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Modulation patents



      
           
This page is updated frequently with new Modulation-related patent applications. Subscribe to the Modulation RSS feed to automatically get the update: related Modulation RSS feeds. RSS updates for this page: Modulation RSS RSS


Modulation technique for transmitting and receiving radio vortices

Eutelsat Sa

Modulation technique for transmitting and receiving radio vortices

Display panel and display device

Sharp

Display panel and display device

Display panel and display device

Huawei Technologies

Method, terminal, and base station for transmitting information

Date/App# patent app List of recent Modulation-related patents
05/28/15
20150149872
 Data encoding in solid-state storage apparatus patent thumbnailnew patent Data encoding in solid-state storage apparatus
A method for encoding an input data block for storage in q-level cells of solid-state memory includes producing a preliminary block from the input data block by modulation encoding at least part of the input block into a first group of qary symbols via a first drift-tolerant encoding scheme, the preliminary block comprising the first group of qary symbols and any remainder of the input block not encoded via the first encoding scheme; generating parity data for the preliminary block via an error-correction encoding scheme; modulation encoding the parity data and any remainder of the input block into a second group of qary symbols via a second drift-tolerant encoding scheme; and supplying the qary symbols of the first and second groups for storage in respective q-level memory cells.. .
International Business Machines Corporation
05/28/15
20150148878
 Systems and methods of enhancing electrical activation of nervous tissue patent thumbnailnew patent Systems and methods of enhancing electrical activation of nervous tissue
Methods and systems for improving nerve stimulation are disclosed and are termed enhanced transcutaneous electrical stimulation (etens). One embodiment can be used for enhancing the excitation properties of neural tissue.
The Governing Council Of The University Of Toronto
05/28/15
20150148791
 Systems, devices and methods for cryogenic renal neuromodulation patent thumbnailnew patent Systems, devices and methods for cryogenic renal neuromodulation
Cryotherapeutic systems and cryotherapeutic-system components configured for renal neuromodulation are disclosed herein. A cryotherapeutic system configured in accordance with a particular embodiment of the present technology can include a console having a cartridge housing, a cartridge connector adjacent to the cartridge housing, and a supply passage fluidly connected to the cartridge connector.
Medtronic Ardian Luxemborug S.a.r.l.
05/28/15
20150148710
 Ultrasound modulation of the brain for treatment of stroke, brain injury, and other neurological disorders patent thumbnailnew patent Ultrasound modulation of the brain for treatment of stroke, brain injury, and other neurological disorders
A method for ultrasound modulation of the brain for treatment of stroke, brain injury, and other neurological disorders or the improvement of cognitive functioning in patients. The method may include identifying a stimulation site of a brain, where the stimulation site is associated with a brain disorder, applying ultrasound to the stimulation site, and initiating physical therapy.
Arizona Board Of Regents On Behalf Of Arizona State University
05/28/15
20150148678
 Ultrasonic diagnosis device and ultrasonic image acquisition method patent thumbnailnew patent Ultrasonic diagnosis device and ultrasonic image acquisition method
Provided is a technique that implements harmonic imaging in an ultrasound diagnostic apparatus, being unaffected by the voltage-dependent distortion and nonlinear characteristics of the transmit system in the ultrasound diagnostic apparatus that incorporates the transmit amplifier, the ultrasound probe, and the like, facilitating adjustment of the transmit voltage, and achieving a frame rate substantially equivalent to that of the conventional pi method. In the amplitude modulation method that synthesizes the transmit acoustic fields, thereby eliminating a basic wave component of an acoustic wave and creating an image from nonlinear component echoes being extracted, one transmit and receive out of plural transmits and receptions to obtain one scanning line also serves as the transmit and receive for obtaining other scanning line.
