DE2746575C2 - Alphanumeric display of the device function setting in computer-controlled communications equipment such as television, radio or remote control devices - Google Patents

Alphanumeric display of the device function setting in computer-controlled communications equipment such as television, radio or remote control devices

Info

Publication number
DE2746575C2
DE2746575C2 DE2746575A DE2746575A DE2746575C2 DE 2746575 C2 DE2746575 C2 DE 2746575C2 DE 2746575 A DE2746575 A DE 2746575A DE 2746575 A DE2746575 A DE 2746575A DE 2746575 C2 DE2746575 C2 DE 2746575C2
Authority
DE
Germany
Prior art keywords
display
computer
information
function
memory
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
DE2746575A
Other languages
German (de)
Other versions
DE2746575A1 (en
Inventor
Willy 1000 Berlin Kanow
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.)
Loewe Opta GmbH
Original Assignee
Loewe Opta 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
Application filed by Loewe Opta GmbH filed Critical Loewe Opta GmbH
Priority to DE2746523A priority Critical patent/DE2746523B2/en
Priority to DE2746575A priority patent/DE2746575C2/en
Priority to DE19782822672 priority patent/DE2822672A1/en
Priority to GB7831397A priority patent/GB2006559B/en
Priority to BE191142A priority patent/BE871290A/en
Priority to AT0741978A priority patent/AT375223B/en
Publication of DE2746575A1 publication Critical patent/DE2746575A1/en
Application granted granted Critical
Publication of DE2746575C2 publication Critical patent/DE2746575C2/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J1/00—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general
    • H03J1/18—Control by auxiliary power
    • H03J1/22—Control by auxiliary power with stepping arrangements actuated by control pulses
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
    • G11B19/02—Control of operating function, e.g. switching from recording to reproducing
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J1/00—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general
    • H03J1/0008—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general using a central processing unit, e.g. a microprocessor
    • H03J1/0016—Indicating arrangements
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J1/00—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general
    • H03J1/0008—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general using a central processing unit, e.g. a microprocessor
    • H03J1/0041—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general using a central processing unit, e.g. a microprocessor for frequency synthesis with counters or frequency dividers
    • H03J1/005—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general using a central processing unit, e.g. a microprocessor for frequency synthesis with counters or frequency dividers in a loop
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J1/00—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general
    • H03J1/02—Indicating arrangements
    • H03J1/04—Indicating arrangements with optical indicating means
    • H03J1/045—Indication of the tuning band, the bandwidth, tone control, the channel number, the frequency, or the like
    • H03J1/047—Indication of the tuning band, the bandwidth, tone control, the channel number, the frequency, or the like using electronic means, e.g. LED's
    • H03J1/048—Indication of the tuning band, the bandwidth, tone control, the channel number, the frequency, or the like using electronic means, e.g. LED's with digital indication
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J5/00—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner
    • H03J5/02—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with variable tuning element having a number of predetermined settings and adjustable to a desired one of these settings
    • H03J5/0245—Discontinuous tuning using an electrical variable impedance element, e.g. a voltage variable reactive diode, in which no corresponding analogue value either exists or is preset, i.e. the tuning information is only available in a digital form
    • H03J5/0254—Discontinuous tuning using an electrical variable impedance element, e.g. a voltage variable reactive diode, in which no corresponding analogue value either exists or is preset, i.e. the tuning information is only available in a digital form the digital values being transfered to a D/A converter
    • H03J5/0263—Discontinuous tuning using an electrical variable impedance element, e.g. a voltage variable reactive diode, in which no corresponding analogue value either exists or is preset, i.e. the tuning information is only available in a digital form the digital values being transfered to a D/A converter the digital values being held in an auxiliary non erasable memory
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J5/00—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner
    • H03J5/02—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with variable tuning element having a number of predetermined settings and adjustable to a desired one of these settings
    • H03J5/0245—Discontinuous tuning using an electrical variable impedance element, e.g. a voltage variable reactive diode, in which no corresponding analogue value either exists or is preset, i.e. the tuning information is only available in a digital form
    • H03J5/0272—Discontinuous tuning using an electrical variable impedance element, e.g. a voltage variable reactive diode, in which no corresponding analogue value either exists or is preset, i.e. the tuning information is only available in a digital form the digital values being used to preset a counter or a frequency divider in a phase locked loop, e.g. frequency synthesizer
    • H03J5/0281—Discontinuous tuning using an electrical variable impedance element, e.g. a voltage variable reactive diode, in which no corresponding analogue value either exists or is preset, i.e. the tuning information is only available in a digital form the digital values being used to preset a counter or a frequency divider in a phase locked loop, e.g. frequency synthesizer the digital values being held in an auxiliary non erasable memory
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/16—Circuits
    • H04B1/20—Circuits for coupling gramophone pick-up, recorder output, or microphone to receiver
    • H04B1/202—Circuits for coupling gramophone pick-up, recorder output, or microphone to receiver by remote control

