Abstract: A cabling media includes a plurality of twisted wire pairs housed inside a jacket. Each of the twisted wire pairs has a respective twist length, defined as a distance wherein the wires of the twisted wire pair twist about each other one complete revolution. At least one of the respective twist lengths purposefully varies along a length of the cabling media. In one embodiment, the cabling media includes four twisted wire pairs, with each twisted wire pair having its twist length purposefully varying along the length of the cabling media. Further, the twisted wire pairs may have a core strand length, defined as a distance wherein the twisted wire pairs twist about each other one complete revolution. In a further embodiment, the core strand length is purposefully varied along the length of the cabling media. The cabling media can be designed to meet the requirements of CAT 5, CAT 5e or CAT 6 cabling, and demonstrates low alien and internal crosstalk characteristics even at data bit rates of 10 Gbit/sec.

Abstract: A cable includes a plurality of twisted pairs of conductors in a dense hexagonal matrix-like form defining thereof horizontal rows and oblique columns with each other in a rectangular coordinate system wherein the twisted pairs in the same row have the same twist direction while having opposite twist directions with those in the two neighboring rows aside, and wherein for each row there is a ninety degrees phase shift between every adjacent two pairs and for each column there is a non-ninety degrees phase shift between every adjacent two pairs.

Abstract: A cable includes a plurality of twisted pairs of conductors in a dense matrix form defining columns and rows thereof in a rectangular coordinate system wherein the twisted pairs in the same row have the same twist direction while have opposite twist directions with those in the two neighboring rows aside, and wherein for each row there is a ninety degrees phase shift between every adjacent two pairs and for each column there is a ninety degrees phase shift between every adjacent two pairs.

Abstract: The present invention includes a twisted pair cable having a plurality of pairs, wherein each has two conductors. Each of the conductors is covered with an inner layer insulator and an outer layer insulator, wherein the positioning of the conductors within the inner and outer insulators is eccentric with respect to the inner and outer insulators. This invention also includes a method of making a cable of the same configuration.

Abstract: The radiating cable comprises at least one cable segment (1) comprising a pair of insulated conductor wires (2) having first ends (3) connected to a load (4) equal to an impedance characteristic of the insulated conductor wires, and second ends (5) connected to a connector (6).

Abstract: The audio cable is having a multi-conductor cable, two or more conductor assemblies, at least one partition for creating additional mechanical resonances, and appropriate connectors, coverings, insulation and labels each of which features selected mechanical resonances. The partitions can be a hinge partition produced from selectively twisting the conductor assemblies, or a mass partition produced by fastening either a wire binding wound over the conductor assembly or a conductor of different mass from that of the conductor assembly and thereto. The audio cable resonances are adjusted by dividing the conductor assembly into multiple partitions. The length, mass, color and compliance of each partition are adjustable to produce resulting mechanical resonances, thereby determining the sound of the audio cable when used with microphonic or vibrationally-sensitive electronics.

Abstract: A bus having improved performance over prior art busses is provided. In one embodiment, the bus includes a first wire having a plurality of intervals, a second wire having a plurality of intervals, and a third wire having a plurality of intervals. The first, second, and third wires are intertwined with each other. Some intervals of the wires include a buffer and some other intervals of the wires include an inverter. In some embodiments, the intervals of the wires that include the buffer are middle wires and in other embodiments, the intervals of the wires the include the buffer are outer wires.

Abstract: A cable includes a plurality of twisted pairs of conductors in a dense matrix form defining columns and rows thereof in a rectangular coordinate system wherein the twisted pairs in the same row have the same twist direction while have opposite twist directions with those in the two neighboring rows aside, and wherein for each row there is a ninety degrees phase shift between every adjacent two pairs and for each column there is a ninety degrees phase shift between every adjacent two pairs.

Abstract: A cable includes a plurality of twisted pairs of conductors in a dense hexagonal matrix-like form defining thereof horizontal rows and oblique columns with each other in a rectangular coordinate system wherein the twisted pairs in the same row have the same twist direction while have opposite twist directions with those in the two neighboring rows aside, and wherein for each row there is a ninety degrees phase shift between every adjacent two pairs and for each column there is a non-ninety degrees phase shift between every adjacent two pairs.

