EP0142050B1 - Signal transmission cable - Google Patents

Signal transmission cable Download PDF

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Publication number
EP0142050B1
EP0142050B1 EP84112384A EP84112384A EP0142050B1 EP 0142050 B1 EP0142050 B1 EP 0142050B1 EP 84112384 A EP84112384 A EP 84112384A EP 84112384 A EP84112384 A EP 84112384A EP 0142050 B1 EP0142050 B1 EP 0142050B1
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EP
European Patent Office
Prior art keywords
cable
pour
caractérisé
que
signaux
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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
EP84112384A
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German (de)
French (fr)
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EP0142050A3 (en
EP0142050A2 (en
Inventor
Volker Kühn
Thomas Kühn
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.)
Audioplan Renate Kuehn
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Audioplan Renate Kuehn
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Publication date
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Publication of EP0142050A2 publication Critical patent/EP0142050A2/en
Publication of EP0142050A3 publication Critical patent/EP0142050A3/en
Application granted granted Critical
Publication of EP0142050B1 publication Critical patent/EP0142050B1/en
Expired legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding  
    • H01R13/658—High frequency shielding arrangements, e.g. against EMI [Electro-Magnetic Interference] or EMP [Electro-Magnetic Pulse]
    • H01R13/6591—Specific features or arrangements of connection of shield to conductive members
    • H01R13/65912—Specific features or arrangements of connection of shield to conductive members for shielded multiconductor cable
    • H01R13/65918—Specific features or arrangements of connection of shield to conductive members for shielded multiconductor cable wherein each conductor is individually surrounded by shield
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B11/00—Communication cables or conductors
    • H01B11/02—Cables with twisted pairs or quads
    • H01B11/06—Cables with twisted pairs or quads with means for reducing effects of electromagnetic or electrostatic disturbances, e.g. screens
    • H01B11/08—Screens specially adapted for reducing cross-talk
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B11/00—Communication cables or conductors
    • H01B11/02—Cables with twisted pairs or quads
    • H01B11/06—Cables with twisted pairs or quads with means for reducing effects of electromagnetic or electrostatic disturbances, e.g. screens
    • H01B11/10—Screens specially adapted for reducing interference from external sources
    • H01B11/1033—Screens specially adapted for reducing interference from external sources composed of a wire-braided conductor
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B11/00—Communication cables or conductors
    • H01B11/18—Coaxial cables; Analogous cables having more than one inner conductor within a common outer conductor
    • H01B11/20—Cables having a multiplicity of coaxial lines