Description

der gleichzeitig für die Decodierung der Adressen für die einzelnen Funktionssteiler dientwhich is also responsible for decoding the addresses for the individual function divider is used

Die Erfindung ist für alle nachrichtentechnischen Geräte einsetzbar, da das Anzeigefeld zur Anzeige der verschiedenen Funktionen beliebig erweiterbar und ausführbar ist.The invention can be used for all communications equipment, since the display panel for displaying the various functions can be expanded and executed as required.

Die Erfindung wird nachfolgend in einem Ausführungsbeispiel für ein Hifi-Kombinationsgerät mit Tonband und Plattenspieler beschrieben.The invention is described below in an exemplary embodiment for a hi-fi combination device with a tape recorder and a record player.

In F i g. 1 ist eine Anzeigeanordnung aus verschiedenen Einzelanzeigen für die alphanumerische Anzeige von variablen Größen und Programm und Frequenzen sowie der Festanzeige der eingestellten Funktionen dargestelltIn Fig. 1 is a display arrangement made up of various individual displays for the alphanumeric display of variable sizes and programs and frequencies as well as the permanent display of the set functions

In F i g. 2 ist eine Befehlsliste zur Ansteuerung der einzelnen Anzeigestellen dargestellt Wie aus der Befehlsliste ersichtlich ist ist jedem Anzeigewert ein Datenwort zugeordnet und jedem Anzeigemittel eine entsprechende Adressierung. Hierdurch wird sichergestellt daß über den Computer immer die Ziffer tatsächlich angesteuert wird, die eine Anzeigeveränderung signalisieren soll.In Fig. 2 shows a command list for controlling the individual display points. As can be seen from the command list, a data word is assigned to each display value and a corresponding addressing is assigned to each display means. This ensures that the computer always actually controls the digit that is supposed to signal a change in the display.

Hierzu 2 Blatt ZeichnungenFor this purpose 2 sheets of drawings

2525th

3030th

3535

4040

4545

Claims (6)

