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| Number | Title | Issue Date |
| 8093910 | Cross-talk processing in serial link buses A system and method for cross talk compensation in serial link busses, the method including: evaluating if a positive potential or a negative potential is being received by a receiver of a victim from an aggressor is dominant; measuring the distance between an incid... | 01/10/2012 |
| 7746083 | Apparatus and method for communications testing A communications connector tester for quickly and accurately analyzing communications connectors at production to determine whether the connectors are fit for use in certain communications applications is disclosed. Test signals at several discrete frequencies are s... | 06/29/2010 |
| 7466142 | Anechoic chamber for direct observation of the electromagnetic behavior of a tool An apparatus for studying the electromagnetic behavior of an electromagnetic wave-emitting or electromagnetic wave-receiving tool is provided. An anechoic chamber is configured to receive the tool as well as a person handling the tool. At least one analysis antenna ... | 12/16/2008 |
| 7425833 | Broad-band low-inductance cables for making Kelvin connections to electrochemical cells and batteries A broad-band technique for reducing the distributed inductance of a four-conductor Kelvin cable is disclosed. A special inductance-canceling cable section is connected in tandem with the cable section contacting the cell/battery. Connections between the two cable se... | 09/16/2008 |
| 7400151 | Connector crosstalk and return loss cancellation A device for testing data communications cabling. The device consists of a signal generator that can generate a test signal to test the data communications cabling and a receiving component that can receive a reflected signal produced by reflection of the test signa... | 07/15/2008 |
| 7370106 | Network revision system with local system ports A revision system for a network having a plurality of data ports, pairs of the data ports being connectable by a patch cord to place the pairs of data ports into communication with each other, the revision system including a computer processor, a scanner in communic... | 05/06/2008 |
| 7355413 | Testing method/arrangement measuring electromagnetic interference of noise in a to-be-tested printed circuit board A testing method for measuring electromagnetic interference of a noise on a to-be-tested printed circuit board, has the steps of: a) injecting a signal simulating an expected noise of a predetermined device mounted on the to-be-tested printed circuit board, into the... | 04/08/2008 |
| 7342400 | Method and apparatus for measuring employing main and remote units A test instrument employs main and remote test units at respective ends of a cable under test. The units operate in an active or passive measurement mode, wherein one of the units begins as the active unit, applying test signals to the cable under test to make a set... | 03/11/2008 |
| 7336230 | Method for measuring electromagnetic radiation pattern and gain of radiator using term waveguide A method for measuring electromagnetic radiation pattern and gain of radiator using TEM waveguide is disclosed. The method includes the steps of: a) measuring powers of output port of a transverse electric and magnetic (TEM) waveguide by changing arrangements of the... | 02/26/2008 |
| 7323884 | RF test chamber A system for testing radio frequency (RF) communications of a device capable of such communications is provided. The system includes a chamber for isolating the device from RF interference, an antenna that is suitable for RF communications with the device wherein th... | 01/29/2008 |
| 7317318 | FEXT cancellation of mated RJ45 interconnect A network test instrument provides maximum compensation of FEXT by use of mutual inductance between one or more signals. The inductance is suitably formed as a PCB trace component, or as discrete components. ... | 01/08/2008 |
| 7317317 | Shielded micro sensor and method for electrochemically monitoring residue in micro features The micro sensor is fabricated with a guard that shields the electrodes from the surrounding environment, thereby reducing loss of measurement signal through the parasitic capacitances to the substrate and fluid. The guards are low impedance points in the circuit th... | 01/08/2008 |
| 7315171 | Electronic judging apparatus for working state of the equipment The invention provides the electronic judging apparatus to detect the working state of the other electric equipment without modifying it inside. The common mode noise around the electric power supplying wires of the other equipment is measured by using the special m... | 01/01/2008 |