Hitachi Aloka Medical, Ltd.
05/28/15
20150148651
 Imaging system frequency modulation method patent thumbnailnew patent Imaging system frequency modulation method
A method is disclosed herein to add therapeutic functionality to medical imaging systems. The preferred embodiment of an imaging system frequency modulation method in accordance with the present invention adds at least one bioactive frequency that is part of the acoustic or electromagnetic frequency spectrum to the imaging system output frequency used to acquire an image in a medical imaging system by modulating said imaging system output frequency with said bioactive frequency..
05/28/15
20150148539
 Substituted azoanthracene derivatives and intermediates for preparation thereof patent thumbnailnew patent Substituted azoanthracene derivatives and intermediates for preparation thereof
The present invention relates to substituted azoanthracene derivatives and intermediates for the preparation thereof. The substituted azoanthracene derivatives and associated intermediates may be useful for the preparation of pharmaceutical compositions for the treatment or prevention of diseases, disorders, and conditions wherein modulation of the human glp-1 receptor is beneficial..
Transtech Pharma, Llc
05/28/15
20150148530
 Rna interference mediated inhibition of gene expression using chemically modified short interfering nucleic acid (sina) patent thumbnailnew patent Rna interference mediated inhibition of gene expression using chemically modified short interfering nucleic acid (sina)
The present invention concerns methods and reagents useful in modulating gene expression in a variety of applications, including use in therapeutic, diagnostic, target validation, and genomic discovery applications. Specifically, the invention relates to synthetic chemically modified small nucleic acid molecules, such as short interfering nucleic acid (sina), short interfering rna (sirna), double-stranded rna (dsrna), micro-rna (mirna), and short hairpin rna (shrna) molecules capable of mediating rna interference (rnai) against target nucleic acid sequences.
Sirna Therapeutics, Inc.
05/28/15
20150148351
 Novel polymorphic forms of 3-(1--6-oxo-1,6-dihydro-pyridazin-3-yl)-benzonitrile hydrochloride salt and processes of manufacturing thereof patent thumbnailnew patent Novel polymorphic forms of 3-(1--6-oxo-1,6-dihydro-pyridazin-3-yl)-benzonitrile hydrochloride salt and processes of manufacturing thereof
The present invention relates to 3-(1-{3-[5-(1-methyl-piperidin-4-ylmethoxy)-pyrimidin-2-yl]-benzyl}-6-oxo-1,6-dihydro-pyridazin-3-yl)-benzonitrile hydrochloride solvates and crystalline modifications thereof. The present invention further relates to processes of manufacturing these crystalline modifications as well as their use in the treatment and/or prophylaxis of physiological and/or pathophysiological conditions, which are caused, mediated and/or propagated by the inhibition, regulation and/or modulation of signal transduction of kinases, in particular by the inhibition of tyrosine kinases, e.g.
Merck Patent Gmbh
05/28/15
20150148346
 Compositions of 1,2,4-oxadiazole benzoic acid compounds and methods for their use patent thumbnailnew patent Compositions of 1,2,4-oxadiazole benzoic acid compounds and methods for their use
Novel 1,2,4-oxadiazole benzoic acid compounds, methods of using and pharmaceutical compositions comprising an 1,2,4-oxadiazole benzoic acid derivative are disclosed. The methods include methods of treating or preventing a disease ameliorated by modulation of premature translation termination or nonsense-mediated mrna decay, or ameliorating one or more symptoms associated therewith..
Ptc Therapeutics Inc.
05/28/15
20150148292
new patent