1 2 iier Sichtanzeige angesteuert wird, die aus einer einPatentansprüche: . zigen Kontrolleuchte oder einer alphanumerischen . . ' Anzeige besteht, in die Ober den Datenbus die Funk-1 2 iier visual display is controlled, which is based on a patent claims:. umpteen indicator light or an alphanumeric. . '' There is a display in which the radio 1. Computergesteuertes nachrichtentechnisches tion eingeschrieben wird. Gerät, insbesondere Fernseh-, Rundfunkempfangs- 51. Computerized telecommunications tion is enrolled. Device, in particular television, radio reception 5 und Hifi-Gerlt, mit am Gerat und/oder an einer and hi-fi device, with on the device and / or on one drahtlos oder drahtgebunden Signale übertragenden Fernbedienung angeordneten Bedienorganen, wieTransmit wireless or wired signals Remote control arranged control elements, such as Tasten, Sensoren und/oder Stellgliedern, zum Steu- Die Erfindung betrifft ein computergesteuertes nach-Keys, sensors and / or actuators to control the invention relates to a computer-controlled post- ern. Ein- und Umschalten von variablen und festen 10 richtentechnisches Gerät nach dem Oberbegriff des An-Ren. Switching on and off variable and fixed 10 judging devices according to the generic term of Gerätefunktionen, wobei die Funktionsänderungen Spruchs 1.Device functions, whereby the changes in function according to 1. und Funktionseinstellungen der variablen und indivi- In der DE-Z. »Funkschau«, Heft 17/1977, Seiduell einstellbaren Funktionsgrößen des Gerätes te 763—768, ist ein mikrocomputergesteuertes' Fernsehalphanumerisch in einer Sichtanzeige aus mehreren gerät beschrieben, bei dem die alphanumerische Anzei-Einzelziffern angezeigt werden, und wobei gleich- 15 ge im Parallelbetrieb zur eingestellten Funktion über zeitig durch Belegung entsprechender Leuchtsignale einen Programmspeicher erfolgt, mit dem ein Segmentdie Betriebszustande signalisiert werden nach Pa- treiber und ein Digital&siber für die verwendete LED-tentanmeldung P27465232-35, dadurch ge- Anzeige verbunden sind. Die LED-Anzeige selbst ist in kennzeichnet, daß von dem programmierba- zwei Gruppen aufgeteilt, und zwar in eine vierstellige ren Mikrocomputer eine den von ihm angesteuerten 20 Anzeige für Uhrzeit, Datum oder Abstimmspannung Funktionsstellern zugeführte Information propor- und in eine zweistellige Anzeige für die Programmspeitionale digitale Mehrbitinformation in einen Daten- cherplatzzahl oder den Fernsehbereich. Die variablen bus geschoben wird, welche Mehrbitinformation in Analoggrößen werden dabei alphanumerisch nicht an- einem Code codiert ist, der eine direkte oder indirek- gezeigt. Die Ziffern werden einzeln eingeschrieben, und te Anzeige des entsprechenden Binärwortes in einer 25 zwar nacheinander. Eine Veränderung einzelner Posidigitalen Leuchtanzeigeeinheit ermöglicht und in ei- tionen ist nur in der Gesamtheit möglich,
nen vom Computer über einen Adressdecoder und Der Erfindung liegt die Aufgabe zugrunde, in einem Adressbus adressierten Informationsspeicher der computergesteuerten nachrichtentechnischen Gerät ei-Anzeige eingelesen ist, und daß mit dem Informa- ne alphanumerische Anzeige für alle einzustellenden tionsspeicher eine alphanumerische Anzeigeeinheit 30 Funktionen vorzusehen, wobei für die Anzeige ein geverbunden ist, wobei die Mehrbitinformation so lan- sonderter Datenspeicher vorgesehen sein soll, in dem ge gespeichert bleibt und angezeigt wird, bis eine die vom Mikrocomputer errechneten Ausgangsdaten neue Mehrbitinformation in den Informationsspei- gespeichert und direkt oder indirekt über Codierstufen eher eingelesen wird. der Anzeige zugeführt werden sollen. and function settings of the variable and indivi- In DE-Z. "Funkschau", Issue 17/1977, Seiduell adjustable function variables of the device te 763-768, is a microcomputer-controlled 'television alphanumerically described in a display made up of several devices, in which the alphanumeric display single digits are displayed, and with the same 15 ge in parallel operation for the set function via a program memory with which a segment the operating states are signaled according to the driver and a digital signal for the LED tent registration P27465232-35 used, thereby connected to the display. The LED display itself is in that divided by the programmierba- two groups, namely in a four-digit ren microcomputer one of the 20 display for time, date or tuning voltage function controls supplied information propor- and in a two-digit display for the function Program-specific digital multi-bit information in a data storage number or the television area. The variable bus is shifted, which multi-bit information in analog quantities is alphanumerically not coded to a code, which is shown directly or indirectly. The digits are written individually, and the corresponding binary word is displayed one after the other in a 25. A change of individual posi-digital light display unit enables and in one unit is only possible as a whole,
NEN from the computer via an address decoder and the object of the invention is to read in an address bus addressed information memory of the computer-controlled telecommunications device ei-display, and that with the information, an alphanumeric display for all memory to be set to provide an alphanumeric display unit 30 functions, with for the display is connected, the multi-bit information being provided in a separate data memory in which ge remains stored and is displayed until the output data calculated by the microcomputer is new multi-bit information stored in the information memory and read in directly or indirectly via coding stages will. to be fed to the display. 