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| Number | Title | Issue Date |
| 7876085 | Quasi-resonant valley voltage detecting method and apparatus The present invention discloses a quasi-resonant valley voltage detecting method, comprising the steps of: generating a valley detection signal by detecting a valley of a first quasi-resonant signal; generating a count value by counting the valley detection signal; ... | 01/25/2011 |
| 7385384 | Diagnosis method for an antenna connection A method for testing a reliable connection of an antenna includes a coil (L) or something similar connected to a reference potential on one side and to the output of an amplifier on the other side, a first capacitor (C2) arranged in a parallel position to the... | 06/10/2008 |
| 7372683 | Over voltage detection circuit, and power source circuit, power supply system and electronic apparatus using the over voltage detection circuit An over voltage detection circuit, which is used in a power source, a power supply system, and an electronic apparatus, includes two voltage comparison circuits. A first comparison circuit, provided for high-speed signal responses, includes voltage dividing resistor... | 05/13/2008 |
| 7358722 | Integrated three-dimensional magnetic sensing device and method to fabricate an integrated three-dimensional magnetic sensing device An integrated three-dimensional magnetic or any field sensing device and a method to fabricate an integrated three-dimensional magnetic sensing device is presented. An integrated three-dimensional magnetic sensing device comprises an apparatus that defines at least ... | 04/15/2008 |
| 7339509 | Sampling system using sampling apertures of different durations A signal sampling system includes an input signal and a plurality of samplers. The plurality of samplers produces a plurality of sample output signals. Each sampler from the plurality of samplers samples the input signal to produce a corresponding sample output sign... | 03/04/2008 |
| 7289845 | Curvature based method for selecting features from an electrophysiologic signal for purpose of complex identification and classification A method for curvature based complex identification and classification comprises sensing a cardiac signal and computing curvatures at sample points on the sensed cardiac signal. Then to extract features from the computed curvatures, and compare the extracted feature... | 10/30/2007 |
| 7283479 | Cable TV system or other similar communication system A cable TV system, which is arranged to permit a transmission of signals in the return direction from local networks (10), included in the system, to a head end (11) of the system within a predetermined carrier frequency band, serving for the transmiss... | 10/16/2007 |
| 7280336 | Transient voltage detecting circuit The invention provides a transient voltage detecting circuit for detecting a transient voltage occurring at a power supply or a ground of an electronic system. The circuit according to the invention includes a plurality of detecting units of which the outputs are in... | 10/09/2007 |
| 7248066 | On-chip analysis and computation of transition behavior of embedded nets in integrated circuits An apparatus for enabling the on-chip analysis of the voltage and/or current transition behaviour of one or more embedded nets of an integrated circuit independently of the fabrication process. The said apparatus comprises a Reference Step Generator (RSG) for provid... | 07/24/2007 |
| 7231224 | Cable having embedded access points A cable has miniaturized, low-cost, highly-integrated wireless network access points embedded in the cable at periodic intervals along the length of the cable. Power conductors that run the length of the cable supply each of the access points with electrical power. ... | 06/12/2007 |
| 7222034 | In-circuit measurement of saturation flux density Bsat, coercivity Hc, and permiability of magnetic components using a digital storage oscilloscope An oscilloscope performs an in-circuit measurement of voltage across, and current through, a core winding of an inductor, and derives the actual B and H values with n number of turns, receives data indicative of the magnetic length of the circuit, and plots the B_H ... | 05/22/2007 |
| 7187161 | Transient protection of sensors The present invention includes a system with a sensor to detect a change in one or more physical characteristics and provide a corresponding electrical sensor signal, a controller including a power source for the sensor, and transient suppression circuitry. This cir... | 03/06/2007 |
| 7180301 | Power monitor-glitch trap system A device for sensing and capturing the state of a direct current electrical power line comprising a voltage comparator having a pair of inputs, one of the inputs adapted to be connected to the power line, the other input connected to an analog and digital I/O module... | 02/20/2007 |
