| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 324613000 | Noise | 74 |
| 20090079441 | ELECTRONIC CIRCUIT COMPRISING A DEVICE TO MEASURE PHASE NOISE OF AN OSCILLATING AND/OR RESONANT DEVICE - An electronic circuit includes several (at least two) oscillating and/or resonant devices. The circuit uses a measuring device to measure the phase noise of one of the two oscillating/resonant devices. This measuring device is integrated on a chip on which said oscillating/resonant device to be measured is also integrated. The circuits and methods described find application in the area of radiofrequency/high frequency electronics RF/HF, in particular adapted to general public applications in mobile communication systems and/or to metrology. | 03-26-2009 |
| 20090102490 | APPARATUS FOR PERFORMING A STRESS TEST TO ISOLATE AND MEASURE NOISE IN A PAIRED LINE AND METHOD FOR PERFORMING A STRESS TEST TO ISOLATE AND MEASURE NOISE IN A PAIRED LINE - The present invention provides a circuit for performing a stress test on a paired line. The circuit provides for first and second balanced outlet pathways for applying an AC signals to the paired line. Although each of these first and second balanced outlet pathways include balanced capacitors, the need to vet these capacitors in order to achieve proper operation of the circuit is eliminated. | 04-23-2009 |
| 20090134883 | DEVICE AND METHOD FOR TESTING A NOISE IMMUNITY CHARACTERISTIC OF ANALOG CIRCUITS - A method for testing a noise immunity characteristic of an analog circuit of an integrated circuit. The device includes: an analog circuit, an internal stable reference signal source, an internal power supply module connected to the analog circuit and adapted to receive, via first input, a high level voltage supply, the device is characterized by including: a signal modulator that is adapted to provide, during a test period, a noisy signal to a second input of the internal power supply module; whereas the internal power supply module is adapted to output a noisy power supply to the analog circuit, in response to the noisy signal; whereas device is adapted to output an output signal representative of a noise immunity characteristic of the analog circuit. The method includes: providing a high level supply voltage to a first input of an internal power supply module of an integrated circuit and receiving signals from the integrated circuit representative of the performance of the analog circuit. The method is characterized by providing, during a test period, a noisy signal to a second input of the internal power supply module; providing a noisy supply voltage to the analog circuit, by the internal power supply module, in response to the noisy signal; and evaluating a noise immunity characteristic of the analog circuit in response to the received signals. | 05-28-2009 |
| 20090278551 | CAPACITIVE SENSORS AND METHODS FOR REDUCING NOISE THEREIN - Embodiments of capacitive sensors ( | 11-12-2009 |
| 20100026316 | ELECTRONIC APPARATUS NOISE MEASUREMENT METHOD - Second and third ports of a network analyzer are individually connected via cables to predetermined connection points on a differential transmission circuit on an object to be measured. A differential cable is connected to the differential transmission circuit. An antenna for receiving an electromagnetic wave radiated from the differential cable is connected to a first port of the network analyzer via a first cable. The network analyzer measures a three-port S parameter of the first, second, and third ports and calculates common-mode and normal-mode components of noise radiated from the differential cable. As a result, the source of noise in an electronic apparatus can be determined, and common-mode noise and normal-mode noise can be separately measured. | 02-04-2010 |
| 20100060296 | Method and device for checking a sensor signal - Depending on a sensor signal, a noise signal which suppresses a useful signal spectrum of the sensor signal is determined by filtering using a filter. A noise variable, which is a measure of a noise of the sensor signal, is determined depending on the noise signal. An error of the sensor signal is identified depending on the noise variable determined. | 03-11-2010 |
| 20100127714 | Test system for flicker noise - A flicker noise test system includes a guarded signal path and an unguarded signal path selectively connectable to respective terminals of a device under test. The selected signal path is connectable a terminal without disconnecting cables or changing probes. | 05-27-2010 |
| 20100188103 | PULSE PERIOD MEASUREMENT METHOD - The effect of chattering on the measurement of the pulse period is reduced. The pulse period representing the rise interval of target pulses appearing in a pulse signal PI is measured. The pulse signal PI is sampled in synchronization with a measurement clock CLK. Measurement of a designated inhibition period is started in synchronization with the fall of the signal PI. Measurement of the current pulse period is completed and measurement of a new pulse period is started if the inhibition period has elapsed at the rise of the signal PI. Counting of the current pulse period is continued if the inhibition period has not elapsed. | 07-29-2010 |
| 20100194405 | NOISE MEASUREMENT SYSTEM IN POWER STABILIZATION NETWORK, VARIABLE FILTER APPLIED TO THE SAME, AND METHOD FOR MEASURING NOISE IN POWER STABILIZATION NETWORK - A noise measurement system in power stabilization network, a variable filter applied to the same and a method for measuring noise in power stabilization network are disclosed, wherein the system comprises: a power stabilization network including a power input unit for receiving an external power, a power output unit for supplying a power to a power line communication modem and an output unit for a measurement instrument; a filter connected to the power stabilization network; and an EMI (Electromagnetic Interference) measurer. | 08-05-2010 |
