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1. 发明授权

US4128736A Cable design with limited color coding 失效
标题翻译：电缆设计，颜色编码有限
公开(公告)号：US4128736A
公开(公告)日：1978-12-05
申请号：US782722
申请日：1977-03-30
申请人： Wendell G. Nutt , Mark E. Roach
发明人： Wendell G. Nutt , Mark E. Roach
IPC分类号： H01B7/36 , H01B11/02
CPC分类号： H01B11/02 , H01B7/361
摘要： While randomized splicing of twisted conductor pairs within groups in pulp cables is generally desirable to avoid electrical degradation resulting from systematic additions of capacitance unbalances, restoration of such cables, when severed, requires identification of each conductor pair for splicing. A cable design with a restoration color code has been developed which features groups having a manageable number of conductor pairs for identification splicing. Each group comprises several conductor pairs which have unique color combinations and which are precisely arranged in the group so the remaining conductor pairs having repeating color combinations can be identified by position relative to the uniquely colored pairs.
摘要翻译：虽然在纸浆电缆组内的绞合导体对的随机拼接通常是期望的，以避免由于系统地增加电容不平衡导致的电气劣化，这种电缆的恢复，当切断时，需要识别用于拼接的每个导体对。已经开发了具有恢复颜色代码的电缆设计，其具有可管理数量的用于识别拼接的导体对的组。每个组包括具有独特颜色组合的几个导体对，并且精确地布置在组中，使得具有重复颜色组合的剩余导体对可以通过相对于唯一有色对的位置来识别。

2. 发明授权

US5187329A Twisted pairs of insulated metallic conductors for transmitting high frequency signals 失效
标题翻译：用于发送高频信号的绝缘金属导体的双绞线
公开(公告)号：US5187329A
公开(公告)日：1993-02-16
申请号：US722786
申请日：1991-06-28
申请人： Larry L. Bleich , Wendell G. Nutt , Stephen T. Zerbs
发明人： Larry L. Bleich , Wendell G. Nutt , Stephen T. Zerbs
IPC分类号： H01B7/36 , H01B11/00 , H01B11/02 , H01B13/00 , H01B13/02 , H01B13/34
CPC分类号： H01B13/0285 , H01B11/002 , H01B13/345 , H01B7/361
摘要： Methods and apparatus are provided for providing an electrically matched pair (20) of insulated metallic conductors (21,21). Insulation is applied to successive portions of a length of wire-like metallic conductor (22) after which a colorant material (37) is applied to the surface of a plastic insulation material of a first portion of the length of the metallic conductor which is being moved along a path of travel. Facilities are provided for shielding a supply of the colorant material from the moving insulated metalic conductor and for then exposing a second portion of the length of the insulated metallic conductor to a different colorant material. The insulation and the colorant materials and their disposition with respect to the insulation are such that the dielectric constant of one insulated metallic conductor of the pair is substantially equal to that of the other. The first and second portions of the length of the insulated metallic conductor are separated from each other and are twisted together to provide an electrically matched pair.

3. 发明授权

US5113159A Communications transmission system including facilities for suppressing electromagnetic interference 失效
标题翻译：通信传输系统，包括用于抑制电磁干扰的设备
公开(公告)号：US5113159A
公开(公告)日：1992-05-12
申请号：US483152
申请日：1990-02-22
申请人： Luc W. Adriaenssens , Harold W. Friesen , Wendell G. Nutt , Kenneth B. Parks
发明人： Luc W. Adriaenssens , Harold W. Friesen , Wendell G. Nutt , Kenneth B. Parks
IPC分类号： H01B11/06 , H04B15/00 , H04B15/02 , H04L25/02 , H05K9/00
CPC分类号： H04B15/02 , H01B11/06
摘要： A balanced mode transmission system (20) for use in a local area network includes at least one twisted pair of insulated metallic conductors (27--27) which at its end is connected through a transformer to a transmitting computer and to a receiving computer (48). Each pair of conductors adjacent to the transmitting end and optionally adjacent to the receiving end is provided with a longitudinal choke (56,57). Also, a longitudinally extending metallic wire (60) is included in the system and is connected possibly through a resistor to ground at each end. The combination of the longitudinal choke at least adjacent to the transmitting end and the longitudinally extending metallic wire is superbly effective in suppressing electromagnetic interference notwithstanding the absence of shielding.