| 7313492 | Method and device for increasing the dynamic range and measuring accuracy of a measuring device for spectrum and/or network analysis A method and a device for increasing the dynamic range and measuring accuracy of a measuring device for spectrum and/or network analysis images a high-frequency electronic signal within a frequency range into at least two spectra through a first frequency translatio... | 12/25/2007 |
| 7310504 | IF frequency response characterization employing overlapping frequency bands A method and system characterizes an IF response of a receiver under test, such that an effect on the characterization by errors associated with uncertainties in knowledge of an RF stimulus signal used to perform the characterization is reduced. The method includes ... | 12/18/2007 |
| 7302361 | Modular telecommunication test unit A test unit for data communication networks is formed by placing one or more application modules between a front module and a rear module. The modules are secured together with a latching system and a bus structure provides for control and performance information tr... | 11/27/2007 |
| 7295018 | Correction of loss and dispersion in cable fault measurements A method of correcting distortions resulting from loss and dispersion in cable fault measurements. A cable is measured in the frequency domain to obtain a reflected response. Fractional sinusoidal components of the reflected response having attenuated amplitude and ... | 11/13/2007 |
| 7288943 | Electroimpedance tomograph with common-mode signal suppression An electroimpedance tomograph is provided with a plurality of electrodes (1), which can be placed on the body of a patient and are connected to a control and evaluating unit (20) via a selector switch (60). The control and evaluating unit (20... | 10/30/2007 |
| 7285962 | Method and apparatus for evaluating susceptibility to common mode noise in a computer system A system for injecting noise signals onto power generated by a power source comprising: a voltage source; a device under test having a power input in operable communication with the noise introduction apparatus; and a noise introduction apparatus interposed between ... | 10/23/2007 |
| 7279907 | Method of testing for power and ground continuity of a semiconductor device A method of testing for power and ground continuity of a semiconductor device having Input and Output (IO) pins and at least a pair of power and ground pins includes identifying the power and ground pins of the device. A victim pin is selected from the IO pins of th... | 10/09/2007 |
| 7272308 | Method of WDM channel tagging and monitoring, and apparatus Provided is an optical apparatus and method wherein power transfer coefficients arising from SRS are measured at a designated co-location point and the power of dithers, which are impressed on the channels of a multiplexed optical signal propagating through the opti... | 09/18/2007 |
| 7246019 | Method and apparatus for measuring delay time A method and apparatus for measuring a delay time is provided. First, a plurality of first/second phase signals, a first/second standard signal, and an inverse signal of the second standard signal are generated. The inverse signal of the second standard signal is ap... | 07/17/2007 |
| 7246368 | Cable plant certification procedure using cable modems A system for testing a cable network during normal operation interleaves test signals with live data traffic. Installed cable modems are used to generate the test signals. During live communication, such modems send upstream data at allotted time periods. Periodical... | 07/17/2007 |
| 7242176 | Systems and methods for evaluating electromagnetic interference Systems and methods for evaluating electromagnetic interference that may be employed, for among other things, to evaluate electronic system immunity to radiated electromagnetic fields and/or to identify particular electronic system areas that are susceptible to elec... | 07/10/2007 |
| 7239165 | Pulse transport apparatus, systems, and methods Apparatus and systems, as well as methods and articles, may operate to transmit an initial pulse to a directional coupler, where the initial pulse has an initial amplitude and a timed overshoot of a selected duration. Further activities may include stepping down the... | 07/03/2007 |
| 7233889 | Method, apparatus, and computer program for evaluating noise immunity of a semiconductor device A method of evaluating noise immunity of a semiconductor device is provided. An actual circuit including the semiconductor device is represented by an equivalent circuit which has a target equivalent circuit, a noise source equivalent circuit, and an external equiva... | 06/19/2007 |
| 7228679 | Electrical method of sensing operator presence on a walk-behind mower An operator presence control assembly for a walk-behind greens mower includes a handle supported on a frame of the walk-behind greens mower, a ribbon switch on the outer perimeter of the handle, and a circuit including the ribbon switch. The circuit is completed by ... | 06/12/2007 |
