Matches 1 - 32 out of 32


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US20130271151 Cable Diagnostics for Base-T Systems  
A method includes generating a pulse, transmitting the pulse on a first cable of a multi-cable communication system, monitoring a second cable of the multi-cable communication system for the pulse...
US20110227582 METHODS FOR DETECTING A HIDDEN PEAK IN WIRE FAULT LOCATION APPLICATIONS - IMPROVING THE DISTANCE RANGE RESOLUTION  
Hidden or overlapped peaks may occur when using SSTDR technology to determine ware faults. These hidden/overlapped peaks may cause false negative determinations (no fault) when testing a wire for...
US20110012608 System and Method for Enhanced Accuracy in Cable Diagnostics of Cable Length  
A system and method for enhanced accuracy in cable diagnostics of cable length. Conventional cable diagnostics such as time domain reflectometry can be used to determine cable length. This...
US20050007121 Systems and methods for non-destructively testing conductive members employing electromagnetic back scattering  
A method of determining an anomaly in a pipe system. The pipe system comprises a pipe, insulation around the pipe, and shielding around the insulation. An electrical pulse is applied to a test...
US20120223720 Method And System For Detecting And Locating By Reflectometry Electrical Faults In Metal Structures  
The invention aims to provide for detecting and locating by reflectometry electrical faults in a network of metal structures able to receive electrical cables and perform the return-current...
US20130200904 METHOD AND ARCHITECTURE FOR DETECTING INACCESSIBLE ELECTRICAL ANOMALIES BY MEANS OF REFLECTOMETRY  
Detection and location of electrical faults in a network of metal structures which can receive electric cables and allow return of current by the cables. The reflectometry-based method involves...
US20110282593 WELD CHECK STATIONS  
A method of manufacture for a portable computing device is described. In particular, methods and apparatus for assessing a quality of weld joints used to connect one or more components of the...
US20090109774 TEST METHOD AND SEMICONDUCTOR DEVICE  
A test method and a semiconductor device is disclosed. One embodiment provides sending out a test signal by a semiconductor device. A reflected signal generated in reaction is compared to the test...
US20100164505 Cable diagnostics for base-T systems  
An apparatus and method for cable diagnostics is disclosed for deployment as part of an Ethernet communication system to conduct diagnostics. The system transmits one or more pulses which are...
US20150077131 METHOD AND SYSTEM FOR DIAGNOSING A CABLE BY DISTRIBUTED REFLECTOMETRY WITH SELF-SELECTIVE AVERAGE  
A method of testing a cable by distributed reflectometry, comprises: injecting into the cable a first periodic signal and a second periodic signal having the same number N of periods and the same...
US20090315565 ADAPTIVE PULSE WIDTH TIME DOMAIN REFLECTOMETER  
An adaptive pulse width (APW) Time Domain Reflectometer (TDR) comprises an enhancement to the standard Pulse TDR by adjusting the effective pulse width as a function of time. Improved resolution...
US20140117999 FAULT DIAGNOSIS SYSTEM, FAULT DIAGNOSIS DEVICE, FAULT DIAGNOSIS METHOD, PROGRAM, COMPUTER-READABLE MEDIUM, AND DEVICE UNDER TEST  
A fault diagnosis method utilizing a fault diagnosis system for diagnosing a photovoltaic module by estimating a fault location, the fault diagnosis system including a signal generator for...
US20110187381 Time Domain Reflectometry in a Coherent Interleaved Sampling Timebase  
A system and method for performing a time domain reflectometry measurement. The system includes a coherent interleaved sampling timebase, a sampling strobe generator for generating one or more...
US20150160283 ON-LINE TIME DOMAIN REFLECTOMETER SYSTEM  
A number of TDR systems and testing methods are provided that improve the quality and accuracy of information collected when propagating a signal along a length of cable in order to pinpoint...
US20140266238 Systems and Methods for Implementing S/SSTDR Measurements  
Systems and methods which utilize spread spectrum sensing on live circuits to obtain information regarding a circuit under test are provided. In some embodiments S/SSTDR testing may be utilized to...