2. Computergesteuertes nachrichtentechnisches 35 Die Aufgabe wird erfindungsgemäß nach der im Gerät nach Anspruch 1, dadurch gekennzeichnet, Kennzeichen des Anspruchs 1 angeführten Lehre gedaß der Computer die Mehrbit-Anzeigeinformation, löst. Vorteilhafte Weiterbildungen der Erfindung sind in die aus der Einstellinformation abgeleitet ist, in ei- den Unteransprüchen beschrieben.2. Computer-controlled telecommunications 35 According to the invention, the object is achieved according to the im Device according to Claim 1, characterized in that the teaching given in Claim 1 is characterized the computer resolves the multi-bit display information. Advantageous developments of the invention are in which is derived from the setting information, described in one of the subclaims. nem BCD-7-Segmentcode abgibt und daß eine di- Nach der Erfindung wird die alphanumerische Anzei-emits a BCD-7-segment code and that a di- According to the invention, the alphanumeric display is rekte Eingabe in ein 7-Segment-Anzeigedisplay mit 40 ge über einen Datenbus angesteuert, derart, daß in dieRight input in a 7-segment display with 40 ge controlled via a data bus, so that in the Speicher erfolgt. den Sichtanzeigen zugeordneten Informationsspeicher,Storage takes place. Information memory associated with the visual displays, 3. Computergesteuertes nachrichtentechnisches die bei entsprechender Ausbildung der Anzeigen mit Gerät nach Anspruch 1 oder 2, dadurch gekenn- diesen in einer Einheit integriert sein können, die Mehrzeichnet, daß die angezeigten Funktionseinstellun- bitinformation gespeichert wird. Der Speicher wird vom gen den eingestellten Wert wiedergeben und daß 45 Computer adressiert. Die Aufrechnung und Adressieder Computer bei Änderung der Funktionseinstel- rung erfolgen ausschließlich im Computer. Eine Abfralung erst nach dem Einlesen der letzten Mehrbit- gung von Speicherzuständen ist nicht erforderlich, da Einstellinformation in den adressierten Funktions- der Computer lediglich die Änderungsgröße mitteilt speicher diesen Wert in eine Mehrbit-Anzeigeinfor- und die adressierte Anzeigeziffer den neuen Wert anmation umrechnet, die in dem Informationsspeicher 50 zeigt. Die Einschreibung erfolgt im Anschluß an die Einder adressierten Anzeige eingeschrieben wird. gäbe oder Änderungsanweisung an den entsprechenden3. Computer-controlled telecommunications with the appropriate training of the advertisements Device according to claim 1 or 2, characterized in that it can be integrated in a unit that draws more, that the displayed function setting bit information is saved. The memory is used by the gen reproduce the set value and that 45 computers are addressed. Offsetting and addressing Computer when the function setting is changed take place exclusively in the computer. A deforestation only after the last multiple bit of memory status has been read in is not necessary because Setting information in the addressed function - the computer only communicates the change size store this value in a multi-bit display information and the addressed display number the new value converted, which shows in the information memory 50. The enrollment takes place after the parents addressed ad is registered. would give or change instruction to the appropriate 4. Computergesteuertes nachrichtentechnisches Funktionssteller. Durch Umsetzung in einen 7-Seg-Gerät nach einem der vorhergehenden Ansprüche, ment-Code ist eine direkte Eingabe in ein 7-Segmentdadurch gekennzeichnet, daß jede Einzelziffer bzw. Anzeigedisplay möglich.4. Computer-controlled communications function controller. By converting it into a 7-seg device according to any one of the preceding claims, the ment code is a direct entry into a 7-segment thereby marked that each single digit or display is possible. jeder Buchstabe und/oder Symbol der Anzeige über 55 Gegenüber der bekannten Ausbildung weist die Erden Datenbus und den Adreßbus mit dem Mikro- findung den Vorteil auf, daß sämtliche Eingabeinformacomputer verbunden ist und daß die Aussteuerung tionen auf einfache Weise anzeigbar sind, und daß durch derselben gesondert über den Computer erfolgt die Adressierung der einzelnen Anzeigemittel über ei-each letter and / or symbol of the display over 55 Compared to the known training points the earth The data bus and the address bus with the micro-invention have the advantage that all input information computers is connected and that the control functions can be displayed in a simple manner, and that by the same separately via the computer, the addressing of the individual display means takes place via a 5. Computergesteuertes nachrichtentechnisches nen Adreßbus eine zugeordnete Anzeige sichergestellt Gerät nach einem der vorhergehenden Ansprüche, 60 ist. Neben der alphanumerischen Anzeige ist ferner vordadurch gekennzeichnet, daß parallel zur Anzeige gesehen, daß die Beeinflussungsrichtung bei variablen des eingestellten Wertes eine Sichtanzeige ange- Größen angezeigt wird (-I- oder — Symbole und dergl.). steuert wird, die die betätigte Einstellinformation Bei Betätigung der entsprechenden Befehlstaste erfolgt anzeigt. parallel zur Änderungsanzeige auch eine Anzeige der5. Computer-controlled telecommunications NEN address bus ensures an associated display Device according to one of the preceding claims, 60. In addition to the alphanumeric display, it is also predicted characterized that seen parallel to the display that the direction of influence is variable A visual display of the set value is displayed (-I- or - symbols and the like). controls which the actuated setting information takes place when the corresponding command key is actuated indicates. parallel to the change notification also a notification of the 6. Computergesteuertes nachrichtentechnisches 65 betätigten Funktion, z. B. durch Kontrollampen. Hierzu Gerät nach Anspruch 5, dadurch gekennzeichnet, schaltet der Computer eine Adresse an den Informadaß bei Betätigung einer Gerätefunktion über den tionsspeicher der entsprechenden Anzeige. Die Adres-Computer ein adressierter Informationsspeicher ei- sendecodierung erfolgt dabei über einen Adreßdecoder,6. Computer-controlled telecommunications 65 actuated function, e.g. B. by control lamps. For this Apparatus according to Claim 5, characterized in that the computer switches an address to the information when activating a device function via the function memory of the corresponding display. The address computer an addressed information memory is encoded using an address decoder,
DE2746575A 1977-10-17 1977-10-17 Alphanumeric display of the device function setting in computer-controlled communications equipment such as television, radio or remote control devices Expired DE2746575C2 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
DE2746523A DE2746523B2 (en) 1977-10-17 1977-10-17 Computerized communications equipment
DE2746575A DE2746575C2 (en) 1977-10-17 1977-10-17 Alphanumeric display of the device function setting in computer-controlled communications equipment such as television, radio or remote control devices
DE19782822672 DE2822672A1 (en) 1977-10-17 1978-05-24 Control system for radio or TV receiver - has rotary knobs generating pulses describing setting of wanted variable and used by computer for updating
GB7831397A GB2006559B (en) 1977-10-17 1978-07-27 Telecommunications and/or sound reproduction equipment
BE191142A BE871290A (en) 1977-10-17 1978-10-16 PILOT TELECOMMUNICATION DEVICE BY COMPUTER
AT0741978A AT375223B (en) 1977-10-17 1978-10-16 COMPUTER CONTROLLED MESSAGE DEVICE

