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Resonance Frequency patents



      

This page is updated frequently with new Resonance Frequency-related patent applications.




Date/App# patent app List of recent Resonance Frequency-related patents
04/07/16
20160100252 
 System and  driving a low frequency speaker patent thumbnailSystem and driving a low frequency speaker
A control circuit configured to control a speaker is disclosed. The control circuit is configured to drive the speaker at a predetermined frequency that may correspond to a resonance frequency.
Gentex Corporation


04/07/16
20160099579 
 Wireless power transmission system, and  controlling transmission and reception of resonance power patent thumbnailWireless power transmission system, and controlling transmission and reception of resonance power
A resonance power transmission system, and a method of controlling transmission and reception of a resonance power are provided. According to one embodiment, a method of controlling resonance power transmission in a resonance power transmitter may include: transmitting resonance power to a resonance power receiver, the resonance power having resonance frequencies which vary with respect to a plurality of time intervals; and receiving, from the resonance power receiver, information regarding the resonance frequency having the highest power transmission efficiency among the resonance frequencies used in the time intervals..
Samsung Electronics Co., Ltd.


03/31/16
20160094265 
 Dielectric filter, transceiver, and base station patent thumbnailDielectric filter, transceiver, and base station
Embodiments relate to the field of technologies of components of communications devices, and provide a dielectric filter, which resolves a problem that a solid dielectric filter has a difficulty in implementing capacitive coupling. The dielectric filter includes at least two dielectric resonators, where each of the dielectric resonators includes a body made of a solid-state dielectric material, and an adjusting hole located on a surface of the body.
Huawei Technologies Co., Ltd.


03/31/16
20160094199 
 Resonant circuit with variable frequency and impedance patent thumbnailResonant circuit with variable frequency and impedance
A resonant circuit comprises an input terminal and an output terminal and at least: a group of n resonators, where n≧1, the resonators having the same resonance frequency and the same antiresonance frequency; a first and a second impedance matching element having a non-zero reactance, the first element being in series with the group of resonators, and the second element being in parallel with the group of resonators, the resonant circuit comprising: first means for controlling the group of resonators, enabling the static capacitance of the group to be fixed at a first value; second control means, enabling the impedance of the first impedance matching element and that of the second element to be fixed at second values; the first and second values being such that the triplet of values composed of the static capacitance of the group, the impedance of the first element, and the impedance of the second element can be used to determine the following triplet of parameters: the characteristic impedance zc of the assembly formed by the group, the first impedance matching element and the second matching element; the resonance frequency ωr of the assembly; the antiresonance frequency ωa of the assembly, in order to stabilize the impedance of the circuit at a chosen characteristic impedance.. .
Commissariat A L'energie Atomique Et Aux Energies Alternatives


03/31/16
20160091738 
 Optical closed loop microresonator and thyristor memory device patent thumbnailOptical closed loop microresonator and thyristor memory device
A semiconductor device that includes an optical resonator spaced from a waveguide structure to provide for evanescent-wave optical coupling therebetween. The optical resonator includes a closed loop waveguide defined by an epitaxial layer structure that includes at least one quantum well.
Opel Solar, Inc.


03/24/16
20160087456 
 Power transfer system, power transmitting device, power receiving device, and power transfer method patent thumbnailPower transfer system, power transmitting device, power receiving device, and power transfer method
A power transfer system includes a power transmitting device and a power receiving device that are opposed to each other with sandwiching a medium therebetween. The power transmitting device transmits electric power at a resonance frequency that is determined by an impedance of an electric power transmission path including the power transmitting device, the power receiving device, and the medium..
Nec Corporation


03/17/16
20160079958 
 Acoustic resonator comprising vertically extended acoustic cavity patent thumbnailAcoustic resonator comprising vertically extended acoustic cavity
An acoustic resonator device includes a substrate, a bottom electrode, a piezoelectric layer, and a top electrode. The top electrode includes a first top comb electrode having a first top bus bar and first top fingers extending in a first direction from the first top bus bar, and a second top comb electrode having a second top bus bar and second top fingers extending in a second direction from the second top bus bar, substantially opposite to the first direction, such that the first and second top fingers form a top interleaving pattern.
Avago Technologies General Ip (singapore) Pte. Ltd.


03/17/16
20160076945 
 System for monitoring temperature of electrical conductor patent thumbnailSystem for monitoring temperature of electrical conductor
A system for monitoring temperature of an electrical conductor (31) enclosed in at least a (semi)conductive layer (13) comprising: a passive inductive unit (20), and a transceiver unit (40) and a control unit (50). The passive inductive unit (20) includes at least one temperature sensitive component and is configured to have a resonance frequency and/or q value that vary with temperature of the electrical conductor (31).
3m Innovative Properties Company


03/10/16
20160069850 
 Resonant co2 sensing with mitigation of cross-sensitivities patent thumbnailResonant co2 sensing with mitigation of cross-sensitivities
Various exemplary embodiments relate to a device to measure carbon dioxide (co2) levels, including a first oscillator group comprising a first sensor to measure air pressure, where the first sensor comprises a first sealed membrane, and where the first sealed membrane overlays a sealed first cavity; a second oscillator group including a second sensor to measure the resonance frequency of a second unsealed oscillating membrane, and where the second unsealed membrane overlays a second cavity in contact with the air outside of the second sensor; and a mixer accepting as input a first frequency measurement output from the first oscillator group and a second frequency measurement output from the second oscillator group, outputting the difference of the first frequency measurement and the second frequency measurement, and computing a carbon dioxide measurement based on the difference.. .
Ams International Ag


03/03/16
20160064818 
 Antenna apparatus and electronic device including the antenna apparatus patent thumbnailAntenna apparatus and electronic device including the antenna apparatus
According to one embodiment, an antenna includes a second element that has an end connected to a first point of a first element, and first and second ends kept open, and includes a first portion extending from a feed terminal to the first end, and a second portion extending from the feed terminal and bifurcated at a second point between the first point and the first end. The lengths of the first and second portions are set to substantially ¼ of a resonance frequency, and substantially ¾ of a resonance frequency, severally.
Kabushiki Kaisha Toshiba


03/03/16
20160061688 

Fatigue testing of a test specimen


The invention pertains to a combination of a test rig and test specimen for performing a fatigue test, wherein the test specimen is non-axisymmetric and comprises:—a central element,—a first branch element, which has a longitudinal axis that extends at an angle to the longitudinal axis of the central element,—a joint connecting the first branch element to the central element, which has an in plane bending resonance frequency with an associated in plane bending mode shape, and an out of plane bending resonance frequency with an associated out of plane bending mode shape, wherein the in plane bending resonance frequency and the out of plane bending frequency are substantially the same, wherein the first node of the in plane bending mode shape and the first node of the out of plane bending mode shape are substantially at the same position at the first branch element and wherein the test rig comprises:—a support for supporting the test specimen,—an excitator for subjecting the test specimen to forced vibration at an excitation frequency.. .
Onderzoekscentrum Voor Aanwending Van Staal N.v.


