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7360124 Autonomous network fault detection and management system  
The invention provides an autonomous geo-referenced fault data detection, storage and management system and method for transmission line network such as cable distribution networks, based on an...
7302379 DSL system estimation and parameter recommendation  
Estimates of a communication system configuration, such as a DSL system, are based on operational data collected from a network element management system, protocol, users and/or the like. The...
7302047 Method of detecting remote ground condition  
Whether or not protection circuitry for a span-powered remote digital subscriber loop unit is properly connected to earth ground is determined by the deliberate assertion and detection of a ground...
7295655 Systems and methods for determining the status of telephone lines  
Systems and methods for detecting a status of a telephone line. Some of the systems include a telecommunications system which comprises a dial tone tester integrated with a demarcation device. Such...
7116760 System and method for single-ended line analysis for qualification and mapping  
In a system and method for determining the suitability of a copper pair line for xDSL service use, characteristic parameters of a copper pair line to be tested are measured. These characteristics...
7039685 Method and apparatus for conducting subscriber's phone testing remotely via the internet  
An apparatus for and method of remotely controlling electronic devices, such as telecommunication equipment attached to telephone lines, test equipment, and/or home electronics includes a master...
7035380 Line sharing multipoint POTS splitter with intelligent termination  
The present invention provides for a system and method for blocking leakage signals and uncoupling connections in a communication system. A leakage signal (LS) blocking splitter employs a high-pass...
7023963 DSL line card echo canceler-based mechanism for locating telecommunication line fault  
A digital subscriber loop line card-installed mechanism conducts parametric measurements on the wireline to which the line card is connected, and adjusts taps of an echo cancellation operator in...
7006445 Device and method for determining characteristics of a digital subscriber line  
A method for determining the suitability of a copper line, used for transmitting voice band signals and having one or more user devices coupled thereto for transmitting signals on the copper line,...
6987837 Close-out test system  
The invention is a method and system conducting a completion test on a communications line. The system includes a testing device coupled to a remote device by a network. Line-test results are...
6975706 Capacitance measurement-based mechanism for locating open telecommunication line fault  
To locate an open fault along a telecommunication wireline pair, a prescribed frequency tone is coupled to the wireline pair by way of a center tap of the transformer through which a line card is...
6959037 System and method for locating and determining discontinuities and estimating loop loss in a communications medium using frequency domain correlation  
A system for determining characteristics associated with a communication channel includes a transmitter for transmitting a first signal via the communication channel. The system includes a receiver...
6950497 Fault location in a telecommunications network  
A fault is located along a telecommunications line between the network terminating equipment and the local exchange by measuring a change in the capacitance of the line when compared with the...
6940949 Ring, tip, ground testing tool  
An apparatus and a method for determining faults in a telephone line. The apparatus has an enclosure housing a switch. The switch is for electrically communicating with a ring wire of a telephone...
6917595 Telecommunications transmission test set  
A test set includes at least one signal input port, a test circuitry, a processor, a user-input device, and a display. The test circuitry couples to and receives signals from the at least one...
6914963 Determining the composition of subscriber loops from frequency domain measurements  
Techniques for estimating distances to irregularities on a subscriber loop are described. A loop response is measured in the frequency domain. The loop response is weighted by a prolate spheroidal...
6901137 Detecting faults in subscriber telephone lines  
A method tests a subscriber line. The method includes providing a classifier to predict a performance characteristic of the line based at least in part on a value of an auxiliary variable. Each...
6876726 Determining the composition of physical structures from boundary measurements, including the composition of subscriber loops  
A method for the direct estimation of configuration parameters defining the make-up of a physical system, such as cable lengths and gauges in the case of telephone subscriber loops, from boundary...
6826155 Apparatus and method for facilitating standardized testing of signal lines  
The present invention provides for an apparatus and a method for testing and evaluating a transmission line. A set of command and data signals is received through an input/output interface. The...
6813340 Ringing SLIC fault handling  
A line card or other telephone or communications interface provided with a ringing SLIC outputs relatively high voltage, such as in excess of about 90 volts, and/or relatively high current such as...
6804328 Intelligent line testing  
The present invention provides for intelligent and efficient line testing by allowing a test control entity, such as an operational support system (OSS), to obtain information bearing on testing...
6765988 Automated dispatching from a telephone cable air pressure monitoring system  
A method and system are provided for automating the dispatching of maintenance services from a telephone cable air pressure monitoring system. If air pressure maintained in a telephone cable...
6757382 Quasi ground fault interruption signal-based activation of emergency pots by-pass paths for line-powered digital subscriber loop  
A ‘lifeline’ POTS back-up mechanism is operative to provide emergency plain old telephone service connectivity over a span-powered two-wire metallic digital subscriber loop pair, in response to...
6744854 Detection of bridge taps by frequency domain reflectometry-based signal processing with precursor signal conditioning  
A frequency domain reflectometry-based bridged tap detection system for a telecommunication wireline employs a prescribed filtering operator, such as a ‘best-fit’ curve filter or a piecewise...
