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1. 发明授权

US06590862B1 Line interfacing apparatus with N+1 configuration 失效
标题翻译：具有N + 1配置的线路接口设备
公开(公告)号：US06590862B1
公开(公告)日：2003-07-08
申请号：US09382254
申请日：1999-08-24
申请人： Yamato Tachibana , Takashi Yokoto
发明人： Yamato Tachibana , Takashi Yokoto
IPC分类号： G01R3108
CPC分类号： H04Q11/0421 , H04Q2213/13003 , H04Q2213/13031 , H04Q2213/13166 , H04Q2213/13167 , H04Q2213/13203 , H04Q2213/13292 , H04Q2213/1332
摘要： A line interfacing apparatus has terminating units connected to lines, a spare terminating unit, a line selector for connecting one of the lines to the spare terminating unit, and a termination controller. The termination controller has switches for switching connections between the terminating units and a switching unit of a higher apparatus. If any one of the terminating units fails, the line selector is controlled to switch the line connected to the failed terminating unit to the spare terminating unit. At the same time, the switches of the termination controller are controlled to supply signals from the spare terminating unit, instead of signals from the failed terminating unit, to the switching unit of the higher apparatus.
摘要翻译：线路接口装置具有连接到线路的终端单元，备用终端单元，用于将线路中的一条连接到备用终端单元的线选择器，以及终端控制器。终端控制器具有用于切换终端单元与较高设备的切换单元之间的连接的开关。如果终止单元中的任何一个发生故障，则选择器被控制以将连接到故障终止单元的线路切换到备用终端单元。同时，终端控制器的开关被控制以将来自备用终端单元的信号，而不是来自故障终止单元的信号提供给较高设备的切换单元。

2. 发明授权

US5285459A HDB3 code violation detector 失效
标题翻译： HDB3代码违规检测器
公开(公告)号：US5285459A
公开(公告)日：1994-02-08
申请号：US755761
申请日：1991-09-06
申请人： Yuzo Okuyama , Kazuo Sato , Yamato Tachibana , Ryuhei Motono , Kazuo Takeoka
发明人： Yuzo Okuyama , Kazuo Sato , Yamato Tachibana , Ryuhei Motono , Kazuo Takeoka
IPC分类号： H04L25/02 , H03M5/18 , H04L1/24 , H04L25/49 , G06F11/00 , H03M5/06 , H03M13/00
CPC分类号： H04L25/4925 , H03M5/18 , H04L1/247
摘要： An HDB3 code violation detector includes a converting part for receiving positive polarity data and negative polarity data from a PCM line and for converting an HDB3 code received via the PCM line into an NRZ signal, and a first judging part receiving the positive polarity data, the negative polarity data and the NRZ signal, for judging whether or not a pattern of the NRZ signal received from the converting part is possible when the NRZ signal is NRZ "1" and for outputting a judgement result. In addition, the detector includes a second judging part receiving the positive polarity data, the negative polarity data and the NRZ signal, for judging whether or not a pattern of the NRZ signal received from the converting part is possible when the NRZ signal has a maximum of three consecutive NRZ "0"s and for outputting a judgement result. Further, the detector includes a third judging part receiving the positive polarity data, the negative polarity data and the NRZ signal, for judging whether or not a pattern of the NRZ signal received from the converting part is possible when the NRZ signal has at least four consecutive NRZ "0"s and for outputting a judgement result, and a detecting part for detecting a code violation of the HDB3 code based on the judgement results of the first, second and third judging parts.
摘要翻译： HDB3代码违规检测器包括：转换部件，用于从PCM线路接收正极性数据和负极性数据，并将用于将经由PCM线路接收的HDB3代码转换为NRZ信号，以及接收正极性数据的第一判断部件，负极性数据和NRZ信号，用于在NRZ信号为NRZ“1”时判断从转换部分接收到的NRZ信号的模式是否可能，并输出判断结果。此外，检测器包括接收正极性数据，负极性数据和NRZ信号的第二判断部分，用于当NRZ信号具有最大值时判断从转换部分接收的NRZ信号的模式是否可能的三个连续的NRZ“0”并输出判断结果。此外，检测器包括接收正极性数据，负极性数据和NRZ信号的第三判断部分，用于当NRZ信号具有至少四个时，判断从转换部分接收的NRZ信号的模式是否可能连续NRZ“0”，并输出判断结果，以及检测部，根据第一，第二，第三判断部的判定结果检测HDB3码的代码违例。

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