EP0485920B1 - Electrical cable with high propagation velocity - Google Patents
Electrical cable with high propagation velocity Download PDFInfo
- Publication number
- EP0485920B1 EP0485920B1 EP91119172A EP91119172A EP0485920B1 EP 0485920 B1 EP0485920 B1 EP 0485920B1 EP 91119172 A EP91119172 A EP 91119172A EP 91119172 A EP91119172 A EP 91119172A EP 0485920 B1 EP0485920 B1 EP 0485920B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- conductors
- insulating
- conductor
- cable
- rods
- 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 - Lifetime
Links
Images
Classifications
-
- 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
- H01B11/002—Pair constructions
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/02—Disposition of insulation
- H01B7/0233—Cables with a predominant gas dielectric
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/02—Disposition of insulation
- H01B7/0241—Disposition of insulation comprising one or more helical wrapped layers of insulation
Definitions
- the invention relates to an electrical cable with high propagation speed, such as those used to transmit data from one computer machine to another.
- To produce a cable having a high propagation speed it is known to reduce the linear capacity existing between two conductors of this cable, by increasing the distance between these conductors and the distance between these conductors and the screen; and by reducing the average value of the permittivity of the dielectrics located between these two conductors along the cable.
- This cable is bulky because the insulating core has a diameter much greater than the diameter of each of the 4 conductors. It maintains a predetermined distance between the conductors, so as to reduce the linear capacity between the conductors.
- the core and the first insulating layer may be made of polytetrafluoroethylene expanded.
- All the conductors are enclosed in a common tubular envelope.
- Said insulating tube prevents the turns of the rods of the two conductors from interlocking, and reduces the separation distance.
- the production of this tube, for each conductor increases the cost of manufacturing a cable.
- Document DE-A-5 99 312 describes a cable with a high propagation speed, comprising two conductors maintained at a predetermined distance, by means comprising, for each conductor, an insulating rod having a helical shape with non-contiguous turns, the longitudinal axis coincides with that of said conductor, each turn enclosing said conductor.
- a profile with a rectangular section, made of insulating material, is interposed between the two rods, which have turns in the same direction, to avoid overlapping of the turns, which would modify the distance between the two conductors.
- An insulating tape envelops the entire cable and therefore keeps the profile in place, between the two rods. The realization and the installation of the profile strike the cost of this cable.
- the object of the invention is to provide a cable having a high propagation speed, without having the drawbacks of cables of known types.
- the object of the invention is an electric cable with high propagation speed comprising a plurality of conductors and means for maintaining a predetermined distance between said conductors; characterized in that two insulating rods respectively enclosing two neighboring conductors have different pitches, not multiple from each other, so as never to overlap.
- the turns of the rod 1 ⁇ and the rod 4 ⁇ respectively enclose the conductors 2 ⁇ and 3 ⁇ .
- Each of the rods 1 ⁇ and 4 ⁇ is made from a straight cylindrical rod with circular section which is wound around one of the conductors 2 ⁇ or 3 ⁇ .
- Each rod 1 ⁇ and 4 ⁇ therefore encloses one of the conductors in these turns.
- the two rods 1 ⁇ and 4 ⁇ are wound with two constant, different steps, which are much greater than the diameter of the section of each rod, so that the free volume between the turns is very greater than the volume occupied by the turns.
- the steps are different and not multiple from each other, so that the two rods cannot overlap.
- a turn of the rod 1 ⁇ and a turn of the rod 4 ⁇ are in contact at a point 6, while the neighboring turns are not in contact because of the difference in pitch.
- the turns in contact are numerous enough to separate the two rods, and therefore the two conductors.
- the diameter of the rods can be chosen so as to separate the conductors, to reduce the linear capacity. But, above all, this type of cable makes it possible to reduce the linear capacity by reducing the average permittivity.
- the turns of the rods 1 ⁇ and 4 ⁇ occupy only a small portion of the volume located between the two conductors 2 ⁇ and 3 ⁇ , the rest being filled with air because the insulating material constituting the envelope 5 ⁇ does not penetrate in the space between the turns. Consequently, the average permittivity of this volume is lower than that of the polyethylene constituting the two rods.
- the average permittivity obtained is 1.2 while that of solid polyethylene is 2.28.
- the characteristic impedance is 150 ohms for frequencies above 1 MHz.
- the cable according to the invention can have a smaller footprint than a cable of known type, at equal speed, with equal attenuation, and with equal impedance.
- This exemplary embodiment can be coated with an electrical screen of a conventional type, and it can be twisted like a conventional pair.