Bone morphogenetic protein pathway activation, compositions for ossification, and methods related thereto


The disclosure relates to compounds and compositions for bone formation, fracture treatment, bone grafting, bone fusion, cartilage maintenance and repair, and methods related thereto. In certain embodiments, the disclosure relates to compositions comprising one or more compound(s) disclosed herein, such as 2-(2-methoxybenzylidene)-1-indan-one; n-(4-arsonophenyl)glycine; 1,2-benzenedicarboxylic acid, 1-(1-methylheptyl)ester; (4′-hydroxybiphenyl-4-yl) (phenyl)methanone; 2,2-dimethylchroman-6-carboxylic acid, (4,7-dihydroxy-8-methyl-2-oxo-2h-chromen-3-yl)amide; ethyl 2-((4-chlorophenyl)thio)-1,3-benzothiazol-6-yl carbamate; ethyl (2-(azepan-1-yl)benzo[d]thiazol-6-yl) carbamate; porfiromycin; 1,3-benzodioxol-5-yl-[4-(3,4,5-trimethoxybenzoyl)-3-furyl]methanone; tricinolone acetophenonide; 2,4-bis(3,4-dimethoxyphenyl)-4h-pyrano[3,2-c]chromen-5-one; methyl 5-fluoro-4-methoxy-2,6-dioxohexahydro-5-pyrimidine carboxylate; 5-(naphthalen-1-yl)-1-phenyl-1h-tetrazole; 5-(2-phenylquinolin-4-yl)-1,3,4-oxadiazol-2-ol; n-[2,4,5-trimethyl-4-(trichloromethyl)cyclohexa-2,5-dien-1-ylidene]hydroxylamine; 4-benzoyl-3,4-dihydro-benzo[f]quinoline-3-carbonitrile; 2-nitro-3-phenylspiro[cyclopropane-1,9′-fluorene]; 3-[4-(furan-2-ylmethyl)-5-sulfanylidene-1,2,4-dithiazolidin-3-ylidene]-1,1-dimethyl-thiourea; (6-acetamido-7-methyl-5,8-dioxo-2,3-dihydro-1h-pyrrolo[1,2-a]benzimidazol-3-yl)2-methoxyacetate; 5-iodo-1h-indole-2,3-dione; 4,5-dihydro-1,2,9,10-tetramethoxy dibenzo[de,g]quinoline-6-carboxylic acid, ethyl ester; [2,6-bis(2,4-dimethylphenyl)-4-(2-methoxyacetyl)oxy-phenyl]2-methoxyacetate; 5,11-dimethyl-2-(2-piperidin-1-ylethyl)-6h-pyrido[4,3-b]carbazol-2-ium-9-ol; 2-[3-[[4-[(3-nitroacridin-9-yl)amino]phenyl]sulfamoyl]propyl]guanidine; 1-[[2-(dimethylamino)ethyl]amino]-7-hydroxy-4-methyl-9h-thioxanthen-9-one; 5-amino-1h-1,2,4-triazole-3-carboxylic acid, methyl ester; methyl n-cyano-n′-prop-2-en-1-ylcarbamimidothioate; 5,7-dinitro-8-quinolinol; 5-nitrosoquinolin-8-ol; cantharidin; 1,7-diaminoacridine; 3-methyl-3-(1-naphthyl)-2-benzofuran-1(3h)-one; dichlorolapachol; lycobetaine; 6-(1-aziridinyl)-2,3-dihydro-3-(propionyl)-7-methyl-1h-pyrrolo[1,8]-dione; 4-nitroestrone 3-methyl ether; 5,11-dimethyl-6h-pyrido[4,3-b]carbazole-1-carboxamide hydrochloride; 5-methoxysterigmatocysin; (6-acetamido-7-methyl-5,8-dioxo-2,3-dihydro-1h-pyrrolo[1,2-a]benzimidazol-3-yl)2-methoxyacetate; horminon; 7′,8′-dimethyl-2′-oxo-4′,4a′,6a′,7′-tetrahydro-2′h-spiro[oxirane-2,1′-pentaleno[1,6a-c]pyran]-5′-carboxylate; nybomycin acetate; 5h-[1,6]indeno[1,2-c]isoquinoline-5,12-dione; 2,3-dimethoxy-6-methyl-nitidine; iproplatin; 3-[(deoxyhexosyl)oxy]-2-(3,4-di-hydroxyphenyl)-6,8-dihdroxy-4h-1-benzopyran-4-one; 2-o-benzyl 8-o-methyl 3-(4-methylphenyl)sulfonyl-4,5-dioxo-6h-pyrrolo[3,2-e]indole-2,8-dicarboxylate; 6-bromo-5,8-dihydroxy-7-[4-[2-(2-hydroxyethoxy)ethyl]piperazin-1-yl]naphthalene-1,4-dione; 5-methylbenzo[c]phenanthridin-5-ium-2,3,8,9-tetrol; (6-acetyl-4-oxo-1,3-diphenyl-2-sulfanylidenethieno[2,3-d]pyrimidin-5-yl)-2,4-dichlorobenzoate; n—[c-[4-[bis(2-cyanoethyl)amino]-2-methylphenyl]-n-(4-methylanilino)carbonimidoyl]imino-4-methylbenzamide; gelcohol; curcumin; tirandamycin; noscapine; aristolochic acid; himbacine; fumagillin; fumitremorgin c; physalin b; derivatives, or salt thereof, for use in bone growth processes.
Emory University
05/28/15
20150147981
new patent

