公开(公告)号：US06466649B1

公开(公告)日：2002-10-15

申请号：US09456681

申请日：1999-12-09

申请人： Robert B. Walance ,  Wayne K. Wong

发明人： Robert B. Walance ,  Wayne K. Wong

IPC分类号： H04M124

CPC分类号： H04B3/46 ,  H04M3/26 ,  H04M2203/057

摘要： A test system automatically locates impedance mismatched, energy reflection discontinuities (e.g., bridged taps) along a wireline communication link, by coupling a linearly stepped sinusoidal waveform to a measurement location of the wireline link. The applied waveform propagates down the link and is reflected back from the energy reflection discontinuities. A line monitoring receiver coupled to the measurement location samples the response of the line to the swept waveform. A response processor executes a frequency domain reflectometry algorithm to analyze the frequency response of the wireline to the stepped frequency waveform. It then generates an output representative of distances from the measurement location to the bridged taps.

摘要翻译： 测试系统通过将线性阶梯正弦波形耦合到有线链路的测量位置来自动定位沿有线通信链路的阻抗失配的能量反射不连续性（例如，桥接抽头）。 施加的波形沿着链路传播并从能量反射不连续点反射回来。 耦合到测量位置的线路监测接收机将线路的响应采样到扫描波形。 响应处理器执行频域反射测量算法来分析有线线路的频率响应到阶跃频率波形。 然后，它产生代表从测量位置到桥接抽头的距离的输出。

公开(公告)号：US5621782A

公开(公告)日：1997-04-15

申请号：US460179

申请日：1995-06-02

申请人： Robert B. Walance ,  Derek G. Foster

发明人： Robert B. Walance ,  Derek G. Foster

IPC分类号： H04M3/28 ,  H04M3/30 ,  H04M1/24 ,  H04M3/08

CPC分类号： H04M3/30 ,  H04M3/28

摘要： A test interface adapter allows a line-conditioning or test device, such as a direct access test unit (DATU), that is normally interfaced with a standard central office switch via a no-test trunk, to be coupled to and communicate with the respective ports of a test interface of a non-standard central office switch that is not equipped with a no test trunk, so that conditioning and/or testing of subscriber telephone lines served by such non-standard central office switch may be carried out. When so installed, the interface adapter of the present invention is operative to map signals at first interface ports, to which the non-standard central office switch is connected, to second interface ports to which the line conditioning/test device (e.g DATU) is connected, and vice versa. The port lead and signal mapping functionality of the interface allows the accessing device to communicate with the respective ports of what would otherwise be a non-compatible test interface of the central office switch, so that it may controllably condition and/or test line circuits of the `NTT-less` central office switch.

摘要翻译： 测试接口适配器允许线路调节或测试设备，例如直接访问测试单元（DATU），其通常经由无测试中继线与标准中心局交换机接口，以被耦合到并与其相连接 不配备无测试中继的非标准中心局交换机的测试接口的端口，从而可以执行由这种非标准中心局交换机服务的用户电话线的调理和/或测试。 当这样安装时，本发明的接口适配器可操作以将与非标准中心局交换机连接的第一接口端口处的信号映射到线路调理/测试设备（例如DATU）所在的第二接口端口 连接，反之亦然。 接口的端口引导和信号映射功能允许访问设备与相应的端口通信，否则这些端口将是中心局交换机的不兼容测试接口，从而可以可控制地调节和/或测试线路电路 “NTT-less”中心局交换机。

公开(公告)号：US5832058A

公开(公告)日：1998-11-03

申请号：US736393

申请日：1996-10-24

申请人： Robert B. Walance ,  Derek G. Foster

发明人： Robert B. Walance ,  Derek G. Foster

IPC分类号： H04M3/28 ,  H04M3/30 ,  H04M3/08 ,  H04M3/22

CPC分类号： H04M3/30 ,  H04M3/28

摘要： A test interface adapter allows a line-conditioning or test device, such as a direct access test unit (DATU), that is normally interfaced with a standard central office switch via a no-test trunk, to be coupled to and communicate with the respective ports of a test interface of a non-standard central office switch that is not equipped with a no test trunk, so that conditioning and/or testing of subscriber telephone lines served by such non-standard central office switch may be carried out. When so installed, the interface adapter of the present invention is operative to map signals at first interface ports, to which the non-standard central office switch is connected, to second interface ports to which the line conditioning/test device (e.g DATU) is connected, and vice versa. The port lead and signal mapping functionality of the interface allows the accessing device to communicate with the respective ports of what would otherwise be a non-compatible test interface of the central office switch, so that it may controllably condition and/or test line circuits of the `NTT-less` central office switch.