- Alternative embodiments may consist in replacing the sheath 5 ⁇ of extruded polyethylene by an insulating tape wound in a helix. It is possible to prevent the effect of the humidity of the air contained in the cavities between the turns of the rods 1 ⁇ and 4 ⁇ , by depositing in these cavities a small amount of a powder which swells while absorbing the humidity , and which is used conventionally to protect from humidity the interior of coaxial cables comprising a solid dielectric having a helical shape.
- each conductor 2 ⁇ and 3 ⁇ is isolated individually by a cylindrical insulating sheath whose axis of symmetry of revolution coincides with the longitudinal axis of this conductor, said sheath surrounding said conductor and being itself surrounded by the turns of an insulating rod.
- Figure 2 shows a sectional view of this first embodiment, in the direction of view II-II.
- the rods 1 ⁇ and 4 ⁇ each having a straight section which is circular, the width of the space which separates the conductors 2 ⁇ and 3 ⁇ is substantially equal to twice the diameter of this straight section.
- the rod 22 is wound in the opposite direction to the direction of stranding of the conductors 21. Its function is to separate the conductors 21 from the screen 23 without the permittivity of the space between the conductors 21 and the screen 23 being very different that of air, unlike conventional solutions consisting of using polyester, polyethylene or polypropylene insulating tapes, solid or expanded.
- Each conductor 21 can be isolated individually by a continuous sheath, made of polyethylene for example, but it can also be isolated by a rod of helical shape similar to those described above with reference to FIG. 1 and to FIG. 2. Many variants are within the reach of ordinary skill in the art, such as for example the use of a screen placed lengthwise, instead of a screen placed helically.
- Figure 4 shows a sectional view of the second embodiment, in the direction of view IV-IV. It shows that the rod 22 separates all of the conductors 21 of the screen 23 by a space whose width is substantially equal to the diameter of the cross section of the rod 22. As shown in these figures, the proportion of insulating material present between the conductors 21 and the screen 23 is low, therefore the average permittivity of this space remains close to that of air.
- the cable By appropriately choosing the characteristics of the rod, or rods, it is possible to give the cable an average density of less than 1 so that the cable can float.
Landscapes
- Communication Cables (AREA)
Description
L'invention concerne un câble électrique à vitesse de propagation élevée, tels que ceux utilisés pour transmettre des données d'une machine informatique à une autre. Pour réaliser un câble ayant une vitesse de propagation élevée, il est connu de réduire la capacité linéique existant entre deux conducteurs de ce câble, en augmentant la distance entre ces conducteurs et la distance entre ces conducteurs et l'écran; et en réduisant la valeur moyenne de la permittivité des diélectriques situés entre ces deux conducteurs tout au long du câble.The invention relates to an electrical cable with high propagation speed, such as those used to transmit data from one computer machine to another. To produce a cable having a high propagation speed, it is known to reduce the linear capacity existing between two conductors of this cable, by increasing the distance between these conductors and the distance between these conductors and the screen; and by reducing the average value of the permittivity of the dielectrics located between these two conductors along the cable.
Il est connu de réduire la valeur moyenne de la permittivité du diélectrique séparant deux conducteurs d'un câble, en utilisant une matière plastique expansée. Par exemple, le polyéthylène a une permittivité de 2,28 lorsqu'il est massif et une permittivité réduite à 1,6 ou 1,5 lorsqu'il est expansé. Cependant les matériaux diélectriques expansés ont pour inconvénient une faible résistance mécanique qui provoque un déplacement relatif des conducteurs lorsque le câble est soumis à une flexion ou à une torsion. Ce déplacement provoque localement une altération des caractéristiques électriques du câble.It is known to reduce the average value of the permittivity of the dielectric separating two conductors of a cable, by using an expanded plastic material. For example, polyethylene has a permittivity of 2.28 when it is solid and a permittivity reduced to 1.6 or 1.5 when it is expanded. However, expanded dielectric materials have the disadvantage of a low mechanical resistance which causes relative displacement of the conductors when the cable is subjected to bending or twisting. This displacement locally causes an alteration of the electrical characteristics of the cable.
Par exemple, la demande de brevet européen n° EP-A-296 692 décrit un câble pour la transmission de données, comportant :
- une âme isolante ayant une forme cylindrique et creusée de 4 sillons longitudinaux régulièrement répartis et spiralés;
- 4 conducteurs nus placés dans ces sillons;
- une première couche isolante entourant l'ensemble des conducteurs et de l'âme;
- un écran métallique entourant la couche isolante;
- et une seconde couche périphérique isolante protègeant mécaniquement l'ensemble du câble.