Switching device having a discharge circuit for improved intermodulation distortion performance


Radio-frequency (rf) switch circuits are disclosed providing improved switching performance. An rf switch system includes at least one field-effect transistor (fet) disposed between a first node and a second node, each having a respective source, drain, gate, and body.
Skyworks Solutions, Inc.
05/28/15
20150147069
new patent

Expurgated pulse position modulation for communication


An expurgated pulse position modulation (eppm) technique can be used to encode information for wireless transmission. Such an eppm technique can be compatible with a simple receiver architecture, such as including a shift register and pulse position modulation (ppm) decoder.
05/28/15
20150147018
new patent

Optical modulator


An optical modulator according to the present invention includes an optical branching section having at least one beam splitter and a mirror and configured to branch input light, a lens configured to converge the respective lights branched in the optical branching section, a plurality of phase modulation sections each configured to perform phase modulation of each light which is input thereto through the lens, and an optical combining section configured to combine a plurality of phase-modulated lights which are output from the plurality of phase modulation sections, and output modulated signal light.. .
Sumitomo Osaka Cement Co., Ltd.
05/28/15
20150146890
new patent

Adaptive bass processing system


An effective and simple psychoacoustic bass generation system generates a harmonic signal having inter-modulation controllable to remain below a threshold level and includes a high-pass filter configured to pass harmonics which are reproducible with fidelity by the loudspeaker or other transducer and a loudness matching block configured to compensate the loudness of the desired harmonics to match the loudness of the original signal.. .
Creative Technology Ltd
05/28/15
20150146835
new patent

Calibration arrangement for frequency synthesizers


An electronic device has a calibration arrangement for controlling a frequency characteristic of a pll circuit having a phase comparator having an output for generating a phase difference signal, a voltage controlled oscillator and a divider. The divisor of the divider is programmable, and the oscillator is also directly modulated by an oscillator modulation signal.
Freescale Semiconductor, Inc.
05/28/15
20150146817
new patent

Vector selection modulation-based multi-antenna transmission method, receiving


Provided is a vector selection modulation-based multi-antenna transmission method, including: for a group of data to be transmitted, using part of bit information in the group of data to select a weight corresponding to the group of data from k preconfigured weights; and performing constellation mapping modulation on residual bit information in the group of data, and using the selected weight corresponding to the group of data to weight the group of data after the constellation mapping modulation, wherein, the k is a natural number. Based on the method of the present document, the spectrum efficiency of the system can be greatly improved under the condition without adding a transmission antenna..
Zte Corporation
05/28/15
20150146816
new patent

Methods and apparatus to reduce signaling power


System, methods and apparatus are described that reduce the power consumed by a multi-level encoded communications link. In one example, different logic states of a 4-level pulse amplitude modulation encoded transmission consume greater power than other logic states.
Qualcomm Incorporated
05/28/15
20150146815
new patent

Modulation technique for transmitting and receiving radio vortices


A device for generating orbital angular momentum (oam) modes for radio communications. The device is designed to receive one or more input digital signals, each of which has a respective sampling period which is a respective multiple of a given sampling period, and occupies a frequency bandwidth which is a respective fraction of a given available frequency bandwidth.
Eutelsat Sa
05/28/15
20150146810
new patent

Method and performing soft demapping in rotated quadrature amplitude modulation (qam) based communication system


A method of performing a soft demapping, includes obtaining a signal from a symbol representing bits that is transmitted from a transmitter, and calculating a gradient of a reference line in a constellation for a bit based on a rotation angle and a channel state of the constellation. The method further includes selecting a candidate for each of lines that corresponds to a logic value of the bit from constellation points included in the constellation based on the signal and the gradient of the reference line, and calculating a log-likelihood ratio (llr) of the bit based on the signal and the selected candidate for each of the lines..
Samsung Electronics Co., Ltd.
05/28/15
20150146806
new patent

System and radio frequency carrier aggregation


A system and method for aggregation of a plurality of wireless communication signals in a common radio frequency transmitter. A multiple subchannel multiplexed (msm) signal within a frequency band, and having a communication protocol with pilot signals estimating a channel state and efficient signal demodulation with a mobile receiver is combined with another signal.
Plusn, Llc
05/28/15
20150146805
new patent

