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Frequency Modulation patents

      

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




 Dc-to-dc output current sensing patent thumbnailDc-to-dc output current sensing
Method and circuits enable measuring output current in dc/dc converters operating in pulse frequency modulation (pfm) mode and in pulse width modulation (pwm) mode. The method is applicable to dc/dc converters using an inductor at the output.
Dialog Semiconductor (uk) Limited


 Photon modulation management system patent thumbnailPhoton modulation management system
Embodiments described herein provide systems for optimizing organism growth, destruction or repair, by controlling the duty cycle, wavelength band and frequency of photon bursts to an organism, through the high frequency modulation of photons in an individual color spectrum to the organism, where the photon modulation is based upon the specific needs of the organism. Devices for the optimization of organism growth, destruction or repair through the high frequency modulation of photons of individual color spectrum to the organism are also provided.
Xiant Technologies, Inc.


 Low-cost low-power lighting system and lamp assembly patent thumbnailLow-cost low-power lighting system and lamp assembly
In accordance with embodiments of the present disclosure, a method and apparatus includes an input having a first input terminal and a second input terminal for receiving an input waveform. In one example, the apparatus includes a capacitor having a first capacitor terminal and a second capacitor terminal, wherein the first capacitor terminal is coupled to the first input terminal, and at least one light-emitting diode coupled in series with the capacitor between the second capacitor terminal and the second input terminal, such that the light-emitting diode generates light in conformity with at least one of an amplitude modulation and a frequency modulation of the input waveform..
Philips Lighting Holding B.v.


 Method for passive approximate localization using frequency modulation and software defined radio patent thumbnailMethod for passive approximate localization using frequency modulation and software defined radio
A method for localizing for gps denied environments is provided with a plurality of broadcasting transmitters and a software-defined radio (sdr). A pre-processing stage and a query phase is executed for localizing an unknown location.

 High frequency light emission device patent thumbnailHigh frequency light emission device
Systems, apparatuses, and methods for modulating light at high frequencies by addressing the issue of direct modulation of long lifetime light emitters. Dynamic control of the local density of optical states (ldos) to exploit the differences between electric and magnetic dipole transitions allows for higher frequency modulation.
Brown University


 Electromagnetic interference (emi) for pulse frequency modulation (pfm) mode of a switching regulator patent thumbnailElectromagnetic interference (emi) for pulse frequency modulation (pfm) mode of a switching regulator
A circuit and method providing switching regulation configured to provide a pulse frequency modulation (pfm) mode of operation with reduced electromagnetic interference (emi) comprising an output stage configured to provide switching comprising a first and second transistor, a sense circuit configured to provide output current information sensing from an output stage and a current limit reference, a first digital-to-analog converter (dac) configured to provide signal to the current limit reference, an adder function configured to provide a signal to the first digital-to-analog converter (dac), and a linear shift feedback register (lsfr) configured to provide a signal to an adder function followed by the first digital-to-analog converter (dac), and the lsfr receives a clock signal from said output stage.. .
Dialog Semiconductor (uk) Limited


 Apparatus and method to mitigate phase and frequency modulation due to inductive coupling patent thumbnailApparatus and method to mitigate phase and frequency modulation due to inductive coupling
Described is an apparatus which comprises: a first clocking source having a first divider; a second clocking source having a second divider, wherein the first and second clocking sources are inductively coupled; and calibration logic to monitor clock signals associated with the first and second clocking sources and to generate at least one calibration code for adjusting at least one divider ratio of the first or second dividers according to the monitored clock signals.. .

 Power supply circuitry and adaptive transient control patent thumbnailPower supply circuitry and adaptive transient control
A control circuitry can be configured to receive an error signal indicating a difference between an output voltage of the power supply and a desired setpoint for the output voltage. According to one configuration, depending on the error signal, the control circuitry initiates switching between operating the control circuitry in a pulse width modulation mode and operating the control circuitry in a pulse frequency modulation mode to produce an output voltage.
Infineon Technologies Americas Corp.


