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1. 发明申请

WO1993000759A1 PROCESS FOR FINDING THE NUMBER OF BIT ERRORS IN A FLOW OF DATA 审中-公开
标题翻译：在数据流中发现数位错误的过程
公开(公告)号：WO1993000759A1
公开(公告)日：1993-01-07
申请号：PCT/DE1992000394
申请日：1992-05-12
申请人： SIEMENS AKTIENGESELLSCHAFT , ARWEILER, Hans-Werner , WOLF, Andreas
发明人： SIEMENS AKTIENGESELLSCHAFT
IPC分类号： H04L01/24
CPC分类号： H04L43/50 , H04L1/24
摘要： Test data (5) are inserted on the data source side into a flow of data (4) transmitted to a data receiver (3) from a data source (1) via at least one transmission path (2). A bit error function e(n) is obtained from the test data received (6) which is multiplied by an analysis function for partwise evaluation and then time-integrated. The result of evaluation is a measure of the number of bit errors. The bit error function (e(n)) is preferably auto-correlated by being used itself as an analysis function. The value of the main maximum M of the auto-correlation function AKF(m) is a measure of the number of bit errors.

2. 发明申请

WO1994029983A1 PERFORMANCE MONITORING AND FAILURE ISOLATION IN A POINT-TO-MULTIPOINT COMMUNICATION NETWORK 审中-公开
标题翻译：点到多点通信网络中的性能监测和故障分离
公开(公告)号：WO1994029983A1
公开(公告)日：1994-12-22
申请号：PCT/US1993011048
申请日：1993-11-15
申请人： ADC TELECOMMUNICATIONS, INC.
发明人： ADC TELECOMMUNICATIONS, INC. , OPOCZYNSKI, Adam
IPC分类号： H04L01/24
CPC分类号： H04L43/00 , H04L1/22 , H04L1/24 , H04L2001/0093
摘要： A system monitors the performance of a communications network and isolates the location of equipment failures therein through analysis of performance error data. The system passively monitors the performance of the network, operating in the background during normal data and/or voice transmission. The head end generates and inserts multiple error codes, one for each remote unit, into the downstream traffic path. Each remote unit extracts and decodes its respective error code to determine whether a downstream error occurred. Each remote unit then calculates a new error code based on the result of the downstream decode and the respective upstream data message. The head end receives the upstream error codes from all the remote units, decodes them, and accumulates the error data from all remote units over a period of time. An error distribution is generated, and an analysis is performed thereon to isolate the location of error causing equipment failures. The information thus obtained can then be used to initiate facility and equipment protection and/or appropriate maintenance procedures. The invention results in an increased quality of transmission with minimal network down time and minimal impact on overall system performance.
摘要翻译：系统监视通信网络的性能，并通过分析性能错误数据来隔离设备故障的位置。系统被动地监视网络的性能，在正常数据和/或语音传输期间在后台运行。头端生成并将多个错误代码（每个远程单元一个）插入下游流量路径。每个远程单元提取并解码其各自的错误代码以确定是否发生下游错误。然后，每个远程单元基于下游解码的结果和相应的上游数据消息来计算新的错误码。头端从所有远程单元接收上游错误代码，对其进行解码，并在一段时间内累积来自所有远程单元的错误数据。生成错误分布，并对其进行分析，以隔离引起设备故障的错误位置。因此获得的信息可用于启动设备和设备保护和/或适当的维护程序。本发明导致传输质量提高，网络停机时间最短，对整个系统性能影响最小。

3. 发明申请

WO1993000760A1 PROCESS FOR DETERMINING THE ORIGIN OF BIT ERRORS 审中-公开
标题翻译：确定位错误原因的过程
公开(公告)号：WO1993000760A1
公开(公告)日：1993-01-07
申请号：PCT/DE1992000395
申请日：1992-05-12
申请人： SIEMENS AKTIENGESELLSCHAFT , ARWEILER, Hans-Werner , WOLF, Andreas
发明人： SIEMENS AKTIENGESELLSCHAFT
IPC分类号： H04L01/24
CPC分类号： H04L43/50 , H04L1/24
摘要： A flow of data (DS) from a data source (1) passes to a data receiver (9) via an intermediate path (5) and a transmission path (7). Before entering the transmission path (7) the flow of data (DS) is scrambled in a predetermined manner and unscrambled in the same manner on leaving the transmission path (7). A bit error function e(n) is obtained from test data (TZ) inserted into the flow of data (DS) at the data source and evaluated according to its period length (N). A bit error (BF) occurring before scrambling goes unmultiplied to the data receiver after unscrambling, whereas a bit error (BF) occurring on the transmission path (7) is multiplied by a period length (Nv) specific to the descrambling. A comparison of this period length (Nv) with the period length (N) of the bit error function (e(n)) makes it possible to locate the origin.