03/03/16
20160059713 

Method for charging a vehicle battery by induction


The invention relates to a method for charging a vehicle battery by induction from a charging device including a charge transmitter including a primary coil l1 and an inverter capable of supplying the primary coil l1 with an ac supply voltage e. Said device also includes a charge receiver including a secondary coil l2 arranged in a vehicle.
Schneider Electric Industries Sas


02/25/16
20160056793 

Ladder-type surface acoustic wave filter including series and parallel resonators


A ladder-type surface acoustic wave filter assembly includes a plurality of series resonators formed on a substrate and connected between an input terminal and an output terminal. A first series resonator has a lowest resonance frequency among the plurality of series resonator.
Skyworks Panasonic Filter Solutions Japan Co., Ltd.


02/25/16
20160056638 

Wireless power transfer device, supplied-power control wireless power transfer device, and wireless-power-transfer-device manufacturing method


A wireless power transmission apparatus, a supply power control method, and a manufacturing method of the wireless power transmission apparatus, with which supply power is controlled by adjusting the resonance frequency of a coil of a power-supplying device and/or the resonance frequency of a coil of a power-receiving device while power transmission efficiency is maintained, are provided. As a supply power control method for a wireless power transmission apparatus 1 which supplies power from a power-supplying module including a power-supplying resonator to a power-receiving module including a power-receiving resonator by changing a magnetic field, power supplied to a power-supplied electronic device is controlled by setting an input impedance zin of the wireless power transmission apparatus by adjusting the resonance frequency of at least one of a power-supplying resonator and a power-receiving resonator..
Nitto Denko Corporation


02/25/16
20160054267 

Apparatus for analyzing active material of secondary battery and analyzing active material using the same


An apparatus for analyzing an active material of a secondary battery may include: a first electrode; a piezoelectric layer on the first electrode; a second electrode on the piezoelectric layer, configured to provide a voltage having a polarity opposite to a polarity of the first electrode; and/or an insulating layer on the second electrode and including a through hole exposing a portion of the second electrode. A method of analyzing an active material of a secondary battery may include: disposing an active material in a through hole of a bulk acoustic resonator, in which a first electrode, a piezoelectric layer, a second electrode, and an insulating layer are stacked; measuring a resonance frequency of the resonator by applying an electric signal to the first and second electrodes of the resonator; and/or measuring a weight of the active material in the through hole, based on the measured resonance frequency..
Samsung Electronics Co., Ltd.


02/25/16
20160053091 

Polyamide resin composition reinforced with glass fiber


The present invention provides a polyamide resin composition reinforced with glass fiber which can produce a molded product having high anti-vibration property or, in other words, having very high resonance frequency and having, upon necessity, excellent weather-resisting color fastness. A polyamide resin composition reinforced with glass fiber, comprising a polyamide resin (a) constituted from aliphatic polyamide (a1) and aromatic component-containing polyamide (a2), and glass fibers (b) having a cross-sectional area of 1.5 to 5.0×10−6 cm2, wherein ratio by weight of the polyamide resin (a) to the glass fibers (b) [(a):(b)] is from 20:80 to 35:65 and ratio by weight of the aliphatic polyamide (a1) to the aromatic component-containing polyamide (a2) [(a1):(a2)] is from 5:95 to 95:5.
Toyobo Co., Ltd.


02/25/16
20160051131 

Scanner for two-dimensional optical scanning, manufacturing method thereof, and medical imaging apparatus using the same


Provided are a scanner for two-dimensional optical scanning capable of implementing two-dimensional driving by one input signal without an additional structure for modulating a resonance frequency using modulation of the resonance frequency through asymmetry of the scanner itself, and a manufacturing method thereof. In addition, there is provided a manufacturing method of a scanner for two-dimensional optical scanning capable of implementing compact packaging through a micro electro mechanical systems (mems) process to miniaturize the scanner, such that it may be used in a micro-miniature system such as an endoscope and capable of increasing precision of the scanner and manufacturing the scanner in various shapes and at a low cost.
Korea Advanced Institute Of Science And Technology


02/18/16
20160049967 

Rf transmitter for electrically short antenna


An rf transmitter comprises a capacitive energy storage, an output stage and a switching circuit with an open state and a closed state. The capacitive energy storage forms with the antenna when connected thereto a resonance circuit with a resonance frequency and a quality factor.
Oticon A/s


02/18/16
20160049797 

Receiving device for receiving a magnetic field and for producing electric energy by magnetic induction


A receiving device for receiving a magnetic field and producing electric energy by magnetic induction. The receiving device includes at least one coil of an electric line.
Bombardier Transportation Gmbh


02/18/16
20160047932 

Electric near-field probe, control system for same, and piezoelectric crystal detector


Provided is a compact and lightweight electric field probe which has a transmitting/receiving function whereby piezoelectric crystals can be excited through the application of an alternating current electric field thereto, and piezoelectric effect signals can be detected with sufficient sensitivity. Also provided are a control system for the same, and a piezoelectric crystal detector.
Osaka University


02/18/16
20160045725 

Implantable device with electrical filter


An implantable device including a proximal end, a distal end, an elongate electrically conductive component arranged between the proximal end and the distal end, and a contact pole electrically connected to the elongate electrically conductive component. The contact pole is arranged in a region of the distal end to electrically contact bodily tissue adjacent to the contact pole during operation of the implantable device.
Biotronik Se & Co. Kg


02/11/16
20160042205 

Implant telemetry with dynamic tuning


Systems and methods for maximizing the resonance frequency match between a reader and a controlled device interacting over a narrowband inductive link involve, in various embodiments, features of the controlled device, the reader, or both.. .

02/04/16
20160036408 

Snap-on coaxial cable balun and trapping rf current on outside shield of coax after installation


Apparatus and method for a radially attachable rf trap attached from a side to a shielded rf cable. In some embodiments, the rf trap creates a high impedance on the outer shield of the rf cable at a frequency of rf signals carried on at least one inner conductor of the cable.
Life Services, Llc


02/04/16
20160036116 

Dielectric resonator, dielectric filter, and fabrication method


The present application provides a dielectric resonator, a dielectric filter, a base station and a method for fabricating the dielectric resonator or the dielectric filter. The dielectric resonator includes: a solid dielectric resonator body, a blind hole located on one side of the solid dielectric resonator body, a metalized layer covering both a surface of the solid dielectric resonator body and a surface of the blind hole, and a demetallized notch located at the metalized layer on the surface of the blind hole.
Huawei Technologies Co., Ltd.