Abstract: An electrical interconnect is provided with two or more conductors and a conductor support structure, such as a tube, wherein the tube wall includes conductor support sites distributed along the wall. The conductors extend along the wall and across the tube and are maintained in a spaced relationship with respect to one another by the wall and the conductor support sites, which can be perforations through the tube wall, the conductors being inserted through the perforations. The conductor support sites for each conductor can be orthogonally disposed with respect to the sites for other conductors, allowing the conductors to be maintained in a generally helical relationship and each conductor can form a square-wave or trapezoidal-wave pattern along the tube. The interconnect can include cladding about the conductors and tube, such as a ribbed jacket and braided wire shield, and the conductor support structure may be provided with ribbing.

Abstract: A flat cable having parallel portions provided alternately with twisted pair portions in the longitudinal direction of the flat cable, wherein the parallel portions include a plurality of insulated core wires aligned parallel to each other and fused to each other. The twisted pair portions include twisted pairs each having two separately insulated core wires twisted together,wherein a plurality of the twisted pair portions in their surface, backside, and left and right side faces are surrounded and laminated by at least one pressure-sensitive adhesive tape, thermally fusible tape, pressure-sensitive adhesive shield tape, or thermally fusible shield tape.

Abstract: A cable assembly has a central core element with a central conductor surrounded by an insulating core sheath having a uniform wall thickness. A plurality of twisted pairs of wires surround the core element, abutting each other and the core to form a tube concentric with an axis defined by the center of the core, a conductive shield layer surrounds the twisted pairs and is uniformly spaced apart therefrom.

Abstract: A system for transmitting electrical signals between a computer and peripherals along a twisted pair cable. The system includes a computer interface, a peripheral interface and a twisted pair cable in communication between the computer interface and the peripheral interface. Video and audio signals from the computer are transmitted via the twisted pair cable to the peripherals. Peripheral signals can also be communicated between the computer and peripherals via the twisted pair cable.

Abstract: A cabling media which is suitable for high performance data transmission includes a plurality of insulated metallic conductor-pairs, each pair including two plastic insulated metallic conductors which are twisted together. More specifically, the introduction of a periodic rotation along the length of each insulated conductor essentially acts to cancel out a large number of the adverse effects which may result due to a lack of conductor concentricity and/or dielectric eccentricity.

Abstract: An electrical interconnect is provided with two or more conductors and a conductor support structure, such as a tube, wherein the tube wall includes conductor support sites distributed along the wall. The conductors extend along the wall and across the tube and are maintained in a spaced relationship with respect to one another by the wall and the conductor support sites, which can be perforations through the tube wall, the conductors being inserted through the perforations. The conductor support sites for each conductor can be orthogonally disposed with respect to the sites for other conductors, allowing the conductors to be maintained in a generally helical relationship and each conductor can form a square-wave or trapezoidal-wave pattern along the tube. The interconnect can include cladding about the conductors and tube, such as a ribbed jacket and braided wire shield, and the conductor support structure may be provided with ribbing.

Abstract: A differential pair arrangement includes two mutually intersecting differential pairs of conductors wherein each pair may perform as both aggressor and victim. The crosstalk imposed on the victim conductor by the pair of aggressor differential pair is substantially zero at any moment and any section. Therefore, there is no crosstalk accumulated along the longitudinal direction of the conductors, and thus the far-end or the near-end crosstalk is substantially zero.

Abstract: A local area network cable capable of high speed signal transmission has a plurality of twisted pairs of conductors enclosed within a jacket. Each of the twisted pairs has a different twist frequency than any of the other pairs, and at least one of the pairs has a direction of twist that is different from the other twisted pairs, that is, it may have a right hand twist where the other pairs have a left hand twist. In a four pair cable, two of the pairs, of different twist frequency, have imparted thereto a right hand twist, and two of the pairs have a left hand twist.

Abstract: A wiring apparatus for reducing electromagnetic interference between conductive wires is provided. Wire pairs are incorporated into rigid or flexible printed circuits to precisely control loop alignment and phase differences. This precise alignment helps to cancel radiated electromagnetic fields and reduce voltage polarities induced in nearby wires. In one embodiment, a pair of parallel wires is aligned parallel to a second, twisted pair of wires. In another embodiment, two twisted pairs of wires, with identical loop lengths, are aligned parallel to each other and offset by exactly one half loop length. In a third embodiment, two twisted pairs of wires are aligned parallel to each other, in which one pair has a loop length that is an integer ratio of the other pair.

