| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 324227000 | Plural tests | 10 |
| 20090021249 | CORE-LESS CURRENT SENSOR - Core-less current sensor comprises two parallel conductors carrying equal currents in the same direction. The magnetic field in mid location of the two parallel conductors carrying equal currents in the same direction for all current magnitudes is zero in absence of an external magnetic interference. Sum of magnetic fields in two points equidistant from the mid location on both the sides is zero as magnetic fields at these points are equal in magnitude and opposite in polarity for all current magnitudes and for equal amount of currents flowing through both conductors in same direction in absence of an external magnetic interference. Two sensing elements can be arranged between the two parallel conductors for sensing the magnetic field due to currents flowing through them for the purpose of current measurement. Sensor output is the difference between two outputs measured by the sensing elements. Outputs of sensing elements can vary due to external interference. As variation in the outputs of sensing elements due to external interference gets cancelled in sensor output, automatic external field compensation can be achieved. | 01-22-2009 |
| 20090102470 | SIMULATION METHOD IMPLEMENTED BY COUPLING ELECTROMAGNETIC FIELD ANALYSIS METHOD AND CIRCUIT ANALYSIS METHOD TOGETHER, SIMULATION APPARATUS, AND COMPUTER-READABLE MEDIUM STORING SIMULATION PROGRAM - A simulation apparatus according to an embodiment performs an electromagnetic field circuit coupling analysis on a first substrate and a second substrate electrically coupled via a circuit element having a finite delay time. A first coupling analysis unit carries out a time domain electromagnetic field analysis and also a circuit analysis on a circuit element at a first analytical domain including the first substrate. The second coupling analysis unit carries out a time domain electromagnetic field analysis and also a circuit analysis on a circuit element at a second analytical domain including the second substrate. A cable internal state analysis unit carries out a circuit analysis on a circuit element, employing an electromagnetic field value obtained at the first coupling analysis unit at one terminal of the circuit element connecting the first substrate and the circuit element, and an electromagnetic field value obtained at the second coupling analysis unit at another terminal of the circuit element connecting the second substrate and the circuit element. | 04-23-2009 |
| 20120092004 | DETECTION METHOD AND DETECTOR OF A DISRUPTION, POSITIONING METHOD AND SYSTEM USING SAID METHOD - This method for detecting a disturber of magnetic field amplitude comprises:
| 04-19-2012 |
| 20130335074 | Magnetic Field Sensors and Related Techniques That Can Provide Self-Test Information - Magnetic field sensor and related techniques can identify passing conditions, failing conditions, and marginal conditions of a sensed object. The magnetic field sensor and techniques can use one or more peak values of a proximity signal representative of proximity of the object, DC offset values of the proximity signal, or threshold values related to an amplitude of a signal representative of the proximity signal to identify the conditions. | 12-19-2013 |
| 20140210459 | METHOD AND DEVICE FOR ACQUIRING AT LEAST ONE SIGNAL - A method for acquiring at least one signal transmitted via an electric conductor, wherein an electric and/or magnetic field of the conductor is acquired at at least two identical or different positions relative to a longitudinal coordinate of the conductor, thus obtaining two measurement signals corresponding to the respective positions, and the signal transmitted via the conductor is inferred from the measurement signals. | 07-31-2014 |
| 20140253108 | METHOD AND SENSOR FOR SENSING CURRENT IN A CONDUCTOR - A sensor comprises an inductor for sensing an alternating current signal component of an observed signal. The inductor comprises a substrate, conductive traces associated with different layers of the substrate, and one or more conductive vias for interconnecting the plurality of conductive traces. A magnetic field sensor senses a direct current signal component of the observed signal. A first filtering circuit has a high-pass filter response. The first filtering circuit is coupled to the inductor to provide a filtered alternating current signal component. A second filtering circuit has a low-pass filter response. The second filtering circuit coupled to the magnetic field sensor to provide a filtered direct current signal component. A sensor fusion circuit determines an aggregate sensed current based on the filtered alternating current signal component and the filtered direct current signal component. | 09-11-2014 |
| 20140253109 | METHOD AND SENSOR FOR SENSING CURRENT IN A CONDUCTOR - A sensor comprises primary ferrite members spaced apart from the magnetic field sensor on opposite sides of the magnetic field sensor concentrate or steer an orientation of a magnetic field of the observed signal toward a target area of the magnetic field sensor. A magnetic field sensor senses a direct current signal component or lower frequency component of the observed signal. A first filtering circuit has a high-pass filter response. The first filtering circuit is coupled to the inductor to provide a filtered alternating current signal component. A second filtering circuit has a low-pass filter response. The second filtering circuit coupled to the magnetic field sensor to provide a filtered direct current signal component. A sensor fusion circuit determines an aggregate sensed current based on the filtered alternating current signal component and the filtered direct current signal component. | 09-11-2014 |
| 20140266170 | MAGNETOMETER USING MAGNETIC MATERIALS ON ACCELEROMETER - A MEMS device including a first proof mass, a first magnetized magnetic material disposed partially on a surface of the first proof mass, a first spring anchored to a substrate to support the first proof mass, and a first sensing element coupled to the first proof mass and operable to sense the motion of the first proof mass caused by an ambient acceleration. The MEMS device further includes a second sensing element coupled to the first proof mass and operable to sense the motion of the first proof mass caused by an ambient magnetic field | 09-18-2014 |
| 20160076871 | MEASURING PROBE FOR MEASURING THE THICKNESS OF THIN FILMS - The invention relates to a measuring probe for measuring the thickness of thin films, comprising a housing ( | 03-17-2016 |
| 20160187520 | SYSTEMS, METHODS, AND APPARATUS FOR DETECTING FERROMAGNETIC FOREIGN OBJECTS IN A PREDETERMINED SPACE - One aspect of the disclosure provides apparatus for detecting an object. The apparatus comprises a sense coil. The apparatus comprises a processor configured to determine an amount of change in a reactance of the sense coil from a previous reactance value for the sense coil. The processor is configured to determine an amount of change in a resistance of the sense coil from a previous resistance value for the sense coil. The processor is configured to determine a presence of the object based on a relationship between the amount of change in the reactance of the sense coil and the amount of change in the resistance of the sense coil. The processor performs an inverse tangent operation on a quotient of the amount of change in the reactance of the sense coil divided by the amount of change in the resistance of the sense coil. | 06-30-2016 |