- an insulating core having a cylindrical shape and hollowed out with 4 longitudinal grooves regularly distributed and spiraled;
- 4 bare conductors placed in these furrows;
- a first insulating layer surrounding all of the conductors and of the core;
- a metal screen surrounding the insulating layer;
- and a second insulating peripheral layer mechanically protecting the entire cable.
Ce câble est encombrant car l'âme isolante a un diamètre très supérieur au diamètre de chacun des 4 conducteurs. Elle maintient une distance prédéterminée entre les conducteurs, de façon à réduire la capacité linéique entre les conducteurs. L'âme et la première couche isolante peuvent être en polytétrafluoréthylène expansé.This cable is bulky because the insulating core has a diameter much greater than the diameter of each of the 4 conductors. It maintains a predetermined distance between the conductors, so as to reduce the linear capacity between the conductors. The core and the first insulating layer may be made of polytetrafluoroethylene expanded.
Le brevet US n° 2 348 752 décrit un câble à vitesse de propagation élevée, comportant deux conducteurs maintenus à une distance prédéterminée, par des moyens comportant, pour chaque conducteur :
- un jonc isolant ayant une forme hélicoïdale à spires non jointives, dont l'axe longitudinal est confondu avec celui dudit conducteur, chaque spire enserrant ledit conducteur, et les spires des deux joncs ayant des sens inverses;
- un tube isolant contenant ledit conducteur et le jonc, et étant tangent au jonc tout au long de celui-ci; l'axe longitudinal de ce tube étant confondu avec celui dudit conducteur.
- an insulating rod having a helical shape with non-contiguous turns, the longitudinal axis of which coincides with that of said conductor, each turn enclosing said conductor, and the turns of the two rods having opposite directions;
- an insulating tube containing said conductor and the rod, and being tangent to the rod all along the latter; the longitudinal axis of this tube being coincident with that of said conductor.
L'ensemble des conducteurs est enfermé dans une enveloppe tubulaire commune. Ledit tube isolant empêche que les spires des joncs des deux conducteurs puissent s'imbriquer, et réduire la distance de séparation. Mais la réalisation de ce tube, pour chaque conducteur, grève le coût de fabrication d'un câble.All the conductors are enclosed in a common tubular envelope. Said insulating tube prevents the turns of the rods of the two conductors from interlocking, and reduces the separation distance. However, the production of this tube, for each conductor, increases the cost of manufacturing a cable.
Le document DE-A-5 99 312 décrit un câble à vitesse de propagation élevée, comportant deux conducteurs maintenus à distance prédéterminée, par des moyens comportant, pour chaque conducteur, un jonc isolant ayant une forme hélicoïdale à spires non jointives, dont l'axe longitudinal est confondu avec celui dudit conducteur, chaque spire enserrant ledit conducteur. Un profilé à section rectangulaire, en matière isolante, est intercalé entre les deux joncs, qui ont des spires de même sens, pour éviter une imbrication des spires, qui modifierait la distance entre les deux conducteurs. Un ruban isolant enveloppe l'ensemble du câble et maintient donc le profilé en place, entre les deux joncs. La réalisation et la mise en place du profilé grève le coût de ce câble.Document DE-A-5 99 312 describes a cable with a high propagation speed, comprising two conductors maintained at a predetermined distance, by means comprising, for each conductor, an insulating rod having a helical shape with non-contiguous turns, the longitudinal axis coincides with that of said conductor, each turn enclosing said conductor. A profile with a rectangular section, made of insulating material, is interposed between the two rods, which have turns in the same direction, to avoid overlapping of the turns, which would modify the distance between the two conductors. An insulating tape envelops the entire cable and therefore keeps the profile in place, between the two rods. The realization and the installation of the profile strike the cost of this cable.
Le but de l'invention est de proposer un câble présentant une vitesse de propagation élevée, sans avoir les inconvénients des câbles de types connus.The object of the invention is to provide a cable having a high propagation speed, without having the drawbacks of cables of known types.
L'objet de l'invention est un câble électrique à vitesse de propagation élevée comportant une pluralité de conducteurs et des moyens pour maintenir une distance prédéterminée entre lesdits conducteurs; caractérisé en ce que deux joncs isolants enserrant respectivement deux conducteurs voisins ont des pas différents, non multiples l'un de l'autre, de manière à ne jamais s'imbriquer.The object of the invention is an electric cable with high propagation speed comprising a plurality of conductors and means for maintaining a predetermined distance between said conductors; characterized in that two insulating rods respectively enclosing two neighboring conductors have different pitches, not multiple from each other, so as never to overlap.