| 20100231233 | SYSTEMS AND METHODS FOR BUILT IN SELF TEST JITTER MEASUREMENT - An apparatus configured for built in self test (BIST) jitter measurement is described. The apparatus includes a time-to-voltage converter. The time-to-voltage converter generates a voltage signal proportional to timing jitter present in a clock/data signal input. The apparatus also includes feedback circuitry for the time-to-voltage converter. The feedback circuitry provides a ramp slope for the time-to-voltage converter. The apparatus further includes a calibration controller. The calibration controller provides control signals to the time-to-voltage converter for process-independent calibration. The apparatus also includes a sample-and-hold (S/H) circuit. The S/H circuit provides a set bias voltage to the time-to-voltage converter once calibration is complete. | 09-16-2010 |
| 20100283481 | SYSTEMS AND METHODS FOR CONDUCTING EMI SUSCEPTIBILITY TESTING - System and methods for performing EMI susceptibility testing of a device is disclosed. A system may include an EMI generation unit that includes a plurality of EMI generating devices, where each EMI generating device generates EMI having substantially similar characteristics relative to EMI generated by other EMI generating devices in the system. Each EMI generating device is controlled by a controller that is configured to emulate at least partly a live cellular network. | 11-11-2010 |
| 20100315098 | METHOD FOR DETERMINING AT LEAST ONE STATE VARIABLE OF AN ELECTRIC ARC FURNACE, AND ELECTRIC ARC FURNACE - In a method for determining a state variable of an electric arc furnace, especially for determining the level of the foamed slag ( | 12-16-2010 |
| 20100321035 | LOOP ELEMENT AND NOISE ANALYZER - There is provided a shield-structured loop element which can suppress noise via a silicon substrate and can be manufactured by a semiconductor process. The loop element includes: a first well of a first polarity that is formed on a substrate; a deep well of a second polarity that is formed below the first well; a ring-shaped second well of a second polarity that is formed on the deep well along an outer periphery of the deep well; a third well of the first polarity that is formed in an island area surrounded by the deep well and the second well; a looped conductor that is formed in a layer above the third well and has smaller outer dimensions than those of the third well; and a first path that connects the second well to a bias power supply. The second well and the deep well are electrically connected to each other. | 12-23-2010 |
| 20110025346 | POWER SUPPLY NOISE MEASURING CIRCUIT AND POWER SUPPLY NOISE MEASURING METHOD - A power-supply noise measuring circuit includes a voltage fluctuation detecting circuit, a unit time generating circuit: a current measuring circuit, and a sampling circuit. The voltage fluctuation detecting circuit generates a detection current in accordance with a voltage fluctuation of a power supply. The unit time generating circuit generates a unit time in accordance with a clock signal. The current measuring circuit treasures an amount of the detection current per unit time. The sampling circuit samples the amount of the detection current measured by the current measuring circuit, every unit time. The present invention provides the power-supply noise measuring circuit that has a small circuit area and enough accuracy. | 02-03-2011 |
| 20110043220 | METHOD AND APPARATUS FOR POWER SEQUENCE TIMING TO MITIGATE SUPPLY RESONANCE IN POWER DISTRIBUTION NETWORK - The transient load current of a circuit powered by a power distribution network is increased in a plurality of steps, with the step transition times being adjusted based on the transient noise of the power distribution network. This reduces the resonance noise that would otherwise occur in the supply current of the power distribution network. | 02-24-2011 |
| 20110181298 | MEASUREMENT APPARATUS AND TEST APPARATUS - Provided is a measurement apparatus that measures a signal under measurement input thereto, comprising a plurality of signal measurement circuits that measure a level of a signal input thereto, according to a sampling clock provided thereto; a noise measuring section that measures a noise component propagated from a first signal measurement circuit to a second signal measurement circuit, among the plurality of signal measurement circuits, based on a measurement result output by the second signal measurement circuit; and a clock supplying section that, when the signal under measurement is being measured, supplies the first signal measurement circuit and the second signal measurement circuit with sampling clocks having the same period and that, when the noise component is being measured, supplies the first signal measurement circuit and the second signal measurement circuit with sampling clocks having different periods. | 07-28-2011 |
| 20110298474 | IMPLEMENTING INTEGRAL DYNAMIC VOLTAGE SENSING AND TRIGGER - A method and circuit for implementing dynamic voltage sensing and a trigger circuit, and a design structure on which the subject circuits resides are provided. The voltage sensing circuit includes a first quiet oscillator generating a reference clock, and a second noisy oscillator generating a noisy clock. A digital control loop coupled to the first quiet oscillator and the second noisy oscillator matches frequency of the first quiet oscillator and the second noisy oscillator. The reference clock drives a first predefined-bit shift register and the noisy clock drives a second predefined-bit shift register, where the second predefined-bit shift register is greater than the first predefined-bit shift register. When the first predefined-bit shift register overflows, the contents of the second predefined-bit shift register are evaluated. The contents of the second predefined-bit shift register are compared with a noise threshold select value to identify a noise event and trigger a noise detector control output. | 12-08-2011 |
| 20120001643 | SENSING PHASE SEQUENCE TO SUPPRESS SINGLE TONE NOISE - A noise suppression method for a capacitance-to-voltage converter varies a sequence of sensing signal edges during a plurality capacitance measurements to produce a number of noise responses. The sensing signal edges are varied in a repetitive rising and falling edge pattern for each sequence. Three or more such sequences can be used, and the sequence with the highest noise is eliminated and the others are averaged. The noise suppression method can be implemented during calibration and then used for a number of normal acquisitions. The noise suppression method can be applied to capacitance-to-voltage converters having monitoring and integration phases. | 01-05-2012 |