4. 发明授权

US4873393A Local area network cabling arrangement 失效
标题翻译：局域网布线布置
公开(公告)号：US4873393A
公开(公告)日：1989-10-10
申请号：US170500
申请日：1988-03-21
申请人： Harold W. Friesen , Wendell G. Nutt
发明人： Harold W. Friesen , Wendell G. Nutt
IPC分类号： H01B11/04 , H01B11/02 , H04L12/28
CPC分类号： H04L12/28 , H01B11/02
摘要： A cable (20) which is particularly suited to the transmission of substantially error-free data at relatively high rates over relatively long distances includes at least two pairs of individually insulated conductors (42--42). The pairs of individually insulated conductors are enclosed in a tubular member (51) comprising a plastic material. A metallic shield (54) may or may not enclose the tubular member, and in a preferred embodiment, a plastic jacket (58) is provided. The twist length of each pair of insulated conductors does not exceed a value equal to the product of about forty and the outer diameter of the plastic insulation. Further, the twist lengths among the conductor pairs are varied in accordance with a twist frequency scheme modulated by non-uniform increments of twist frequency.

5. 发明授权

US4697051A Data transmission system 失效
标题翻译：数据传输系统
公开(公告)号：US4697051A
公开(公告)日：1987-09-29
申请号：US760867
申请日：1985-07-31
申请人： Richard D. Beggs , Harold W. Friesen , Wendell G. Nutt
发明人： Richard D. Beggs , Harold W. Friesen , Wendell G. Nutt
IPC分类号： H01B11/02 , H04B3/00 , H01B11/04 , H01B11/10
CPC分类号： H01B11/02 , H04B3/00
摘要： A parallel data transmission system (20) comprises a cable (40) which is capable of balanced mode transmission but which is driven in an unbalanced mode. The cable includes a plurality of twisted pairs of individually insulated conductors (42--42) enclosed by a metallic shield (54). The twist lengths are relatively short to cause the pairs to be decoupled sufficiently from one another to allow substantially error-free, parallel transmission over relatively long distances. Interposed between the core and the shield is a spacing member (52) which has a relatively low dielectric constant. Receiving facilities are provided for detecting whether the level of transmitted signals is above or below predetermined threshold values and for converting the received signals into one of two or more logic levels. Advantageously, this system increases substantially the distances over which substantially error-free transmission in an unbalanced mode can be accomplished.
摘要翻译：并行数据传输系统（20）包括能够平衡模式传输但以不平衡模式驱动的电缆（40）。电缆包括由金属屏蔽（54）包围的多个单独绝缘的导体（42-42）的双绞线。扭转长度相对较短，导致成对彼此充分地分离，以允许在相对长的距离上实质上无差错的并行传输。芯与屏蔽之间的间隔部件（52）具有较低的介电常数。提供接收设备，用于检测发送信号的电平是否高于或低于预定阈值，并将接收的信号转换成两个或多个逻辑电平之一。有利的是，该系统基本上增加了可以在不平衡模式下实现基本无差错传输的距离。