L'invention sera mieux comprise et d'autres détails apparaîtront à l'aide de la description ci-dessous et des figures l'accompagnant :
- la figure 1 montre un premier exemple de réalisation d'un câble selon l'invention;
- la figure 2 montre une section de ce premier exemple de réalisation;
- la figure 3 représente un deuxième exemple de réalisation du câble selon l'invention;
- la figure 4 représente une vue en coupe de ce deuxième exemple de réalisation.
- Figure 1 shows a first embodiment of a cable according to the invention;
- Figure 2 shows a section of this first exemplary embodiment;
- Figure 3 shows a second embodiment of the cable according to the invention;
- Figure 4 shows a sectional view of this second embodiment.
Le premier exemple de réalisation, représenté sur la figure 1, comporte :
- deux conducteurs nus parallèles, 2˝ et 3˝, en cuivre ou alliage conducteur, ayant une forme cylindrique, et de même diamètre;
- deux joncs, 1˝ et 4˝, en polyéthylène extrudé, ayant chacun une forme hélicoidale à spires non jointives, et tournant en sens inverse, et ont des pas différents;
- une gaine isolante et protectrice 5˝, en polyéthylène extrudé, recouvrant l'ensemble du câble, en ayant une épaisseur constante.
- two parallel bare conductors, 2˝ and 3˝, of copper or conductive alloy, having a cylindrical shape, and of the same diameter;
- two rods, 1˝ and 4˝, made of extruded polyethylene, each having a helical shape with non-contiguous turns, and rotating in opposite directions, and have different pitches;
- an insulating and
protective sheath 5˝, made of extruded polyethylene, covering the entire cable, having a constant thickness.
Les spires du jonc 1˝ et du jonc 4˝ enserrent respectivement les conducteurs 2˝ et 3˝. Chacun des joncs 1˝ et 4˝ est fabriqué à partir d'un jonc droit cylindrique à section circulaire qui est enroulé autour de l'un des conducteurs 2˝ ou 3˝. Chaque jonc 1˝ et 4˝ enserre donc l'un des conducteurs dans ces spires. Les deux joncs 1˝ et 4˝ sont enroulés avec deux pas constants, différents, et qui sont très supérieurs au diamètre de la section de chaque jonc, de telle sorte que le volume libre entre les spires est très supérieur au volume occupé par les spires.The turns of the
Les pas sont différents et non multiples l'un de l'autre, de telle sorte que les deux joncs ne peuvent s'imbriquer. Dans l'exemple représenté sur la figure 1, une spire du jonc 1˝ et une spire du jonc 4˝ sont en contact en un point 6, alors que les spires voisines ne sont pas en contact à cause de la différence de pas. Les spires en contact sont suffisamment nombreuses pour écarter les deux joncs, et par conséquent les deux conducteurs.The steps are different and not multiple from each other, so that the two rods cannot overlap. In the example shown in FIG. 1, a turn of the
Le diamètre des joncs peut être choisi de façon à écarter les conducteurs, pour réduire la capacité linéique. Mais, surtout, ce type de câble permet de réduire la capacité linéique en réduisant la permittivité moyenne. Les spires des joncs 1˝ et 4˝ n'occupent qu'une faible portion du volume situé entre les deux conducteurs 2˝ et 3˝, le reste étant rempli d'air car la matière isolante constituant l'enveloppe 5˝ ne pénètre pas dans l'espace situé entre les spires. Par conséquent, la permittivité moyenne de ce volume est inférieure à celle du polyéthylène constituant les deux joncs.The diameter of the rods can be chosen so as to separate the conductors, to reduce the linear capacity. But, above all, this type of cable makes it possible to reduce the linear capacity by reducing the average permittivity. The turns of the
Dans un exemple où le diamètre des conducteurs est de 0,65mm, le diamètre des joncs de 0,9mm, et le pas de 13,2mm, avec une couche périphérique 5˝ ayant une épaisseur nominale de 3mm, la permittivité moyenne obtenue est de 1,2 alors que celle du polyéthylène massif est de 2,28. L'impédance caractéristique est de 150 ohms pour des fréquences supérieures à 1 MHz. Réciproquement, le câble selon l'invention peut avoir un encombrement plus réduit qu'un câble de type connu, à vitesse égale, à atténuation égale, et à impédance égale.In an example where the diameter of the conductors is 0.65mm, the diameter of the rods of 0.9mm, and the pitch of 13.2mm, with a
Cette exemple de réalisation peut être revêtu d'un écran électrique d'un type classique, et il peut être torsadé comme une paire classique.This exemplary embodiment can be coated with an electrical screen of a conventional type, and it can be twisted like a conventional pair.