| 20120119757 | Electronic Device and Noise Current Measuring Method - A noise current passing through a substrate on which an electronic component is mounted is suppressed in a housing, to provide a malfunction of an electronic device. A substrate ( | 05-17-2012 |
| 20120133375 | LIQUID-DISCHARGING DEVICE, INSPECTION METHOD OF LIQUID-DISCHARGING DEVICE, AND PROGRAM - To reduce erroneous inspection caused by particular noise occurring when plate-shaped electrodes are used, the invention is related to a liquid-discharging device in which a discharge judgment for judging whether or not a liquid has been discharged from a nozzle is performed on the basis of a change in electric potential occurring in at least one of a first electrode and a second electrode when the liquid has been discharged from the nozzle. The discharge judgment is performed continuously a plurality of times for the nozzle that is an inspection target. Even if the liquid is judged to have been discharged in any of the plurality of discharge judgments, the liquid will be determined not to have been discharged from the nozzle that is an inspection target as long as a judgment that the liquid has not been discharged has been made in any of the plurality of discharge judgments. | 05-31-2012 |
| 20120146665 | SYSTEM AND METHOD FOR DETERMINING POWER SUPPLY NOISE IN AN INTEGRATED CIRCUIT - A system for determining power supply noise in an integrated circuit includes a circuit system comprising a circuit element and a power delivery network, the power delivery network comprising at least one impedance, a channel formed by input and output portions of the circuit element, the channel having the impedance of the power delivery network, a signal source for providing an aggressor signal having a known spectrum to the input portion of the circuit element, and an analysis device for measuring the aggressor signal at the output portion of the circuit element, whereby the aggressor signal at the output portion of the circuit element is influenced by the impedance of the power delivery network and indicates power supply noise. | 06-14-2012 |
| 20120200303 | High Bandwidth Passive Switching Current Sensor - In an printed circuit board on which an integrated circuit die is mounted, an array of plated through holes (PTHs) are formed which include conductive power and ground PTH structures which are connected to provide power and ground reference voltages to the integrated circuit die, and isolated current sensing PTH structures which are formed within sensing proximity to the conductive power and ground PTH structures for sensing current switching activity in the conductive power and ground PTH structures by inductively converting dynamic current changes in the conductive power and ground PTH structures into a measurable voltage signal. | 08-09-2012 |
| 20120206154 | INPUT DEVICE INTERFERENCE DETERMINATION - An interference determining circuit for a capacitive sensor device comprises an amplifier, absolute differential circuitry, and comparator circuitry. The amplifier is configured for receiving a reference voltage at a first input and for receiving a resulting signal at a second input. The resulting signal is from a sensor electrode of the capacitive sensor device. The absolute differential circuitry is coupled with an output of the amplifier and configured for outputting a difference signal. The difference signal represents an absolute differential between currents utilized in the amplifier. The comparator circuitry is coupled with the absolute differential circuitry and configured for generating a non-linearity indication based on a comparison of the difference signal with at least one reference signal. | 08-16-2012 |
| 20120217980 | TEST DEVICE AND TEST METHOD FOR MEASURING A PHASE NOISE OF A TEST SIGNAL - A test device for measuring a phase noise of a test signal includes a delayer configured to delay the test signal to provide a delayed test signal, a first combiner, a second combiner, and a phase noise determinator. The first combiner is configured to combine a first signal with the delayed test signal to provide a first combiner output signal. The first signal is based on the test signal or a signal identical to the test signal. The second combiner is configured to combine a second signal with the delayed test signal, wherein the second signal is phase-shifted with respect to the first signal to provide a second combiner output signal. The second signal is based on the test signal. The phase noise determinator is configured to provide phase noise information that depends on the first combiner output signal and the second combiner output signal. | 08-30-2012 |
| 20120242349 | CAPACITANCE DETECTING DEVICE - A capacitance detecting device includes a detecting electrode to form a capacitance, an electrical current supply part to supply electrical current to the detecting electrode, and a control part to set different conditions of the electrical current supplied from the electrical current supply part to the detecting electrode, and judge a presence or absence of an electromagnetic noise at the detecting electrode based on an output value of the detecting electrode under the different conditions. | 09-27-2012 |
| 20120256638 | NOISE DETECTION FOR A CAPACITANCE SENSING PANEL - An embodiment of a method for detecting noise for a capacitance sensing panel may comprise generating an input signal based on a noise signal, performing a series of measurements for measuring capacitances from a capacitive sensor sensitive to the noise signal, and controlling timing for at least one of the subconversions based on the input signal. | 10-11-2012 |
| 20120256639 | APPARATUS COMPRISING A RECURSIVE DELAYER AND METHOD FOR MEASURING A PHASE NOISE - Embodiments of the invention provide an apparatus for measuring a phase noise of a test signal. The apparatus comprises a recursive delayer, a combiner and a phase noise determinator. The recursive delayer is configured to provide a delayed signal on the basis of the test signal. The combiner is configured to combine a first signal with a second signal to provide a combiner output signal. The first signal is based on the test signal or a signal identical to the test signal. The second signal is based on the delayed signal or a signal identical to the delayed signal. The phase noise determinator is configured to provide a phase noise information that depends on the combiner output signal. | 10-11-2012 |