02/04/16
20160033959 

Servo motor controller having self-measuring function and self-monitoring function of mechanical stiffness


A servo motor controller includes a speed command generating unit for generating a speed command value of the servo motor, a speed detecting unit that detects a speed of the servo motor, a torque command generating unit for generating a torque command value, a sine wave generating unit for generating a sinusoidal disturbance value, a frequency response calculating unit for calculating a frequency response when the sinusoidal disturbance value has been input to a speed control loop, a resonance frequency detecting unit for detecting a resonance frequency at which a gain is maximized, a resonance frequency storing unit for storing the resonance frequency, at least one filter for attenuating a specific frequency band component included in the torque command value, and a resonance frequency comparing unit for measuring stiffness of a machine tool based on the resonance frequency and adjusts the filter with respect to the resonance frequency.. .
Fanuc Corporation


02/04/16
20160033592 

Enhancement of magnetic resonance image resolution by using bio-compatible, passive resonator hardware


Embodiments of the present invention address the problems with previously known mri enhancement resonators. The embodiments provide capacitances that are sufficiently large to result in resonance frequencies that are sufficiently low for medical mri applications in devices that are sufficiently small for implantation into the body.

02/04/16
20160033422 

Fano resonance microwave spectroscopy of high absorption matter


The invention is a method of fano resonance microwave spectroscopy of high absorption matter. The method comprises: embedding a magnetic-dipolar-mode (mdm) ferrite disk in the microwave cavity, loading a sample of the high absorption matter in the microwave cavity, using a bias magnetic field to tune the mdm resonance frequency of the ferrite disk to the resonance frequency of the cavity; and observing the symmetric lorentz-like lineshape of the resonance peaks that are obtained..
B.g. Negev Technologies And Applications Ltd., At Ben-gurion University


02/04/16
20160033401 

Plasmonic structure with enhanced bandwidth


Embodiments are directed to a plasmonic structure having an enhanced resonance frequency bandwidth. In one aspect, a plasmon-enhanced coupler is provided having a first plasmon region and a second plasmon region.
International Business Machines Corporation


01/28/16
20160028374 

Apparatus and tuning a resonance frequency


There are disclosed various apparatuses and methods for tuning a resonance frequency. In some embodiments there is provided an apparatus (200) comprising at least one input electrode (202, 204) for receiving radio frequency signals; a graphene foil (210) for converting at least part of the radio frequency signals into mechanical energy; at least one dielectric support element (212) to support the graphene foil (210) and to space apart the at least one input electrode (202, 204) and the graphene foil (210).
Nokia Technologies Oy


01/28/16
20160026130 

Fixing apparatus


A fixing apparatus includes a tubular rotation member including a conductive layer, a helical coil, a resonance circuit, including a resonance capacitor, formed with the rotation member and the coil, a resonance inverter configured to control the resonance circuit, and a control unit configured to control electric power supplied to the resonance inverter, wherein the conductive layer generates heat with electromagnetic induction caused by magnetic flux generated through the coil, wherein the control unit sets a driving frequency of the resonance inverter according to at least one of a size of the recording medium and a temperature of a non-sheet-passing portion of the rotation member, and wherein the control unit changes a resonance frequency of the resonance circuit according to the set driving frequency.. .
Canon Kabushiki Kaisha


01/28/16
20160022154 

System including guidewire for detecting fluid pressure


A system for detection of blood pressure in a blood vessel includes a guide wire and a lc resonance circuit provided at a distal end of the guide wire. The resonance circuit may be a non-lc resonance circuit responsive to changes in pressure of fluid external to the guide wire such that the resonance circuit has a resonance frequency that varies in accordance with changes in pressure of the external fluid..
Guided Interventions, Inc.


01/21/16
20160021463 

Vibrating body for acoustic transducer and speaker device


A vibrating body for an acoustic transducer is provided, in which the high resonance frequency associated with inverse resonance can be outside the audible range and which can improve the acoustic characteristic of a speaker device. The vibrating body 1 for an acoustic transducer includes: a diaphragm 2 including a first vibrating part 2a and a second vibrating part 2b formed in proximity of the outer circumferential edge of the first vibrating part 2a; and an edge portion 3 formed in proximity of the outer circumferential edge of the diaphragm 2.
Tohoku Pioneer Corporation


01/21/16
20160020712 

Vibration wave motor


A vibration wave motor includes a vibration plate having a flat plate portion and protruding portions, a piezoelectric element that performs high-frequency vibration, a friction member contacting the protruding portions, and a first natural vibration mode and a second natural vibration mode, which are excited in the vibration plate by the high-frequency vibration, the vibration plate and the friction member moving relatively to each other, maximum amplitude generated on tip ends of the protruding portions by the first natural vibration mode is larger than maximum amplitude generated on tip ends of the protruding portions by the second natural vibration mode, a resonance frequency of the first natural vibration mode is lower than a resonance frequency of the second natural vibration mode, and amplitudes of the first natural vibration mode and the second natural vibration mode in a frequency range at a time of drive substantially coincide with each other.. .
Canon Kabushiki Kaisha


01/21/16
20160020527 

Antenna device


An antenna device includes a ground; a monopole antenna including a first section running from a feeding point along the ground, a second section running in a direction away from the ground, and a third section running along the ground, the monopole antenna having a length corresponding to ¼ of a wavelength at a first resonance frequency; a parasitic element including a first section whose end is connected to the ground in the vicinity of the end of the first section of the monopole antenna and that runs in a direction away from the ground, and a second section, the parasitic element having a length corresponding to ¼ of a wavelength at a second resonance frequency; and a dipole antenna provided along the third section of the monopole antenna and the parasitic element, the dipole antenna having a length corresponding to ½ of a wavelength at a third resonance frequency.. .
Fujitsu Limited


01/21/16
20160018294 

Vibration damping system and vehicle


A vibration damping system comprises a vibration applying device mounted on a frame and a control device that controls the vibration applying device, the control device comprising a voltage command producing part that produces a driving voltage command to drive the vibration applying device and a vibration failure diagnosis part that diagnoses whether there is failure based on a vibration detection signal output by a vibration detecting device, wherein the voltage command producing part produces the driving voltage command corresponding to a diagnosis frequency that is previously set at a frequency identical to a resonance frequency of the frame or the vibration applying device or at a predetermined frequency close to the resonance frequency and makes the vibration applying device generate the vibration applying force according to the driving voltage command, and the vibration failure diagnosis part diagnoses whether there is failure based on the vibration detection signal.. .
Sinfonia Technology Co., Ltd.


01/14/16
20160013865 

Micro-disc modulator, silicon photonic device and optoelectronic communication apparatus using the same


Various embodiments of a micro-disc modulator as well as a silicon photonic device and an optoelectronic communication apparatus using the micro-disc modulator are described. In one aspect, a device includes a soi substrate and a silicon photonic structure formed on a primary surface of the soi substrate.
Photonic International Pte. Ltd.


01/14/16
20160013394 

Multi-cell transducer


The present invention relates to a transducer device having a planar array of electroacoustic cells, each including a piezoelectric bilayer unit. The transducer device achieves high transmission sensitivity across a broad bandwidth.
Microtech Medical Technologies Ltd.


01/14/16
20160010994 

Mems gyro motor loop filter


A motor drive loop circuit for a micro-electro-mechanical system (mems) gyroscope is provided. The motor drive loop circuit includes a motor configured to drive a proof mass in the mems gyroscope and a minus-90-degree phase-shift twin-tee notch filter.
Honeywell International Inc.