Des variantes de réalisation peuvent consister à remplacer la gaine 5˝ de polyéthylène extrudé par un ruban isolant enroulé en hélice. Il est possible de prévenir l'effet de l'humidité de l'air contenu dans les cavités entre les spires des joncs 1˝ et 4˝, en déposant dans ces cavités une petite quantité d'une poudre qui gonfle en absorbant l'humidité, et qui est utilisée classiquement pour protéger, de l'humidité, l'intérieur des câbles coaxiaux comportant un diélectrique solide ayant une forme hélicoïdale.Alternative embodiments may consist in replacing the
Selon une variante de réalisation, chaque conducteur 2˝ et 3˝ est isolé individuellement par une gaine isolante cylindrique dont l'axe de symétrie de révolution est confondu avec l'axe longitudinal de ce conducteur, ladite gaine entourant ledit conducteur et étant elle-même entourée par les spires d'un jonc isolant.According to an alternative embodiment, each
La figure 2 montre une vue en coupe de ce premier exemple de réalisation, selon la direction de vue II-II. Les joncs 1˝ et 4˝ ayant chacun une section droite qui est circulaire, la largeur de l'espace qui sépare les conducteurs 2˝ et 3˝ est sensiblement égale à deux fois le diamètre de cette section droite.Figure 2 shows a sectional view of this first embodiment, in the direction of view II-II. The
La figure 3 représente un deuxième exemple de réalisation du câble selon l'invention, qui comporte :
- une pluralité de conducteurs 21 isolés individuellement et toronnés;
un jonc isolant 22 de forme hélicoïdale et ayant une section droite qui est circulaire;un écran électrique 23, constitué par exemple d'un ruban métallique enroulé en hélice;- et une gaine isolante 24 recouvrant et protégeant l'ensemble du câble.
- a plurality of
conductors 21 individually insulated and stranded; - an insulating
rod 22 of helical shape and having a cross section which is circular; - an
electric screen 23, consisting for example of a metallic ribbon wound in a helix; - and an insulating
sheath 24 covering and protecting the entire cable.
Le jonc 22 est enroulé en sens opposé au sens de toronnage des conducteurs 21. Il a pour fonction de séparer les conducteurs 21 de l'écran 23 sans que la permittivité de l'espace entre les conducteurs 21 et l'écran 23 soit très différente de celle de l'air, contrairement aux solutions classiques consistant à utiliser des rubans isolants en polyester, polyéthylène, ou polypropylène, massifs ou expansés.The
Chaque conducteur 21 peut être isolé individuellement par une gaine continue, en polyéthylène par exemple, mais il peut aussi être isolés par un jonc de forme hélicoïdale analogue à ceux décrits précédemment en référence à la figure 1 et à la figure 2. De nombreuses variantes sont à la portée de l'homme de l'art, telles que par exemple l'utilisation d'un écran posé en long, au lieu d'un écran posé en hélice.Each
La figure 4 représente une vue en coupe du deuxième exemple de réalisation, selon la direction de vue IV-IV. Elle montre que le jonc 22 sépare l'ensemble des conducteurs 21 de l'écran 23 par un espace dont la largeur est sensiblement égale au diamètre de la section droite du jonc 22. Comme le montre ces figures, la proportion de matière isolante présente entre les conducteurs 21 et l'écran 23 est faible, par conséquent la permittivité moyenne de cet espace reste proche de celle de l'air.Figure 4 shows a sectional view of the second embodiment, in the direction of view IV-IV. It shows that the
En choisissant convenablement les caractéristiques du jonc, ou des joncs, il est possible de donner au câble une densité moyenne inférieure à 1 pour que le câble puisse flotter.By appropriately choosing the characteristics of the rod, or rods, it is possible to give the cable an average density of less than 1 so that the cable can float.
Claims (5)
- An electric cable having high propagation velocity, the cable comprising a plurality of conductors and means for maintaining a predetermined distance between said conductors;
said means comprising an insulating rod (1˝, 4˝) that is helically wound with non-touching turns around at least one of the conductors (2˝, 3˝), with the longitudinal axis of the helix coinciding with that of said conductor, and with each turn surrounding said conductor; two insulating rods (1˝, 4˝) surrounding respectively two adjacent conductors (2˝, 3˝) each having the same constant pitch turning in opposite directions, characterized in that two insulating rods (1˝, 4˝) surrounding respectively two adjacent conductors (2˝, 3˝) are at different pitches, that are not multiples of each other, thereby preventing them from interfitting. - A cable according to claim 1, characterized in that each conductor that is surrounded by a helically wound rod is provided with an insulating sheath whose axis of circular symmetry coincides with the longitudinal axis of said conductor, said sheath surrounding said conductor and being itself surrounded by the turns of said insulating rod.