4. 发明申请

WO1997008865A1 MULTICHANNEL TRANSMISSION SYSTEM WITH TEST CIRCUIT 审中-公开
标题翻译：具有测试电路的多通道传输系统
公开(公告)号：WO1997008865A1
公开(公告)日：1997-03-06
申请号：PCT/FR1996001320
申请日：1996-08-23
申请人： T.R.T. TELECOMMUNICATIONS RADIOELECTRIQUES ET TELEPHONIQUES , VERGNES, Alain
发明人： T.R.T. TELECOMMUNICATIONS RADIOELECTRIQUES ET TELEPHONIQUES
IPC分类号： H04L01/24
CPC分类号： H04L1/244 , H04J3/1611
摘要： A multichannel transmission system has at least one transmitter portion (1), one receiver portion (2) and one test circuit comprising a single test sequence generator (23), a switching circuit (25) for simultaneously connecting the output of said sequence generator to one or more of said channels on the basis of the tests to be conducted, a sequence generator control circuit for changing the sequence word, and an output circuit connected to said sequence generator to sample and hold, for all the channels, the code provided during the above progression. The device is useful for testing SDH systems.
摘要翻译：多通道传输系统具有至少一个发射机部分（1），一个接收机部分（2）和一个测试电路，包括单个测试序列发生器（23），切换电路（25），用于将所述序列发生器的输出端连接到基于要进行的测试的一个或多个所述信道，用于改变序列字的序列发生器控制电路，以及连接到所述序列发生器的输出电路，用于对所有信道采样和保持在以上进展。该设备可用于测试SDH系统。

5. 发明申请

WO1996036147A1 DETECTION OF LOOP-BACK CONDITIONS ON FAULTY DIGITAL TRUNKS 审中-公开
标题翻译：检测故障数字传输中的环回条件
公开(公告)号：WO1996036147A1
公开(公告)日：1996-11-14
申请号：PCT/CA1996000289
申请日：1996-05-08
申请人： NEWBRIDGE NETWORKS CORPORATION , KUHL, Tim , NOLAN, Bruce , KITOWICZ, Mark
发明人： NEWBRIDGE NETWORKS CORPORATION
IPC分类号： H04L01/24
CPC分类号： H04L43/00 , H04J3/14 , H04L1/24 , H04M3/244
摘要： A method of detecting loopbacks on trunks in digital networks, comprises the steps of detecting an out-of-service trunk, continually placing a predetermined bit pattern on an outgoing channel of a trunk card, continually monitoring a receive channel of the trunk card to detect said bit pattern, and identifying the presence of a loopback when said bit pattern is persistently detected on the receive channel. This method avoids the need to dedicate a trunk channel for signaling purposes. By detecting the presence of loopbacks, intelligent networks can be prevented from unjustifiably clearing an alarm condition and returning traffic to a fault path.
摘要翻译：一种在数字网络中检测中继线环回的方法，包括以下步骤：检测出业务中继，将预定比特模式连续放置在中继卡的输出信道上，持续监控中继卡的接收信道，以检测所述位模式，并且当在所述接收通道上持续检测到所述位模式时，识别环路的存在。该方法避免了将信道用于信令的专用信道。通过检测环回的存在，可以防止智能网络不合理地清除报警条件并将流量返回到故障路径。

6. 发明申请

WO1990004295A1 SYMBOL DETECTION AND ERROR CORRECTION CODING IN A LOCAL AREA NETWORK 审中-公开
标题翻译：本地区网络中的符号检测和错误校正编码
公开(公告)号：WO1990004295A1
公开(公告)日：1990-04-19
申请号：PCT/US1989004503
申请日：1989-10-12
申请人： CONCORD COMMUNICATIONS, INC.
发明人： CONCORD COMMUNICATIONS, INC. , FURLONG, Darrell
IPC分类号： H04L01/24
CPC分类号： H04L25/06 , H04L1/247
摘要： A symbol detection and correction scheme for local area network modems, especially those which receive one of three symbols at any given time, such as those operating in accordance with the IEEE 802.4 standard. The invention significantly improves the bit error rate observed by the layer above the modem. The modem operates on a received signal with a pair of slicers. One slicer operating as a two-symbol decoder, and a second slicer operates as a three-symbol decoder. A receiver state machine is used to keep track of which portion of a frame is currently expected to be received. Depending upon the particular context, one or both of the slicer outputs are used by the state machine to determine which of the three symbols was received. For example, when the receiver is in a state where only one of two data symbols are expected, and no control symbols are expected, only the two-symbol slicer output is used. The three-symbol slicer output, and logical combinations of the three-symbol slicer output and the two-symbol slicer output, are used at other times. The receiver state machine recognizes errors in pseudo-silence, start delimiter, and end-delimiter sequences without reporting such errors to the upper level, thereby greatly decreasing the error rate observed there.