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE2746523A DE2746523B2 (en) 1977-10-17 1977-10-17 Computerized communications equipment
DE2746575A DE2746575C2 (en) 1977-10-17 1977-10-17 Alphanumeric display of the device function setting in computer-controlled communications equipment such as television, radio or remote control devices
DE19782822672 DE2822672A1 (en) 1977-10-17 1978-05-24 Control system for radio or TV receiver - has rotary knobs generating pulses describing setting of wanted variable and used by computer for updating

Publications (2)

Publication Number Publication Date
DE2746575A1 DE2746575A1 (en) 1979-04-26
DE2746575C2 true DE2746575C2 (en) 1989-04-27

Family

ID=62567108

Family Applications (3)

Application Number Title Priority Date Filing Date
DE2746575A Expired DE2746575C2 (en) 1977-10-17 1977-10-17 Alphanumeric display of the device function setting in computer-controlled communications equipment such as television, radio or remote control devices
DE2746523A Granted DE2746523B2 (en) 1977-10-17 1977-10-17 Computerized communications equipment
DE19782822672 Granted DE2822672A1 (en) 1977-10-17 1978-05-24 Control system for radio or TV receiver - has rotary knobs generating pulses describing setting of wanted variable and used by computer for updating

Family Applications After (2)

Application Number Title Priority Date Filing Date
DE2746523A Granted DE2746523B2 (en) 1977-10-17 1977-10-17 Computerized communications equipment
DE19782822672 Granted DE2822672A1 (en) 1977-10-17 1978-05-24 Control system for radio or TV receiver - has rotary knobs generating pulses describing setting of wanted variable and used by computer for updating

Country Status (4)

Country Link
AT (1) AT375223B (en)
BE (1) BE871290A (en)
DE (3) DE2746575C2 (en)
GB (1) GB2006559B (en)

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DE2746575C2 (en) * 1977-10-17 1989-04-27 Loewe Opta Gmbh, 8640 Kronach Alphanumeric display of the device function setting in computer-controlled communications equipment such as television, radio or remote control devices

Also Published As

Publication number Publication date
DE2822672C2 (en) 1990-01-11
GB2006559B (en) 1982-03-17
BE871290A (en) 1979-02-15
DE2746523C3 (en) 1988-03-24
DE2746575A1 (en) 1979-04-26
AT375223B (en) 1984-07-10
DE2746523A1 (en) 1979-04-19
DE2746523B2 (en) 1981-03-12
GB2006559A (en) 1979-05-02
DE2822672A1 (en) 1979-11-29
ATA741978A (en) 1983-11-15

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