Images List Premium Download Classic

Resonance Frequency

Resonance Frequency-related patent applications - as published by the U.S. Patent and Trademark Office (USPTO).


loading
Resonance type power transmission system, transmitting device, and power supply position control system
Mitsubishi Electric Engineering Company, Limited
November 09, 2017 - N°20170325182

A transmitting device includes a transmission power supply to output electric power, whose frequency matches a resonance frequency of each of the transmitting antennas, based on input power, plural switches respectively provided for the transmitting antennas, the switches being switchable to connect or disconnect supply lines for supplying the electric power outputted by the transmission power supply to the transmitting ...
Radio frequency oscillator
Huawei Technologies Co., Ltd.
November 09, 2017 - N°20170324378

The embodiments of the invention relate to a radio frequency oscillator, the radio frequency oscillator comprising a resonator circuit resonant at an excitation of the resonator circuit in a differential mode and at an excitation of the resonator circuit in a common mode, wherein the resonator circuit has a differential mode resonance frequency at the excitation in the differential mode, ...
A passive wireless sensor for the measurement of ac electric field in the vicinity of ...
University Of Manitoba
November 09, 2017 - N°20170322246

A new passive wireless electric field sensor is disclosed. This sensor does not require direct attachment to a source of power which makes it passive. It is composed of a resonator loaded with varactors. The sensor is interrogated by a remotely located device transmitting and receiving the pulses of sine wave in the resonance frequency range of the sensor. Therefore, ...
Resonance Frequency Patent Pack
Download 103+ patent application PDFs
Resonance Frequency Patent Applications
Download 103+ Resonance Frequency-related PDFs
For professional research & prior art discovery
inventor
  • 103+ full patent PDF documents of Resonance Frequency-related inventions.
  • Exact USPTO filing data with full-text, images, drawings & claims.
  • Index pages: Table View and Image-Grid View layouts. All images in each PDF.
Implantable vibratory device using limited components
Toyota School Foundation
November 02, 2017 - N°20170318399

A prosthesis including an implantable component including an lc circuit, wherein a piezoelectric material forms at least a part of the capacitance portion of the lc circuit, the piezoelectric material expands and/or contracts upon the application of a variable magnetic field to the inductor of the lc circuit, the lc circuit has an electrical self-resonance frequency below 20 khz, and ...
Sealed pipe-loaded loudspeaker for improving low frequency response in portable devices
Toyota School Foundation
November 02, 2017 - N°20170318383

Embodiments are directed to a sealed pipe-loaded loudspeaker for augmenting low frequency response in a portable electronic device. A loudspeaker transducer is configured to radiate sound directly out of a forward radiation area and incidentally out of a rearward radiation area, and a sealed transmission line forming a closed pipe acoustically coupled to the transducer through which the rearward radiation ...
Magnetic recording medium for microwave assisted recording and magnetic recording device
Toyota School Foundation
November 02, 2017 - N°20170316799

Provided is a coating-type magnetic recording medium for microwave assisted recording. A magnetic recording medium for microwave assisted recording having a magnetic layer including ferromagnetic powder and a binder on a non-magnetic support, in which the magnetic layer exhibits an intrinsic ferromagnetic resonance frequency of 30. 0 ghz or more. A magnetic recording device including the magnetic recording medium and a magnetic ...
Resonance Frequency Patent Pack
Download 103+ patent application PDFs
Resonance Frequency Patent Applications
Download 103+ Resonance Frequency-related PDFs
For professional research & prior art discovery
inventor
  • 103+ full patent PDF documents of Resonance Frequency-related inventions.
  • Exact USPTO filing data with full-text, images, drawings & claims.
  • Index pages: Table View and Image-Grid View layouts. All images in each PDF.
Three phase medium voltage power conversion system for coupling a power source to a utility ...
Gamesa Innovation & Technlolgy, S.l.
October 26, 2017 - N°20170310233

The invention provides a three phase medium voltage power conversion system for coupling a power source to a utility grid comprising a power converter and a notch-filter. The switching control system of the inverter of the power converter is based on she-pwm patrons. The notch-filter is tuned to attenuate the frequency of the first harmonic that the switching control system ...
Method for manufacturing a piezoelectric device
Murata Manufacturing Co., Ltd.
October 26, 2017 - N°20170309808

A method for manufacturing a piezoelectric device that includes a substrate and a vibration portion that can include a membrane or a beam that is directly or indirectly supported by the substrate and arranged above the substrate. Moreover, the vibration portion includes a piezoelectric layer and the method includes forming the vibration portion and adjusting a resonance frequency of the ...
Controlling opening angle of a resonating mirror
Stmicroelectronics Ltd
October 26, 2017 - N°20170307873

A device described herein includes a movable mems mirror, with a driver configured to drive the movable mems mirror with a periodic signal such that the mems mirror oscillates at its resonance frequency. A feedback measuring circuit is configured to measure a signal flowing through the movable mems mirror. A processor is configured to sample the signal at first and ...
System and apparatus for assessing metallosis using magnetic resonance imaging
Medical College Of Wisconsin
October 26, 2017 - N°20170307709