6694015 Universal line interface in telecommunications system  
A universal line card architecture includes core circuitry for performing battery, overvoltage, ringing, supervision, coder/decoder circuit (CODEC), hybrid and test (BORSCHT) functions...
6611579 Method for predicting and diagnosing trouble in a connection having a plurality of components  
A computer-executable method for diagnosing trouble causes in telephone cable segments when trouble data are available only for entire cables is presented. This method diagnoses problems in the...
6590962 Method of performing non-interactive resistive fault location  
A method and apparatus to non-interactively test telephone networks and more specifically to localize faults such as resistive faults in the subscriber loop of the telephone network is presented....
6577711 Methods for detecting defective communications lines  
Methods and apparatus are disclosed for identifying defective communications lines. The method generally involves passively detecting signals symptomatic of and generated by a defective...
6563867 Arrangement for analyzing the nonlinear properties of a communication channel  
An arrangement to analyze the nonlinear properties of a communication channel that uses a test signal having a number of tones. The test signal is transmitted via the communication channel to be...
6553098 Apparatus and method for assessing leakage from cable networks  
An apparatus for assessing signal coupling and radiation from cable networks by exciting the network with multiple broadband signals modulated by a common source, the networks having a plurality of...
6466649 Detection of bridged taps by frequency domain reflectometry  
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...
6442239 Telephone line longitudinal balance tester and method  
A longitudinal balance test circuit connects to the tip and ring lines of a pair of telephone wires. It also connects to a shield conductor that extends with the tip and ring lines. The test...
6341159 Extrapolation of location and amplitude of noise sources on telecommunication wireline from ended access point  
A wide band noise extrapolation test system, which may reside within a processor-controlled test head installed in a central office, or as part of test signal generation and processing circuitry of...
6298119 System and method for digital telephone trouble reporting  
A system and method for telephone trouble reporting. One aspect of the present invention is a context-sensitive graphical user interface (GUI). The GUI allows a user to select a trouble reporting...
6292541 Line shunt and ground fault apparatus method  
A system and method to detect ground faults in a multi-processor communication system that includes a communications link that extends between the processors. The processors isolate different...
6226357 Security system alarm panel  
The invention provides an alarm panel connected to a telephone line. The alarm panel comprises a microprocessor connected to a circuit which operates in two states: passive and active. In the...
6201853 Telephone technician's remote assist apparatus and method  
A telephone technician's remote assist apparatus connects into a telephone line to be tested by the technician from a remote location. Control signals are sent from the remote location to the...
6163595 Way finding with an interactive faceplate  
An interactive electronic module (IEM) is adapted as a retrofit module for use in modular network equipment to provide real time analysis of trunk line signal performance and to detect trunk line...
6154447 Methods and apparatus for detecting and locating cable failure in communication systems  
In switching centers serving multiple local access providers, a problem arises in detecting cable failure and identifying the provider of the failed cable connected between the switching center and...
6147972 Method and system for achieving cell diagnosis of continuity in cell exchange  
In a cell exchange, cell diagnosis of continuity with respect to an individual part operating in a band width for a speed faster than a cell feeding speed is enabled by using cell test equipment...
6144721 Apparatus and method for line pair testing and fault diagnostics  
A line pair testing and fault diagnostic apparatus implementing three-terminal measurement techniques using a multiple frequency source waveform transmission to propagate a reflected waveform. The...
6128368 Apparatus for monitoring telecommunication transmission  
An apparatus for monitoring telecommunication transmission is disclosed that a resistance detection unit having a plurality of resistors connected in series is connected between an input terminal...
6104782 Method for measuring quality determining parameters of a firmly connected communications transmission link  
A method for measuring by means of a mobile auxiliary device, quality determining parameters of a communications transmission link which is firmly connected to at least one end thereof and includes...
6091713 Method and system for estimating the ability of a subscriber loop to support broadband services  
A method and system use voiceband transmission characteristics to estimate the viability of deploying broadband services over a subscriber loop in the public switched telephone network. The system...
6061429 Test telephone  
A test terminal includes a circuit for opening a loop switch to prevent setting up of calls from the terminal via a telephone line when a signal received from the telephone line via a first...
6026145 Method and apparatus for fault segmentation in a telephone network  
An automated telephone line test system that is well suited for determining the location of faults within a telephone network. The telephone line test system uses time domain reflectometry to aid...
6018576 Method and apparatus for automated node-based normalization after network restoration  
An automated and distributed method and apparatus for normalizing a network after restoration begins with end nodes of the restoral route detecting a clearing of alarms after a failure is repaired....
5995588 Tone location device for locating faults in a paired line  
A device and method are provided for locating faults in a paired line. The fault locating device has a transmitting unit connectable to the conductors of a paired line containing the fault. The...
5978449 Qualifying telephone line for digital transmission service  
A telephone wire pair is qualified for digital signal transmission by central office testing. The tip-to-ring capacitance of the wire pair is measured while applying to the wire pair an AC test...
5953390 Device for inducing a wink in a telephone system  
The present invention is directed to an adaptor for simulating the presence of a PBX device in a telephone network. The adaptor connects to an external line from the central office, and a test set....
Matches 1 - 50 out of 177 1 2 3 4 >