Abstract: A method and apparatus (10) for making an electrical distribution conductor (12) is performed by heating an electrically conductive uninsulated wire (14) to a predetermined temperature that is at least approximately as hot as the melting temperature of a thermoplastic member (15) and by then forcing the heated wire into the thermoplastic member to provide insulated mounting of the wire for providing an electrical conductor between spaced locations. The wire (14) is engaged with a pair of spaced rotary electrodes (20, 22) to pass an electric current through the wire to provide its heating. The wire (14) can be either fully or partially embedded within the thermoplastic member (15) and can have either electrically connected or insulated junctions with another crossing wire.

Abstract: A method and apparatus for adjusting the coupling reactances between twisted pairs contained within a data communications cable is disclosed. An isolation element is used to isolate one or more twisted pairs of wires from the other twisted pairs of wires contained within the data communications cable. The isolation element may be constructed of dielectric, conductive, or ferromagnetic materials or a combination thereof. It may also include various shapes, patterns, and/or windows for creating a specified level of crosstalk among the twisted pairs contained within the cable.

Abstract: An electrical cable includes a second strand, and a third strand braided together. The first and second strands are electrically conductive and electrically insulated from each other, and the third strand is electrically non-conductive. The geometry imparted to the conductive strands by the braided configuration results in the cable exhibiting improved noise rejection, lower inductance per unit length, reduced signal attenuation and reduced resistance compared with cables having twisted or parallel pairs of conductive strands. The cable is particularly suited to audio, video and computer applications. Cables that have larger numbers of strands braided together, and multilayer cables are also described.

Abstract: There is provided a twisted-pair cable having a good anti-voice leak quality and handling facility, and a method of making the twisted-pair cable. Thus, the end-conditioning process of such a cable is rendered easier, and the cable can be produced at a lower cost. The twisted-pair cable includes a pair of twisted-pair core wires respectively including a pair of insulated core wires, each of which has an electrical conductor and an insulator layer coated thereon. The twisted-pair cable further includes a core cable assembly formed by twisting a pair of unitary core wire complexes, each of which is formed by twisting the pair of twisted-pair core wires.

Abstract: A twisted-pair cable includes a plurality of twisted pairs of conductors closely side by side arranged one another. The pair of conductors are twisted with some degrees axially offset relative to the adjacent twisted pair of conductors, whereby for each victim conductor, the induced signals can be eliminated within each twisted cycle, so that the crosstalk at the far end of the cable can be reduced.

Abstract: A method of reducing or eliminating skew between signals of first and second conductors of a data cable by transferring the signal of the first conductor to the second conductor at a position intermediate the ends of the data cable and transferring the signal of the second conductor to the first conductor at a position intermediate the ends of the data cable. The transferring of the signals in such that, in traveling the length of the cable, any one of the signals travels partly on the first conductor and partly on the second conductor. The first and second conductors are a twisted pair of first conductors and a twisted pair of second conductors.

Abstract: A communication cable is provided that satisfies the requirement of Cat.6 for near-end cross talk wherein the difference between the maximum and minimum values of delay time among the four twisted wire pairs constituting the cable is within 25 ns/100 m. The communication cable is made by entwining four twisted wire pairs (T1), (T2), (T3), (T4) made by twisting pairs of insulated wires made by covering electrically conductive wires by polyolefin thermoplastic resin with each pair being twisted with a twist pitch different from the others (pitch: P1<P2<P3<P4) and the inter-pair interposer (6) made of polyolefin thermoplastic resin, while being entwined with each wire pair, around a central interposer (2) made of polyolefin thermoplastic resin having cross sectional area of S1. Cross sectional area S1 of the central interposer (2) satisfies the relationship of inequality S1≧[{4.1 d/(1+{square root over (2)})}·0.