- A cable according to claim 1, characterized in that it further includes an insulating sheath (5˝) surrounding the set of rods (1˝, 4˝), and of constant thickness.
- A cable according to claim 1, including a metal screen (23) surrounding a plurality of conductors (21) and characterized in that a rod (22) surrounds the set of conductors (21) and separates them from the electrical screen (23).
- A cable according to claim 4, characterized in that the conductors (20) are individually insulated by means of respective helically wound rods.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9014171 | 1990-11-14 | ||
| FR9014171A FR2669143B1 (en) | 1990-11-14 | 1990-11-14 | HIGH SPREAD SPEED ELECTRIC CABLE. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0485920A1 EP0485920A1 (en) | 1992-05-20 |
| EP0485920B1 true EP0485920B1 (en) | 1995-08-02 |
Family
ID=9402191
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP91119172A Expired - Lifetime EP0485920B1 (en) | 1990-11-14 | 1991-11-11 | Electrical cable with high propagation velocity |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US5286923A (en) |
| EP (1) | EP0485920B1 (en) |
| DE (1) | DE69111750T2 (en) |
| FR (1) | FR2669143B1 (en) |
Families Citing this family (43)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5740198A (en) * | 1994-06-17 | 1998-04-14 | Digital Equipment Corporation | Apparatus for increasing SCSI bus length through special transmission of only two bus signals |
| US5527996A (en) * | 1994-06-17 | 1996-06-18 | Digital Equipment Corporation | Apparatus for increasing SCSI bus length by increasing the signal propogation velocity of only two bus signals |
| US5742002A (en) * | 1995-07-20 | 1998-04-21 | Andrew Corporation | Air-dielectric coaxial cable with hollow spacer element |
| ITMI962717A1 (en) * | 1996-12-23 | 1998-06-23 | Marco Verdi | CABLES FOR HIGH-LOYALTY AUDIO SYSTEMS |
| US5872334A (en) * | 1997-03-14 | 1999-02-16 | International Business Machines Corporation | High-speed cable |
| DE19724685C1 (en) * | 1997-06-03 | 1998-12-24 | Volkswagen Ag | Process for the production of a flexible cable harness |
| FR2785715B1 (en) * | 1998-11-05 | 2000-12-08 | Sagem | HIGH FREQUENCY PAIR OR QUARTE TRANSMISSION CABLE |
| US6506976B1 (en) * | 1999-09-14 | 2003-01-14 | Avaya Technology Corp. | Electrical cable apparatus and method for making |
| US20040055777A1 (en) | 2002-09-24 | 2004-03-25 | David Wiekhorst | Communication wire |
| US7214880B2 (en) * | 2002-09-24 | 2007-05-08 | Adc Incorporated | Communication wire |
| US7511225B2 (en) | 2002-09-24 | 2009-03-31 | Adc Incorporated | Communication wire |
| EP2259441A3 (en) | 2003-07-11 | 2013-05-01 | Panduit Corporation | Alien Crosstalk suppression with enhanced patch cord. |
| US7115815B2 (en) * | 2003-10-31 | 2006-10-03 | Adc Telecommunications, Inc. | Cable utilizing varying lay length mechanisms to minimize alien crosstalk |
| US7214884B2 (en) | 2003-10-31 | 2007-05-08 | Adc Incorporated | Cable with offset filler |
| US7064277B1 (en) | 2004-12-16 | 2006-06-20 | General Cable Technology Corporation | Reduced alien crosstalk electrical cable |
| US7317163B2 (en) * | 2004-12-16 | 2008-01-08 | General Cable Technology Corp. | Reduced alien crosstalk electrical cable with filler element |
| US7238885B2 (en) * | 2004-12-16 | 2007-07-03 | Panduit Corp. | Reduced alien crosstalk electrical cable with filler element |
| US7157644B2 (en) | 2004-12-16 | 2007-01-02 | General Cable Technology Corporation | Reduced alien crosstalk electrical cable with filler element |
| US7205479B2 (en) * | 2005-02-14 | 2007-04-17 | Panduit Corp. | Enhanced communication cable systems and methods |
| US7259993B2 (en) * | 2005-06-03 | 2007-08-21 | Infineon Technologies Ag | Reference scheme for a non-volatile semiconductor memory device |
| SE529502C2 (en) * | 2005-08-02 | 2007-08-28 | Supachai Molander | Procedure for producing a lead as well as lead produced by the process |