| 20130002266 | HAND-HELD TEST METER WITH ELECTROMAGNETIC INTERFERENCE DETECTION CIRCUIT - A hand-held test meter for use with an analytical test strip in the determination of an analyte (such as glucose) in a bodily fluid sample (for example, a whole blood sample) includes a housing, a test meter control circuit block, and an electromagnetic interference detection circuit block with an antenna configured to sense electromagnetic fields of a predetermined frequency. The electromagnetic interference detection circuit block is configured to generate a signal representative of an electromagnetic field sensed by the antenna and to provide that signal to the test meter control circuit block. In addition, the test meter control circuit block is configured to interrupt operation of the hand-held test meter when the signal received from the electromagnetic interference detection circuit block is represents an electromagnetic field that interferes with the hand-held test meter's operation. | 01-03-2013 |
| 20130021041 | DETECTION AND GSM NOISE FILTERING - This document discusses, among other things, a GSM noise detection system configured to detect GSM noise at a pole of a four-pole audio jack using first and second comparators. The GSM noise detection system can include first and second comparators configured to compare a value of the pole to respective first and second thresholds and to provide an output indicative of the comparisons and a detection circuit configured to count changes in the output over a first period of time and to detect GSM noise at the pole of the four-pole audio jack using the count. | 01-24-2013 |
| 20130027058 | SIGNAL MEASURING SYSTEM, METHOD FOR ELECTRICALLY CONDUCTING SIGNALS AND A SIGNAL CABLE - The present invention relates to a signal measurement system ( | 01-31-2013 |
| 20130069670 | DIFFERENTIAL SIGNAL TRANSMISSION CABLE PROPERTY EVALUATING MECHANISM AND EVALUATING METHOD THEREFOR - A differential signal transmission cable property evaluating mechanism includes a substrate having a signal line pad to be connected with a signal line conductor of a differential signal transmission cable and a ground pad to be connected with a shield conductor of the differential signal transmission cable, a pressing member for pressing the signal line conductor to the signal line pad, a shield conductor holding sheet including an elastic insulating sheet and a metal foil provided over one side of the elastic insulating sheet, the shield conductor holding sheet provided for indirectly connecting the shield conductor and the ground pad to each other by contacting the metal foil with the shield conductor and the ground pad, and a clip for fixing the shield conductor holding sheet. | 03-21-2013 |
| 20130106436 | Touch Sensor With Measurement to Noise Synchronization | 05-02-2013 |
| 20130169291 | Capacitive Measurement System with Increased Robustness Against Electro-magnetic Interference - A method for capacitive sensing comprises the steps of tagging a transmitting signal by modulating a sub-carrier on said signal using state of the art modulation techniques; demodulating said subcarrier out of useful/received signal to prove validity of said signal. | 07-04-2013 |
| 20130169292 | METHOD OF ANALYZING COUPLING EFFECT BETWEEN SIGNAL LINES IN AN INTEGRATED CIRCUIT - second signal lines are selected among neighboring signal lines near a first signal line, such that the second signal lines have valid coupling capacitances with respect to the first signal line. Test signal patterns of the first signal line and the second signal lines are selected among real signal patterns according to a function of the integrated circuit. At least one of a coupling noise and a coupling transition delay of the first signal line is calculated based on the test signal patterns. | 07-04-2013 |
| 20130193984 | TEST APPARATUSES FOR MEASURING ELECTROMAGNETIC INTERFERENCE OF IMAGE SENSOR INTEGRATED CIRCUIT DEVICES - A test apparatus for measuring electromagnetic interference (EMI) of an image sensor integrated circuit (IC) device may include an EMI test jig configured to drive a mounted image sensor IC device on one or more test conditions; an electromagnetic (EM) shielding box configured to shield external EM waves from other directions except an upper direction, the EM shielding box accepting the EMI test jig; an EM emission sensing probe configured to sense EM emissions from the image sensor IC device, the EM emission sensing probe being separated from and adjacent to the image sensor IC device in the upper direction when sensing EM emissions; and a spectrum analyzer configured to connect to the EM emission sensing probe, the spectrum analyzer configured to evaluate the EM emissions from the image sensor IC device. | 08-01-2013 |
| 20130221987 | STATIC NOISE MARGIN MONITORING CIRCUIT AND METHOD - A monitoring circuit and method, wherein a voltage waveform having a linear falling edge is applied to a first node of at least one test memory cell (e.g., a plurality of test memory cells connected in parallel). The input voltage at the first node is captured when the output voltage at a second node of the test memory cell(s) rises above a high reference voltage during the falling edge. Then, a difference is determined between the input voltage as captured and either (1) the output voltage at the second node, as captured when the input voltage at the first node falls below the first reference voltage during the falling edge, or (2) a low reference voltage. This difference is proportional to the static noise margin (SNM) of the test memory cell(s) such that any changes in the difference noted with repeated monitoring are indicative of corresponding changes in the SNM. | 08-29-2013 |