Abstract: A local area network cable capable of high speed signal transmission has a plurality of twisted pairs of conductors enclosed within a jacket. Each of the twisted pairs has a different twist frequency than any of the other pairs, and at least one of the pairs has a direction of twist that is different from the other twisted pairs, that is, it may have a right hand twist where the other pairs have a left hand twist. In a four pair cable, two of the pairs, of different twist frequency, have imparted thereto a right hand twist, and two of the pairs have a left hand twist.

Abstract: An electrical connector has a connector body with a cable cavity at its cable connection end and a strain relief coupled to the connector body adjacent the cable connection end. The strain relief extends into the cable cavity. A wire spacer is mounted in the cable cavity adjacent to strain relief. This spacer has a central core and four radially outwardly projecting flanges. The flanges are angular spaced from one another by angles of substantially 90 degrees. The spacer maintains separation of twisted wired pairs in a cable which is secured to the connector by the strain relief to enhance the electrical performance of the connector.

Abstract: An improved cable for audio applications having multiple, interlaced, counter-rotating conductors in a twin helical pattern is disclosed. Preferred embodiments of the present invention include a first set of conductors configured into longitudinally offset, co-axial helices along with a second set of conductors configured into a substantially parallel group of longitudinally offset, co-axial helices which are interlaced with said first set of conductors such that, with each rotation of said helices, a conductor from the first set of helices overlaps and interlaces with a conductor from the second set of helices. The first and second sets of helices rotate in opposite directions to achieve proper interlacing engagement.

Abstract: A cable assembly having of a first pair of conductors and a second pair of conductors is presented that provides high common mode rejection. The cable assembly may be implemented in either a single channel configuration where two of the four wires are electrically connected with the positive terminal while the remaining two conductors are inner connected with the negative terminal. A dual channel configuration is also presented and provides high common mode rejection due to the orthogonal nature of the braiding pattern of the individual conductors.

Abstract: In a flat cable including fused portions and twisted pair portions, the length of the twisted pair portions being not constant, the twist pitch of the twisted pair portions being substantially constant independently of the length of the twisted pair portions, some of the twisted pair portions being constituted by S twists with the other twisted pair portions being constituted by Z twists, the next twisted pair portion is twisted in such a manner that, when the number of twists in the S twisted pair portions in the longitudinal direction of the flat cable is added as “plus (+)” value with the number of twists in the Z twisted pair portions being added as “minus (−)” value, the twist sense in the next twisted pair portion is Z twist sense if the integrated value of the number of twists is plus (+) while the twist sense in the next twisted pair portion is S twist sense if the integrated value of the number of twists is minus (−).

Abstract: The present invention is a method and apparatus of routing a 1 of 4 signal to reduce the effective signal coupling between the signal wires. The present invention is a wire pack with a first, second, third, and fourth wire for routing a 1 of 4 signal in a semiconductor device. While routing the wires of the wire pack, the present invention rotates the route of each individual wire to reduce the signal coupling between the wires. Additionally, an isolation barrier borders the outside of the wire pack to further reduce the signal coupling. The rotation of the wires allow each individual wire to be adjacent to each other wire for ½ of the wire's route.

Abstract: An apparatus is provided comprising a first twisting device that dispenses a first wire and imparts a twist to the same, a second twisting device that receives the twisted first wire and twists the same about a second wire, and a metering device or capstan positioned on the outside of the second twisting device that controls the input velocity of the first and second wires. The apparatus can further include a third twisting device that dispenses a second wire and imparts a twist to the same. In a preferred embodiment of the present invention, the first and second wires are back-twisted and the second twisting device receives the first and second back-twisted wires and twins or pairs the same. A tension transducer is also provided which measures the tension of the wires before they enter the second twisting device.

Abstract: A method of constructing twisted pair cables having an average impedance of no less than 97.5.OMEGA. and no more than 102.5.OMEGA. is disclosed. The longest lay length pair is used as a base reference and the construction of each additional twisted pair is altered to better match the averaged impedance. Specifically, the insulated conductor thickness T.sub.i of each twisted pair is adjusted, dependent upon the configuration of the base pair.