Definitions

  • the invention relates to a signal cable, for. B. amplifier cable, with two juxtaposed insulated conductors with terminal elements arranged at their ends.
  • the invention relates in particular to a signal cable for the transmission of music signals between components of a music system.
  • the invention also relates to cables for the transmission of digital signals, for example in data communication.
  • the signal cables used are those with a common shielding of both conductors by a shielding line surrounding them, which is electrically connected to one of the individual conductors on the connecting element.
  • the invention is therefore based on the object of developing a signal cable of the type mentioned at the outset which has significantly better transmission properties than the known cables and in particular also avoids parasitic magnetic and / or capacitive couplings of the two individual conductors with the associated disadvantageous pulse delays and the distortions caused thereby, such as external interference and its influence on the individual conductors or the signals transmitted through them.
  • the conductors and the individual shields are jointly surrounded by an overall shield that is electrically insulated from them, it being possible in particular in a manner known per se that the overall shield, but not the individual shields, with one of the connection elements is electrically connected.
  • the individual shields are designed as bare or tinned copper mesh and / or that the conductors are silver-plated.
  • the overall screen could also be designed as a bare or tinned copper mesh, but according to a preferred embodiment, it is provided that the overall screen is designed as a silver-plated copper mesh.
  • these individual conductors have a greater thickness, for example in the region of a cross section of more than 0.5 mm 2 , these advantageously consist of individually insulated strands, which are preferably themselves silver-plated; insulation made of fluorocarbon material such as (P) TFE, FEP, PFA can be selected.
  • fluorocarbon material such as (P) TFE, FEP, PFA
  • the signal cable 1 has two individual conductors 2.
  • the conductors 2 are connected at their ends to connection elements 4 in the form of plugs, the conductor 2 being electrically connected to a plug socket 6 and the conductor 3 being each electrically connected to a plug pin 7 insulated from the socket 6.
  • the individual conductors 2, 3 can consist, for example, of silver-plated copper strands. If the individual conductors 2, 3 have larger cross sections, for example more than 0.5 mm 2 , it is advantageous to design the conductors with individually insulated strands, the strands having, for example, PTFE insulation.
  • the conductors 2, 3 are each as such surrounded by an insulating jacket 8, 9.
  • a single shield 11, 12 made of electrically conductive mesh-like shielding braid is arranged around the insulation 8, 9 coaxially with the conductors 2, 3.
  • Each individual screen 11, 12 is in turn surrounded by an insulating jacket 13, 14.
  • the described structure of each individual conductor arrangement 2, 8, 11, 13 or 3, 9, 12, 14 corresponds to a coaxial cable. While in a coaxial cable both the inner conductor (here, for example, 3) and the shielding braid (here, for example, 12) are connected to a pole of a connector, according to the invention, the individual shields 11, 12 end in front of the connecting elements 4, are not connected to them, but opposite this isolated.
  • both individual conductor arrangements 2, 8, 11, 13 and 3, 9, 12, 14 are arranged in a common insulating inner jacket 16, which is not necessary for electrical engineering reasons in the illustrated embodiment of the signal cable 1 according to the invention, since each individual conductor arrangement is due to the coats 13, 14 is insulated, but is also preferable for mechanical reasons.
  • the inner jacket 16 is in turn coaxially surrounded by an overall screen 17 in the form of a conductive shielding braid.
  • An outer insulating jacket 18, which strips the entire signal cable from the outside, is also connected to the outside.
  • the overall screen 17 is at least electrically connected to one of the connection elements 4 and there to one of the poles 6 and 7, in the exemplary embodiment shown with the plug-in sleeve 6.
  • the signal cable 1 according to the invention not only offers optimal shielding from external interference, but moreover in particular a reduction in the mutual influence of the signal-carrying conductors, which leads to interference, distortion, etc. in known signal cables.
  • the advantages according to the invention are achieved in particular in that the shields 11, 12 themselves are not switched on in the electrical conduction process, but rather are insulated from the connection elements and merely perform shielding tasks.
  • the cable according to the invention is also suitable for transmission in data communication, since delay time distortions etc. are minimized by the configurations according to the invention.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Communication Cables (AREA)
  • Insulated Conductors (AREA)

Description

Die Erfindung betrifft ein Signalkabel, z. B. Verstärkerkabel, mit zwei nebeneinander verlaufenden isolierten Leitern mit an ihren Enden angeordneten Anschlußelementen.The invention relates to a signal cable, for. B. amplifier cable, with two juxtaposed insulated conductors with terminal elements arranged at their ends.

Die Erfindung bezieht sich insbesondere auf ein Signalkabel zur Übertragung von Musiksignalen zwischen Komponenten einer Musikanlage. Neben solchen Phonokabeln bezieht sich die Erfindung auch auf Kabel zur Übertragung digitaler Signale, beispielsweise in der Datenkommunikation.The invention relates in particular to a signal cable for the transmission of music signals between components of a music system. In addition to such phono cables, the invention also relates to cables for the transmission of digital signals, for example in data communication.

In der Praxis werden als Signalkabel solche mit einer gemeinsamen Abschirmung beider Leiter durch eine diese umgebende Schirmleitung benutzt, die mit einem der Einzelleiter am Anschlußelement elektrisch verbunden ist.In practice, the signal cables used are those with a common shielding of both conductors by a shielding line surrounding them, which is electrically connected to one of the individual conductors on the connecting element.

