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| Number | Title | Issue Date |
| 7671606 | Portable line impedance measurement method and system A technique is disclosed for determining capacitive, inductive, and resistive components of power line impedance via a portable line impedance measurement system. The measurement system includes a circuit that switches a burden resistor between power line conductors... | 03/02/2010 |
| 7616010 | Line impedance measurement method and system A technique is disclosed for determining capacitive, inductive, and resistive components of power line impedance. A measurement circuit switches a burden resistor between power line conductors to cause a droop in a voltage waveform. The voltage waveform is sampled p... | 11/10/2009 |
| 7385405 | Capacitance probe for thin dielectric film characterization A capacitance probe for thin dielectric film characterization provides a highly sensitive capacitance measurement method and reduces the contact area needed to obtain such a measurement. Preferably, the capacitance probe is connected to a measurement system by a tra... | 06/10/2008 |
| 7348890 | Pest control techniques A pest control system (20) includes pest control devices (110) installed about an area or building (22). These devices (110) each include a bait member and a communication circuit. The communication circuit may be in the form of a passive... | 03/25/2008 |
| 7347101 | Measuring strain in a structure using a sensor having an electromagnetic resonator The system (10) comprises a sensor (18) 90×90×90×30 mm as an electromagnetic microwave cavity (20) with a coupler (22) with a wire (40) and an antenna (42). Cavity (20) produces a response signal (26) in res... | 03/25/2008 |
| 7334791 | Electronic die An ostensibly solid electronic die presents visual and/or sound effects when in use. Unlike known electronic dice, the disclosed electronic die retains the weight, feel and ruggedness of conventional non-electronic dice. The die includes an outer shell defining its ... | 02/26/2008 |
| 7259672 | Contactless identification tag A contactless identification tag includes a capacitor and an electrostatic capacity variable device that varies an electrostatic capacity of the capacitor according to an externally applied compression force. ... | 08/21/2007 |
| 7260500 | Method and apparatus for monitoring and verifying equipment status An equipment status monitoring system having at least one multi-modal resonator included as a part of a semiconductor processing system and a power source coupled to the at least one multi-modal resonator. The power source is configured to produce a microwave excita... | 08/21/2007 |
| 7248165 | Method and apparatus for multiple frequency RFID tag architecture The present invention provides a multi-band, multi-mode RFID tag that uses a single antenna structure and integrated circuit to provide asset location information at any stage of a supply chain. The unified tag design operates at multiple frequencies (or bands) usin... | 07/24/2007 |
| 7245130 | Method and apparatus for diagnosing motor damping network integrity An apparatus for diagnosing motor damping network integrity, the motor damping network configured for selective short-circuiting of the windings of a motor in a motor control system. The apparatus includes a motor controller with a motor drive portion thereof electr... | 07/17/2007 |
| 7243854 | Anti-intrusion smart card A smart card includes: a plastic body, a module integral with the body and including a support bearing external electric connection pads, at least one electronic chip borne by the support and having one side called active surface bearing internal electric connection... | 07/17/2007 |
| 7236092 | Passive sensor technology incorporating energy storage mechanism A passive sensor system having the capacity to respond to a variety of stimuli in the form of pulses of a specified frequency. The system includes a sensor operatively connected to an LC circuit characterized by a quality factor (Q) of less than 200, and a high Q re... | 06/26/2007 |
| 7221275 | Tuneable wireless tags using spatially inhomogeneous structures Wireless tags with a plurality of non-equivalent current pathways altered to collectively represent encoded information, each of which responds differently to an interrogation signal. The element is subjected to a signal stimulating the current pathways, each of whi... | 05/22/2007 |
| 7168150 | Method of making a resonant frequency tag A method of making a resonant frequency tag which resonates at a predetermined frequency. The method involves providing a first conductive pattern having an inductive element and a first land and a second conductive pattern having a second land and a third land whic... | 01/30/2007 |
| 7167074 | Integrated planar flyback transformer Method and apparatus are provided for fabricating a planar transformer assembly for use in an implantable medical device. The planar transformer assembly includes a board, a first core, and a second core. The board has a first side, a second side, and an embedded wi... | 01/23/2007 |
| 7167093 | Method of steering capacitor fields for use in capacitive sensing security systems The present invention provides a capacitive sensing apparatus having utility in object detection security applications whereby the object detection field generated by the apparatus is made steerable. The apparatus includes a power source having a ground connection i... | 01/23/2007 |
| 7164275 | AC power line impedance monitoring method and system A technique for determining inductive and resistive components of power line impedance. A measurement circuit switches a burden or drain resistor between power line conductors to cause a droop or sag in a voltage waveform. The voltage waveform is sampled prior to in... | 01/16/2007 |
| 7147604 | High Q factor sensor A sensor for wirelessly determining a physical property within a defined space comprises an electrical resonance and has a high quality factor Q. The quality factor Q is sufficiently high that a signal generated by the sensor can be received outside the defined spac... | 12/12/2006 |
| 7114092 | Method of supplying a required clock frequency by a clock generator module through interface communication with a mainboard A clock generator module is disclosed. A clock generator module, electrically connected with a mainboard through a connector for communicating with each other, wherein an interface definition of the clock generator communicates with a control logic circuit of the ma... | 09/26/2006 |
| 7076858 | Method for controlling resonant tag frequency A method of making a resonant frequency tag having a predetermined frequency comprises forming a first conductive pattern comprising an inductive element and a first land having a first end connected to an inductive element end, and a second end spaced a predetermin... | 07/18/2006 |