| 20130293243 | Diagnosis of Physical-Layer Bus Parameters in a Filling Level Measuring Device - At least one physical layer parameter of a field bus signal is determined by a filling level measuring device, a pressure measuring device or a flow measuring device. Based on the at least one determined physical layer parameter, a status report is transmitted to an external device. No external diagnosis tool is necessary. | 11-07-2013 |
| 20130314103 | RECEIVING APPARATUS FOR TEST SIGNAL, ELECTRONIC APPARATUS THEREFOR AND SIGNAL RECEIVING METHOD THEREOF - A receiving apparatus for a test signal provided on a transmission line in which alternating-current coupling is achieved includes a detection circuit configured to determine whether or not a signal amplitude of the transmission line is more than or equal to a reference value, a control circuit configured to control the detection circuit to be in an active state during a connection test for the transmission line, and a reproduction circuit configured to reproduce a transmission waveform from a transmission apparatus on the transmission line on a basis of a determination result of the signal amplitude in the detection circuit when the signal amplitude changes from a value less than the reference value to a value more than the reference value and further the signal amplitude changes from a value more than the reference value to a value less than the reference value. | 11-28-2013 |
| 20130335103 | LINE IMPEDANCE STABILIZATION NETWORK - A line impedance stabilization network (LISN) includes a power port for connecting to a power supply, an equipment under test (EUT) connection port for connecting to an EUT, and a first inductor connected between the power port and the EUT connection port. The coil includes a first end, an opposite second end, a wire connected between the first end and the second end, and a first resistor. The wire includes a plurality of coils, and the first resistor is connected between two different coils of the wire. | 12-19-2013 |
| 20140021964 | Measuring System - A measuring system for measuring signal characteristics on a node is disclosed. The measuring system includes a contact measuring unit including a probe for contacting the node to fetch a signal on the node, an output interface, a plurality of capacitors coupled between the probe and the output interface where a capacitance of each capacitor corresponds to a frequency range, and a protection circuit, of which one terminal coupled between the probe and the output interface and the other terminal coupled to a ground terminal, and a frequency analyzer coupled to the output interface for displaying information of amplitude vs. frequency of a signal outputted from the output interface to measure the signal characteristic on the node. | 01-23-2014 |
| 20140062502 | METHOD FOR IDENTIFYING EMI SOURCES IN AN ELECTRICAL SYSTEM - A method for identifying EMI sources in a system having a plurality of electrical components connected together by cables wherein each set of two electrical components connected by a cable forms a potential EMI source. A plurality of antennas are positioned around the vehicle and the EMI from each antenna is measured over a plurality of frequencies and the frequencies having an EMI greater than a predetermined threshold and a measurement profile of the received EMI versus the antennas for each of the identified frequencies is created. EMI reception is then simulated for each potential EMI source and a simulation profile of the received EMI versus the antennas is plotted for each potential EMI source. The actual source of the EMI is then identified by comparing the measurement profile with the simulation profile for the potential EMI sources at each frequency to determine a match of the profiles. | 03-06-2014 |
| 20140118005 | MECHANICAL COMPONENT AND MANUFACTURING METHOD FOR A MECHANICAL COMPONENT - A mechanical component has: a mounting; a movable part which, with the aid of at least one first spring and one second spring, is connected to the mounting in such a way that the movable part is movable about a rotational axis extending through a first anchoring area of the first spring on the mounting and a second anchoring area of the second spring on the mounting; a first sensor device with at least one first resistor which is situated on and/or in the first spring; and a second sensor device with at least one second resistor situated on and/or in the second spring. The first sensor device includes a first Wheatstone half bridge and the second sensor device includes a second Wheatstone half bridge. The first and second Wheatstone half bridges are connected to form a Wheatstone full bridge. | 05-01-2014 |
| 20140132282 | DEVICE AND METHOD FOR EMI SOURCE LOCATION - An electronics device, comprising one or more circuit boards and a plurality of power converters on one or more of said circuit boards, each power converter comprising one or more transducers for measuring a voltage or a current in the power converter, the electronics device additionally comprising a sub-system for locating sources of electromagnetic interference. The transducers of two or more of the power converters are also connected to the sub-system for locating sources of electromagnetic interference to supply it with measurement data. The sub-system for locating sources of electromagnetic interference is arranged to use the measurement data from the transducers in order to locate sources of electromagnetic interference. | 05-15-2014 |
| 20140167782 | ELECTROMAGNETIC INTERFERENCE MEASURING DEVICE AND ELECTROMAGNETIC INTERFERENCE MEASURING METHOD - Provided is an electromagnetic interference (EMI) measuring device. The EMI measuring device according to the present invention includes an electromagnetic wave eliminating unit eliminating remaining electromagnetic waves from a DUT in response to an eliminating control signal of the control unit. The control unit may calculate EMI of the DUT on the basis of a measured result measured before the elimination of remaining electromagnetic waves. The EMI measuring device according to the present invention may compensate for an error due to remaining electromagnetic waves and measure EMI at high accuracy. | 06-19-2014 |