Abstract: An electrical connector has a connector body with a cable cavity at its cable connection end and a strain relief coupled to the connector body adjacent the cable connection end. The strain relief extends into the cable cavity. A wire spacer is mounted in the cable cavity adjacent to strain relief. This spacer has a central core and four radially outwardly projecting flanges. The flanges are angular spaced from one another by angles of substantially 90 degrees. The spacer maintains separation of twisted wired pairs in a cable which is secured to the connector by the strain relief to enhance the electrical performance of the connector.

Abstract: An improved twisted-pair interconnect includes a first conductor and second conductor. Over the first half of the interconnect the first conductor is uninsulated and the second conductor is insulated. Over the second half of the interconnect the first conductor is insulated and the second conductor is uninsulated. An insulation barrier is provided at the midpoint of the interconnect to prevent shorting. In a further improvement, the twisted-pair cable is constructed from an insulated and an uninsulated conductor which are twisted together, severed at a midpoint, and reconnected with the conductors swapped, causing each conductor to be half-insulated and both conductors to have the same length. To reduce electromagnetic coupling and preventing external contact with the uninsulated conductors, the twisted-pair can be enclosed by flexible straight or grooved gas-filled tubing.

Abstract: A subsea control cable includes an outer sheath and cables, conduits etc. arranged inside the sheath, and also at least one weight element. The weight element includes at least one strength member extending continuously along the entire length of the control cable, to which strength member there is attached a weight element or elements. The weight of the weight element in relation to the diameter of the control cable varies along the length of the control cable, e.g., from a predetermined minimum weight/diameter ratio, where the weight element consists only of the strength element, to a predetermined maximum weight/diameter ratio, where the cross-section of the control cable is filled to the maximum with the weight member.

Abstract: A cabling media which is suitable for data transmission with relatively low crosstalk includes a plurality of metallic conductors-pairs, each pair including two plastic insulated metallic conductors which are twisted together. The characterization of the twisting is important and relates to parameters such as twist length as well as core strand length/lay. More specifically, particular combinations of twist lengths and core strand length/lay are purposely selected for each insulated pair of the cable in order to achieve performance capabilities that significantly surpass those required under TIA/EIA-568A. In one particular embodiment of this invention, a cable comprises as its transmission media, four twisted pair of individually insulated conductors with each of the insulated conductors including a metallic conductor and an insulation cover which encloses the metallic conductor.

Abstract: A high speed telecommunication cable includes at least two soft supports, such as a flame retardant polypropylene material, each having a plurality of embedded twisted pair conductors disposed therein and a plurality of wrapped twisted pair conductors disposed about the periphery thereof.

Abstract: Uniformly spaced insulating buttons support two signal conductors within a tubular cable. The signal conductors are twisted from 180 to 360 degrees and are in physical contact with each other at their crossing point between each pair of buttons. Between each pair of buttons one of the conductors is covered with an insulating sleeve. The insulating sleeve alternates from one conductor to the other over the length of the cable. The conductors and buttons are enclosed within an insulating and supporting tubing. The supporting tubing is reduced in diameter or has corrugations to provide flexibility between each pair of insulating buttons. An overall shield composed of wires or foil is woven or helically wrapped to form a straight tube that surrounds the supporting tubing. The overall shield is electrically connected to system ground at the source end, allowing current flow only in the signal conductors.

Abstract: Two insulated signal conductors are wrapped in a double-helix fashion around a substantially straight third insulated ground conductor to form an interconnect. The first signal conductor is wrapped in a clockwise direction around the ground conductor. The second signal conductor is wrapped in a counter-clockwise direction around the ground conductor and first signal conductor, creating a spaced twisted-pair of the two signal conductors. The wrap frequency of the second conductor is lower than the wrap frequency of the first conductor. The difference in wrap frequencies of the first and second conductors is controlled such that the lengths of the first and second conductors are equal regardless of the length of the ground conductor. The wrap frequencies of the first and second signal conductors around the ground conductor are also chosen such that their intersections will be substantially orthogonal.

Abstract: A pre-twisted cable pair and a method for processing such pairs into an electrical cable having improved electrical and mechanical properties is disclosed. At least one insulated wire for transmitting electrical signals is pre-twisted prior to pairing with another insulated wire. As the pre-twisted wires are paired by a conventional double-twist machine which imparts back-twist, the detrimental electrical effects caused by irregularities in the individual wires are cycled over a very short distance, resulting in a cable pair having lower structural return loss, near-end crosstalk, and insertion loss than wires paired without any pre-twist. These pre-twisted wires may be united into a jacketed electrical cable by a continuous-extrusion jacketing process in which an optimal dielectric constant is maintained around each individual cable pair.