 Patient specific frequency modulation adaption patent thumbnailPatient specific frequency modulation adaption
An input sound signal is processed to generate band pass signals that each represent an associated band of audio frequencies. Stimulation timing signals are generated for each band pass signal, including for one or more selected band pass signals using a timing function defined to determine a mapped instantaneous frequency by adjusting instantaneous frequency based on a frequency relation factor representing a relationship between: (1) the range of audio frequencies for the band pass channel, and (2) a patient-specific, channel-specific range of stimulation rates defined based on patient-specific pitch perception measurements to enhance patient pitch perception within the range of audio frequencies for the band pass channel, and iii.
Med-el Elektromedizinische Geraete Gmbh


 Stabilized power supply utilizing resonance circuit driven by carrier modulated both in frequency and amplitude patent thumbnailStabilized power supply utilizing resonance circuit driven by carrier modulated both in frequency and amplitude
Implementation of the priactical pwm controller provided with both the frequency modulation input and the amplitude modulation input is configured. The error voltage, which is the voltage difference between the output voltage and the reference voltage of the power supply, is fed back to both the frequency and the amplitude of the carrier.

Multi-channel neuromodulation system having frequency modulation stimulation

A neuromodulation system comprises a plurality of electrical terminals configured for being respectively coupled to electrodes, modulation output circuitry configured for respectively outputting a plurality of individual electrical pulse trains in a plurality of timing channels to the electrical terminals, wherein each of the timing channels prevents the respective pulse train from having a specific characteristic, and control circuitry configured for controlling the modulation output circuitry in a manner that outputs the pulse trains to a common set of the electrical terminals, thereby creating a combined electrical pulse train at the common set of electrical terminals that has the specific characteristic. A method of providing therapy to a patient comprises delivering a plurality of electrical pulse trains respectively in a plurality of timing channels to a common set of electrodes implanted within the patient, thereby creating a combined electrical pulse train at the common set of electrical terminals..
Boston Scientific Neuromodulation Corporation

Method of controlling electric motors, corresponding system, electric motor and computer program product

An electric motor is controlled by means of pulse-width modulated control signal having edge transitions occurring at certain transition count values of the pulses of a clock signal which is frequency-modulated with a step-wise frequency modulation (e.g., sscg or spread spectrum clock generation). A frequency unmodulated clock signal is provided having a fixed period indicative of the period of the pulse-width modulated control signals.
Stmicroelectronics S.r.l.

Method and obtaining soft switching in all the switching elements through current shaping and intelligent control

A method is shown to create soft transition in selected topologies by preserving the leakage inductance energy during the dead time and using several techniques to supplement the energy require to discharge the parasitic capacitance of the primary switchers and obtain zero voltage switching. One technique consists in a current pulse injection across the synchronous rectifiers during the dead time and prior the turn off of the synchronous rectifiers.
Rompower Energy Systems, Inc.

Trim for dual-port frequency modulation

Various methods provide for trimming the gain in a dual-port phase-locked loop (pll) of a radio transceiver. Use is made of the radio's demodulator to perform modulation accuracy measurements, thereby reducing the cost and complexity of external test equipment..
Sunrise Micro Devices, Inc.

Methods and systems for superchannel subcarrier monitoring using frequency modulation tones

Methods and systems for superchannel subcarrier monitoring using frequency modulated (fm) tones includes frequency modulating an optical subcarrier of a superchannel with a first frequency that is unique to the optical subcarrier and is chosen to be smaller than an optical transmission frequency for carrier data modulated onto the optical subcarrier. Then, downstream detection and monitoring of the optical subcarrier may be performed based on demodulation of the first frequency.
Fujitsu Limited

Systems and methods for source signal separation

A method includes receiving an input signal comprising an original domain signal and creating a first window data set and a second window data set from the signal, wherein an initiation of the second window data set is offset from an initiation of the first window data set, converting the first window data set and the second window data set to a frequency domain and storing the resulting data as data in a second domain different from the original domain, performing complex spectral phase evolution (cspe) on the second domain data to estimate component frequencies of the first and second window data sets, using the component frequencies estimated in the cspe, sampling a set of second-domain high resolution windows to select a mathematical representation comprising a second-domain high resolution window that fits at least one of the amplitude, phase, amplitude modulation and frequency modulation of a component of an underlying signal wherein the component comprises at least one oscillator peak, generating an output signal from the mathematical representation of the original signal as at least one of: an audio file; one or more audio signal components; and one or more speech vectors and outputting the output signal to an external system.. .
Kaonyx Labs Llc