| 7126330 | Integrated three-dimensional magnetic sensing device and method to fabricate an integrated three-dimensional magnetic sensing device An integrated three-dimensional magnetic or any field sensing device and a method to fabricate an integrated three-dimensional magnetic sensing device is presented. An integrated three-dimensional magnetic sensing device comprises an apparatus that defines at least ... | 10/24/2006 |
| 7112898 | Real-time digital voltage sag compensator An economical digital voltage sag compensator for overcoming sags in distributed electrical power. The voltage sag compensator employs an inexpensive micro-controller, a full wave bridge rectifier, a DC power supply, a voltage divider and an output switch. The micro... | 09/26/2006 |
| 7088925 | Device for detecting polarization mode dispersion Device for detecting polarization mode dispersion of an optical data signal, which has at least one EXOR gate together with an averaging device for measuring at least one value of the autocorrelation function of a baseband signal distorted by polarization mode dispe... | 08/08/2006 |
| 7088733 | Cable modem termination system for upstream frequency band The selection of which channel to use by a cable modem terminating system (CMTS) is made a function of input supplied by a spectrum analyzer. Note that typically the cable distribution system has coupled to it at the head end not only the CMTS but also a spectrum an... | 08/08/2006 |
| 7039471 | Method and device for calculating the steady-state time point of a controller A device for calculating the steady state behavior of a controller includes an amount generating unit for generating the amount of deviation of the regulator, a first threshold value calculation unit that detects whether the amount of deviation of the regulator has ... | 05/02/2006 |
| 7016796 | Fast and accurate AC RMS and DC measurement A small microcontroller or a DSP may be used to process digital signals representative of a measurement. Furthermore, special RMS AC measurement or DC noise rejection algorithms may have to be run on the microcontroller or the DSP. Other implementations may use cust... | 03/21/2006 |
| 6967853 | In-rush current management A duty cycle and period of clock stimulus signals of power conversion device are independently altered to handle in-rush current. In one embodiment, transient power supply turn on current observations coupled with changing of the duty cycle and period of clock stimu... | 11/22/2005 |
| 6915169 | Extendable and retractable lead having a snap-fit terminal connector A lead having an extendable and retractable fixation mechanism has a rotating terminal pin at the terminal end which rotates the fixation mechanism at the distal end. As the terminal pin is rotated, the fixation mechanism is extended or retracted from the distal end... | 07/05/2005 |
| 6912202 | Arrangement for testing network switch expansion port using external logic to emulate connected expansion port A network switch chip having an expansion port configured for transferring data according to a prescribed bus protocol is tested using an external logic unit (e.g., a field programmable gate array) configured to emulate a connected expansion port. The external logic... | 06/28/2005 |
| 6856127 | Oscilloscope-based automatic finder for locating high power dissipation areas in switch-mode power supply (SMPS) switching devices A method and apparatus for identifying and analyzing high power dissipation peaks across a switching device. The method and apparatus include processing voltage waveform data associated with a switching device to determine switching edge and slope parameters for eac... | 02/15/2005 |
| 6831453 | Determining the magnitude of pulses The magnitude of a pulse in a signal having both positive and negative polarity pulses (for example, a ternary PDH signal) is determined by measuring the magnitude of multiple samples of the signal. A reference level for the signal is determined from a plurality of ... | 12/14/2004 |
| 6628113 | Surge current measurement A novel method of and apparatus for accurately measuring surge currents such as motor-starting inrush currents is provided. An input signal from a current sensor is monitored, and when the input signal changes and exceeds a predetermined threshold, a surg... | 09/30/2003 |
| 6583612 | Static event detection/protection device A reusable miniaturized detector that utilizes magneto-optic elements to detect the occurrence of an electrostatic discharge during the manufacture or handling of electrostatic discharge sensitive electronic components and circuit boards. The device may a... | 06/24/2003 |