| 20140218048 | NOISE SENSOR - The present invention relates to a noise sensor for an alternating or direct current power supply. The sensor comprises a noise sensing unit and a noise separator. The noise separator is configured to receive first, second and third input signals and provide a first output signal representative of the common mode noise and a second output signal representative of the differential mode noise. The noise sensing unit comprises a first capacitive element, a second capacitive element, a first resistive element and a second resistive element. | 08-07-2014 |
| 20140239977 | CAPACITIVE SENSING - A capacitive sensing system includes a controller, a node connected to one side of a capacitance, the controller configured to measure the capacitance by measuring a time for a voltage across the capacitance to reach a predetermined reference voltage, a noise measurement circuit configured to measure electrical noise on the node, and the controller receiving the measurement of noise from the noise measurement circuit. | 08-28-2014 |
| 20140247059 | MEASUREMENT DEVICE AND ASSOCIATED METHOD FOR USE IN FREQUENCY SELECTION FOR INGROUND TRANSMISSION - A portable device and associated method are described for use with a system in which a locating signal is transmitted from within the ground during an operational procedure. The locating signal includes a transmission frequency that is selectable from a group of discrete transmission frequencies in a frequency range and the region includes electromagnetic noise that can vary. The portable device includes a receiver having a bandwidth that includes the transmission frequency range and is operable for measuring the electromagnetic noise in the transmission frequency range to establish a frequency content of the electromagnetic noise for use in selecting one of the discrete transmission frequencies that is subsequently transmitted as the locating signal during the operational procedure. The locating signal can be transmitted from a boring tool, a pullback arrangement or an inground cable. A predicted maximum operational depth for a transmitter can be determined prior to the operational procedure. | 09-04-2014 |
| 20140292353 | LINE IMPEDANCE STABILIZATION NETWORK - A line impedance stabilization network (LISN) able to withstand high currents includes a power port for connecting to a power supply, an equipment under test (EUT) connection port for connecting to an EUT, and a first inductor connected between the power port and the EUT connection port. The coil includes a first end, an opposite second end, a coiled wire connected between the first end and the second end, and a first and a second resistor. The wire includes a plurality of coils, and the first and second resistors bridge between the starting coil (in each direction) of the coil of wire and two inboard coils of the coil of wire. | 10-02-2014 |
| 20140306720 | Using a Shared Local Oscillator to Make Low-noise Vector Measurements - Measurements, e.g. S-parameter measurements may be performed by obtaining a complex ratio of at least two signals, using a single signal-receiver while eliminating noise problems traditionally associated with single receiver systems. A Vector Signal Generator (VSG) may be used to generate the input stimulus (signal), making it possible to share the local oscillator (LO) signal of the VSG with a single vector receiver, such that the phase noise of the LO signal is common to both the VSG and the vector receiver. When the stimulus signal from the VSG is observed with the vector receiver, the LO phase noise is unobservable, resulting in a significant reduction of the phase noise in the measured signals in both the numerator and the denominator, which in turn leads to a significant reduction in the phase noise of the ratio while retaining the benefits of a simple, single receiver. | 10-16-2014 |
| 20140312918 | APPARATUS, METHOD AND SYSTEM FOR RANDOM NUMBER GENERATION - Techniques and mechanisms for generating a random number. In an embodiment, a first signal is received from a first cell including a first source follower transistor. Circuit logic detects for a pulse of the first signal and, in response to the pulse, generates a signal indicating detection of a first random telegraph noise event in the first source follower transistor. In another embodiment, a first count update is performed in response to the indicated detection of the first random telegraph noise event. The first count update is one basis for generation of a number corresponding to a plurality of random telegraph noise events. | 10-23-2014 |
| 20140368217 | Noise Equivalent Circuit - Provided is a noise equivalent circuit required for completing an EMC analysis in a practical time and through a low-cost calculation process at an upstream stage of system design. According to the present invention, the noise equivalent circuit comprises: one or more energy sources; a propagation path for propagation of energy from the energy source including a conductive path such as a cable and an electromagnetic field coupling path due to the coupling of an electric field and a magnetic field with another electronic device or cable; and a GND port connected to a system, and is characterized in that each port is represented by the noise voltage source or the noise current source and the internal impedance. This noise equivalent circuit can be used to determine an external impedance that is varied depending on a load connected externally or the distance from an external device or a cable, whereby the noise of the system as a whole can be analyzed (see FIG. | 12-18-2014 |
| 20150008940 | CLOCK JITTER AND POWER SUPPLY NOISE ANALYSIS - Disclosed are a method, system, and/or apparatus to perform clock jitter and power supply noise analysis. In one embodiment, a method may include receiving a first signal, which may be a clock signal, then generating a second signal based on the first signal. The method may further include delaying the second signal by a base delay and/or a series of fine delays. The method may also include taking measurements of the delayed second signal and comparing those measurements to theoretical measurements of the second signal that would occur if the first signal were noise-free. The method may further include determining, based on the measurements and the comparison thereof, whether noise is present, whether the noise is high frequency or low frequency noise, and whether the noise is due to clock jitter and/or power supply deviations. | 01-08-2015 |