Weiterhin wurde schon versucht Koaxialkabel einzusetzen, bei denen also der eine Einzelleiter eine Litze ist und der andere Einzelleiter ein diese umgebender koaxialer Schirm ist. Schließlich wurde versucht zwei im Querschnitt ringförmige Leitungen koaxial zueinander anzuordnen, um so die Übertragungseigenschaften eines solchen Kabels zu verbessern. Im allgemeinen bedingt aber die Erreichung der Verbesserung hinsichtlich einer Kenngröße eine Verschlechterung hinsichtlich anderer Kenngrößen, so daß im allgemeinen bei den bekannten Kabeln immer gewisse Nachteile in Kauf zu nehmen sind bzw. in Kauf genommen werden, wenn diese als weniger gewichtig bewertet werden.Furthermore, attempts have already been made to use coaxial cables, in which one single conductor is a stranded wire and the other single conductor is a coaxial shield surrounding it. Finally, attempts were made to arrange two lines which are ring-shaped in cross-section coaxially with one another in order to improve the transmission properties of such a cable. In general, however, the achievement of the improvement with regard to one parameter causes a deterioration with respect to other parameters, so that in general with the known cables there are always certain disadvantages to be accepted or accepted if these are rated as less important.

Der Erfindung liegt daher die Aufgabe zugrunde, ein Signalkabel der eingangs genannten Art zu entwickeln, das gegenüber den bekannten Kabeln wesentlich bessere Übertragungseigenschaften aufweist und insbesondere parasitäre magnetische und/oder kapazitive Verkopplungen der beiden Einzelleiter mit hierdurch verbundenen nachteiligen Impulsverzögerungen und hierdurch bedingten Verzerrungen ebenso vermeidet, wie äußere Störungen und deren Einfluß auf die Einzelleiter bzw. die durch diese übertragenen Signale.The invention is therefore based on the object of developing a signal cable of the type mentioned at the outset which has significantly better transmission properties than the known cables and in particular also avoids parasitic magnetic and / or capacitive couplings of the two individual conductors with the associated disadvantageous pulse delays and the distortions caused thereby, such as external interference and its influence on the individual conductors or the signals transmitted through them.

Diese Aufgabe wird durch die im Anspruch 1 angegebenen Merkmale gelöst. Durch diese Merkmale wird zunächst eine Abschirmung der parallel verlaufenden Einzelleiter gegen Außenstörungen erreicht, darüberhinaus aber eine gegenseitige Abschirmung der Einzelleiter sowie eine Senkung der Gesamtkapazität des Kabels, wodurch eine Verringerung der gegenseitigen Beeinflussung der signalführenden Einzelleiter erzielt wird. Wesentlich ist nicht nur, daß die Einzelleiter jeweils durch Einzelschirme nach außen hin und gegeneinander abgeschirmt sind, sondern darüberhinaus, daß die einzelnen Schirme selbst nicht mit den Anschlußelementen und insbesondere auch dadurch auch nicht mit einem Einzelleiter elektrisch verbunden sind, sondern vielmehr in jeder Hinsicht elektrisch isoliert sind. Durch die erfindungsgemäße Ausgestaltung werden einerseits induktive, eine ungestörte Signalübertragung hindernde bzw. einer solchen entgegenstehende Einflüsse vermieden und andererseits praktisch eine Reihenanordnung von Kapazitäten mit der hierdurch bedingten Verringerung der Gesamtkapazität erzielt.This object is achieved by the features specified in claim 1. These features initially shield the parallel individual conductors against external interference, but also protect the individual conductors from one another and reduce the overall capacity of the cable, thereby reducing the mutual influence of the individual conductors carrying the signal. It is important not only that the individual conductors are shielded from one another and against each other by individual shields, but also that the individual shields themselves are not electrically connected to the connecting elements and, in particular, not to an individual conductor, but rather in all respects electrically are isolated. The design according to the invention on the one hand avoids inductive influences preventing an undisturbed signal transmission or opposing such influences and on the other hand practically achieves a series arrangement of capacitances with the resulting reduction in the total capacitance.