01/14/16
20160010721 

Torsional resonance frequency adjustor


Engaging inclined surfaces of an inner ring and an outer ring create wedge action inducing an inward radial force as the rings are forced together longitudinally, holding the adjustor on a rotating body. An inner total arcuate length of each ring is smaller than an outer total arcuate length of a respective target body (inner ring for outer ring, rotating body for inner ring).
General Electric Company


01/14/16
20160008621 

Biological resonance chip


The present invention is a biological resonance chip utilizing a human biological micro-wave and coupling resonance technique by consisting of a printed circuit sticker at which at least a biological micro-wave receiver, a high frequency oscillating chip and at least a biological micro-wave transmitter are provided and electrically connected. By the aforesaid configuration, a product made by the printed circuit sticker can be placed at an arbitrary area of a human body from which a human biological micro-wave is emitted, picked by the biological micro-wave receiver, received by the high frequency oscillating chip for amplifying a power level and transmitted by the biological micro-wave transmitter to the human body for improving a health condition thereof.

01/07/16
20160004954 

Frequency tuning of an electronic tag


An electronic tag including: a first planar conductive winding forming an antenna coupled, with or without contact, with an electronic circuit; and a correction element, placed on the first winding and having its shape and position relative to the first winding selected according to a resonance frequency correction desired for the assembly.. .
Commissariat A L'energie Atomique Et Aux Energies Alternatives


12/31/15
20150382102 

Dynamic microphone and forming back-side air chamber


A dynamic microphone which prevents a wall forming a back-side air chamber from having a certain resonance frequency and effectively prevents the generation of standing waves in the back-side air chamber is provided. A dynamic microphone includes a dynamic microphone unit including a diaphragm configured with a voice coil and a magnetic circuit having a magnetic gap provided so as to allow the voice coil to vibrate, a bottomed case which is coupled to the dynamic microphone unit and forms a back-side air chamber communicating with back side of the diaphragm, and an acoustic resistance body which is pressingly attached in the case and composed of metal fiber including a pocket, an open cross sectional area of the pocket gradually decreasing toward the direction remote from the dynamic microphone unit..
Kabushiki Kaisha Audio-technica


12/31/15
20150381344 

Semiconductor device


A semiconductor device includes a controlled oscillator and a control unit. The controlled oscillator includes a resonance circuit, an amplification unit, and a current adjustment unit.
Renesas Electronics Corporation


12/31/15
20150381064 

Bidirectional dc/dc converter


A bidirectional dc/dc converter includes first and second control circuits, and first and second bridge circuits respectively connected to first and second direct current voltage supplies. In one embodiment variant, when power is supplied from the first direct current voltage supply to the second direct current voltage supply, the first control circuit carries out pfm control of the first bridge circuit at a frequency equal to or lower than the resonance frequency of an lc resonant circuit in accordance with a control amount based on the voltage and current of the second direct current voltage supply.
Fuji Electric Co., Ltd.


12/31/15
20150380978 

Wireless charger


The invention relates to decreasing power consumption of wireless charging devices in standby condition. A method for decreasing power consumption comprises feeding at least one detecting signal as a pulse to a wireless charging coil (120) of a power transmitter (100) comprising a charging area, wherein the detecting signal corresponds with an expected resonance frequency of the wireless charging coil (120) measuring a reflected signal caused by feeding the detecting signal, determining whether the reflected signal satisfies a non-resonance condition and activating a power transmitting circuit in response to determining that the reflected signal satisfies the non-resonance condition.
Nokia Corporation Oy


12/31/15
20150380944 

Power supply device, integrated circuit, energy transmitter and impedance matching method


A resonance contactless power supply device can include: (i) a converter configured to convert an input power signal to an adjustable dc voltage; (ii) an inverter configured to receive the adjustable dc voltage, and to generate an ac voltage with a leakage inductance resonance frequency; (iii) a first resonance circuit having a transmitting coil, and being configured to receive the ac voltage from the inverter; (iv) a second resonance circuit comprising a receiving coil that is contactlessly coupled to the transmitting coil, where the second resonance circuit is configured to receive electric energy from the transmitting coil; and (v) a control circuit configured to control the adjustable dc voltage according to a phase difference between the ac voltage and an ac current output by the inverter, such that the phase difference is maintained as a predetermined angle.. .
Silergy Semiconductor Technology (hangzhou) Ltd


12/24/15
20150369605 

Symmetric three-laser resonator fiber optic gyroscope


A resonator fiber optic gyroscope comprises a master laser that emits a reference optical signal, a first slave laser that emits a clockwise optical signal, and a second slave laser that emits a counter-clockwise optical signal. A resonator ring cavity in optical communication with the first slave laser and second slave laser is configured to receive the optical signals from the slave lasers without receiving the reference optical signal.
Honeywell International Inc.


12/24/15
20150367708 

Tuned air extractor to prevent wind throb in a vehicle


An air extractor is provided for reducing wind throb in a vehicle. The air extractor includes a support having a first opening.
Ford Global Technologies, Llc


12/17/15
20150365139 

Transceivers for near field communication, near field communication devices, and electronic systems having the same


A transceiver for near field communication may include: a resonance circuit coupled between a first node and a second node, the resonance circuit having a resonance frequency and being configured to emit an electromagnetic wave to communicate data with an external device; a first capacitor coupled between the first node and a third node; a second capacitor coupled between the second node and a fourth node; and/or a filter coupled among a first transmission electrode, a second transmission electrode, the third node, and the fourth node in an asymmetrical structure to provide a first frequency response and a second frequency response to the first transmission electrode and the second transmission electrode, respectively, the first frequency response being different from the second frequency response, the filter being configured to receive the data through the first transmission electrode and the second transmission electrode.. .

12/17/15
20150365066 

Power transmission system, transmission apparatus, receiving apparatus, and power transmission method


A transmission apparatus transmits electric power via a medium that is present between the transmission apparatus and a receiving apparatus. The transmission apparatus includes: an antenna; and a power transmission circuit that outputs electric power via the antenna of the transmission apparatus, the electric power having a first resonance frequency determined by an impedance of the medium, an impedance of the antenna of the transmission apparatus, and an impedance of an antenna of the receiving apparatus..
Nec Corporation


12/17/15
20150362425 

Single molecule spectroscopy using photothermal tuning of optical microcavities


Methods and apparatuses for single particle and single molecule spectroscopy are provided. A method comprises exposing the surface of an optical microcavity characterized by at least one resonance frequency to a sample such that a single particle or a single molecule from the sample adsorbs onto the surface of the microcavity; evanescently coupling a probe laser beam into the microcavity, wherein the wavelength of the probe laser beam substantially matches the at least one resonance frequency; illuminating the surface of the microcavity with a free space pump light beam such that the focal spot of the free space pump light beam substantially overlaps with the single particle or the single molecule; and detecting light from the probe laser beam, wherein the wavelength of the free space pump light beam is that which generates sufficient heat via energy absorbed by the single particle or the single molecule from the free space pump light beam to induce a shift in the at least one resonance frequency, thereby providing a change in an optical characteristic of the detected light from the probe laser beam..
Wisconsin Alumni Research Foundation


12/17/15
20150361841 

Vehicle exhaust system with resonance damping


A vehicle exhaust system includes an exhaust component having an outer surface and an inner surface that defines an internal exhaust component cavity. At least one bleed hole is formed in the exhaust component to reduce a resonance frequency.
Faurecia Emissions Control Technologies


12/10/15
20150358740 

Electrical tuning of parameters of piezoelectric actuated transducers


Parameters, such as, quality factor and/or resonance frequency of an acoustic transducer can be electrically tuned. The acoustic transducer can include a piezoelectric layer deposited on a silicon supporting layer, a first electrode layer deposited on the piezoelectric layer, and a second electrode layer deposited between the silicon supporting layer and piezoelectric layer.
Invensense, Inc.