摘要翻译： 测试接口适配器允许线路调节或测试设备，例如直接访问测试单元（DATU），其通常经由无测试中继线与标准中心局交换机接口，以被耦合到并与其相连接 不配备无测试中继的非标准中心局交换机的测试接口的端口，从而可以执行由这种非标准中心局交换机服务的用户电话线的调理和/或测试。 当这样安装时，本发明的接口适配器可操作以将与非标准中心局交换机连接的第一接口端口处的信号映射到线路调理/测试设备（例如DATU）所在的第二接口端口 连接，反之亦然。 接口的端口引导和信号映射功能允许访问设备与相应的端口通信，否则这些端口将是中心局交换机的不兼容测试接口，从而可以可控制地调节和/或测试线路电路 “NTT-less”中心局交换机。

公开(公告)号：US06751253B1

公开(公告)日：2004-06-15

申请号：US09543171

申请日：2000-04-05

申请人： Robert B. Walance ,  John L. Milligan ,  Roy A. Milligan

发明人： Robert B. Walance ,  John L. Milligan ,  Roy A. Milligan

IPC分类号： H04B138

CPC分类号： G06F8/65 ,  H04M1/24 ,  H04M3/308

摘要： A digital communication interface for downloading software for upgrading the functionality of a telephone craftsperson's butt-in test set is configured to be powered externally by respectively different voltages ported from the host computer and the test set. Digital communication connectivity for software upgrade signals sourced from the host computer for delivery to the control processor of the test set, and for communication signals sourced from the test set for delivery to the host computer, is effected by a pair of opto-isolators which provide signal integrity isolation between the respectively different parameters of the host computer and the test set.

摘要翻译： 用于下载用于升级电话技术人员对接测试装置的功能的软件的数字通信接口被配置为通过分别从主机和测试装置输入的不同电压向外部供电。 用于从主计算机提供的用于递送到测试组的控制处理器的软件升级信号的数字通信连接以及用于传送到主计算机的测试集的通信信号由一对光隔离器实现，该对隔离器提供 信号完整性隔离主机与测试仪的不同参数。

公开(公告)号：US06362630B1

公开(公告)日：2002-03-26

申请号：US09500270

申请日：2000-02-08

申请人： Alan B. Lowell ,  Robert B. Walance

发明人： Alan B. Lowell ,  Robert B. Walance

IPC分类号： G01R2700

CPC分类号： H04M3/301 ,  G01R31/026

摘要： A portable, hand-held ‘test tag’ device enables a test unit to conduct a wireline connection verification test, in order to determine connectivity of a subscriber metallic wireline pair from a point of access by the test unit to a ‘test tag’ point of entry location along the metallic wireline pair. The ‘test tag’ includes a controllable termination circuit and a port coupled to one or more lead connects, that enable a craftsperson to connect the test tag to the metallic wireline pair. The controllable termination circuit includes a prescribed resistance that is configured such that, for a first applied line voltage, the test unit will observe characteristics of the metallic line pair terminated with a low resistance termination, whereas for a second line voltage, the test unit will observe characteristics of the metallic line pair terminated with a high resistance termination.