A method includes: accessing mri data acquired from a joint area, the mri data including a series of spatially mapped spectral data points; generating mri images of the joint area; receiving information encoding a region of interest that encompasses a suspected metal particle deposition area over at least one of the mri images; constructing magnetic field maps using the mri ...
Distance measuring device, in particular for dielectric and metallic target objects
Astyx Gmbh
October 26, 2017 - N°20170307350

Disclosed is a distance measuring device, in particular for dielectric or metallic target objects, said device comprising a sensor with a resonance chamber and a resonance structure. The resonance structure has an element consisting of a dielectric material which has a narrowing at the edge, the resonance frequency of the resonance chamber being dependent on the distance between the element ...
Method for foreign object detection for an induction charging device and induction charging device
Astyx Gmbh
October 19, 2017 - N°20170302111

A method for foreign object detection for an induction charging device is described, including an oscillator circuit, in particular, for a hand-held power tool, a resonance frequency and an associated actual quality of the oscillator circuit being detected and the actual quality is subsequently compared to a setpoint quality as a function of the resonance frequency and a decision is ...
Device for regulating the motion of a mechanical horological movement
Astyx Gmbh
October 19, 2017 - N°20170300015

A device regulating motion of a mechanical horological movement includes: a frame; a resonator attached to the frame and including a first annular magnetic structure including n1 magnets arranged regularly in a circle and a resilient structure; a second annular magnetic structure including n2 magnets defining a central axis about which the structure rotates, n2 being different than n1. The ...
Resonance Frequency Patent Pack
Download 103+ patent application PDFs
Resonance Frequency Patent Applications
Download 103+ Resonance Frequency-related PDFs
For professional research & prior art discovery
inventor
  • 103+ full patent PDF documents of Resonance Frequency-related inventions.
  • Exact USPTO filing data with full-text, images, drawings & claims.
  • Index pages: Table View and Image-Grid View layouts. All images in each PDF.
Method for foreign object detection for an induction charging device and induction charging device
Astyx Gmbh
October 19, 2017 - N°20170299754

A method for foreign object detection for an induction charging device is described, including an oscillator circuit, in particular, for a hand-held power tool, a resonance frequency and an associated actual quality of the oscillator circuit being detected and the actual quality is subsequently compared to a setpoint quality as a function of the resonance frequency and a decision is ...
Mri birdcage coil with distributed excitation
Astyx Gmbh
October 19, 2017 - N°20170299671

A magnetic resonance radio frequency transmission device (140) for generating and applying a radio frequency excitation field b1 for the purpose of magnetic resonance examination comprises a birdcage coil (144) and a plurality of m radio frequency amplifier units for providing radio frequency power at a magnetic resonance frequency to the birdcage coil (144) via a plurality of m activation ports (158) selected out ...
Control apparatus for ac motor
Denso Corporation
October 12, 2017 - N°20170294863

A control apparatus for an ac motor includes an inverter, a voltage-command calculation unit calculating a vector used for giving a command to the inverter, a voltage-waveform specifying unit specifying, as a voltage waveform for operating the inverter based on the vector, a pulse pattern selected from previously stored voltage waveforms, or a voltage waveform of a pwm signal generated ...
Control apparatus for ac motor
Denso Corporation
October 12, 2017 - N°20170294862

In a control apparatus for an ac motor, a voltage waveform specifying unit of an inverter control unit specifies a voltage waveform for operating the inverter, based on a voltage vector calculated by a voltage command calculation unit. A spectrum amplitude extraction unit acquires values of bus current of the inverter and extracts the spectrum amplitude of the specific frequency ...
Anti-vibration device for vehicle
Nissan Motor Co., Ltd.
October 12, 2017 - N°20170292444

A variable compression ratio engine (1) is provided with a multi-link mechanism (101) between a piston (102) and a crankshaft (103). The multi-link mechanism (101) includes an upper link (104), a lower link (105) and a control link (106). An anti-vibration device (6) for vehicles is attached between the upper part of the engine (1) and a vehicle body to which the engine (1) is mounted. The anti-vibration device (6) includes a ...
Multi-frequency excitation
King Abdullah University Of Science And Technology
October 12, 2017 - N°20170291811

Embodiments of multi-frequency excitation are described. In various embodiments, a natural frequency of a device may be determined. In turn, a first voltage amplitude and first fixed frequency of a first source of excitation can be selected for the device based on the natural frequency. Additionally, a second voltage amplitude of a second source of excitation can be selected for ...
Wireless power supply device, wireless power receiving device and wireless power transmission system
Minebea Mitsumi Inc.
October 05, 2017 - N°20170288462

A wireless power supply device including a power supply coil for wirelessly transmitting electric power to a power receiving device, a driving circuit for outputting pulse electric power for driving the power supply coil at the resonance frequency of the power receiving device to the power supply coil, a first radio module for receiving rectified voltage information about rectified voltage ...
System and method for parameter measurement in well
Sercel-grc Corp
October 05, 2017 - N°20170284189

System and method for measuring a parameter within a well. The method includes connecting a gauge to a first end of a cable and connecting a vector network analyzer to a second end of the cable, lowering the gauge inside the well, generating a signal with the vector network analyzer and sending the signal along the cable to the gauge, ...
Loading