12/10/15
20150358026 

Apparatus, system, and frequency generation using an atomic resonator


Some demonstrative embodiments include devices, systems and/or methods of generating a frequency reference using a solid-state atomic resonator formed by a solid-state material including an optical cavity having color centers. A device may include a solid-state atomic clock to generate a clock frequency signal, the solid-state atomic clock including a solid state atomic resonator formed by a solid-state material including an optical cavity having color centers, which are capable of exhibiting hyperfine transition, wherein the solid-state atomic clock may generate the clock frequency signal based on a hyperfine resonance frequency of the color centers.

12/10/15
20150357958 

Control vibration generator and vibration generator


A control method for a vibration generator is provided. The vibration generator includes a fixed part around which a coil is wound, a movable part having a magnet, a bridge part movably supporting the movable part, and a power supply unit which applies an alternating current of a predetermined frequency to the coil.
Minebea Co., Ltd.


12/10/15
20150357843 

Storage battery equalization device capable of charging battery pack including storage battery modules having different output voltages in short time


A storage battery equalization device is provided with: a battery pack including a plurality of storage battery modules; a plurality of equalization circuits corresponding to the respective storage battery modules, each including a dc/ac mutual converter circuit, a variable capacitor, and a transformer; external wirings interconnecting secondary windings of the transformers; voltage monitors each being connected across both electrodes of a corresponding storage battery module; and an equalization control unit. The equalization control unit determines equalization groups, each including one or more storage battery modules for discharging and one or more storage battery modules for charging, sets one of electrostatic capacitance values to the variable capacitors for each equalization group, the electrostatic capacitances corresponding to resonance frequencies of the equalization circuits, and controls a frequency of an alternating current outputted from the dc/ac mutual converter circuit of each equalization circuit, to be the resonance frequency of the equalization circuit..
Mitsubishi Electric Corporation


12/10/15
20150355306 

Method and magnetic resonance generating a parameter map to compensate local inhomogeneities in the basic magnetic field


In a method and a controller for generating a parameter map for a target volume in an examination object, that represents a field deviation from the resonance frequency of a first spectral component of tissue of object in a magnetic resonance tomography scanner, a spatial region of the object, which includes at least the target volume, is excited. At least three echo signals are formed, wherein a first echo time difference between two the echo signals is chosen such that the phase evolutions of the signals of a second spectral component of the tissue differ, during the first echo time difference, from the first spectral component substantially by 2π, and an echo time of at least a further one of the echo signals is chosen such that it lies between the echo times of the two echo signals having the first echo time difference.
Siemens Aktiengesellschaft


12/03/15
20150349743 

Acoustic resonator comprising vertically extended acoustic cavity


A bulk acoustic wave (baw) resonator having a vertically extended acoustic cavity is provided. The baw resonator includes a bottom electrode disposed on a substrate over a cavity formed in the substrate; a piezoelectric layer disposed on the bottom electrode, and a top electrode disposed on the piezoelectric layer.
Avago Technologies General Ip (singapore) Pte. Ltd.


12/03/15
20150346849 

Position pointer of the electromagnetic induction type and electronic ink cartridge


A position pointer is disclosed, in which an electronic ink cartridge of an electromagnetic induction type is accommodated. The electronic ink cartridge includes a resonance circuit having a coil and a capacitor circuit, and is configured to detect pressure applied to a core member accommodated in the position pointer based on a variation of a resonance frequency of the resonance circuit.
Wacom Co., Ltd.


12/03/15
20150346306 

Pulse detection apparatus and pulse detection method


Provided is a pulse detection apparatus and a pulse detection method less susceptible to movement of a subject and less susceptible to noise. An oscillation frequency controller is configured to cause a frequency variable oscillator to oscillate at a predetermined oscillation frequency, which is a frequency within a range assumed as a resonance frequency of a molecule of a predetermined constituent constituting the blood flowing through a human body.
Kyushu Institute Of Technology


12/03/15
20150346126 

Sensor, measuring device, and measuring method


A sensor measures a sample in a measuring cell including a helix conductor. The shell structure of the measuring cell is made of an electrically non-conductive material.
Senfit Oy


12/03/15
20150346047 

Tire pressure decrease detection apparatus and method, and computer readable medium therefor


A tire pressure decrease detection apparatus comprising: rotation speed information detection means, rotation acceleration information calculation means, resonance frequency estimate means for time-series estimating a torsional resonance frequency of the rotation speed information, correlation calculation means for, regarding front and rear right wheels and front and rear left wheels, respectively calculating time series correlations of the rotation acceleration information, and judgment means for judging a decrease in pressure of the tires based on the estimated torsional resonance frequency. In a case where the correlations exceed predetermined threshold values, the resonance frequency estimate means takes that a periodic noise from a road surface is generated in the vicinity of the torsional resonance frequency and stops estimating the torsional resonance frequency of the front and rear wheels of the side exceeding the threshold value..
Sumitomo Rubber Industries, Ltd.


11/26/15
20150338761 

Optical scanning device and image forming apparatus


An optical scanning device includes a light source configured to emit a light beam; a rotary deflector configured to perform optical scanning by reflecting and deflecting the light beam emitted from the light source while rotating; an optical system forming member configured to form a path of the light beam; and a resonator having a resonance frequency corresponding to a sound generated by rotational drive of the rotary deflector. The rotary deflector is installed in a closed space.
Ricoh Company, Limited


11/26/15
20150338437 

Intermittent contact resonance atomic force microscope and process for intermittent contact resonance atomic force microscopy


An intermittent contact atomic force microscope includes: a cantilever configured to receive a contact resonance modulation; a sample disposed proximate to the cantilever; a contact resonance modulator in communication with the cantilever and configured to provide the contact resonance modulation to the cantilever; and a scan modulator in mechanical communication with the sample to provide a scan modulation to the sample. Also disclosed is a process for performing intermittent contact atomic force microscopy, the process includes: providing a dual modulation microscope including: a cantilever configured to receive a contact resonance modulation; a sample disposed proximate to the cantilever; a contact resonance modulator in communication with the cantilever and configured to provide the contact resonance modulation to the cantilever; and a scan modulator in mechanical communication with the sample to provide a scan modulation to the sample; subjecting the cantilever to the contact resonance modulation; modulating the cantilever at a contact resonance frequency; subjecting the sample to the scan modulation; and modulating the sample at a scan modulation frequency to perform intermittent contact atomic force microscopy..
National Institute Of Standards And Technology


11/26/15
20150336207 

Electronic communications device with antenna and electromagnetic shield


An electronic communications device includes a body of semiconductor material with an integrated electronic circuit, an inductive element, and a capacitive element. The capacitive element is formed by a first electrode and a second electrode positioned between the inductive element and the integrated electronic circuit.
Stmicroelectronics S.r.l.