摘要翻译： 便携式手持式“测试标签”设备使得测试单元能够进行有线连接验证测试，以便确定用户金属有线线对从测试单元的访问点到“测试标签”点的连接性 沿着金属线缆对的入口位置。 “测试标签”包括可控终端电路和耦合到一个或多个引线连接的端口，使得技工能够将测试标签连接到金属有线线对，可控终端电路包括规定的电阻， 对于第一施加线路电压，测试单元将观察以低电阻终止终止的金属线对的特性，而对于第二线电压，测试单元将观察以高电阻终止终止的金属线对的特性。

公开(公告)号：US06215854B1

公开(公告)日：2001-04-10

申请号：US09206570

申请日：1998-12-07

申请人： Robert B. Walance

发明人： Robert B. Walance

IPC分类号： H04M124

CPC分类号： H04M1/24 ,  H04M3/2272 ,  H04M3/301 ,  H04M3/308 ,  H04M3/42042 ,  H04M3/428 ,  H04M3/493 ,  H04M3/537 ,  H04M2242/22 ,  H04Q3/72

摘要： A digital signal processor-based test set is configured and programmed to enable a craftsperson to monitor, receive and process signals of a variety of formats that may be present on a line under test, including user feature analog modem signals. Such user feature signals may include caller-identification signals, visual message waiting indicator signals, and analog display services interface signals. The test set employs a signal processing routine that operates in two modes: 1- terminal mode—in which the test set functions in the place of customer premises equipment (CPE); and 2- line monitor mode—in which the test set is connected to the line under test and monitors data signals being transmitted to and received from an existing CPE. In both modes the test set has the ability to not only display the data being sent to and from the CPE, but also parametric information about the data.

摘要翻译： 基于数字信号处理器的测试集被配置和编程以使得技工能够监视，接收和处理可能存在于被测线路上的各种格式的信号，包括用户特征模拟调制解调器信号。 这样的用户特征信号可以包括呼叫者识别信号，视觉消息等待指示符信号和模拟显示服务接口信号。 测试集采用信号处理程序，其操作有两种模式：1-终端模式 - 其中测试集用于客户驻地设备（CPE）的位置; 和2线监视模式，其中测试集连接到被测线路，并监视被传输到现有CPE并从现有CPE接收的数据信号。 在两种模式下，测试集都不仅可以显示正在发送到CPE的数据，也可以显示有关数据的参数信息。

公开(公告)号：US5617466A

公开(公告)日：1997-04-01

申请号：US407878

申请日：1995-03-20

申请人： Robert B. Walance

发明人： Robert B. Walance

IPC分类号： H04M3/30 ,  H04M1/24 ,  H04M3/08 ,  H04M3/22

CPC分类号： H04M3/30

摘要： The possibility of corrupting digital data traffic carried by a data line (powered or unpowered), by the connection of a telephone test set to the data line is effectively prevented by augmenting the telephone test set with a mechanism that prevents the test set from asserting an OFF-HOOK condition on the line, unless it has been determined that each of two conditions are satisfied. These conditions are: 1- that no digital data traffic is being carried by the line; and 2- that the electrical voltage condition of the line satisfies a prescribed minimum voltage level criterion. If either of these conditions is not satisfied, a switch circuit installed in the test set's connection path to the line is maintained in a default, open condition, so that it is effectively impossible for the line to be presented with an OFF-HOOK condition through operation of the test set. This default condition remains in effect until both criterion are fulfilled. As a further safety precaution, should the line to which the test set is connected be determined to be carrying digital data traffic, the invention causes an audible alert tone to be generated as a warning signal to the craftsperson.

摘要翻译： 通过电话测试集与数据线的连接来破坏由数据线（供电或无电力）携带的数字数据流量的可能性通过用防止测试集断言的机制来增强电话测试集合被有效地防止 OFF-HOOK条件在线，除非已确定满足两个条件中的每一个。 这些条件是：1，线路不携带数字数据流量; 和2-线，其电压条件满足规定的最小电压电平标准。 如果这些条件中的任何一个不满足，则安装在测试仪的线路的连接路径中的开关电路保持在默认的打开状态，使得线路实际上不可能呈现OFF-HOOK状态 测试集的操作。 此默认条件保持有效，直到达到这两个标准。 作为进一步的安全预防措施，如果连接测试仪的线路被确定为携带数字数据业务，本发明将产生一个可听见的警报音作为技术人员的警告信号。