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公开(公告)号：US09215063B2
公开(公告)日：2015-12-15
申请号：US14507702
申请日：2014-10-06
Applicant: QUALCOMM Incorporated
Inventor： George Alan Wiley , Chulkyu Lee
CPC classification number: H04L7/042 , H04L1/205 , H04L1/206 , H04L1/247 , H04L5/20 , H04L25/0272 , H04L25/0282 , H04L25/0294 , H04L25/0298 , H04L25/4917
Abstract: System, methods and apparatus are described that facilitate tests and measurements related to multi-wire, multi-phase communications links. Information is transmitted in N-phase polarity encoded symbols and an eye pattern corresponding to the symbols may be generated such that the symbols are aligned with a trigger for each symbol that corresponds to a clock edge used to sample the symbols. The eye pattern may be used to determine sufficiency of setup times in the communication links and other such characteristics defining a communications channel capabilities.
Abstract translation: 描述了便于与多线，多相通信链路相关的测试和测量的系统，方法和装置。 信息以N相极性编码符号发送，并且可以生成与符号相对应的眼图，使得符号与对应于用于采样符号的时钟边缘的每个符号的触发对齐。 眼图可以用于确定通信链路中的建立时间的充分性以及定义通信信道能力的其它这样的特性。
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公开(公告)号：USRE36862E
公开(公告)日：2000-09-12
申请号：US712487
申请日：1996-09-11
Applicant: Dev V. Gupta , Kyung-Yeop Hong
Inventor： Dev V. Gupta , Kyung-Yeop Hong
CPC classification number: H04L1/247
Abstract: Loop Performance Monitoring (LPM) for DDS loops is described. Even though DDS loops have Intentional Bipolar Violations (BPVs), a Loop Coding Violations (LCVs) detection strategy based on further processing of BPVs is described. By monitoring LCVs a local loop terminating device can determine Bit Error Rate (BER).A system is described by which an Office Channel Unit (OCU) can process LCV information to determine signal quality of the signal over the incoming local loop. If the signal quality falls below a certain threshold, the OCU can cut the loop off from the DDS circuit and send control codes into the network.A system is also described where a Network Interface Unit (NIU) with the LPM system communicates incoming LCV information to the OCU using low speed signalling over the simplex path between the transmit and receive pairs. The OCU monitors incoming LCVs as well, and thus has the information necessary to determine bi-directional BER performance.
Abstract translation: 描述了DDS循环的循环性能监控（LPM）。 尽管DDS循环具有故意双极违例（BPV），但是描述了基于BPV进一步处理的循环编码违规（LCV）检测策略。 通过监视LCV，本地环路终端设备可以确定误码率（BER）。 描述了一种系统，通过该系统，Office信道单元（OCU）可以处理LCV信息以确定通过传入本地环路的信号的信号质量。 如果信号质量低于某个阈值，OCU可以从DDS电路中切断环路，并将控制码发送到网络中。 还描述了一种系统，其中具有LPM系统的网络接口单元（NIU）通过在发送和接收对之间的单工路径上的低速信令将输入的LCV信息传送到OCU。 OCU也监视输入的LCV，因此具有确定双向BER性能所需的信息。
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公开(公告)号：US5394145A
公开(公告)日：1995-02-28
申请号：US029876
申请日：1993-03-11
Applicant: Dev V. Gupta , Kyung-Yeop Hong
Inventor： Dev V. Gupta , Kyung-Yeop Hong
CPC classification number: H04L1/247
Abstract: Loop Performance Monitoring (LPM) for DDS loops is described. Even though DDS loops have Intentional Bipolar Violations (BPVs), a Loop Coding Violations (LCVs) detection strategy based on further processing of BPVs is described. By monitoring LCVs a local loop terminating device can determine Bit Error Rate (BER).A system is described by which an Office Channel Unit (OCU) can process LCV information to determine signal quality of the signal over the incoming local loop. If the signal quality falls below a certain threshold, the OCU can cut the loop off from the DDS circuit and send control codes into the network.A system is also described where a Network Interface Unit (NIU) with the LPM system communicates incoming LCV information to the OCU using low speed signalling over the simplex path between the transmit and receive pairs. The OCU monitors incoming LCVs as well, and thus has the information necessary to determine bi-directional BER performance.
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公开(公告)号：US4468787A
公开(公告)日：1984-08-28
申请号：US319632
申请日：1981-11-09
Applicant: Francis P. Keiper, Jr.