| 6452373 | Transient voltage recorder A voltage transient recorder can detect lightning induced transient voltages. The recorder detects a lightning induced transient voltage and adjusts input amplifiers to accurately record transient voltage magnitudes. The recorder stores voltage data from ... | 09/17/2002 |
| 6396255 | System and method for determining the polarity of an electrostatic event A reusable miniaturized detector that utilizes magneto-optic elements to detect the occurrence of an electrostatic discharge during the manufacture or handling of electrostatic discharge sensitive electronic components and circuit boards. The device may a... | 05/28/2002 |
| 6333634 | Method for measuring radio-frequency current A radio-frequency power supply (1) and a matching box (2) are electrically connected with a coaxial cable (4) while the matching box (2) and a main unit (3) are electrically connected with a coaxial cable (5). Around the coaxial cable (5), a radio-frequen... | 12/25/2001 |
| 6329651 | Process and device for real time sorting of detection events from a gamma ray detector and correction of the uniformity of detection elements from the detector Process for real time sorting of signals from several semi-conductor detection elements in which: a) during a calibration phase: amplitude data and signal rise time data are established for each event signal, a biparametric detection spectrum with amplitude an... | 12/11/2001 |
| 6291983 | Selecting and monitoring signal lines with spurious transients in broadband network The invention is a broadband network monitoring system and method. The system has one or more RF carrier generators that generate one or more generator signals, called a reference signal, each of the generator signals having a generator signal frequency. ... | 09/18/2001 |
| 6211664 | Device for measuring the rise time of signals interfered with by noise from gamma or X radiation detectors The invention relates to a device for measuring the rise time of the electronic component of a signal disturbed by electronic noise and whose signal-to-noise ratio is mediocre. It incorporates a differentiating circuit (C12, C11) having at least one resis... | 04/03/2001 |
| 6172496 | Static event detection/protection device A reusable miniaturized detector that utilizes magneto-optic elements to detect the occurrence of an electrostatic discharge during the manufacture or handling of electrostatic discharge sensitive electronic components and circuit boards. The device may a... | 01/09/2001 |
| 6121779 | Bulk current injection system A bulk current injection (BCI) system and method for testing electromagnetic susceptibility of electrical apparatus includes an RF modulator in a BCI setup. The BCI setup with RF modulator injects high instantaneous currents with a very low, controllable ... | 09/19/2000 |
| 6040689 | Current sensing method and apparatus The present invention is a current sensing method and apparatus wherein a current transformer producing a secondary current is disposed in communication with a conductor having a primary current desired to be sensed. A current analyzer in communication wi... | 03/21/2000 |
| 5973499 | Method for testing electrical loads in a vehicle electrical system A method for testing electrical loads in a vehicle electrical system is provided, in which the loads, which are fed by a vehicle battery, are selectively switched on and off. The load-specific current consumption in the switched-on state is determined and... | 10/26/1999 |
| 5973604 | Method for monitoring optical fiber cables for lightning damage Lightning strikes on or proximate to an optical fiber cable may be detected via a lightning detector (18) that monitors the characteristics of voltage present on a metallic sheath (12) associated with the cable. The lightning detector (18) detects excessi... | 10/26/1999 |
| 5899960 | Apparatus and method for power disturbance analysis and storage of power quality information A power monitoring system with associated signal processing and storage capabilities. Each leg of a three-phase power signal is simultaneously sampled on a plurality of channels to capture the instantaneous content of the power signal without time-skewing... | 05/04/1999 |
| 5886429 | Voltage sag/swell testing station A computer controllable testing and monitoring station forms short-term intervals of simulated alternating current power level disturbance, either undervoltage (sag) or overvoltage (swell). The station forms the short term voltage sags or swells so that t... | 03/23/1999 |
| 5845231 | Apparatus and method for power disturbance analysis and dynamic adaptation of impulse memory storage size A power monitoring system with associated signal processing and storage capabilities. An input signal is sampled and the samples are compared to a threshold to identify an impulse. The system analyzes the length of each impulse to dynamically adapt a memo... | 12/01/1998 |