System and radio frequency carrier aggregation


A system and method for aggregation of a plurality of wireless communication signals in a common radio frequency transmitter. A multiple subchannel multiplexed (msm) signal within a frequency band, and having a communication protocol with pilot signals estimating a channel state and efficient signal demodulation with a mobile receiver is combined with another signal.
Plusn, Llc
05/28/15
20150146803
new patent

Wireless communication method and apparatus based on channel function


Disclosed are a wireless communication method of improving frequency efficiency based on a channel function in a wireless communication system and an apparatus thereof. The wireless communication system using a digital modulation scheme, includes: a transmitting apparatus which modulates a data signal to generate a modulation symbol, generates a channel symbol function corresponding to the modulation symbol, combines the modulation symbol with the channel symbol function to generate a transmission symbol to transmit the generated transmission symbol through a transmission antenna; and a receiving apparatus which receives the transmission symbol through a reception antenna, estimates a channel symbol function included in the transmission symbol, and extracts the data signal based on the modulation symbol included in the transmission symbol..
Electronics And Telecommunications Research Institute
05/28/15
20150146766
new patent

Use of multi-level modulation signaling for short reach data communications


A short reach communication system includes a plurality of communication serdes that communicate data over a short reach channel medium such as a backplane connection (e.g., pcb trace) between, for example, chips located on a common pcb. A multi-level modulated data signal is generated to transmit/receive data over the short reach channel medium.
Broadcom Corporation
05/28/15
20150146762
new patent

Wireless communication system


A wireless communication system includes a mobile device carried by a user and an in-vehicle apparatus equipped to a vehicle and communicatively connected with the mobile device. The in-vehicle apparatus includes a transmission unit, a transmission control unit, a reception determination unit, and a position determination unit.
Denso Corporation
05/28/15
20150146668
new patent

Method and configuring and transmitting pilot


Disclosed a method and an apparatus for configuring and transmitting a pilot, the method includes: a ue determines, according to a partitioned resource set, a parameter for generating an initial value of a demodulation pilot sequence; generates an initial value of the demodulation pilot sequence on the first resource set according to the first parameter, and generates an initial value on the second resource set according to the second parameter; and obtains the demodulation pilot sequence according to the initial value. In embodiments of the present invention, since parameters for calculating the initial value of the demodulation pilot sequence are respectively configured according to a pre-partitioned resource set, the initial value can be calculated according to the resource set to which the e-pdcch belongs and the set parameter, thus obtaining the demodulation pilot sequence for demodulating the e-pdcch, so as to improve demodulation performance of the e-pdcch..
Huawei Technologies Co., Ltd.
05/28/15
20150146622
new patent

Method, terminal, and base station for transmitting information


Embodiments of the present application provide a method, a terminal, and a base station for transmitting information. In the embodiments of the present application, subframe configuration information of a first carrier is obtained, where the subframe configuration information is used to indicate a type-1 subframe of the first carrier and a type-2 subframe of the first carrier, the type-1 subframe is used for the base station to transmit, in system bandwidth, first information including a first crs, the first crs is used for demodulation, and the type-2 subframe is not used for the base station to transmit a crs used for demodulation, so that the terminal can receive, according to the subframe configuration information and on the first carrier, information sent by the base station..
Huawei Technologies Co., Ltd.
05/28/15
20150146607
new patent

System and multicast communications in wi-fi networks


A system and method for reliable multicast communications is disclosed herein. In one aspect, a first station may receive a first multicast frame having a first modulation and coding scheme and a first sequence number.
Qualcomm Incorporated
05/28/15
20150146559
new patent

Transmission apparatus, reception apparatus, transmission method, and reception method


A reference signal generation unit 105 generates a reference signal and inputs it to resource-mapping units 106-1 to 106-t. There may be a plurality of types of reference signals depending on purposes.
Sharp Kabushiki Kaisha
05/28/15
20150146406
new patent

Blue light mixing method and system using the same


A blue light mixing method includes the steps of: providing a blue laser; disposing a wavelength conversion device on the light path of the blue laser wherein a part of the blue laser excites the wavelength conversion device to emit a wavelength-modulated blue light; and mixing the blue laser that hasn't undergone the wavelength modulation and the wavelength-modulated blue light.. .
Delta Electronics, Inc.
05/28/15
20150146318
new patent