Gemäß einer bevorzugten Ausgestaltung der Erfindung ist vorgesehen, daß die Leiter und die Einzelschirme gemeinsam von einem gegenüber diesen elektrisch isolierten Gesamtschirm umgeben sind, wobei insbesondere auch in ansich bekannter Weise vorgesehen sein kann, daß der Gesamtschirm, nicht aber die Einzelschirme, mit einem der Anschlußelemente elektrisch verbunden ist. In weiterer Ausgestaltung ist vorgesehen, daß die Einzelschirme als blanke oder verzinnte Kupfergewebe ausgebildet sind und/oder daß die Leiter versilbert sind. Grundsätzlich könnte auch der Gesamtschirm als blankes oder verzinntes Kupfergewebe ausgebildet sein, aber gemäß einer bevorzugten Ausgestaltung ist aber vorgesehen, daß der Gesamtschirm als versilbertes Kupfergewebe ausgebildet ist. Insbesondere in dem Fall, daß die Einzelleiter eine größere Stärke, beispielsweise im Bereich von einem Querschnitt über 0,5 mm2 aufweisen, bestehen diese vorteilhafterweise aus einzeln isolierten Litzen, die vorzugsweise selbst versilbert sind; es kann eine Isolierung, aus Fluorkohlenstoffmaterial, wie (P)TFE, FEP, PFA gewählt werden.According to a preferred embodiment of the invention it is provided that the conductors and the individual shields are jointly surrounded by an overall shield that is electrically insulated from them, it being possible in particular in a manner known per se that the overall shield, but not the individual shields, with one of the connection elements is electrically connected. In a further embodiment it is provided that the individual shields are designed as bare or tinned copper mesh and / or that the conductors are silver-plated. In principle, the overall screen could also be designed as a bare or tinned copper mesh, but according to a preferred embodiment, it is provided that the overall screen is designed as a silver-plated copper mesh. In particular in the event that the individual conductors have a greater thickness, for example in the region of a cross section of more than 0.5 mm 2 , these advantageously consist of individually insulated strands, which are preferably themselves silver-plated; insulation made of fluorocarbon material such as (P) TFE, FEP, PFA can be selected.

Weitere Vorteile und Merkmale der Erfindung ergeben sich aus den Ansprüchen und aus der nachfolgenden Beschreibung, in der ein Ausführungsbeispiel des erfindungsgemäßen Kabels unter Bezugnahme auf die Zeichnung im einzelnen erläutert ist. Dabei zeigt:

  • Figur 1 eine Seitenansicht einer bevorzugten Ausgestaltung des erfindungsgemäßen Kabels, mit teilweise weggebrochenen Teilen;
  • Figur 2 ein schematische Darstellung der einzelnen nicht isolierenden Elemente des Kabels nach Figur 1;
  • Figur 3 einen Schnitt entlang der Linie 111-111 der Figur 1; und
  • Figur 4 eine schematische Darstellung des Schnitts der Figur 3.
Further advantages and features of the invention result from the claims and from the following description, in which an embodiment of the cable according to the invention is explained in detail with reference to the drawing. It shows:
  • Figure 1 is a side view of a preferred embodiment of the cable according to the invention, with parts broken away;
  • Figure 2 is a schematic representation of the individual non-insulating elements of the cable of Figure 1;
  • 3 shows a section along the line 111-111 of Figure 1; and
  • Figure 4 is a schematic representation of the section of Figure 3.

Das erfindungsgemäße Signalkabel 1 weist zwei Einzelleiter 2, auf. Die Leiter 2, sind an ihren Enden mit Anschlußelementen 4 in Form von Steckern verbunden, wobei der Leiter 2 mit einer Steckerbuchse 6 und der Leiter 3 jeweils mit einem gegen die Steckerbuchse 6 isolierten Steckstift 7 elektrisch verbunden ist.The signal cable 1 according to the invention has two individual conductors 2. The conductors 2 are connected at their ends to connection elements 4 in the form of plugs, the conductor 2 being electrically connected to a plug socket 6 and the conductor 3 being each electrically connected to a plug pin 7 insulated from the socket 6.

Die Einzelleiter 2, 3 können beispielsweise aus versilberten Kupferlitzen bestehen. Wenn die Einzelleiter 2, 3 größere Querschnitte, beispielsweise über 0,5 mm2 aufweisen, so ist es vorteilhaft die Leiter mit einzeln isolierten Litzen auszubilden, wobei die Litzen beispielsweise eine PTFE-Isolierung aufweisen.The individual conductors 2, 3 can consist, for example, of silver-plated copper strands. If the individual conductors 2, 3 have larger cross sections, for example more than 0.5 mm 2 , it is advantageous to design the conductors with individually insulated strands, the strands having, for example, PTFE insulation.