Inventor： Francis P. Keiper, Jr.
CPC classification number: H04L1/247 , H04L25/4925
Abstract: A source of a duobinary data signal is connected to a remote point by a coupling network having a high pass characteristic and transmission line. The data signal received at the remote point is subtracted from a delayed version thereof to derive the change representative signal, which is utilized at the remote point to regenerate and/or detect code violations of the data signal. Preferably, the received data signal is subtracted from a version thereof delayed by one bit time period. Circuitry generates an indication of a violation when, after assuming one extreme level in a given bit time period, the change representative signal again assumes the same level before assuming the other extreme level during a bit time period separated by an odd number of bit time periods from the given bit time period. Circuitry may also convert the change representative signal back to the duobinary data signal. Specifically, a three-state reversible binary counter is stepped up one state each time the change representative signal assumes its high level, is stepped down one state each time the change representative signal assumes its low level, and remains unchanged in state each time the change representative signal assumes its intermediate level.
Abstract translation: 双二进制数据信号的源通过具有高通特性和传输线的耦合网络连接到远程点。 从远程点接收的数据信号从其延迟版本中减去，以导出在远程点利用的更改代表信号，以再生和/或检测数据信号的代码违例。 优选地，从延迟一位时间段的版本中减去接收的数据信号。 电路产生违规的指示，当在给定位时间周期内假定一个极端电平之后，在由奇数位位时间间隔分开的位时间段期间，在改变代表信号再次假设相同电平之前，假设另一极值电平 从给定的位时间段。 电路还可以将改变代表信号转换回二进制数据信号。 具体地说，每当变化代表信号呈现高电平时，三态可逆二进制计数器被升高一个状态，每当变化代表信号呈现低电平时逐步降低一个状态，并且每当改变状态保持不变状态 代表信号呈现其中间水平。
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公开(公告)号：US4177447A
公开(公告)日：1979-12-04
申请号：US882315
申请日：1978-03-01
Applicant: Jean-Yves Jaouen
Inventor： Jean-Yves Jaouen
CPC classification number: H04L1/247
Abstract: A device for detecting errors in digital transmission systems which use a line signal whose digital running total is bounded and can only take n distinct states, e.g. a high data rate digital transmission system. The error detection device comprises a synchronous up/down counter with k bistables which give, in real time, the digital running total, and an end decoder formed by logic gates and which is sensitive to the up/down counter overflowing from either of its upper or lower limit values, the number k being an integer which satisfies the inequality:2.sup.k >n.gtoreq.2.sup.k-1.
Abstract translation: 一种用于检测数字传输系统中的错误的装置，其使用其数字运行总计有界并且仅能够采用n个不同状态的线路信号。 高数据速率数字传输系统。 误差检测装置包括具有k个双稳态的同步加/减计数器，其实时地提供数字运行总计，以及由逻辑门形成的终端解码器，并且对从其上部的任一个溢出的上/下计数器敏感 或下限值，数k为满足不等式的整数：2k> n> / = 2k-1。
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Patent Agency Ranking
公开(公告)号：US4070646A
公开(公告)日：1978-01-24
申请号：US699619
申请日：1976-06-25
Applicant: Tommy L. Sandlin
Inventor： Tommy L. Sandlin
CPC classification number: H04L1/247
Abstract: An error detector for received pulses, which pulses normally alternately extend in opposite directions. An up-down counter has first, second, third and fourth sequential states. Means is provided for forming an error signal when the counter is in either the first or fourth state. Means is provided for resetting the counter to one of the second and third states after the counter reaches either the first or fourth state. Means is provided for receiving the pulses and for causing the counter to count up a state responsive to a pulse of one direction and for causing the counter to count down a state responsive to a pulse of the other direction.
Abstract translation: 用于接收脉冲的误差检测器，这些脉冲通常在相反的方向交替地延伸。 一个递减计数器具有第一，第二，第三和第四顺序状态。 提供了当计数器处于第一或第四状态时形成误差信号的装置。 提供了用于在计数器达到第一或第四状态之后将计数器复位为第二状态和第三状态之一的装置。 提供了用于接收脉冲并且使计数器对响应于一个方向的脉冲进行计数的状态并且使得计数器响应于另一个方向的脉冲来倒计数状态的装置。
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公开(公告)号：US3987395A
公开(公告)日：1976-10-19
申请号：US588956
申请日：1975-06-20
Applicant: Patrice Desombre , Jean-Pierre Steun
Inventor： Patrice Desombre , Jean-Pierre Steun
Abstract: The invention concerns regenerative repeaters for pulses. The method consists of detecting errors, coding them and recording them in a channel of a tele-locating frame. Each regenerative repeater of a connection has a channel which is attributed to it, for example channel i, for the repeater whose order is i. The device implementing the method comprises means for directing the tele-locating signals at the input of the repeater, memorizing them and applying them to a low-frequency modulator which reinjects them into a directing means at the output of the repeater; it comprises also means for detecting the channel whose order is i and recording therein the coded proportion of error of the repeater.