Head position demodulation method and magnetic disk device


According to one embodiment, at demodulation of an a-phase burst pattern and a b-phase burst pattern arranged in a down-track direction so as to be different from each other in phase in a cross-track direction, the demodulated position of a magnetic head is calculated based on a sin component and a cos component in the a-phase burst pattern and a sin component and a cos component in the b-phase burst pattern.. .
Kabushiki Kaisha Toshiba
05/28/15
20150146131
new patent

Display panel and display device


A light modulation layer of a display panel in the present invention includes shape-anisotropic members and liquid crystal molecules. The projected area of the shape-anisotropic members on a first substrate and a second substrate is changed by altering the voltage applied to the light modulation layer, which changes the orientation of the liquid crystal molecules.
Sharp Kabushiki Kaisha
05/28/15
20150146089
new patent

Imaging systems and methods with pixel sensitivity adjustments


Imaging systems, such as time-of-flight imaging systems, and methods with pixel sensitivity adjustments. An embodiment includes a method, comprising: for a plurality of pixels having a first output and a second output, measuring the first outputs and the second outputs in response to a demodulation signal; and adjusting the demodulation signal such that a combination of the first outputs is substantially similar to a combination of the second outputs..
Samsung Electronics Co., Ltd.
05/28/15
20150146046
new patent

Solid-state imaging device, digital camera, and image processing method


According to one embodiment, a solid-state imaging device includes an image sensor and a resolution reconstruction circuit. The image sensor captures an object image.
Kabushiki Kaisha Toshiba
05/28/15
20150145911
new patent

Liquid ejecting apparatus


A liquid ejecting apparatus includes a signal modulation section that causes an original drive signal to be pulse-modulated to generate a modulation signal, a signal amplification section that amplifies the modulation signal to generate an amplification modulation signal, a coil that smooths the amplification modulation signal to generate a drive signal, a piezoelectric element that deforms when the drive signal is applied thereto, a cavity that expands or contracts due to deformation of the piezoelectric element, and a nozzle that communicates with the cavity and ejects a liquid in accordance with increase and decrease of a pressure inside the cavity. The coil is a metallic alloy type..
Seiko Epson Corporation
05/28/15
20150145748
new patent

Circularly polarized scalar impedance artificial impedance surface antenna


A circularly polarized artificial impedance surface antenna (aisa) includes an impedance modulated substrate having a modulated scalar impedance to a surface wave traversing a top surface of the substrate, wherein the impedance modulation has a plurality of intertwined lines of constant impedance, and wherein each line of constant impedance follows a spiral elliptical path.. .
Hrl Laboratories Llc.
05/28/15
20150145604
new patent

High efficiency radio frequency power amplifier circuitry with reduced distortion


Radio frequency power amplifier circuitry includes an amplifier element, power supply modulation circuitry, and bias modulation circuitry. The amplifier element is configured to amplify an rf input signal using a modulated power supply signal and a modulated bias signal to produce an rf output signal.
Rf Micro Devices, Inc.
05/28/15
20150145603
new patent

System linearization assembly and use in modifying distortion components


A system linearization assembly generally includes a delay device that receives an input signal from a signal source and delays the input signal by a predetermined delay function. An attenuation device receives a modified output signal from a signal modifying device, wherein the output signal is based on the input signal and includes a time varying parameter representing a plurality of frequency components including at least one component caused by non-linear intermodulation distortion.
The Aerospace Corporation
05/28/15
20150145602
new patent

Broadband rf power amplifier with active load modulation


An apparatus includes a main amplifier core and auxiliary amplifier core(s), an input signal splitter connected to inputs of the main amplifier core and the auxiliary amplifier core(s), and an output combiner connected to outputs of the main amplifier core and an the auxiliary amplifier core(s). The input signal splitter is configured to split an input signal into a first signal for the main amplifier core and at second signal(s) for the auxiliary amplifier core(s) according to frequency dependent nonlinear input drive functions.
Nokia Solutions And Networks Oy
05/28/15
20150145595
new patent