Die Leiter 2, 3 sind jeweils als solche von einem Isoliermantel 8, 9 umgeben. Um die Isolierung 8, 9 herum ist jeweils koaxial zu den Leitern 2, 3 ein Einzelschirm 11,12 aus elektrisch leitfähigem netzartigen Abschirmgeflecht angeordnet. Jeder Einzelschirm 11,12 ist wiederum von einem Isoliermantel 13, 14 umgeben. Insofern entspricht der beschriebene Aufbau jeder Einzelleiteranordnung 2, 8, 11, 13 bzw. 3, 9, 12, 14 an sich einem Koaxialkabel. Während bei einem Koaxialkabel aber sowohl der Innenleiter (hier beispielsweise 3) als auch das Abschirmgeflecht (hier beispielsweise 12) mit einem Pol eines Steckverbinders verbunden sind, enden erfindungsgemäß die Einzelabschirmungen 11, 12 vor den Anschlußelementen 4, sind mit diesen nicht verbunden, sondern gegenüber diesen isoliert.The conductors 2, 3 are each as such surrounded by an insulating jacket 8, 9. A single shield 11, 12 made of electrically conductive mesh-like shielding braid is arranged around the insulation 8, 9 coaxially with the conductors 2, 3. Each individual screen 11, 12 is in turn surrounded by an insulating jacket 13, 14. In this respect, the described structure of each individual conductor arrangement 2, 8, 11, 13 or 3, 9, 12, 14 corresponds to a coaxial cable. While in a coaxial cable both the inner conductor (here, for example, 3) and the shielding braid (here, for example, 12) are connected to a pole of a connector, according to the invention, the individual shields 11, 12 end in front of the connecting elements 4, are not connected to them, but opposite this isolated.

Beide Einzelleiteranordnungen 2, 8, 11, 13 und 3, 9,12,14 sind im dargestellten Ausführungsbeispiel in einem gemeinsamen isolierenden Innenmantel 16 angeordnet, der aus elektrotechnischen Gründen bei der dargestellten Ausführungsform des erfindungsgemäßen Signalkabels 1 ansich nicht erforderlich ist, da jede Einzelleiteranordnung durch die Mäntel 13, 14 isoliert ist, aber auch aus mechanischen Gründen vorzuziehen ist.In the exemplary embodiment shown, both individual conductor arrangements 2, 8, 11, 13 and 3, 9, 12, 14 are arranged in a common insulating inner jacket 16, which is not necessary for electrical engineering reasons in the illustrated embodiment of the signal cable 1 according to the invention, since each individual conductor arrangement is due to the coats 13, 14 is insulated, but is also preferable for mechanical reasons.

Der Innenmantel 16 ist wiederum koaxial von einem Gesamtschirm 17 in Form ebenfalls eines leitenden Abschirmgeflechts umgeben. Nach außen schließt sich weiterhin ein Außenisoliermantel 18 an, der das gesamte Signalkabel nach außen hin abisoliert. Der Gesamtschirm 17 ist zumindestens mit einem der Anschlußelemente 4 und dort mit einem der Pole 6 bzw. 7, im dargestellten Ausführungsbeispiel mit der Steckhülse 6 elektrisch verbunden.The inner jacket 16 is in turn coaxially surrounded by an overall screen 17 in the form of a conductive shielding braid. An outer insulating jacket 18, which strips the entire signal cable from the outside, is also connected to the outside. The overall screen 17 is at least electrically connected to one of the connection elements 4 and there to one of the poles 6 and 7, in the exemplary embodiment shown with the plug-in sleeve 6.