Abstract: A patch high-speed cable for LAN applications having a jacket surrounding at least two twisted-pair insulated cables. Each of the twisted-pair cables have at least one tin sealed stranded tinned metal conductor. The tin sealed stranded tinned metal conductor has 7 or 19 tinned metal strands and a size of 24 or 26 AWG. Each of the tinned metal strands has a tin coating of 20 to 90 micro-inches. The insulation on the metal conductor has a thickness of about 0.007 to about 0.011 inches and a dielectric constant of about 2.2-2.5 and a dissipation factor of 0.0001 to 0.001. The twisted pair cable has an attenuation dB/100 ft. increase of less than 1.0 and preferably less than 0.5 when subjected, as an unterminated twisted pair cable over a 35 day period, to 100 MHz per 100 ft. and ambient air having a humidity of 40 to 80%.

Abstract: A wire spacing device for protecting a signal line from the interference of a strong electromagnetic field from a power line by keeping the signal line separate from the power line by a predetermined distance includes a center bar extending in first and second hooks provided on each end of the center bar. Each of the first and second hooks is formed by an elastic material in a C-shape configuration having a gap smaller than the diameter of any of the first and second wires. When either one of the first and second wires is pressed in the gap, the hook resiliently opens the gap and passes the wire therein, and then the hook resiliently returns to the original position to hold the passed wire therein.

Abstract: A communication cable includes a plurality of strands that are interconnected by cross pieces which can be easily separated from each other such that each strand can be used as independent cables. At least one strand of the communication cable includes at least one electrical communication line and at least one optical communication line.

Abstract: A high-speed data communications cable has concentric groupings of twisted pair wires. A first grouping is formed about a filler and enclosed within a thermoplastic jacket. A secondary grouping is formed in a single layer about the thermoplastic jacket of the first grouping. A third grouping may be formed about the jacket of the second grouping. Secondary fillers are used with the twisted pair wires for placement control. A minimal number of lay lengths is used in each grouping.

Abstract: A high speed telecommunication cable includes at least one filler member having a plurality of twisted pair conductors disposed about the periphery thereof. Preferably, a plurality of twisted pair conductors are helically wound about each of two filler members and form a single layer about each filler member.

Abstract: A radio frequency electrical connection between a pair of electrical devices (101, 104) is formed by a pair of bond wires (102, 103) crossing (401) each other.

Abstract: Cell (19) for measuring moisture content of a material, comprising a sock (13) which is comprised of a plurality of braided threads, each thread consisting of a plurality of fibers comprised of an electrically non-conductive material. The sock is perfused with a moisture absorbing fluid. The sock comprises at least two electrodes (15, 17) in the form of wires comprised of a conducting material. These electrodes are braided as longitudinal threads in the sock (13). The electrodes are spaced from each other and extend essentially parallel to each other, the sock (13) being braided around a cylindrical core (11) comprised of an electrically non-conducting material. The axis of the core is essentially parallel to the electrodes (15, 17) and the threads in the sock (13) are permanently under tension to achieve contact between the threads and the electrodes (15, 17).

Abstract: A sensor cable for detecting the presence of electrically conductive liquids, e.g. water. The cable has decreased sensitivity to contamination and condensation than conventional cables which are covered by braids. First and second elongate conductors are positioned in first and second channels which partially surround the conductor and are part of first and second insulating support members; each channel has at least one shoulder which extends outwardly from the channel beyond the conductor. The channels are positioned so that when the cable is placed on a flat substrate in any position, neither the first nor the second conductor contacts the flat surface and at least one first shoulder and at least one second shoulder make intermittent contact with the flat surface. In a preferred embodiment, the first and second conductors follow a generally spiral path down the length of the cable.

Abstract: An improved fence construction includes an elongated plastic strip with the edges of the strip folded over parallel wires. The wires may be electrified. The plastic strip may be coded, decorated or laminated with other materials to provide an improved fence material for use in combination with fence posts to provide the appearance of a multirail fence, for example.