System linearization assembly and use in modifying distortion components


A system linearization assembly generally includes a filter that is coupled to a measuring device. The filter is configured to receive a signal that includes a time varying parameter representing a plurality of frequency components including at least one component caused by non-linear intermodulation distortion, such as an odd-order intermodulation distortion component.
The Aerospace Corporation
05/28/15
20150145528
new patent

Passive intermodulation measurement device and relay unit including the same


A passive intermodulation (pim) measurement device for measuring a pim in at least one of installation equipments and a distribution network within a distributed antenna system (das), the pim measurement device included in a relay unit of the das, the pim measurement device includes a pulse generation unit, a pim detection unit and a controller. The pulse generation unit generates a two-tone pulse signal having frequencies different from each other.
Solid, Inc.
05/28/15
20150145498
new patent

Pwm generation for dc/dc converters with frequency switching


A method for generating a pulse width modulation (pwm) control signal includes generating a sawtooth ramp signal at a first frequency under standard operating conditions using a ramp generator, generating a pwm square wave having a rising edge at a falling edge of the sawtooth ramp signal and a falling edge when the sawtooth ramp signal exceeds an error threshold, adjusting the frequency of the sawtooth ramp in response to a changed operating parameter of the ramp generator, and adjusting a peak input voltage of the ramp generator simultaneous with adjusting the frequency of the sawtooth ramp, thereby preventing one of a voltage overshoot and a voltage undershoot.. .
Continental Automotive Systems, Us, Inc.
05/28/15
20150145494
new patent

Device and tracking maximum power


Provided is a maximum power tracking device. The device includes: a battery outputting a first power; a switching unit changing the first power into a second power in response to a switching control signal; and a pulse modulation generation unit adjusting a pulse width of the switching control signal on the basis of the first power and adjusting a frequency of the switching control signal on the basis of the first power and the second power..
Electronics And Telecommunications Research Institute
05/28/15
20150145462
new patent

Method and current auto balancing for parallel converter systems


Parallel converter current imbalance control apparatus and methods in which individual converter ac currents are measured for each phase, and the ac voltage control modulation indices associated with the converters having the highest and lowest ac currents for a given phase are adjusted to counteract current imbalance between the converters.. .
Rockwell Automation Technologies, Inc.
05/28/15
20150145430
new patent

Combined digital modulation and current dimming control for light emitting diodes


A method includes providing an input signal identifying a desired brightness for one or more leds to first and second parallel control paths. The method also includes generating a digital modulation control signal using the first control path, generating a current control signal using the second control path, and driving the one or more leds using the control signals.
Texas Instruments Incorporated
05/28/15
20150145337
new patent

Power sharing device and method thereof


A power sharing device and method thereof are disclosed herein. The power sharing device includes a control unit, multiple regulators and multiple feedback circuits.
Accton Technology Corporation
05/28/15
20150144872
new patent

Optoelectronic integrated circuit


A semiconductor device includes a substrate supporting a plurality of layers that include at least one modulation doped quantum well (qw) structure offset from a quantum dot in quantum well (qd-in-qw) structure. The modulation doped qw structure includes a charge sheet spaced from at least one qw by a spacer layer.
The University Of Connecticut
05/28/15
20150144775
new patent

Method for determining absolute coding of an optical coding track


The invention concerns a method for determining absolute coding represented by code elements of an optical code track, with illumination of the absolute coding with light, modulating of some of the illuminating light on code elements, determining of the absolute coding as modulated light and continuously varying modulation of the light on neighbouring code elements.. .
Hexagon Technology Center Gmbh
05/28/15
20150144609
new patent

Welding or cutting power supply using phase shift double forward converter circuit (psdf)


A technique for dynamically adjusting an output voltage for a welding or cutting operation is provided. The technique allows for varying output voltage at the welding or cutting torch by manipulating the duty cycles of two forward converter circuits.
Illinois Tool Works Inc.


Popular terms: [SEARCH]

Modulation topics: Modulation, Duty Cycle, Reference Voltage, Comparator Circuit, Backlight Unit, Liquid Crystal Display, Liquid Crystal, Frequency Modulation, Intermodulation Distortion, Rf Switch Circuit, Frequency Detector, Holographic, Terrestrial, Ground Segment, Transponder

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