines; they practically correspond to the matrixing of transmitter locations within the reception areas of the VHF range that may be detectable by the receiver 87.5-108 MHz.

For data processing reasons, these are both location brands expressed in a two-digit number within the electronic lists, with which 99 transmitters can be recorded. Wiirzburg is assigned the number 53, for example.

If the recipient was stationed in Würzburg, the one around it is Reception area of different transmitters marked in the same way Neighboring Wiatrix-Pulokte within an electronically stored list in tabular form set.

In a further, also permanently stored, in Fig. 2 schematically shown in the table, are the frequencies combined by the radio stations » Channels and programs assigned internally defined channel location numbers.

The provision of the stored area table in the receiver takes place at the receiving location in such a way that the nearest sender location number entered into the RF receiver's computer system 0 This number is provided by the customer a printed table supplied with the device. The customer has to only know the sender name closest to its receiving location. For the Example of the receiver location Würzburg would be the sender Würzburg (sender location number 53), for the receiving location Grassau in Upper Bavaria the transmitter Traunstein (transmitter location number 91).

Entering the digits assigned to these transmitter locations is according to the invention via the existing numeric keypad for direct frequency input or - if this type of reconciliation is not provided for in the recipient concept - via the Station buttons of the receiving device. Fig0 3 shows schematically the order of control and display elements (1, 2, 3 and 4) required for these tasks would have to be added to an RF receiver. The ten necessary keys 1 For direct frequency entry, the transmitter location number is entered for the duration of the entry activated by an additional location selection button 2 To confirm the correct Once the entry has been made, the transmitter location number appears either permanently or briefly on an optoelectronic digit display 3.

This display enables the selected one to be checked at any time reception area with the centrally located transmitter location. To save this additional numeric display 3 can also be used for the display via the display unit 4 take place.

A practical embodiment of the invention is shown in FIG and is described below.

The tuning of the RF receiver is done either in the usual way manually via the automatic search or

by selecting a station button whose tasks are based on the status of Technology can also take over the numeric keypad 1 0 After the voting process has been completed the reception frequency is displayed in a known manner as a multi-digit bit pattern on the alphanumeric display unit 4 available. This bit pattern will passed via the connecting line 6 into the ROM 7 of the microcomputer 8 at the same time and serves here as a selection criterion for the electronically stored here, shown in Fig. 2 list shown schematically. Do the bit patterns match the receiver frequency matches the bit pattern of a frequency in the list, e.g. 95.90 MHz, the transmitter data assigned to the associated section, consisting of transmitter names and transmitter location number. You get to the central processor control 9, where a comparison circuit coincidence between the previous one on the feeder 10 transmitter location number entered on keyboard l and the transmitter location number read out queries.

If, for example, the location number 28 has been entered and the search stopped at 95.90 NHz, the display data of the is selected and made available Sender Aachen = WDR 3, since this is assigned the number 28 in the list according to FIG is. This applies to the case of the sender-location / receiver-location coincidence. The now from the processor control 9 via the line 11 to the display unit 4 indicated display data in the desired manner with the lettering WDR 3 the station and the program. Does the receiver location agree with the sender location? do not match (no point coincidence), e.g. the recipient location is Flensburg (Sender location number 2), the comparison circuit for the tuning frequency 95.90 finds MHz no direct point coincidence within the list, as it is within the circuit range t in the list section for frequency S5.90 MHz no transmitter with location number 2 was found. There is therefore no display on the display unit 4. The in In this case, the receiver can only be tuned by entering the frequency directly 5 must be changed to 95.90 MHz. Are the sender location and receiver location? within the practically usable radiation range of the transmitter, asks the comparator in the circuit area 9 now in the matrix the surrounding points, see Fig. 1, whether the recipient location characterized by the entered sender location number is in the vicinity of transmitters that are on the current reception frequency from 95.90 MHz.

The selection is made in such a way that the comparator all in one Transmitter location numbers lying in the frequency range (e.g. 28/91/13/63, see Fig. 2) used one after the other as the central matrix point and queries the area around this point, whether the entered transmitter location number (e.g. 2) is above it. is if this is the case, the receiver location is in the coverage area of the transmitter. the The width of the query area can be determined in a further embodiment of the inventive concept Make it dependent on the transmission power. Each transmitting station is therefore given in the assignment list according to Fig. 2 a one-digit or multi-digit service identifier in which the transmission power is included in coded form. This way the query area becomes within the matrix for a transmitter located at a greater distance from the receiving location low power, which have a neighboring transmitter working on the same wavelength could, limited, but extended for a powerful broadcaster.

In a further embodiment of the inventive concept, it is with data processing means known per se are possible, the matrix according to FIG. 1, or the list according to FIG. 2 on a display device that is also installed in the receiver can be, and based on these graphics, directly on the screen, e.g. with a light pen to enter the recipient's location.

Thereupon another, automatically appearing graphic could the associated reception area with all receivable transmitters are displayed, which then - through targeted touching with a light pen or a cursor directly away from the graphic - can be called up for reception. That way, the Numerical entry of the transmitter location number can be omitted.

The entire list of stations according to FIG. 2 could also be displayed on the screen display vertically. Associated with a manual stop at the designated The point is then to coordinate the steep reception with the straight line in the marking area located transmitter.

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Claims (8)

pATLNTANSpRL: CH Procedure for electronic transmitter identification to I-IF receivers, characterized in that suitable electronic, non-volatile memory tables are stored in which the station names, station programs, Sender locations, their frequencies, a service identifier and a sender location number according to the geographical distribution of the transmitter locations in the intended 3 reception areas are assigned to one another, and that electronic devices are provided after the manual or automatic tuning of the receiver has been completed of the F-Empiängers the contents of electronic tables within a previously over a numeric entry of the specified table section for coincidence with the characteristic data the reception frequency and, in the event of a coincidence, the associated, the transmitter transferring characteristic table data to an alphanumeric display. 2. A method for electronic transmitter identification, characterized in that that the input of the digits of the transmitter location number via the keyboard of the frequency input or the sender's location via a separate alphanumeric keyboard. 30 method for electronic transmitter identification, characterized in that that the display of the entered transmitter location code immediately after the Entry or classified in the sequential sequence of the display of the transmitter data takes place for a certain time on the alphanumeric display unit. 4o method for electronic transmitter identification, characterized in that that after voting on a transmitter, corresponding numbered keys are pressed with which the other programs of this broadcaster can be called up directly can. 5. A method for electronic transmitter identification, characterized in that that electronic displays are provided in the receiver on which the transmitters assigned memory contents can be represented graphically and / or in writing0 6. The method according to claim 5, characterized in that the transmitter location input takes place on the graphic by touching the place of residence with the help of a light pen and then the selected reception area in question graphically or in tabular form with clear transmitter information for targeted retrieval with the light pen or a manual line / column marking (cursor) is available 7. Procedure for Electronic transmitter identification, characterized in that, after actuation one button, all available station names on a suitable alphanumeric display appear one after the other and after manual stop to select a desired broadcaster, the closest or most powerful station after entering the program number again is set automatically. 8. A method for electronic transmitter identification, characterized in that that the receiver has an alphanumeric input keyboard with which the Station name and the program, to vote on a closest or most powerful one Station of this choice, can be keyed in.