| 7224172 | Device and method for shielding electromagnetic emissions of equipment service vehicle A system for shielding an engine component of an equipment service vehicle including an enclosure, wherein the enclosure includes a surface having a plurality of apertures formed in the surface of the enclosure, the plurality of apertures being dimensioned to minimi... | 05/29/2007 |
| 7225420 | System and method for signal integrity testing of electronic circuits A system and method are disclosed for measuring signal crosstalk in an electronic circuit device or Integrated Circuit (IC) device, correlating the results with modeled information, and accurately identifying one or more levels of coupling noise in the device. For e... | 05/29/2007 |
| 7221259 | Electronic label interrogation through incidental electromagnetic radiation A system for electromagnetically interrogating electronically coded labels is provided. The system includes at least one electromagnetically interrogatable electronic coded label, an interrogator containing a generator of electromagnetic interrogation signals and a ... | 05/22/2007 |
| 7221140 | Circuit, method and system for providing one or more phase voltages from input voltages The present invention provides a phase voltage circuit. In one embodiment, the phase voltage circuit includes a line voltage stage coupled to at least three input voltage lines and configured to provide at least two corresponding line voltages. Additionally, the pha... | 05/22/2007 |
| 7221389 | Automatic equalization of video signals A video compensation system for analog video transmission is described. The compensation system is employed in an analog video switching circuit such that each time a conductive path is switched, the system automatically tests the new switch path for a new compensat... | 05/22/2007 |
| 7212013 | Apparatus for measuring parasitic capacitance and inductance of I/O leads on an electrical component using a network analyzer Apparatus and methods are provided for measuring the potential for mutual coupling in an integrated circuit package of any type or configuration using a network analyzer in conjunction with a coaxial test probe. Simple, low-cost test fixturing and methods of testing... | 05/01/2007 |
| 7200825 | Methodology of quantification of transmission probability for minority carrier collection in a semiconductor chip A method for computer aided design of semiconductor chips which minimizes sensitivity to latchup is provided. The method evaluates electron transmission, reflection and absorption at geometric shapes that represent components of the semiconductor. ... | 04/03/2007 |
| 7199593 | Apparatus and methods for measuring parasitic capacitance and inductance of I/O leads on an electrical component using a network analyzer Apparatus and methods are provided for measuring the potential for mutual coupling in an integrated circuit package of any type or configuration using a network analyzer in conjunction with a coaxial test probe. Simple, low-cost test fixturing and methods of testing... | 04/03/2007 |
| 7193422 | Patch panel system A patch panel system including a patch panel having a first outlet including a first conductive tab and a device having a second outlet including a second conductive tab. A patch cord has a first plug having a first screen for contacting the first tab and a second p... | 03/20/2007 |
| 7170314 | Multiple channel modules and bus systems using same Various module structures are disclosed which may be used to implement modules having 1 to N channels. Bus systems may be formed by the interconnection of such modules. ... | 01/30/2007 |
| 7154845 | Method and system for measuring crosstalk utilizing a crossbar switch A method for measuring crosstalk in a data service system includes transmitting a signal using a first device. The first device is coupled to a solid state crossbar switch. The method includes coupling the first device using the crossbar switch to a first data line ... | 12/26/2006 |
| 7154278 | Arrangement for detecting a leakage current or defect current The invention is based on a circuit arrangement for the detection of a leakage current or defect current, by means of which the power supply of an electronic circuit can be switched off. It is suggested that a track conductor connected with a signal line or a... | 12/26/2006 |
| 7154280 | Apparatus and method for communications testing A communications connector tester for quickly and accurately analyzing communications connectors at production to determine whether the connectors are fit for use in certain communications applications is disclosed. Test signals at several discrete frequencies are s... | 12/26/2006 |