11/19/15
20150333539 

Wireless power transmission system


[organization] a power transmission device has a first and a second electrode (a center electrode 311 and an annular electrode 312) each having a rotationally symmetrical shape with respect to a common center axis, a first and a second connection line (connection lines 315, 316), and a first inductor to (inductor 313, 314). A power reception device has a third and a fourth electrode (center electrode 321 and annular electrode 322) each having a rotationally symmetrical shape with respect to a common center axis, a third and a fourth connection line (connection lines 325, 326), and a second inductor.

11/19/15
20150333538 

Wireless power transmission system


[organization] a power transmission device has a first and a second electrode (111, 112), a first and a second connection line (115, 116), and a first inductor (113, 114). A power reception device has a third and a fourth electrode (121, 122), a third and a fourth connection line (125, 126), and a second inductor (123, 124).

11/19/15
20150331008 

Piezoelectric-based multiple impact sensors and their electronic circuitry


An electrical energy harvesting device for harvesting electrical energy from a pulsed impact loading event. The device including: a piezoelectric element configured to be loaded and unloaded to a first load level by the pulsed impact loading event; and a first inductor coupled to the piezoelectric element configured to be loaded and unloaded to a second load level by the pulsed impact loading event, wherein the piezoelectric element and the first inductor together operate as a first inductor/capacitor (lc) resonant circuit having a first resonance frequency and wherein the loading of the first inductor lags in time the loading of the piezoelectric element..
Omnitek Partners Llc


11/19/15
20150330785 

Angular velocity sensor and manufacturing method therefor


One or more vibration plate layers of a diaphragm part are formed by a thin film forming technique. When a resonance frequency in a resonance vibration mode calculated from dimensions of a structure of an angular velocity sensor and an elastic parameter of a material thereof is defined as f kilohertz, a mass of a weight part is defined as m milligrams, a circumference of the diaphragm part is defined as r meters, a stress applied to a piezoelectric layer is defined as σp pascals, a thickness thereof is defined as tp meters, a stress applied to an n-th layer from the weight part in a vibration plate portion constituted by a plurality of layers including a lower electrode and the vibration plate layers is defined as τn pascals, and a thickness thereof is defined as tn meters (where n is a natural number), teff expressed by teff=r(σptp+Σσntn)/m satisfies {(−0.36f2+210)/33}≦teff≦{(0.44f2+210)/33}..
Fujifilm Corporation


11/19/15
20150330466 

Electric parking brake system


According to an electric parking brake system, a power loss of when detecting a position or a displacement of a plunger is reduced without arranging a sensor, and a mounting space is also reduced. A resonance capacitor is connected to a coil of a solenoid to form a resonance circuit, and a drive current superimposed with a resonance frequency is input to the solenoid forming the resonance circuit.
Ntn Corporation


11/19/15
20150328969 

Inverted type liquid sealed mount


Annular liquid chamber resonance in an inverted type liquid sealed mount is controlled without using flow resistance. In an engine mount including a secondary liquid chamber located in an upper position, a primary liquid chamber located in a lower position, a main body section of an insulator projecting upwardly in substantially a chevron shape, and an annular liquid chamber formed around the main body section, a control projection is provided on an outside wall of the main body section to project upwardly and configured to produce elastic body resonance in the vicinity of a resonance frequency of annular liquid chamber resonance.
Yamashita Rubber Kabushiki Kaisha


11/12/15
20150323466 

Cavity opto-mechanical sensor system


A mass sensor system including multiple fabry-perot microcavities connected in parallel by multiple waveguides. Each of the mass sensors includes a microbridge having a fundamental resonance frequency, and a movable reflective mirror etched into the microbridge; a fixed reflective mirror etched in a substrate, the fixed reflective mirror being fixed to the substrate in a region spaced apart from the movable reflective mirror; and an optical waveguide etched in the substrate that connects the movable mirror and the fixed mirror forming the fabry-perot microcavity interferometer.
The Government Of The United States Of America, As Represented By The Secretary Of The Navy


11/12/15
20150321691 

Compensation control apparatus of motor driven power steering system


A compensation control apparatus of motor driven power steering may include: a torque sensor for measuring a driver's column torque inputted to a steering wheel; and a controller for generating an assist torque based on the column torque measured through the torque sensor, compensating for a phase margin in a low-frequency band for the generated assist torque, detecting a resonance frequency to attenuate resonance, and outputting a final assist torque.. .
Hyundai Mobis Co., Ltd.


11/05/15
20150319523 

Speaker system


When an amplitude of vibration of a first diaphragm of a first speaker unit vibrated by applying a first and a correction ac signals having a frequency in a first frequency band to the first speaker unit is equalized to that of a second diaphragm of a second speaker unit vibrated by applying a second ac signal being the same as the first ac signal to the second speaker unit being the same as the first speaker unit attached to a closed type cabinet having the same internal volume as a speaker cabinet, a sound pressure reproduced by the first diaphragm is equal to or lower than that reproduced by the second diaphragm when a third ac signal having a frequency of a minimum resonance frequency or higher of the closed type cabinet determined by the internal volume thereof and the caliber of the second speaker unit is applied to the second speaker unit.. .
Panasonic Intellectual Property Management Co., Ltd.


11/05/15
20150319517 

Loudspeaker system with improved sound


A loudspeaker device is presented which includes a zeolite material comprising zeolite particles having a silicon to aluminum mass ratio of at least 200. For an increased pore fraction of pores with a diameter in a range between 0.7 micrometer and 30 micrometer shows an increased shift of the resonance frequency down to lower frequencies has been observed..
Nanoscape Ag


11/05/15
20150318900 

Wireless power transfer system, power receiver, and wireless power transfer method


A power receiver includes a resonance coil, an oscillation unit, a communication unit, and a control unit. The resonance coil is configured to wirelessly receive power from a power source using magnetic field resonance or electric field resonance, the oscillation unit is configured to output a voltage which oscillates at a predetermined frequency, and the communication unit is configured to communicate with the power source.
Fujitsu Limited


11/05/15
20150316762 

Apparatus and driving and measuring a mems mirror system


The present invention relates to an apparatus for driving and measuring a mems minor system, the mems minor system having a mirror pivotable around an axis by a driving coil and exhibiting a resonance frequency, having a pulse generator and a measuring unit, each electrically connected to the coil. The pulse generator is preferably configured to feed a modulated pulse signal, comprised of pulses separated by intervals and having a modulation frequency different from the resonance frequency, to the coil.
Trilite Technologies Gmbh