Abstract translation: 本发明涉及用于脉冲的再生中继器。 该方法包括检测错误，对它们进行编码并将其记录在远程定位框架的通道中。 连接的每个再生中继器具有归因于其的信道，例如信道i，用于其顺序为i的中继器。 实施该方法的装置包括用于将远程定位信号引导到中继器的输入端的装置，存储它们并将其应用到低频调制器，该低频调制器将它们重新注入在中继器的输出端的引导装置中; 它还包括用于检测其顺序为i并且在其中记录中继器的错误的编码比例的信道的装置。
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公开(公告)号：US3965309A
公开(公告)日：1976-06-22
申请号：US540813
申请日：1975-01-14
Applicant: Berton E. Dotter, Jr.
Inventor： Berton E. Dotter, Jr.
Abstract: A test system for a T carrier type telephone PCM communications system converts typical trio type pulse sets to quadruple sets in order to eliminate the dc offset. Thus, the test signal can be passed through several successive spans or through marginal repeaters in a manner similar to an ordinary data signal. The trio to quadruple conversion is accomplished by a stuffing procedure which compensates for any ambiguity in the audio crossover when the initial test signal is being produced. A reconverter may be remotely actuated to test any particular span or to loopback the test signal whereby testing may be carried on at a single location for both incoming and outgoing lines.
Abstract translation: 用于T载波型电话PCM通信系统的测试系统将典型的三重型脉冲组转换成四组，以消除直流偏移。 因此，测试信号可以以类似于普通数据信号的方式通过几个连续跨度或通过边缘中继器。 通过填充程序来完成三重转换，以补偿在产生初始测试信号时音频交叉中的任何歧义。 可以远程激活再转换器以测试任何特定的跨度或环回测试信号，从而可以在输入和输出线路的单个位置进行测试。
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39.发明授权Ternary code error detector for a time-division multiplex, pulse-code modulation system 失效时间分多址，脉冲编码调制系统的三进制码错误检测器
公开(公告)号：US3842401A
公开(公告)日：1974-10-15
申请号：US39583373
申请日：1973-09-10
Applicant: GEN ELECTRIC
Inventor： SMITH J , WILLIAMS J
CPC classification number: H04L1/247
Abstract: In a time-division multiplex, pulse-code modulation system, each sequence of four binary pulses representing information is converted to a group of three ternary pulses for transmission to a receiver. The conversions are made either in a positive mode if the prior net polarity is negative or in a negative mode if the prior net polarity is zero or positive. Use of the positive and negative modes insures that the net positive and the net negative polarities are kept within selected limits. At the receiver, a ternary code error detector is provided to detect if the net positive polarity or if the net negative polarity exceed the selected limits. If either selected limit is exceeded, the error detector produces an error signal which can be used in any way desired, such as to switch to other multiplexing equipment, or to switch to other transmission lines, or to produce any sort of desired alarm.
Abstract translation: 在时分多路复用中，脉码调制系统将表示信息的四个二进制脉冲的每一个序列转换成一组三个三进制脉冲，以便发送给接收机。 如果先前的净极性为负，则转换为正模式，或者如果先前的净极性为零，则为负模式。 使用正负模式可确保净正极和净负极性保持在选定的范围内。 在接收机处，提供三进制码错误检测器，以检测净正极性或净负极性是否超过所选极限。 如果超过选择的限制，则错误检测器产生可以以任何所需方式使用的错误信号，例如切换到其他复用设备，或切换到其他传输线路，或产生任何所需的报警。
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公开(公告)号：US3048819A
公开(公告)日：1962-08-07
申请号：US7387260
申请日：1960-12-05
Applicant: BELL TELEPHONE LABOR INC
Inventor： HELDER GEORGE K , MAYO JOHN S
IPC: H04L1/24
CPC classification number: H04L1/247
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