| 20150028888 | METHOD AND SYSTEM FOR IDENTIFYING AN ELECTRICAL NOISE PROPAGATION PATH - A system and method for identifying an electrical noise propagation path through an object, such as an automotive vehicle, from a source of periodic electrical noise. An electrical noise sensor is positioned at a selected area on the object which generates an output signal representative of the magnitude of the electrical noise. A trigger generator generates a trigger signal in synchronism with a source of periodic electrical noise and that trigger signal is connected as an input signal to measurement equipment connected to the sensor to initiate electrical noise reading by the sensor. A recorder then records the output from the sensor. The electrical noise sensor is moved to different areas on the object to determine the electrical noise propagation path. | 01-29-2015 |
| 20150097578 | DATA MEASUREMENT METHODS AND SYSTEMS - Methods are described for measuring data in a test setup including an impedance tuner. In an exemplary embodiment, the data is data for measuring noise parameters. The data is measured versus a sweep parameter for one tuner state at a time. | 04-09-2015 |
| 20150123677 | Handling of electromagnetic interference in an electronic apparatus - The present invention provides a control module and a method operable in a touch-sensitive apparatus for measuring noise, wherein the touch-sensitive apparatus comprises a touch-sensitive module having a plurality of first electrodes and a plurality of second electrodes that intersect in multiple regions of the touch sensitive module, said method comprising the steps of: disconnecting the first electrodes from a driving voltage source; and acquiring a plurality of voltage values of noise by measuring a plurality of voltage signals associated with the second electrodes over a plurality of measurement cycles at a predetermined operating frequency during the first electrodes without a driving voltage. | 05-07-2015 |
| 20150301096 | ELECTRONIC DEVICES AND METHODS FOR ADDRESSING EXTERNAL ELECTROMAGNETIC FIELDS - An electronic device may include a shaft insertable into a target area, and an electronic component configured to generate a signal. The electronic component may be on or within the shaft. The electronic device may also include at least one antenna on or within the shaft. The electronic device may also include a receiver operatively coupled to the antenna. The receiver may monitor an electrical characteristic of the antenna to identify an effect of an electromagnetic field on the electrical characteristic of the antenna. The electronic device may also include a processor communicatively coupled to the receiver. At least one of the receiver and the processor may predict an effect of the electromagnetic field on the signal generated by the electronic component, based at least in part on the effect of the electromagnetic field on the electrical characteristic of the antenna. | 10-22-2015 |
| 20150338448 | NOISE DETECTION DEVICE, SYSTEM AND METHOD - A noise detection device, system, and a method of detecting noise signals are disclosed. The noise detection device includes a drive circuit, a sense circuit and a controller. The drive circuit drives a plurality of drive lines having a first polarity pattern and a second polarity pattern, wherein an operation of the first polarity pattern and the second polarity pattern substantially equals zero over a predetermined time period. The sense circuit senses a plurality of sense signals from at least one sense line during the predetermined time period. The controller derives a magnitude of a noise signal from the at least one sense line according to the sense signals. | 11-26-2015 |
| 20150346254 | NOISE IMMUNITY EVALUATION APPARATUS, METHOD OF EVALUATING NOISE IMMUNITY, AND NON-TRANSITORY COMPUTER READABLE MEDIUM - A noise immunity evaluation apparatus measures S parameters of a device including a pair of input signal ports, a pair of output signal ports, and a noise signal port for input of a noise signal; calculates, as an evaluation index, a difference between S parameters between the noise signal port and the pair of input signal ports or between the noise signal port and the pair of output signal ports; acquires a first frequency spectrum obtained by performing a fast Fourier transform on a voltage waveform obtained by performing an electromagnetic field analysis on the noise signal, and calculates a second frequency spectrum as a product of the first frequency spectrum and the evaluation index; and extracts a frequency with a local maximum voltage value in the second frequency spectrum as a frequency for evaluation of noise immunity. | 12-03-2015 |
| 20150377944 | ELECTRONIC APPARATUS PREVENTING ERRONEOUS DETECTION OF SENSOR OUTPUT DUE TO AC LINE NOISE AND ERRONEOUS DETECTION PREVENTION METHOD - Provided is an electronic apparatus that can prevent erroneous detection of a sensor output due to an AC line noise. A power supply circuit includes a noise filter, input rectifying smoothing circuit, converter circuit, and output smoothing circuit. The input rectifying smoothing circuit rectifies an input AC voltage passed through the noise filter to a pulsating flow and then smooth it. The converter circuit converts a DC voltage rectified and smoothed into a desired output voltage. The output smoothing circuit smoothes the convert output voltage to supply it to a control part. The noise determination part detects a noise that could not have been removed by the noise filter, as an AC line noise. The control part invalidates a detection signal outputted from the sensor for a previously set invalid period from the moment the AC line noise has been detected. | 12-31-2015 |
| 20160061871 | NOISE DETECTION CIRCUIT - A noise detection circuit | 03-03-2016 |
| 20160146881 | DEVICE TESTING AND MONITORING METHOD THEREOF - Some embodiments of the present disclosure provide a method including turning on a noise-measuring system for a device under test (DUT) with the DUT turned off; measuring a first phase noise caused by the noise-measuring system; turning on the DUT; measuring a second phase noise caused by the noise-measuring system and the DUT; and subtracting the first phase noise from the second phase noise to obtain a third phase noise caused by the DUT. | 05-26-2016 |