Data communication using bandwidth modulation

Methods and apparatus to determine a level of inherent jitter for signals from a transmitter and a receiver, and modulate information onto a signal transmitted by the transmitter by using spot jitter (with bandwidth and center frequency modulation) and/or pulse width jitter in a region outside of a data region with inherent jitter to carry communication between systems.. .
Raytheon Company

Methods and data communication using bandwidth modulation

Methods and apparatus to determine a level of inherent jitter for signals from a transmitter and a receiver, and modulate information onto a signal transmitted by the transmitter by using spot jitter (with bandwidth and center frequency modulation) and/or pulse width jitter in a region outside of a data region with inherent jitter to carry communication between systems.. .
Raytheon Company

System and optimizing fundamental frequency modulation for a cascaded multilevel inverter

A system and a method for optimizing fundamental frequency modulation in a cascaded multilevel inverter (cmi) are provided. The cmi includes at least a first h-bridge module and a second h-bridge module connected in series with the first h-bridge module.
Board Of Trustees Of Michigan State University

Active remote detection of radioactivity based on electromagnetic signatures

A system for the active remote detection of radioactivity from a target of interest includes a first laser source for generating an ionizing laser beam when remotely directed on a radioactive target of interest, a second laser source for generating a laser probe beam on the radioactive target of interest, and a spectrometer configured to measure the frequency modulation of the probe beam caused by the ionization from the radioactive target of interest.. .
The Government Of The United States Of America, As Represented By The Secretary Of The Navy

Voltage regulator current load sensing

A dc-dc converter including digital circuitry for determining load current supplied to a load. In some embodiments the digital circuitry determines the load current differently based on whether the dc-dc converter is operating in pulse frequency modulation mode or pulse width modulation mode.
Endura Ip Holdings Ltd.

Dc-dc converter having digital control and reference pwm generators

A dc-dc converter operating in pulse frequency modulation (pfm) and pulse width modulation (pwm) modes includes a plurality of pwm signal generators. The pwm signal generators generate pwm signals with different duty cycles.
Endura Ip Holdings Ltd.

Method for operating a radar apparatus

A method for operating a radar apparatus having transmitting antennas and at least one receiving antenna, including: generating transmission spectra by complex modulation of mutually equidistant orthogonal ofdm subcarriers; transforming the transmitted spectra into the time domain; digital/analog conversion, high-frequency modulation of the transmitted spectra, and simultaneous emission of the modulated transmitted spectra via the transmitting antennas; demodulating and digitizing a received signal; generating one received spectrum per transmitted spectrum, a division of the ofdm subcarriers corresponding to their division in the transmitted spectra being carried out; eliminating the transmitted signal forms of the transmitted spectra from the received spectra; generating one radar image per received spectrum; evaluating the radar images in a distance dimension and in a speed dimension; and carrying out a signal evaluation for the received signal.. .
Robert Bosch Gmbh

Battery management unit and setting identifier by using frequency modulation

Disclosed is a battery management unit for setting a communication identifier through the frequency of a start signal. The battery management unit according to the present invention analyzes the frequency of a received start signal.
Lg Chem, Ltd.

Pfm scheme for boost and flyback converter in led backlight application

This application relates to systems, methods, and apparatus for controlling a switching frequency of a boost or flyback converter to be above an audible frequency range when operating the boost or flyback converter in a pulse frequency modulation (pfm) mode. The boost or flyback converter uses one or more switches for converting power for a display panel.
Apple Inc.