11/05/15
20150314619 

Printing apparatus and motor control method


An embodiment of this invention is directed to implementing motor control of suppressing the influence of the cogging of a motor while minimizing preliminary detection processing. According to this embodiment, a printing apparatus includes an acceleration sensor for detecting the acceleration of a moving carriage, and a control unit configured to control drive of the motor to suppress the influence of the cogging of the motor based on the detection by the acceleration sensor.
Canon Kabushiki Kaisha


11/05/15
20150314263 

Loudspeaker system with improved sound


A loudspeaker device is presented which includes a zeolite material comprising zeolite particles having a silicon to aluminum mass ratio of at least 200. For an increased pore fraction of pores with a diameter in a range between 0.7 micrometer and 30 micrometer shows an increased shift of the resonance frequency down to lower frequencies has been observed..
Nanoscape Ag


10/29/15
20150312684 

Transceiver for a hearing aid and a operating such a transceiver


A frequency-shift-keying (fsk) transceiver for use in a hearing aid system and having a resonant circuit comprising a transceiver inductance (l1), said resonant circuit having a resonance frequency, and a transfer function where gain and phase are frequency dependent, wherein the transceiver comprises an fsk modulator receiving a data stream, and in response thereto outputting an fsk modulated signal to the resonant circuit for wirelessly transmission. The transceiver includes a controller monitoring the data stream received by the fsk modulator, and a phase equalizer unit controlled by the controller for substantially equalizing the phase distortion introduced by the frequency dependent resonant circuit.
Widex A/s


10/29/15
20150311880 

Electric power transmission device and electric power transmission method


An electric power transmission device characterized in that the electric power transmission device includes a power transmitting unit which wirelessly transmits an electric power and a power receiving unit which receives the electric power, the power transmitting unit and the power receiving unit include a coil for electric power transmission and an inclusion unit made of a dielectric material covering the coil for electric power transmission, at least one of the power transmitting unit and the power receiving unit includes an impedance adjustment unit which varies the impedance thereof, and the electric power is transmitted at a resonance frequency determined by an impedance of the power transmitting unit, an impedance of the power receiving unit, and an impedance of the conducting medium.. .
Nec Corporation


10/29/15
20150308990 

System and analyzing a gas


A gas analysis system includes a fluidic channel for flow of a gas to be analyzed, a detector in the channel and adapted for measuring interactions of the gas with the detector, the detector including a resonator of the electromechanical nanosystem (nems) type and a heating system for heating a part of the detector, an actuation device for vibrationally actuating the resonator according to an excitation signal applied to an input of the detector, a detection device adapted for providing an output electric signal representative of the vibrations of the resonator, a read-out device connected to an input of the detector and configured for simultaneously measuring, from the output signal of the detector, the change in resonance frequency and the change in amplitude of the vibrations at the resonance frequency of the resonator, and a processing device configured for determining from the changes a fluidic characteristic of the gas.. .
Apix Analytics


10/29/15
20150308829 

Microelectromechanical gyroscope with open loop reading device and control method


A microelectromechanical gyroscope that includes a first mass oscillatable according to a first axis; an inertial sensor, including a second mass, drawn along by the first mass and constrained so as to oscillate according to a second axis, in response to a rotation of the gyroscope; a driving device coupled to the first mass so as to form a feedback control loop and configured to maintain the first mass in oscillation at a resonance frequency; and an open-loop reading device coupled to the inertial sensor for detecting displacements of the second mass according to the second axis. The driving device includes a read signal generator for supplying to the inertial sensor at least one read signal having the form of a square-wave signal of amplitude that sinusoidally varies with the resonance frequency..
Stmicroelectronics S.r.i.


10/29/15
20150306720 

Control device for working device, working device, control program for working device, control working device, and working method


An nc unit calculates the phase difference in chatter vibration during working on the basis of detection result of sound produced by working a workpiece by an end mill, increases the number of rotations of the end mill by a predetermined number if the phase difference is smaller than a first phase difference threshold, and decreases the number of rotations of the end mill by a predetermined number if the phase difference is larger than a second phase difference threshold. Further, if the phase difference is between the first phase difference threshold and the second phase difference threshold, the nc unit finds the resonance frequency of a machine tool by multiplying a chatter frequency by a correction factor that changes according to the chatter frequency, and calculates the number of rotations of the end mill on the basis of the resonance frequency, to obtain stable working with suppressed chatter vibration..
Mitsubishi Heavy Industries , Ltd.


10/22/15
20150303574 

Nonplanar antenna embedded package structure and manufacturing the same


A nonplanar antenna embedded package structure and a method of manufacturing the same are introduced. The structure includes a nonplanar antenna component.
National Chung Shan Institute Of Science And Technology


10/22/15
20150300999 

Measurement system including a network of nanoelectromechanical system resonators


The invention relates to a measurement system including a network of nanoelectromechanical system (nems) resonators, characterized in that: each one of said resonators includes: an electrostatic activation device capable of generating a vibration of a beam exposed to said excitation signal, at least one piezoresistive stress gauge made of a doped semiconducting material, extending from the beam so as to detect a movement of said beam, the variation in the electrical resistance of said at least one gauge supplying an output signal; said network includes at least two groups of resonators, each group including at least two resonators having an identical empty resonance frequency, each group of resonators having an empty resonance frequency different from that of each other group; the resonators forming each group are connected in parallel; the groups of resonators forming said network are connected in parallel; said system includes a reading device designed to supply an excitation signal at the network input and to determine the resonance frequency of a group of resonators which is selected by injecting, into said excitation signal, a frequency component corresponding to the empty resonance frequency of each selected group of resonators, and by identifying, in the output signal of the network, a resonance frequency component of the selected group of resonators.. .
Apix Analytics


10/15/15
20150295697 

Multiplexer


A multiplexer includes: a first chip that has a first filter and a resonator, the first filter being connected between a common terminal and a first terminal, a first end of the resonator being connected to the common terminal not via the first filter; and a second chip that has a second filter, the second filter being connected between a second end of the resonator and a second terminal and having a pass band lower than that of the first filter, a resonance frequency of the resonator being higher than the pass band of the second filter.. .

10/15/15
20150293456 

Droplet generator, euv radiation source, lithographic apparatus, generating droplets and device manufacturing method


A droplet generator, for an euv radiation source, comprises: a capillary in which, in use, molten material flows; an actuator configured to modulate a pressure inside the capillary; and a controller configured to drive the actuator at a driving frequency; wherein the droplet generator is arranged such that, in use, the driving frequency is equal or about equal to a main resonance frequency of the molten material in the capillary.. .