| US7271344B1 (en) * | 2006-03-09 | 2007-09-18 | Adc Telecommunications, Inc. | Multi-pair cable with channeled jackets |
| US7375284B2 (en) * | 2006-06-21 | 2008-05-20 | Adc Telecommunications, Inc. | Multi-pair cable with varying lay length |
| US7411131B2 (en) * | 2006-06-22 | 2008-08-12 | Adc Telecommunications, Inc. | Twisted pairs cable with shielding arrangement |
| US7525041B2 (en) * | 2006-09-21 | 2009-04-28 | General Electric Company | Method and apparatus for resonance frequency response attenuation |
| WO2009009747A1 (en) * | 2007-07-12 | 2009-01-15 | Adc Telecommunications, Inc. | Telecommunication wire with low dielectric constant insulator |
| US7982132B2 (en) * | 2008-03-19 | 2011-07-19 | Commscope, Inc. Of North Carolina | Reduced size in twisted pair cabling |
| US9418775B2 (en) | 2008-03-19 | 2016-08-16 | Commscope, Inc. Of North Carolina | Separator tape for twisted pair in LAN cable |
| US9978480B2 (en) | 2008-03-19 | 2018-05-22 | Commscope, Inc. Of North Carolina | Separator tape for twisted pair in LAN cable |
| WO2010002720A1 (en) * | 2008-07-03 | 2010-01-07 | Adc Telecommunications, Inc. | Telecommunications wire having a channeled dielectric insulator and methods for manufacturing the same |
| US8344255B2 (en) * | 2009-01-16 | 2013-01-01 | Adc Telecommunications, Inc. | Cable with jacket including a spacer |
| US10839981B2 (en) | 2011-04-07 | 2020-11-17 | 3M Innovative Properties Company | High speed transmission cable |
| CN203631172U (en) | 2011-04-07 | 2014-06-04 | 3M创新有限公司 | High speed transmission cable |
| US20140060882A1 (en) * | 2012-08-31 | 2014-03-06 | Tyco Electronics Corporation | Communication cable having at least one insulated conductor |
| FR3011670A1 (en) * | 2013-10-09 | 2015-04-10 | Labinal | ELECTRIC HARNESS WITH LOW LINEAR CAPACITY |
| US9293239B2 (en) * | 2013-12-24 | 2016-03-22 | Belden Inc. | Semi-solid balanced audio cable |
| US9748022B2 (en) | 2013-12-24 | 2017-08-29 | Belden Inc. | Semi-solid balanced audio cable |
| WO2017084835A1 (en) * | 2015-11-17 | 2017-05-26 | Leoni Kabel Gmbh | Data cable for high-speed data transmissions |
| US10472742B1 (en) * | 2016-02-17 | 2019-11-12 | Apple Inc. | Fabric-based items with fusible insulating strands |
| US9922751B2 (en) * | 2016-04-01 | 2018-03-20 | Intel Corporation | Helically insulated twinax cable systems and methods |
| DE102018103607B4 (en) * | 2018-02-19 | 2023-12-07 | Bizlink Industry Germany Gmbh | Two-wire cable with nested insulation, and method and device for producing a two-wire cable |
| WO2019208401A1 (en) * | 2018-04-25 | 2019-10-31 | ダイキン工業株式会社 | Stranded wire and method of manufacture therefor |
| US10754486B2 (en) * | 2018-05-16 | 2020-08-25 | Sanko Tekstil Isletmeleri San. Ve Tic. A.S. | Composite yarn for the position sensitive capacitive touch sensing |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE599312C (en) * | 1930-11-06 | 1934-07-30 | Siemens Schuckertwerke Akt Ges | Process for the production of air-insulated twin cores for telecommunication cables |
| NL48345C (en) * | 1934-07-17 | |||
| US2118907A (en) * | 1935-07-02 | 1938-05-31 | Felten & Guilleaume Carlswerk | Multicore high frequency conductor |
| FR810882A (en) * | 1935-08-12 | 1937-04-01 | Lignes Telegraph Telephon | Air insulated high frequency conductor |
| FR815143A (en) * | 1935-12-18 | 1937-07-06 | Lignes Telegraph Telephon | Insulating cord |
| US2348752A (en) * | 1940-09-17 | 1944-05-16 | Int Standard Electric Corp | Electric cable |
| GB570349A (en) * | 1943-10-27 | 1945-07-03 | Communications Patents Ltd | Improved coaxial electric cable and systems comprising such cable |
| US2614172A (en) * | 1948-06-12 | 1952-10-14 | Anaconda Wire & Cable Co | High impedance shielded twin conductor cable |
| DE2104600C3 (en) * | 1971-02-01 | 1973-09-13 | Max-Planck-Gesellschaft Zur Foerderung Der Wissenschaften E.V., 3400 Goettingen | Electrical conductor for superconducting windings or switching sections, and method for producing such a conductor |