Transmitter, transceiver circuit, and wireless transmitting and receiving system

A transmitter includes a phase control circuit configured to receive a first and a second modulation signals, and a power amplifier configured to receive a third modulation signal. The phase control circuit includes a variable frequency divider, a frequency division ratio being controlled by the first modulation signal; a frequency modulation d/a converter configured to modulate the frequency by the second modulation signal; and a voltage controlled oscillator, including a varactor, configured to receive a first control voltage based on the first modulation signal and a second control voltage based on the second modulation signal.
Stichting Imec

Digital frequency modulation receiver with frequency variation signal and demodulation method used by the same

A digital frequency modulation receiver includes a phase capturer, an adder, a digital filter and a phase estimator. The phase estimator is used to generate a first phase value according to an input signal.
Richwave Technology Corp.

Power switching circuit and controlling same

A power switching circuit and a method for controlling the same are disclosed herein. The power switching circuit includes a frequency control circuit, a pulse modulation circuit, and a switching convertor.
Silicon Works Co., Ltd.

Low complexity super-resolution technique for object detection in frequency modulation continuous wave radar

In the proposed low complexity technique a hierarchical approach is created. An initial fft based detection and range estimation gives a coarse range estimate of a group of objects within the rayleigh limit or with varying sizes resulting from widely varying reflection strengths.
Texas Instruments Incorporated

Storage medium having stored therein vibration signal generation program, vibration signal generation system, vibration signal generation apparatus, vibration signal generation method, and storage medium having stored therein data output program

A vibration signal for vibrating a vibration apparatus is generated, and data obtained by encoding amplitude modulation information indicating a change in an amplitude and/or frequency modulation information indicating a change in a frequency are acquired. Then, the acquired data is decoded, and the vibration signal is generated using the decoded amplitude modulation information and/or frequency modulation information..
Nintendo Co., Ltd.

Synchronization of sbs suppression modulation to enable small offset, obi free, wdm signal transmission

Synchronizing sbs suppressing optical phase/frequency modulation of each of a plurality of optical transmitters can be achieved with a plurality of optical transmitters conveying a plurality of optical carriers; and a synchronizer coupled to each of the plurality of optical transmitters to synchronize the sbs suppressing optical phase/frequency modulation of each of the plurality of optical carriers.. .
Aurora Networks, Inc.

Robust and resilient timing architecture for critical infrastructure

A device for transmitting synchronized timing including a receiver, a transmitter, one or more processors, memory, and one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the one or more processors, the programs including instructions for receiving through the receiver a timing signal comprising first time information that is synchronized to a time standard, determining second time information based at least partially on the first time information, composing a message formatted in accordance with a global navigation satellite system (gnss) standard, wherein the message comprises the second time information, and transmitting the message through the transmitter on a radio signal having a frequency in the frequency modulation (fm) radio frequency band.. .
The Mitre Corporation

Selective high frequency spinal cord modulation for inhibiting pain with reduced side effects, and associated systems and methods

Selective high-frequency spinal cord modulation for inhibiting pain with reduced side effects and associated systems and methods are disclosed. In particular embodiments, high-frequency modulation in the range of from about 1.5 khz to about 50 khz may be applied to the patient's spinal cord region to address low back pain without creating unwanted sensory and/or motor side effects.
Nevro Corporation

Method and device for creating a control channel in an optical transmission signal and for extracting the information included therein

The invention relates to a method for creating a control channel in an optical transmission signal, wherein the optical transmission signal (sds,i, sus,i) includes an optical carrier frequency component, a higher frequency modulation component carrying user information to be transported from a first end to a second end of an optical transmission link and a lower frequency modulation component carrying control information, the higher frequency modulation component realizing a user channel and the lower frequency modulation component realizing the control channel, and wherein the lower frequency modulation component is created by amplitude modulation. According to the invention, the lower frequency modulation component includes a binary digital pilot tone signal component which corresponds to a pilot tone signal having a predetermined pilot tone frequency (fi)..
Adva Optical Networking Se

Memory system with multiple channel interfaces and operating same

A memory system including a memory controller with channel interfaces connecting memory groups via channels. Each channel interface communicates control, address and/or data (cad) signals to a channel-connected memory group synchronously with a slave clock derived from an input clock.