Das erfindungsgemäße Signalkabel 1 bietet nicht nur eine optimale Abschirmung von Außenstörungen, sondern darüberhinaus insbesondere eine Verringerung der gegenseitigen Beeinflussung der signalführenden Leiter, was bei bekannten Signalkabeln zu Störungen, Verzerrungen etc. führt. Die erfindungsgemäßen Vorteile werden insbesondere dadurch erreicht, daß die Abschirmungen 11, 12 selbst nicht in den elektrischen Leitungsvorgang mit eingeschaltet sind, sondern vielmehr gegenüber den Anschlußelementen isoliert sind und lediglich Abschirmaufgaben erfüllen. Neben dem Einsatz im Musikbereich eignet sich das erfindungsgemäße Kabel auch zur Übertragung in der Datenkommunikation, da durch die erfindungsgemäßen Ausgestaltungen Laufzeitverzerrungen etc. minimiert werden.The signal cable 1 according to the invention not only offers optimal shielding from external interference, but moreover in particular a reduction in the mutual influence of the signal-carrying conductors, which leads to interference, distortion, etc. in known signal cables. The advantages according to the invention are achieved in particular in that the shields 11, 12 themselves are not switched on in the electrical conduction process, but rather are insulated from the connection elements and merely perform shielding tasks. In addition to the use in the music field, the cable according to the invention is also suitable for transmission in data communication, since delay time distortions etc. are minimized by the configurations according to the invention.

Claims (9)

1. Cable pour signaux, par exemple cable pour amplificateur, comprenant deux conducteurs isolés (2, 3) s'étendant cote a côte, aux extremites desquels sont disposes des elements de raccordement (4), caractérisé en ce que chaque conducteur isolé (2, 3) est entouré par un blindage individuel coaxial propre (11, 12) electriquement conducteur, les blindages individuels (11, 12) étant isolés électriquement l'un de l'autre, et en ce que les blindages individuels (11, 12) sont isolés électriquement vis-à-vis des elements de raccordement (4).
2. Cable pour signaux selon la revendication 1, caractérisé en ce que les conducteurs (2, 3) et les blindages individuels (11, 12) sont entourés ensemble par un blindage global (17) isolé électriquement vis-à-vis de ceux-ci.
3. Cable pour signaux selon la revendication 2, caractérisé en ce que le blindage global (11) est relié électriquement a l'un des elements de raccordement (4).
4. Cable pour signaux selon la revendication 2, caractérisé en ce que le blindage global (11) est relié aux deux elements de raccordement (4).
5. Câble pour signaux selon l'une des revendications précédentes, caractérisé en ce que les blindages individuels (11, 12) sont realises sous forme de tissu de cuivre nu ou étamé.
6. Cable pour signaux selon l'une des revendications précédentes, caractérisé en ce que le blindage global (11) est realise sous forme de tissu de cuivre argenté.
7. Cable pour signaux selon l'une des revendications précédentes, caractérisé en ce que les conducteurs (2, 3) sont argentés.
8. Cable pour signaux selon l'une des revendications précédentes, caractérisé en ce que les conducteurs (2, 3) sont constitués par des torons isoIés individuellement.
9. Cable pour signaux selon la revendication 8, caractérisé en ce que I'isolation individuelle des torons est réalisée en carbure fIuoré.
EP84112384A 1983-10-14 1984-10-13 Signal transmission cable Expired EP0142050B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3337432 1983-10-14
DE3337432A DE3337432A1 (en) 1983-10-14 1983-10-14 SIGNAL CABLE

Publications (3)

Publication Number Publication Date
EP0142050A2 EP0142050A2 (en) 1985-05-22
EP0142050A3 EP0142050A3 (en) 1986-08-13
EP0142050B1 true EP0142050B1 (en) 1989-03-08

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EP84112384A Expired EP0142050B1 (en) 1983-10-14 1984-10-13 Signal transmission cable

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US (1) US4599483A (en)
EP (1) EP0142050B1 (en)
JP (1) JPS60101808A (en)
DE (2) DE3337432A1 (en)

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DE3477084D1 (en) 1989-04-13
JPS60101808A (en) 1985-06-05
EP0142050A3 (en) 1986-08-13
US4599483A (en) 1986-07-08
EP0142050A2 (en) 1985-05-22
DE3337432A1 (en) 1985-04-25

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