6. 发明授权

US4262164A Telecommunications multipair cable 失效
标题翻译：电讯多功能电缆
公开(公告)号：US4262164A
公开(公告)日：1981-04-14
申请号：US97810
申请日：1979-11-27
申请人： Wendell G. Nutt , Joseph P. Savage, Jr.
发明人： Wendell G. Nutt , Joseph P. Savage, Jr.
IPC分类号： H01B7/02 , H01B11/02 , H01B11/04 , H01B11/06
CPC分类号： H01B7/0233 , H01B11/02
摘要： A multipair telephone cable (50) has been specifically developed for voice frequency and T1 carrier frequency transmission between cities. The copper wire gauge, dielectric diameter, and insulation expansion are uniquely designed so that this single cable design can be used for either air core or waterproof versions of the cable. Advantageously, both cable versions are compatible with existing carrier and voice frequency electronics. Also, the load coil spacing for voice frequency transmission and the regenerative repeater spacing for carrier transmission coincide in both versions.
摘要翻译：专用于多个城市之间的语音频率和T1载波频率的多路电话线（50）。铜线规，电介质直径和绝缘膨胀是独特的设计，使得这种单一的电缆设计可以用于电缆的空芯或防水版本。有利地，两种电缆型式都与现有载波和语音电路兼容。此外，语音频率传输的负载线圈间隔和载波传输的再生中继器间隔在两个版本中一致。

7. 发明授权

US4953206A Methods of and apparatus for providing substantially error-free transmitted data 失效
标题翻译：提供基本上无误差的传输数据的方法和装置
公开(公告)号：US4953206A
公开(公告)日：1990-08-28
申请号：US307144
申请日：1989-02-03
申请人： Harold W. Friesen , Janice B. Haber , Wendell G. Nutt
发明人： Harold W. Friesen , Janice B. Haber , Wendell G. Nutt
IPC分类号： H04B3/32
CPC分类号： H04B3/32
摘要： In a system (20) for transmitting voice and data signals, insulated metallic conductor pairs (44--44) which transmit data signals and insulated metallic conductor pairs (46--46) which are capable of transmitting voice signals are enclosed in a common sheath system of a single cable (40). User pickup of station apparatus (34) during the generation of a ringing voltage on a voice conductor pair causes that pair to become disturbing and to impart impulse noise to a closely coupled data pair. The data pair is designated a disturbed pair and the signals transmitted thereby may be affected adversely. This problem is overcome by providing a circuit (80) comprising in parallel a resistance and an inductance and being in series with the station apparatus. Such an arrangement reduces substantially that frequency content of any disturbing signal which appears on the disturbing pair and which is in the range of the data signal spectrum. This reduces the magnitude of crosstalk between the voice and data pairs and results in substantially error-free transmitted data.
摘要翻译：在用于发送语音和数据信号的系统（20）中，传输数据信号的绝缘金属导体对（44-44）和能够发送语音信号的绝缘金属导体对（46-46）封装在公共护套系统的单个电缆（40）。在声音导体对上产生振铃电压期间，站装置（34）的用户拾取导致该对变得干扰并且将脉冲噪声给紧密耦合的数据对。数据对被指定为干扰对，并且由此传输的信号可能受到不利影响。通过提供并联包括电阻和电感并与站装置串联的电路（80）来克服该问题。这种布置基本上减少出现在干扰对上并且在数据信号频谱的范围内的任何干扰信号的频率内容。这减少了语音和数据对之间的串扰的大小，并导致基本上无错误的传输数据。

8. 发明授权

US5162609A Fire-resistant cable for transmitting high frequency signals 失效
标题翻译：用于传输高频信号的防火电缆
公开(公告)号：US5162609A
公开(公告)日：1992-11-10
申请号：US739122
申请日：1991-07-31
申请人： Luc W. Adriaenssens , Richard D. Beggs , Harold W. Friesen , Wendell G. Nutt
发明人： Luc W. Adriaenssens , Richard D. Beggs , Harold W. Friesen , Wendell G. Nutt
IPC分类号： H01B7/295 , H01B11/00 , H01B11/02
CPC分类号： H01B7/295 , H01B11/02
摘要： A fire-resistant cable (20) which is suitable for the transmission of high frequency signals in a local area network includes a core which comprises a plurality of twisted pairs (22,22) of insulated conductors (24,24) and a jacket (35). Each insulated conductor of each pair includes an elongated metallic member (26) and an insulation system (28). The insulation system which is characterized by a suitable low dissipation factor includes dual layers, an outer one of which includes a flame-retardant plastic material. Also, the insulation system is characterized by a suitably low dielectric constant and by compatibility with a relatively short pair twist scheme. In one embodiment, the insulation system includes an inner layer (30) of a polyolefin plastic material and an outer layer (32) of a flame-retardant polyolefin plastic material. The jacket comprises a plastic material characterized by a suitably low dissipation factor and dielectric constant and in a preferred embodiment comprises a flame-retardant polyolefin plastic material. Preferably, the twist length of each pair does not exceed the product of about forty and the outer diameter of an insulated conductor of each pair.