| 20160154043 | DETECTING ACTUATION OF ELECTRICAL DEVICES USING ELECTRICAL NOISE OVER A POWER LINE | 06-02-2016 |
| 20160202300 | CONTROLLING CLOCK MEASUREMENT WITH TRANSISTORS, CAPACITOR, OPAMP, ADC, EXTERNAL ENABLE | 07-14-2016 |
| 20160377669 | ON-CHIP TEST CIRCUIT FOR MAGNETIC RANDOM ACCESS MEMORY (MRAM) - Embodiments include a test circuit to test one or more magnetic tunnel junctions (MTJs) of a magnetic random access memory (MRAM). The test circuit may measure a 1/f noise of the MTJ in the time domain, and determine a power spectral density (PSD) of the 1/f noise. The test circuit may estimate one or more parameters of the MTJ and/or MRAM based on the PSD. For example, the test circuit may determine a noise parameter, such as a Hooge alpha parameter, based on the PSD, and may estimate the one or more parameters of the MTJ and/or MRAM based on the 1/f parameter. Other embodiments may be described and claimed. | 12-29-2016 |
| 20180024177 | SYSTEM AND METHOD FOR MEASURING WIDEBAND NOISE PARAMETERS USING AN IMPEDANCE GENERATOR | 01-25-2018 |
| 20180024178 | ELECTRONIC COMPONENT CLASSIFICATION | 01-25-2018 |
| 324614000 | Signal to noise ratio or noise figure | 8 |
| 20080297172 | Method for Measuring the Noise Figure of a Device Under Test with a Network Analyser - A method for measuring the noise factor (F | 12-04-2008 |
| 20100156437 | Apparatus and Methods of Demonstrating Cabling Performance in Real Time - Provided are apparatus and methods for demonstrating cable performance in real time. An apparatus may include a cable bundle of multiple disturber cables and a test cable arranged proximate one another, each coupled between a pair of data transceivers. A data loading device is configured to generate data for transmission across at least one of the disturber cables and the test cable, and a transmission data analyzer is configured to analyze data transmission performance of the test cable. | 06-24-2010 |
| 20110043221 | Method and Device for Dynamic Adjustment of Network Operating Voltage - The present invention is to provide a method and device of dynamically adjusting the operating voltage of a network integrated circuit including the steps of detecting and ranking the signal-to-noise ratio of N ports to single out a port for arbitration, dynamically controlling the operating voltage according to the signal-to-noise ratio of the port for arbitration, decreasing the operating voltage by a voltage unit when the signal-to-noise ratio of the port for arbitration is greater than a first threshold, increasing the operating voltage to a default operating voltage when the signal-to-noise ratio of the port for arbitration is smaller than the first threshold, decreasing the operating voltage by a voltage unit when the signal-to-noise ratio of the port for arbitration is greater than a second threshold, and increasing the operating voltage by a voltage unit when the signal-to-noise ratio of the port for arbitration is smaller than the second threshold. | 02-24-2011 |
| 20130093433 | Integrated Circuit Having Receiver Jitter Tolerance ("JTOL") Measurement - An integrated circuit capable of on-chip jitter tolerance measurement includes a jitter generator circuit to produce a controlled amount of jitter that is injected into at least one clock signal, and a receive circuit to sample an input signal according to the at least one clock signal. The sampled data values output from the receiver are used to evaluate the integrated circuit's jitter tolerance. | 04-18-2013 |
| 20130099797 | Variable Impedance Device - A variable impedance device includes a passive tuner that includes at least one variable component, which is controllable to apply a variable impedance value to an input signal of the passive tuner. A low noise amplifier is configured to supply the input signal to the passive tuner by amplifying an input RF (radio frequency) signal. | 04-25-2013 |
| 20130214795 | Chemical Sensor Array with Leakage Compensation Circuit - To reduce the pixel size to the smallest dimensions and simplest form of operation, a pixel may be formed by using only one ion sensitive field-effect transistor (ISFET). This one-transistor, or 1T, pixel can provide gain by converting the drain current to voltage in the column. Configurable pixels can be created to allow both common source read out as well as source follower read out. A plurality of the 1T pixels may form an array, having a number of rows and a number of columns and a column readout circuit in each column. | 08-22-2013 |
| 20140118006 | COMMUNICATION APPARATUS AND ASSOCIATED ESTIMATION METHOD - A communication apparatus and an associated estimation method are provided. The communication apparatus is electrically connected to a loading terminal and operates at a common bias voltage. The communication apparatus includes a transmitter, a connector, and a receiver. The connector includes a bridging circuit and a measurement circuit. The bridging circuit has a positive measurement end and a negative measurement end. The transmitter transmits an analog output signal. The receiver receives a common bias voltage during an estimation process. During the estimation process, the measurement circuit estimates a positive loading resistance and a negative loading resistance corresponding to the loading terminal according to a voltage difference between the common bias voltage and voltage at one of the positive measurement end and the negative measurement end. | 05-01-2014 |
| 20150309101 | NOISE FIGURE MEASUREMENT USING NARROWBAND COMPENSATION - A method of determining a noise figure (NF) response of a device under test (DUT) comprises determining a frequency response of a noise receiver over a first frequency range, measuring a gain of the DUT over a second frequency range encompassing the first frequency range, measuring output-noise power of the DUT over the second frequency range, determining an estimated gain of the DUT based on the frequency response of the noise receiver and the gain of the DUT over the first frequency range, and determining the NF response of the DUT over the second frequency range based on the estimated gain and the output-noise power. | 10-29-2015 |