US20110018547 Test Instruments For Pulse TDR, Step TDR and Tranmission Anaylsis  
The test instrument is used to perform both time domain reflectometry (TDR) and analysis of transmission signals on a line under test. Further, the test instrument provides for both pulse TDR and...
US20100277182 Implementing A Coded Time Domain Transmission Distance Meter  
A method and circuit for implementing a coded time domain transmission distance meter, and a design structure on which the subject circuit resides are provided. A first transmitter module...
US20110298467 Subsea Line Monitoring Device  
A subsea line monitoring device comprising a diagnostic unit adapted to be deployed, in use, in a subsea location and having a first connector, the diagnostic unit being operable, in use, to...
US20060197538 Self-test method for antennas  
The present invention relates to a radio communication apparatus for checking antenna interface connections of first antenna means of the radio communication apparatus, wherein a predetermined...
US20100141264 METHOD AND DEVICE FOR ANALYZING ELECTRIC CABLE NETWORKS  
The invention relates to a method and a device for analyzing electric cables in a network, for the detection and location of defects in networks comprising at least one junction from which there...
US20100188095 Time-Domain Reflectometry  
The present invention provides a method of time domain reflectometry including transmitting a test signal along a cable under test from one end and sensing and recording a reflected signal from...
US20110304340 SYSTEMS AND METHODS EMPLOYING TIME DOMAIN REFLECTOMETRY  
Methods of testing at least a transmission line of interest within a group of transmission lines for anomalies using Time Domain Reflectometry are provided. The testing methods set forth herein...
US20100271039 APPARATUS FOR DETECTING IMBALANCES IN A PAIRED LINE  
A device for measuring and isolating noise-creating imbalances in a paired telecommunications line has an internal circuit. The internal circuit includes a pulse generator. Pulses provided by the...
US20100211348 Method and apparatus for locating a fault in an electrical conductor, with interference compensation  
A voltage pulse is transmitted into a test object, and returned reflection pulses are evaluated to determine the location of a fault in the test object. The return signal includes a reflection...
US20100176815 Apparatus, Method, and Computer Program for Obtaining a Time-Domain-Reflection Response-Information  
An apparatus for obtaining a time-domain-reflection response-information has a signal driver adapted to apply two pulses of different pulse lengths to a TDR port in order to excite a first TDR...
US20170102426 Electric Power System Monitoring Using High-Frequency Signals  
A system for monitoring an electric power delivery system by obtaining high-frequency electric power system measurements and displaying event information is disclosed herein. The system may use...
US20170030960 SYSTEMS AND METHODS FOR IMPLEMENTING S/SSTDR MEASUREMENTS  
Systems and methods which utilize spread spectrum sensing on live circuits to obtain information regarding a circuit under test are provided. In some embodiments S/SSTDR testing may be utilized to...
US20170023632 SYSTEM AND METHOD FOR AUTOMATED TESTING OF AN ELECTRIC CABLE  
Briefly, a method and system is provided for testing a cable using a high performance Time Domain Reflectometry (TRD) system and method. The TDR has a timing generator that is constructed to...
US20160291077 PROBLEM DETECTION IN CABLE SYSTEM  
Devices (1) for detecting problems in cable systems (2) comprising cables (20-24) and loads (31-34) are provided with injectors (11, 12) for injecting first investigation signals into the cables...
US20160169957 SYSTEMS AND METHODS FOR IMPLEMENTING S/SSTDR MEASUREMENTS  
Systems and methods which utilize spread spectrum sensing on live circuits to obtain information regarding a circuit under test are provided. In some embodiments S/SSTDR testing may be utilized to...
US20160139195 PROBLEM DETECTION IN CABLE SYSTEM WITH FUSES  
Apparatuses (10) report problems in cable systems comprising cables (101) and loads (111) connected to the cables (101) via fuses (121) and comprise first circuits (1) for detecting the fuses...
US20160139194 REFLECTOMETRY METHOD FOR IDENTIFYING SOFT FAULTS AFFECTING A CABLE  
The reflectometry method for identifying at least one fault affecting a cable at at least one point, comprises: a step for estimating a parameter characteristic of the propagation of a signal...

Matches 1 - 32 out of 32