9. 发明授权

US5155304A Aerial service wire 失效
标题翻译：空中服务线
公开(公告)号：US5155304A
公开(公告)日：1992-10-13
申请号：US557871
申请日：1990-07-25
申请人： Keith A. Gossett , Francis J. Mullin , Wendell G. Nutt , Todd A. Rhoades
发明人： Keith A. Gossett , Francis J. Mullin , Wendell G. Nutt , Todd A. Rhoades
IPC分类号： C03C25/10 , G02B6/44 , H01B7/18 , H01B7/38 , H01B7/40
CPC分类号： G02B6/4426 , G02B6/4422 , G02B6/4433 , H01B7/183 , H01B7/38 , H01B7/40
摘要： An aerial service wire (20) includes a jacket (40) having a generally rectangularly shaped cross section and comprising a polyvinyl chloride plastic material. Enclosed by the jacket are two groups of strength members (36--36) each of which includes a plurality of filaments and each of which is impregnated with a material which is compatible with that of the jacket. The strength members are disposed along axes (52,54) of the cross section which are normal to an axis (42) which passes through a geometric center through which a longitudinal axis (50) of the jacket passes. Conductors (30--30) which are individually insulated are disposed adjacent to the longitudinal axis with each strength member being disposed between the conductors and the outer surface of the jacket.

10. 发明授权

US4755629A Local area network cable 失效
标题翻译：局域网电缆
公开(公告)号：US4755629A
公开(公告)日：1988-07-05
申请号：US910848
申请日：1986-09-24
申请人： Richard D. Beggs , Harold W. Friesen , David M. Mitchell , Wendell G. Nutt , Palmer D. Thomas
发明人： Richard D. Beggs , Harold W. Friesen , David M. Mitchell , Wendell G. Nutt , Palmer D. Thomas
IPC分类号： H01B11/02 , H01B11/08
CPC分类号： H01B11/085 , H01B11/02
摘要： A cable (20) which is particularly suited to the transmission of substantially error-free data at relatively high rates over relatively long distances includes at least two pairs of individually insulated conductors (42--43). Each pair of individually insulated conductors is enclosed individually in its own tubular member (51) comprising a plastic material. A metallic shield (60) encloses the tubular members, and in a preferred embodiment, a plastic jacket (80) encloses the shield. In the preferred embodiment, two pairs of voice communications conductors are disposed at opposed locations between the shield and the jacket. The thickness of the tubular member is such that each insulated conductor of each twisted pair is caused to be spaced from the shield a distance which is not less than one half the diameter of the metallic wire portion of each pair enclosed by the tubular member.
摘要翻译：特别适用于在相当长的距离上以相对高的速率传输基本上无差错的数据的电缆（20）包括至少两对独立绝缘的导体（42-43）。每对单独绝缘的导体被单独封闭在其自己的包括塑料材料的管状构件（51）中。金属屏蔽件（60）围绕管状构件，并且在优选实施例中，塑料护套（80）围绕屏蔽件。在优选实施例中，两对语音通信导体设置在屏蔽和外壳之间的相对位置处。管状构件的厚度使得每个双绞线的每个绝缘导体与屏蔽件隔开不少于由管状构件包围的每对的金属线部分的直径的一半的距离。

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