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1. 发明授权

KR100419584B1 스큐최소화방법및장치 失效
公开(公告)号：KR100419584B1
公开(公告)日：2004-05-20
申请号：KR1019980705653
申请日：1997-01-17
申请人： 텔레폰악티에볼라겟 엘엠 에릭슨(펍)
发明人： 린드스트롬벵트 , 몰한스-크리스터 , 스테이저오드
IPC分类号： H04B1/74 , H04L1/22
CPC分类号： H04L1/02
摘要： At a signal transmission rate of 1 Gb/s, the "bit time" is 1 ns. This corresponds to a bit length in an optical fibre of 0.2 m. In view of the fact that skew shall not exceed one-tenth of a bit length, this means that length differences between different conductors in a transmission line may not exceed 2 cm. With the intention of minimizing the skew that would thus otherwise occur in a transmission line, the transmission line (1) and its conductors (2) have been joined to form a ribbon cable or flat cable where the length difference (5) between different conductors (2) in the transmission line does not exceed 2 cm. By providing transmission lines, such as rolled-up flat ribbon cables for instance, which have been previously cut to precise and appropriate lengths, such as lengths of 10, 20, 30 m for instance, with a largest length deviation between different conductors of +/-1 cm, skew can be minimized when using the cables. By conductor is primarily meant an optical fiber, although other conductors such as coaxial conductors or twin wire conductors are conceivable. Since the three fibres are seated together along the major part of their lengths, they can be readily laid in an installation, which is an advantage in many types of installations, and the cable parts can be easily drawn apart and laid individually. With a guaranteed greatest length deviation of +/-1 cm of each fibre, skew can be controlled and more reliable signal transmission made possible with the aid of a majority decision.
摘要翻译：在1Gb / s的信号传输速率下，“比特时间” 是1纳秒。这对应于光纤中0.2微米的位长。鉴于歪斜不得超过一位长度的十分之一，这意味着传输线中不同导体之间的长度差异不得超过2厘米。为了最大限度地减少因此会在传输线中发生的歪斜，传输线（1）及其导体（2）已经连接在一起形成带状电缆或扁平电缆，其中不同导体之间的长度差（5）（2）在传输线上不超过2厘米。通过提供传输线，例如先前已被切割成精确和合适长度的例如卷起的扁平带状电缆，例如长度为10,20,30米，其中不同导体之间的最大长度偏差为+ / -1厘米，使用电缆时可以将偏斜减至最小。导体主要是指光纤，尽管其他导体如同轴导体或双导线也是可以想到的。由于三根光纤沿其长度的主要部分放置在一起，因此它们可以容易地铺设在设备中，这在许多类型的设备中是有利的，并且电缆部件可以容易地分开并单独放置。在每根光纤+/- 1厘米的最大长度偏差保证下，通过多数决定，可以控制偏斜并实现更可靠的信号传输。

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