Selective high frequency spinal cord modulation for inhibiting pain with reduced side effects, and associated systems and methods

Selective high-frequency spinal cord modulation for inhibiting pain with reduced side effects and associated systems and methods are disclosed. In particular embodiments, high-frequency modulation in the range of from about 1.5 khz to about 50 khz may be applied to the patient's spinal cord region to address low back pain without creating unwanted sensory and/or motor side effects.
Nevro Corporation

Selective high frequency spinal cord modulation for inhibiting pain, including cephalic and/or total body pain with reduced side effects, and associated systems and methods

Selective high-frequency spinal cord modulation for inhibiting pain with reduced side effects and associated systems and methods are disclosed. In particular embodiments, high-frequency modulation in the range of from about 1.5 khz to about 100 khz may be applied to the patient's spinal cord region to address abdominal pain without creating paresthesia in the patient..
Nevro Corporation

Selective high frequency spinal cord modulation for inhibiting pain with reduced side effects, and associated systems and methods

Selective high-frequency spinal cord modulation for inhibiting pain with reduced side effects and associated systems and methods are disclosed. In particular embodiments, high-frequency modulation in the range of from about 1.5 khz to about 50 khz may be applied to the patient's spinal cord region to address low back pain without creating unwanted sensory and/or motor side effects.
Nevro Corporation

Selective high frequency spinal cord modulation for inhibiting pain with reduced side effects, and associated systems and methods

Selective high-frequency spinal cord modulation for inhibiting pain with reduced side effects and associated systems and methods are disclosed. In particular embodiments, high-frequency modulation in the range of from about 1.5 khz to about 50 khz may be applied to the patient's spinal cord region to address low back pain without creating unwanted sensory and/or motor side effects.
Nevro Corporation

Selective high frequency spinal cord modulation for inhibiting pain with reduced side effects, and associated systems and methods

Selective high-frequency spinal cord modulation for inhibiting pain with reduced side effects and associated systems and methods are disclosed. In particular embodiments, high-frequency modulation in the range of from about 1.5 khz to about 50 khz may be applied to the patient's spinal cord region to address low back pain without creating unwanted sensory and/or motor side effects.
Nevro Corporation

Method and device for transmitting and receiving signal by using multiple beams in wireless communication system

A method for receiving a signal by using m multiple beams in a multi-antenna system including n antenna elements, is provided in and embodiment of the present application. The method includes setting, by m beams, a beam direction for the m beams and a modulation frequency for frequency modulation of a beam response and generating the m beams according to the beam direction and the modulation frequency set by the beams.
Korea Advanced Institute Of Science And Technology

Optical receiver that has function to detect signal superimposed on optical signal and receiving optical signal

An optical receiver receives a wavelength multiplexed optical signal including wavelength channels. A superimposition signal is superimposed by frequency modulation on each of the wavelength channels.
Fujitsu Limited

Motor drive controller and controlling motor

A motor drive controller includes: a control circuit that controls an ac current flowing in a motor; a frequency modulation unit that frequency-modulates a speed of the motor when the motor is driven at a predetermined speed; and a current effective value controller that decreases an effective value of the ac current flowing in the motor as the speed of the motor modulated by the frequency modulation unit becomes closer to a resonant frequency of the motor.. .
Minebea Co., Ltd.

Spread spectrum for switch mode power supplies

A switch mode power supply may utilize a switching signal to control one or more power switches in the switch mode power supply. A switch mode power supply controller may generate and/or control this switching signal.
Linear Technology Corporation



Frequency Modulation topics:
  • Frequency Modulation
  • Modulation
  • Pulse Frequency Modulation
  • Pulse Width Modulation
  • Spinal Cord
  • Side Effects
  • Low Back Pain
  • Transmitter
  • Paresthesia
  • Magnetic Field
  • Switching Regulator
  • Portable Electronic Device
  • Electronic Device
  • Signal Processing
  • Transmitting And Receiving


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    This listing is a sample listing of patent applications related to Frequency Modulation for is only meant as a recent sample of applications filed, not a comprehensive history. There may be associated servicemarks and trademarks related to these patents. Please check with patent attorney if you need further assistance or plan to use for business purposes. This patent data is also published to the public by the USPTO and available for free on their website. Note that there may be alternative spellings for Frequency Modulation with additional patents listed. Browse our RSS directory or Search for other possible listings.


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