7. 发明申请

WO1996024995A3 METHOD OF COMMUNICATION CHANNEL MONITORING USING PARITY BITS 审中-公开
公开(公告)号：WO1996024995A3
公开(公告)日：1996-08-15
申请号：PCT/US1996001606
申请日：1996-02-06
申请人： ADC TELECOMMUNICATIONS, INC.
发明人： ADC TELECOMMUNICATIONS, INC. , ANDERSON, Brian, D. , ROBERTS, Harold, A. , BREDE, Jeffrey , BUSKA, Steven, P.
IPC分类号： H04L01/24

8. 发明申请

WO1993017511A1 TESTING OF A DATA-TRANSMISSION LINE USING DUAL CROSS-CORRELATION TO ASSESS THE NUMBER OF DEFECTIVE BITS 审中-公开
标题翻译：使用双向交叉相关来测量数据传输线，以评估有缺陷的位数
公开(公告)号：WO1993017511A1
公开(公告)日：1993-09-02
申请号：PCT/DE1993000108
申请日：1993-02-03
申请人： SIEMENS AKTIENGESELLSCHAFT , WOLF, Andreas
发明人： SIEMENS AKTIENGESELLSCHAFT
IPC分类号： H04L01/24
CPC分类号： H04L1/242
摘要： The data-transmission line (DS) has a digital test-sequence (a) fed into it at the input end. An output sequence received is correlated, by means of a cyclically bitwise shifted exclusive-OR function (EXOR) followed by check-sum formation to form a dual cross-correlation (KKFd), with a reference sequence (R) corresponding to the test sequence. The number of defective bits (BF) is immediately apparent from the low-order positions of the extreme value (EX) of the cross-correlation function (KKFd).
摘要翻译：数据传输线（DS）具有在输入端馈入其中的数字测试序列（a）。接收到的输出序列通过循环移位的异或（EXOR）函数（EXOR）进行相关，随后进行校验和形成以形成双互相关（KKFd），其中参考序列（R）对应于测试序列。从互相关函数（KKFd）的极值（EX）的低位置立即显现有缺陷位（BF）的数量。

9. 发明申请

WO1993000758A1 PROCESS FOR DETECTING THE NATURE OF DATA-FALSIFYING INTERFERENCE 审中-公开
标题翻译：检测数据伪造干扰性质的过程
公开(公告)号：WO1993000758A1
公开(公告)日：1993-01-07
申请号：PCT/DE1992000391
申请日：1992-05-12
申请人： SIEMENS AKTIENGESELLSCHAFT , ARWEILER, Hans-Werner , WOLF, Andreas
发明人： SIEMENS AKTIENGESELLSCHAFT
IPC分类号： H04L01/24
CPC分类号： H04L43/50 , H04L1/24
摘要： Test data are inserted on the data source side into a data stream (DS) transmitted to a data receiver (5) from a data source (1) via at least one transmission section (4). A bit error function (e(n)) is obtained from the test data received. The bit error function (e(n)) is evaluated in a part by part manner to discover its periodicity, the length of the partial section evaluated at the same time being measured in such a way that it contains a plurality of bit errors (BF). The bit error function (e(n)) or (err(n)) is subjected to auto-correlation. The maxima (M, Ml, ...Mi) of the auto-correlation functions (AKF(m)) thus obtained are used to determine the nature of the interference (10, 11) with reference to its stochastic or deterministic nature.

10. 发明申请

WO1992021190A1 FAULT DETECTION AND ISOLATION OF FIBER TO THE CURB SYSTEMS 审中-公开
标题翻译：纤维的故障检测和隔离到曲轴系统
公开(公告)号：WO1992021190A1
公开(公告)日：1992-11-26
申请号：PCT/US1992003930
申请日：1992-05-11
申请人： RAYNET CORPORATION , ELLERSICK, William, F.
发明人： RAYNET CORPORATION
IPC分类号： H04L01/24
CPC分类号： H04Q3/0062 , H04L1/24
摘要： A fault diagnosis apparatus (3, 7) for a telecommunication system (1) that transmits and cross-connects telephone signals between multiple telephone central office feeder lines (2) and telephone subscriber equipment (10) operates by retransmitting telephone signals received from the feeder lines in a digital time multiplex format at a transmission rate sufficiently fast so as to create a plurality of spare time slot channels in a retransmission frame which are available for fault diagnosis purposes. Accordingly, it is not neccessary to rob feeder voice or signaling channels to perform fault diagnosis.
摘要翻译：用于在多个电话中心局馈线（2）和电话用户设备（10）之间发送和交叉连接电话信号的电信系统（1）的故障诊断装置（3,7）通过重传从馈线以足够快的传输速率的数字时间复用格式的线路，以便在可用于故障诊断目的的重传帧中创建多个备用时隙信道。因此，抢救馈线语音或信令信道进行故障诊断不是必需的。

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