| 7078304 | Method for producing an electrical circuit An electrical circuit is formed by forming and patterning a conductive layer on a substrate, forming and patterning a conductive layer on another substrate, depositing a dielectric layer on at least a portion of one of conductive layers, mounting an integrated circu... | 07/18/2006 |
| 7049751 | Termination of secondary frequencies in RF power delivery There is provided a secondary reactive termination circuit connected between the output of the RF power generator and the input of the plasma chamber to allow the tight regulation or limiting of the voltage and current components of the secondary frequencies within ... | 05/23/2006 |
| 7027039 | Computer system with passive wireless mouse A passive wireless mouse and reader combination comprises a source of an interrogating field and a wireless mouse having a movable XY encoder, a plurality of mouse control buttons, at least one antenna, and one or more passive transponder circuits coupled to the at ... | 04/11/2006 |
| 7025259 | Device for customizing and dispensing contactless smart tickets A device for the customization and automatic dispensing of single smart contactless tickets provided with a device to check the reliability of tickets and a device to customize the tickets, and including a storage location for tickets in the form of a vertical stack... | 04/11/2006 |
| 6993812 | Method of manufacturing the piezoelectric transducer Inner individual electrodes are formed at intervals on a piezoelectric ceramic layer so as to correspond in a one-to-one relationship with ink channels, and an inner common electrode are formed on another piezoelectric ceramic layer. The required number of piezoelec... | 02/07/2006 |
| 6987453 | Security element for electronic surveillance of articles A radio frequency security element is provided for electronic surveillance of articles of merchandise. The security element comprises a lower strip conductor (1) and an upper strip conductor (5), which are wound in opposite directions. The upper and lo... | 01/17/2006 |
| 6972686 | Radiated field detector A testing device is operative to sense or monitor a radiated field emitted by an igniter for heating equipment such as an oil burner and to indicate the detection corresponding to a normal operating state of the igniter. ... | 12/06/2005 |
| 6964205 | Sensor with plurality of sensor elements arranged with respect to a substrate A sensor for measuring a parameter applied to a surface is provided. The sensor includes at least one substrate layer, a plurality of individual sensor elements operatively arranged with respect to the substrate layer, and a conductive trace disposed on the substrat... | 11/15/2005 |
| 6925701 | Method of making a series of resonant frequency tags A method of making a resonant frequency tag which resonates at a predetermined frequency. The method involves providing a first conductive pattern having an inductive element and a first land and a second conductive pattern having a second land and a third land whic... | 08/09/2005 |
| 6888313 | Impedance matching network with termination of secondary RF frequencies There is provided a secondary reactive termination circuit connected between the output of the RF power generator and the input of the plasma chamber to allow the tight regulation or limiting of the voltage and current components of the secondary frequencies within ... | 05/03/2005 |
| 6832507 | System for detecting the presence of moisture The system comprises at least one electronic sensor for detecting the presence of moisture. The system further comprises at least one reading device for obtaining information from the sensor about the presence of moisture. The sensor comprises a resonant circuit whi... | 12/21/2004 |
| 6674291 | Method and apparatus for determining and/or improving high power reliability in thin film resonator devices, and a thin film resonator device resultant therefrom The effects of electromigration have been shown to lead to damage of metal electrodes of electronic devices such as thin film resonator (TFR) devices in only a few hours, for a test input power that is within the operational range of these devices. It has... | 01/06/2004 |
| 6583630 | Systems and methods for monitoring wear and/or displacement of artificial joint members, vertebrae, segments of fractured bones and dental implants A distance measurement system is provided. The distance measurement system includes at least one resonant circuit, at least one magnetic element with predetermined magnetic properties, a transmitter operable to transmit an electromagnetic pulse, a receive... | 06/24/2003 |
| 6570377 | Systems and method for determining proximity sensor characteristics A system and method for determining characteristics of a proximity sensor. According to a preferred embodiment, the admittance of a proximity sensor/cable assembly is measured at two frequencies. Assumptions about sensor characteristics and cable characte... | 05/27/2003 |
| 6528859 | Foil wound low profile L-C power processor The present invention provides a foil wound low profile power L-C processor. A magnetic winding is disposed within a core. The magnetic winding can be made of one or more sets of conductive foil and insulation film wound together in a spiral pattern. The ... | 03/04/2003 |
| 6496019 | Temperature compensated pressure sensor network A temperature compensated pressure sensor network for providing an output sensing signal representative of an applied pressure includes a reference oscillator circuit for providing a reference signal having an associated reference frequency. The oscillato... | 12/17/2002 |
| 6417663 | Detecting physical objects states using electromagnetic sensors Disclosed is a position detection system for determining a state of a physical object. The position detection system includes a platform and a physical object positioned adjacent to the platform. The physical object has an object state that is changeable.... | 07/09/2002 |
| 6300777 | Lamp ignition detection circuit A circuit for detecting the ignition of a fluorescent lamp at any dim position by comparing the phase of the current flowing through the lamp resonant output stage to a predetermined reference phase value. When the phase of the current is coincident with ... | 10/09/2001 |
| 6236220 | Method for the testing of an inductive resonant circuit A method for testing whether an antenna circuit of a contactless chip card is defective. The antenna circuit is an inductive resonant circuit comprising a capacitor and an antenna coil. The antenna coil of the resonant circuit is excited by inductive coup... | 05/22/2001 |
| 6236276 | Method for seeking and setting a resonant frequency and tuner operating according to the method In a method for seeking and setting a resonant frequency for a load impedance and a tuner for carrying out the method, a first frequency sweep is performed over a predetermined frequency interval in order to identify the resonant frequency within the pred... | 05/22/2001 |