10/15/15
20150293189 

Transmit/receive switching circuitry with improved radio frequency isolation


A transmit/receive switching circuitry (40; 48) for a magnetic resonance radio frequency antenna (m) for use in an magnetic resonance imaging system (10), the transmit/receive switching circuitry comprising: -a radio frequency input transmission line (tx) provided for transmitting radio frequency power to the magnetic resonance radio frequency antenna (m) and a radio frequency output transmission line (rx) provided for transferring away magnetic resonance signals received by the magnetic resonance radio frequency antenna (m) at a magnetic resonance frequency from the magnetic resonance radio frequency antenna (m);—a parallel resonant circuit (42) with a resonance frequency that is substantially equal to the magnetic resonance frequency, and that is connected in parallel to the magnetic resonance radio frequency antenna (m) with regard to the radio frequency input transmission line (tx),—a series resonant circuit (44) with a resonance frequency that is substantially equal to the magnetic resonance frequency,and that is connected in series between the radio frequency input transmission line (tx) and the radio frequency output transmission line (rx); for providing improved radio frequency isolation between the radio frequency input transmission line (tx) and the radio frequency output transmission line (rx); a method for generating consecutive rf transmit periods and rf receive periods of the magnetic resonance imaging system (10) using such a transmit/receive switching circuitry (40; 48); a switching control unit (32) having at least one such transmit/receive switching circuitry (40; 48), for use in the magnetic resonance imaging system (10); a software module (26) for controlling an execution of such a method.. .

10/08/15
20150288066 

Multiband antenna and wireless device


A multiband antenna includes a feeding element connected to a feeding point, a radiating element functioning as a radiating conductor, the radiating element being positioned apart from the feeding element and fed with electric power by electromagnetically coupling to the feeding element, a ground plane, and a non-feeding element being positioned close to the radiating element and connected to the ground plane via a reactance element. The reactance element has a reactance that causes the multiband antenna to match with a frequency other than a resonance frequency of a resonance mode of the radiating element..

10/08/15
20150288045 

Millimeter waveband filter


To provide a millimeter waveband filter which can vary a resonance frequency in a wider band without causing deterioration of resonance characteristics due to leakage of electromagnetic waves. In a millimeter waveband filter 20, a first waveguides 22 and a second waveguide 24 are relatively moved to vary the interval between the electric wave half mirrors 30a and 30b, and the resonance frequency of a resonator formed between the mirrors varies to selectively transmit resonance frequency components.

10/08/15
20150285658 

Utilization of mechanical quadrature in silicon mems vibratory gyroscope to increase and expand the long term in-run bias stability


A method for self-compensation of the bias draft of the quadrature signal of a gyroscope. The method is a combination of a variety of sub-methods, which can include quadrature compensation, can be used to achieve the highest possible stability.

10/01/15
20150280688 

Acoustic resonator device including trench for providing stress relief


An microelectronic device includes a substrate, a piezoelectric component formed over the substrate, at least one trench formed in the substrate. The piezoelectric component has a corresponding resonance frequency.
Avago Technologies General Ip (singapore) Pte. Ltd.


10/01/15
20150280454 

Wireless power supply linear motion type robot


A wireless power supply apparatus using magnetic resonance is provided for a linear motion type robot. In the apparatus, a high-frequency signal for foreign matter detection is generated.
Denso Corporation


10/01/15
20150280453 

Power reception apparatus, power transmission apparatus, non-contact power supply system, power reception method, and power transmission method


A power reception apparatus includes a power receiving circuit to be connected to a power reception side resonance circuit including a power reception side coil and a power reception side capacitance, for generating an output power based on power received by the power reception side coil utilizing magnetic resonance, a changing/short-circuiting circuit configured to change a resonance frequency of the power reception side resonance circuit from a reference frequency that is the resonance frequency when receiving the power, or to short-circuit the power reception side coil, before receiving the power.. .
Rohm Co., Ltd.


10/01/15
20150280298 

Tunable band-pass filter


The present invention comprises: a conductive chassis having a cavity resonator; a conductive cover to cover the cavity resonator; a resonant element arranged in the cavity resonator, one end of the resonant element being connected with the chassis and the other end being open end; and a movable conductor arranged in a space between the open end of the resonant element and the conductive cover. As a result, a tunable band-pass filter which is inexpensive and of a simple structure and which can change a resonance frequency of a cavity resonator and the coupling amount between cavity resonators easily is realized..
Nec Corporation


10/01/15
20150276903 

Magnetic resonance imaging apparatus


A quantitative image (resonance frequency map) of a resonance frequency difference is obtained using a high-speed phase compensated pulse sequence of a gradient echo (ge) system. A signal function of the pulse sequence used when obtaining the resonance frequency map is generated by a numerical simulation.
Hitachi, Ltd.


10/01/15
20150276404 

Physical quantity detection circuit, physical quantity detecting device, electronic apparatus, and moving object


A physical quantity detection circuit includes a filter circuit, and a synchronous detection circuit that is provided at a downstream of the filter circuit and detects a signal in response to a physical quantity contained in an output signal of a vibrating element based on a drive signal for driving the vibrating element. The filter circuit has a cutoff frequency between a resonance frequency in a drive mode and a resonance frequency in a detection mode of the vibrating element and contains the resonance frequency in the drive mode in a passband..
Seiko Epson Corporation


09/24/15
20150271592 

Loudspeaker system with improved sound


A loudspeaker device is presented which includes a zeolite material comprising zeolite particles having a silicon to aluminum mass ratio of at least 200. For an increased pore fraction of pores with a diameter in a range between 0.7 micrometer and 30 micrometer shows an increased shift of the resonance frequency down to lower frequencies has been observed..
Knowles Ipc (m) Sdn. Bhd.


09/24/15
20150271580 

Loudspeaker system with improved sound


A loudspeaker device is presented which includes a zeolite material comprising zeolite particles having a silicon to aluminum mass ratio of at least 200. For an increased pore fraction of pores with a diameter in a range between 0.7 micrometer and 30 micrometer shows an increased shift of the resonance frequency down to lower frequencies has been observed..
Knowles Ipc (m) Sdn. Bhd.


09/24/15
20150270716 

Multi frequency power driver for a wireless power transfer system


A wireless power transfer system comprises a plurality of receivers (310, 320, 330) operating at a different resonance frequency from each other, wherein each of the plurality of receivers includes at least a load (311, 321, 331); a driver (300) that generates a power signal that encompasses a plurality of driving signals (411, 412, 413) having different frequencies that substantially match the different resonance frequencies of the plurality of receivers; and a pair of transmitter electrodes (304, 305) connected to the driver and wirelessly coupled to each of the plurality of receivers, wherein the power signal generated by the driver is wirelessly transferred from the pair of transmitter electrodes to each of the plurality of receivers to power its respective load, wherein a load of a receiver of each of the plurality of receivers is powered when the frequency of one of plurality of driving signals substantially matches a resonance frequency of the receiver.. .
Koninklijke Philips N.v.




Resonance Frequency topics: Resonance Frequency, Circuit Switch, Addressing, Signal Processing, Low Frequency, Ultrasonic, Transducer, Piezoelectric, Shift Module, Frequency Band, Blood Pressure, Wireless Power, Circuit Switching, Fault Detection, Ground Fault Detection Circuit

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