| DE3216233A1 (en) * | 1982-04-30 | 1983-11-03 | Siemens AG, 1000 Berlin und 8000 München | LIGHTWAVE LEAD CABLE WITH A LAYER COVER |
| US4767890A (en) * | 1986-11-17 | 1988-08-30 | Magnan David L | High fidelity audio cable |
-
1990
- 1990-11-14 FR FR9014171A patent/FR2669143B1/en not_active Expired - Fee Related
-
1991
- 1991-11-11 EP EP91119172A patent/EP0485920B1/en not_active Expired - Lifetime
- 1991-11-11 DE DE69111750T patent/DE69111750T2/en not_active Expired - Fee Related
- 1991-11-13 US US07/791,234 patent/US5286923A/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| US5286923A (en) | 1994-02-15 |
| EP0485920A1 (en) | 1992-05-20 |
| DE69111750T2 (en) | 1996-01-04 |
| FR2669143A1 (en) | 1992-05-15 |
| FR2669143B1 (en) | 1995-02-10 |
| DE69111750D1 (en) | 1995-09-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0485920B1 (en) | Electrical cable with high propagation velocity | |
| EP0649181B1 (en) | Antenna for portable radio apparatus, method for manufacturing the same and portable radio apparatus comprising the same | |
| EP0375506B1 (en) | Semi-rigid cable for microwave transmission | |
| EP0763831B1 (en) | Multi-pairs cable, shielded by pair and easy to connect | |
| EP0554160B1 (en) | High frequency electrical cable | |
| EP0803878B1 (en) | Process and device for manufacturing an aerated casing made of insulating material around a conductor, and cable with such a casing | |
| FR2470392A1 (en) | OPTICAL FIBER CABLES, PARTICULARLY FOR SUBSEA TRANSMISSION SYSTEMS | |
| EP0003104B1 (en) | Electric coaxial cable | |
| CH694877A5 (en) | Filling element of an embedded cable shield and with cable conduit containing it. | |
| FR2693828A1 (en) | Signal cable with a metal-coated polymer screen. | |
| EP0643399A1 (en) | High frequency transmission cable | |
| FR2522438A1 (en) | ELECTRIC CABLE FOR USE IN OIL WELLS | |
| EP0504776A1 (en) | Low loss coaxial cable | |
| EP0942440A1 (en) | Low-crosstalk flexible cable | |
| FR2491220A1 (en) | OPTICAL CABLE COMPRISING AT LEAST ONE ELEMENT COMPRISING AT LEAST ONE OPTICAL FIBER COATED IN A SHEATH OF PLASTIC MATERIAL, THE ELEMENT OR SET OF ELEMENTS BEING MAINTAINED WITHIN A METAL PROTECTIVE TUBE | |
| EP0920035A1 (en) | Data transmission cable | |
| FR2693024A1 (en) | Mixed cable for data transmission and energy transmission. | |
| EP0034800A1 (en) | Prospecting cable | |
| EP0599672B1 (en) | High frequency signal transmission cable | |
| EP1016165B1 (en) | Radiating cable | |
| FR2735606A1 (en) | Coaxial cable for ultrasound and medical usage | |
| EP1177562B1 (en) | Use of a cable as low pass cable | |
| FR2809498A1 (en) | High voltage line upper position placed fibre optic cable having center with helix groove containing flexible tubes/fibre optic sections and flexible material | |
| CN213844842U (en) | Water-blocking cable | |
| WO2000057431A1 (en) | Radiating cable |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): DE FR GB |
|
| 17P | Request for examination filed |
Effective date: 19921117 |
|
| 17Q | First examination report despatched |
Effective date: 19940614 |
|
| GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
| AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): DE FR GB |
|
| REF | Corresponds to: |
Ref document number: 69111750 Country of ref document: DE Date of ref document: 19950907 |
|
| GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 19951024 |
|
| PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
| 26N | No opposition filed | ||
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 19991012 Year of fee payment: 9 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 19991025 Year of fee payment: 9 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 19991027 Year of fee payment: 9 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20001111 |
|
| GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20001111 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20010731 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20010801 |
|
| REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST |