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This page is updated frequently with new Phase Shift-related patent applications.




 Method for communication via three pseudo-orthogonal waveforms patent thumbnailnew patent Method for communication via three pseudo-orthogonal waveforms
Aspects of the present disclosure aim at providing three pseudo-orthogonal waveforms that can be used for transmitting 3n bits (n bits over each waveform) at a given frequency. Use of such three pseudo-orthogonal waveforms can be used in applications such as qam to create a 3-dimensional qam, along with use in other like applications such as in orthogonal frequency-division multiplexing (ofdm), quadrature phase shift keying (qpsk), binary phase shift keying (bpsk), among others.
Tejas Networks Ltd.


 System and  high-speed analog beamforming patent thumbnailnew patent System and high-speed analog beamforming
In accordance with an embodiment, a radio frequency (rf) front end system includes a first chip that includes a frequency multiplier coupled to a first input terminal. The frequency multiplier is configured to form an upscaled reference signal by upscaling in frequency an oscillating reference signal received at the first input terminal.
Infineon Technologies Ag


 Amplifier apparatus and method patent thumbnailnew patent Amplifier apparatus and method
An amplifier arrangement for optimising efficiency at a peak power level and a back-off power level comprises a main power amplifier provided in a main branch for receiving a first signal, the main power amplifier being configured to operate in a class-b mode of operation. An auxiliary power amplifier is provided in an auxiliary branch for receiving a second signal, the auxiliary power amplifier being configured to operate in a class-c mode of operation.
Telefonaktiebolaget L M Ericsson (publ)


 High frequency phase shifter unit patent thumbnailnew patent High frequency phase shifter unit
The present disclosure shows a high-frequency phase shifter assembly having at least two high-frequency phase shifters stacked above one another which are arranged in at least one housing, wherein at least one housing plate is provided between the high-frequency phase shifters in the stack; and wherein the high-frequency phase shifters each have a rotatably supported pick-up element which is electrically coupled to a feed line via a coupling point arranged in the region of its rotary axle; and wherein the pick-up elements of the high-frequency phase shifters are mechanically coupled for the synchronous adjustment of the high-frequency phase shifters. Provision is made in this respect that the mechanical coupling of the pick-up elements of the high-frequency phase shifters takes place via a coupling arrangement spaced apart from the rotary axles of the pick-up elements..
Kathrein-werke Kg


 Oversampling in a combined transposer filterbank patent thumbnailnew patent Oversampling in a combined transposer filterbank
The present invention relates to coding of audio signals, and in particular to high frequency reconstruction methods including a frequency domain harmonic transposer. A system and method for generating a high frequency component of a signal from a low frequency component of the signal is described.
Dolby International Ab


 Integrated light source and light output control method patent thumbnailnew patent Integrated light source and light output control method
An integrated light source includes an optical circuit (3) including at least an interference optical switch and a light emitting unit (2) outputting optical signals having the same phase to multiple input ends, and an interference optical switch (21), for example, includes an optical coupler (33ab) coupling or splitting and outputting optical signals input through multiple optical waveguides to a first and a second output ports, a first optical waveguide (32a) having one end inputting an optical signal and the other end connected to the optical coupler (33ab), a second optical waveguide (32b) having one end inputting an optical signal, the other end connected to the optical coupler (33ab), and the same optical path length as the first optical waveguide (32a), and a phase shifter (31a) disposed on the first optical waveguide (32a) and switching phase differences of an optical signal transmitted through the first optical waveguide (32a) according to a control signal (s21).. .
Nec Corporation


 Tunable superstructure fiber grating device patent thumbnailnew patent Tunable superstructure fiber grating device
Application of non-uniform strain to discrete segments of a fiber grating mechanically changes the structure type of the associated device, e.g., the refractive index perturbation profile of the fiber grating is changed from uniform to phase shifted superstructured, or from chirped to superstructured. The strain may be applied with one or more deformable corrugated slides which are bonded to the fiber grating between the discrete segments.

 Dispersive target identification patent thumbnailnew patent Dispersive target identification
A first frequency agile waveform and additional frequency agile signal waveform(s) having in-phase and a quadrature phase components, each shifted by a different delta frequency, are transmitted in the direction of a possible dispersive target. Return signal(s) each comprising an in-phase component and a quadrature phase component associated with each of the frequency agile waveform(s) are received.
Firstguard Technologies Corporation


 Evanescent field opto-mechanical displacement sensor and phase shifter patent thumbnailnew patent Evanescent field opto-mechanical displacement sensor and phase shifter
A method and system described for sensing a displacement by receiving and propagating a laser light signal with an etched waveguide that is configured to enable an evanescent optical field above the waveguide surface. A movable perturber can be positioned so the perturber interacts with the evanescent optical field above the waveguide surface.
The Government Of The United States Of America, As Represented By The Secretary Of The Navy


 Fluid cylinder patent thumbnailnew patent Fluid cylinder
A fluid cylinder including a piston rod that is guided in a cylinder casing and on which a marking is provided with equidistantly arranged marks. An optical sensor unit is directed toward the marking.
Jungheinrich Aktiengesellschaft


Optical transmitter, optical transmission system and optical communication control method


An optical transmitter has an electrical signal generator configured to generate an electrical drive signal based upon input data; an optical modulator configured to modulate an input light by the electrical drive signal, the optical modulator having a first waveguide pair, a second waveguide pair, and a phase shifter that provides a phase difference between light waves travelling through the first waveguide pair and the second waveguide pair; and a controller configured to set the phase difference at the phase shifter to 0+n*π radians, where it is an integer, when a modulation scheme of the optical modulator is changed from a first scheme using four or more phase values to a second scheme using two phase values.. .
Fujitsu Limited


Wireless communication device, control wireless communication device and phase shifter


A wireless communication device includes a delay circuit to generate four or more delay signals, an amplifier circuit amplifying the four or more delay signals to generate four or more amplified delay signals, and a combiner circuit combining at least two amplified delay signals to generate an output signal, a second phase of a second amplified delay signal is between a first phase of a first amplified delay signal and a third phase of a third amplified delay signal, gains of the amplifier circuit for the four or more delay signals are controlled such that the output signal is generated by combining the first amplified delay signal and the third amplified delay signal, and a phase of the output signal is between the first phase of the first amplified delay signal and the third phase of the third amplified delay signal.. .
Fujitsu Limited


Pre-compensation of the phase shifting error


In this disclosure, methods for pre-compensation of the phase shifting error, and apparatuses for the same are disclosed. In one example, a device performs precoding of a digital signal, while acquiring information on an error caused by a phase shifting of the precoding.
Lg Electronics Inc.


Method and adjusting the timing of radio antenna tuning


A system that incorporates teachings of the present disclosure may include, for example, determining, by a controller of a mobile communication device, a phase shift criteria and an amplitude shift criteria associated with a modulation being implemented by the mobile communication device. The controller can determine a group of tuning steps that satisfies the phase and amplitude shift criteria and that provides a desired tuning step for a matching network of the mobile communication device.
Blackberry Limited


Power splitter with programmable output phase shift


Devices and methods for implementing an rf integrated circuit device operatively configured to provide the function of rf power splitter with programmable output phase shift are described. Configurable and adjustable phase shift units for use in such ic device are also described..
Peregrine Semiconductor Corporation


Hierarchically elaborated phased-array antenna modules and operation


A method of operation for a hierarchically elaborated phased-array antenna. Within a plurality of front end modules a phased-array processing die individually transforms phase and gain according to a register array.

Scanning pattern projection methods and devices


An apparatus including: a first conductive layer extending between opposed ends and at a reference potential; a second conductive layer extending widthwise between first and second ends and apart from the first conductive layer and including a resistive layer, substantially uniform between the first and second ends, such that a voltage potential applied across the second conductive layer ranges uniformly across the width of the second conductive layer from a first voltage potential at the first end to a second voltage potential at the second end; a liquid crystal layer between the first and second conductive layers to variably shift a phase of light incident thereto linearly based upon a voltage potential across the first and second conductive layers; and a diffraction grating extending between first and second ends and adjacent to one of the first and second conductive layers, the diffraction grating receiving and diffracting the phase shifted light.. .
Omnitek Partners Llc


Optical modulator with automatic bias correction


An optical modulator uses an optoelectronic phase comparator configured to provide, in the form of an electrical signal, a measure of a phase difference between two optical waves. The phase comparator includes an optical directional coupler having two coupled channels respectively defining two optical inputs for receiving the two optical waves to be compared.
Stmicroelectronics Sa


Frequency domain discrimination of tissue proteins


Devices and methods for performing frequency domain (fd) fluorescence lifetime spectroscopy are provided. The devices include a modulated light source, a focusing optical fiber, a detecting optical fiber, and a detector.
The Regents Of The University Of Michigan


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System and phase retrieval in lensless imaging


A method and system for use in reconstruction and retrieval of phase information associated with a two-dimensional diffractive response are presented. The method comprising: providing (75) input data indicative of one or more diffractive patterns corresponding to diffractive responses from one or more objects (50).
Yeda Reasearch And Development Co. Ltd.


Pump apparatus and marine vessel propelling machine


A pump apparatus includes a shaft, a first pump, and a second pump. The first pump includes a first driving gear disposed on the shaft in a first phase and rotatable with the shaft to feed a first operating fluid.
Showa Corporation


Systems and methods for measuring phase dynamics and other properties


Systems and methods for measuring phase dynamics and other properties (e.g. Intracranial pressure) are disclosed.
U.s.a. As Represented By The Administrator Of The National Aeronautics And Space Administration


Modulating system adapted to generate a multi-level quadrature amplitude modulation


A first number of second optical channels (24_2), each of the second optical channels (24_2) being associated bijectively with one of the first optical channels (24_1), each of the second optical channels (24_2) including the same elements as the first optical channel (24_1) with which the second optical channel (24_2) is associated and a second phase shifting unit able to introduce a phase shift of π/2.. .

Polarization state aligner (psa)


A system comprises: a polarization state aligner (psa) comprising: an input port; a first polarization beam splitter (pbs) coupled to the input port; a first phase shifter (ps) coupled to the first pbs; a first polarization rotator (pr) coupled to the first pbs; a first beam splitter (bs) coupled to the first ps and the first pr; a first output port coupled to the first bs; and a second output port coupled to the first bs.. .
Futurewei Technologies, Inc.


Wireless communication system and wireless communication receiver


A wireless communication system is provided that is capable of enabling more wireless devices to perform concurrent communication using a polarized wave technology. The wireless communication system is configured from carrier wave generation modules and, each of which generates a first carrier wave and a second carrier wave that have mutually different frequencies; a transmitter that has a rotational wave generation module that generates a rotational wave based on the first and second carrier waves; a rotational wave demodulation module that, for the rotational wave that is received, selectively demodulates an electric wave which has a desired rotational frequency, based on a result of multiplying a sine wave that has the same frequency as a frequency of a desired carrier wave and a sine wave that has the same frequency as the desired rotational frequency; and a receiver that has a rotational phase determination module that determines a phase shift of the received rotational wave from an output of the rotational wave demodulation module..
Hitachi, Ltd.


Method and correcting errors in a multiple subcarriers communication system using multiple antennas


A method for correcting errors in a multiple antenna system based on a plurality of sub-carriers and a transmitting/receiving apparatus supporting the same are disclosed. The method includes determining a phase shift based precoding matrix phase shifted at a predetermined phase angle, initially transmitting each sub-carrier symbol to a receiver in a packet unit by using the phase shift based precoding matrix, reconstructing the phase shift based precoding matrix to reduce a spatial multiplexing rate if a negative reception acknowledgement (nack) is received from the receiver, and retransmitting the initially transmitted sub-carrier symbol by using the reconstructed phase shift based precoding matrix or by changing the phase shift based precoding matrix using offset information fed back from the receiver or random offset information..
Lg Electronics Inc.


Signal generator and associated phase shift apparatus and method


It is presented a signal generator for providing a first signal on a first output and a second signal on a second output wherein the first signal and the second signal are provided with phase shift relative to each other. The signal generator comprises: a control loop controller; a comparator; a phase shifter, the phase shifter being arranged to provide the first signal on the first output and the second signal on the second output; and a phase error detector, the inputs of which are connected to the outputs of the phase shifter and the output of which is connected to an input of the control loop controller.
Telefonaktiebolaget L M Ericsson (publ)


Wideband transceiver for antenna array


Beam measurement values are computed by transforming a signal to a beamspace representation using a beamforming matrix that includes a plurality of columns that define a plurality of beams. A second plurality of beams is selected from the plurality of beams based on a power captured by each beam derived from the computed beam measurement values.
Wisconsin Alumni Research Foundation


Multi-phase motor control apparatus and electric power steering apparatus using the same


A multi-phase motor control apparatus that reduces the occurrence of the vibrations and the noises by setting the shift amount per time more finely after realizing a reduction in processing ability of a cpu by using a one-shunt type current detection circuit and an electric power steering apparatus using the same. The apparatus includes a pwm-signal generating section that generates plural second each-phase pwm-signals within two control periods based on the current estimation value and the carrier signal, and in a case that a phase shift amount of a predetermined phase in a just before control period is zero and a phase shift amount of a predetermined phase in a present control period is not zero, the phase shift control section gradually increases the phase shift amount from zero in the present control period and a next control period, and uses the second each-phase pwm-signals in the next control period..
Nsk Ltd.


Method to control three-phase inverter voltage


A method is provided to control the output voltage across an unbalanced load connected to a three-phase inverter, the method includes transformation of a set of three-phase voltage signals to a dq-coordinate system. Based on the transformation, a set of d-axis and a set of q-axis positive, negative and a set of zero sequence signals are generated.
Caterpillar Inc.


Optic-microwave frequency discriminator for laser frequency difference locking, and method thereof


An optic-microwave frequency discriminator includes: a fiber coupler receives and combines a first laser and a second laser, than the fiber coupler respectively generates and outputs a first light signal and a second light signal; a photodiode module respectively receives the first light signal and the second light signal, and converts the first light signal into a first microwave signal and converts the second light signal into a second microwave signal; a microwave phase shifter generates a shifted microwave signal by introducing a phase shift to the second microwave signal; a 90° microwave bridge combines the first microwave signal and the shifted microwave signal for generating a first bridge signal and a second bridge signal; a normalized balanced detection module generates an error signal; and a control module generates a controlling voltage signal according to the error signal for tuning a frequency of the second laser.. .
Beijing Qi-red Photoelectrical Technology Co., Ltd


Multi-band antenna


The present invention relates to a multi-band antenna, which comprises: a first antenna array of a first band configured by a radiation module of the first band; a (2-1)th antenna array of a common band between a second band and third band, the (2-1)th antenna array including radiation modules for the common band between the second band and third band; a (2-1)th phase shifter for receiving an input signal of the second band, distributing signals having phase difference therebetween to pre-configured radiation modules or groups of multiple radiation modules among the radiation modules of the (2-1)th antenna array, respectively, and then providing the signals; a (3-1)th phase shifter for receiving an input signal of the second band, distributing signals having phase difference therebetween to pre-configured radiation modules or groups of multiple radiation modules among the radiation modules of (2-1)th antenna array, respectively, and then providing the signals; a plurality of (2-1)th frequency combiners for combining one pre-configured signal among output signals of the (2-1)th phase shifter with one corresponding signal among output signals of the (3-1)th phase shifter, and providing a combined signal to each pre-configured radiation module among the radiation modules of the (2-1)th antenna array or a pre-configured group among groups of multiple radiation modules among the radiation modules of the (2-1)th antenna array.. .
Kmw Inc.


Low cost space-fed reconfigurable phased array for spacecraft and aircraft applications


A phased array antenna system including a front-end circuit having a plurality of antenna channels, each including a front antenna element and a rear antenna element, that provides a spatially combined beam. Each antenna channel includes a beam scan phase shifter and a true time delay phase shifter through which the receive signals or the transmit signals propagate.
Northrop Grumman Systems Corporation


Base station antenna


The present invention provides a base station antenna, including power dividers, network calibration modules, and connectors. The base station antenna further includes at least two phase shifters.
Huawei Technologies Co., Ltd.


Transmission balancing for phase shift mask with a trim mask


Implementations described and claimed herein include photolithography technology to alleviate the imbalance of transmission intensity induced. In one implementation, a method comprises exposing an alternating phase shift mask (alt-psm) and a trim mask, wherein an exposure placement of the trim mask is shifted relative to an exposure placement of the alt-psm..
Seagate Technology Llc


Distributer phase shifter for a hydraulic pump motor


The distributor phase shifter for a hydraulic pump motor (300) is provided for a hydraulic pump motor (1) which includes a pump motor housing (2) and a pump motor central rotor (3) to which an input-output distributor (43) presents an input-output angular collector of an internal conduit (44) and an input-output angular collector of an external conduit (89), which phase shifter includes a phase shift acting element (301) which is supported on the housing of the pump motor (2) in order to make the input-output distributor (43) rotate around its longitudinal axis and over a determined angular range.. .

Modulation scheme for high speed mud pulse telemetry with reduced power requirements


A method for transmitting data from a downhole location to a location at the surface of the earth includes: receiving data using a modulator disposed at the downhole location on a drill tubular in a borehole penetrating the earth and modulating the data using offset quadrature phase shift keying (oqpsk) and smooth transitions between phase shifts to produce a series of two-bit symbols having smooth transitions in transition intervals between phase shifts of both in-phase and quadrature-phase components of the oqpsk modulated data. The method further includes transmitting the series of two-bit symbols as an acoustic signal in drilling fluid disposed in the borehole using a mud-pulser, receiving the acoustic signal using a receiver disposed uphole from the downhole location; and demodulating the acoustic signal using a demodulator coupled to the receiver to provide demodulated data..
Baker Hughes Incorporated


Headlight for a motor vehicle


A headlight for a motor vehicle includes at least two light sources and a driver, which is arranged to vary the light intensities of the light sources with a phase shift to one another periodically between a minimum and a maximum and in the course of a period to set intermediate values between the maximum and the minimum. In a phase of the period, in which the first light source reaches the maximum of its light intensity, the light intensity of the second light source is situated at an intermediate value and increases..
Gm Global Technology Operations Llc


Multiple interferer cancellation for communications systems


An interference cancellation system (ics) may be used with a communication system to prevent or minimize interference from one or more sources. The ics may receive radio rf signals comprised of one or more signals of interest (soi) and multiple interfering signals.
L-3 Communications Corporation


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Impedance converter circuit and communication terminal device


An impedance converter circuit includes a transformer with a primary coil connected to a power feed port, a phase shifter circuit connected between a secondary coil of the transformer and an antenna port, and a bypass circuit connected between the power feed port and the antenna port. In a high band, an absolute value of impedance of the transformer viewed from the antenna port via the phase shifter circuit is higher than an absolute value of impedance of the bypass circuit.
Murata Manufacturing Co., Ltd.


Phase switching pll and calibration method


The phase-locked loop (pll) presented herein controls the phase of the output of the pll. To that end, the pll includes an oscillator that generates an output signal at an output of the pll responsive to a comparison between a reference signal input to the pll and a feedback signal derived from the output signal.
Telefonaktiebolaget Lm Ericsson (publ)


Light-emitting diode


A light-emitting diode, comprises an active layer for emitting a light with a phase and a peak wavelength λ in air, a reflector, a lower semiconductor stack between the active layer and the reflector, wherein the lower semiconductor stack comprises multiple semiconductor layers, and each of the multiple semiconductor layers has a refractive index ni, a thickness di and two sides each contacting adjacent layers to form two interfaces, wherein each interface has a phase shift when the light passes through the interface.. .
Epistar Corporation


System and identifying operating temperatures and modifying of integrated circuits


Aspects of the present disclosure include a computer-implemented method for identifying an operating temperature of an integrated circuit (ic), the method including using a computing device for: applying a test voltage to a test circuit embedded within the ic, the test circuit including a phase shift memory (psm) element therein, wherein the psm element crystallizes at a crystallization temperature from an amorphous phase having a first electrical resistance into a crystalline phase having a second electrical resistance, the second electrical resistance being less than the first electrical resistance; and identifying the ic as having operated above the crystallization temperature in response to a resistance of the test circuit at the test voltage being outside of the target operating range.. .
Globalfoundries Inc.


Structure and fixing phase effects on euv mask


This invention relates to a structure for fixing phase effects on euv mask which contains a repeating pattern with an assist feature, or a pattern with two different sized features in close proximity. The euv mask with the repeating pattern is capable of printing a group of trenches on a photoresist layer.
International Business Machines Corporation


Mr device with distribution network


An mr device has at least one distribution network for distributing an electrical input signal (to a number of feeding points of an mr antenna. The distribution network has at least one first signal output and one second signal output connected to a node, a first phase-shifting element disposed between the node and the first signal output, and a second phase-shifting element disposed between the node and the second signal output.

Clock phase adaptation for precursor isi reduction


Systems and methods of mitigating precursor isis for communication channels having time-variant precursor channel responses using digital circuit designs. A phase adaptation circuit is utilized in a receiver and configured to generate a phase control signal responsive to an input signal and based on the current precursor channel response.
Applied Micro Circuits Corporation


Space-time coding for zero-tail spread ofdm system in a wireless network


An example technique may include controlling receiving a first block of time domain symbols and a second block of time domain symbols, converting the blocks of time domain symbols to the frequency domain to create a first pre-equalized block of frequency domain symbols and a second pre-equalized block of frequency domain symbols, respectively, applying, a linear phase shift to the frequency domain symbols to compensate for a conjugating and time-reversing of corresponding pre-spread domain symbols being performed at a transmitter before spreading of the pre-spread domain symbols, and creating a first equalized block of frequency domain symbols and a second equalized block of frequency domain symbols as a function of the first and second pre-equalized blocks of frequency domain symbols wherein at least one of the first and second pre-equalized blocks of frequency domain symbols has the linear phase shift applied.. .
Nokia Solutions And Networks Oy


Power amplifier for compensating for phase delay characteristic and apparatus of synthesizing power


A power amplifier for compensating for a phase delay characteristic and a power synthesizing apparatus using the power amplifier are provided. A microwave frequency amplifying apparatus may include an amplifier configured to amplify a first power and to generate a second power, and a phase shifter configured to compensate for a phase of at least one of the first power and the second power and connected in series to the amplifier..
Electronics And Telecommunications Research Institute


Distinguishing false signals in cable locating


Discriminating between a cable locating signal and a false cable locating signal is described. A reference signal, which contains a locating signal frequency impressed on it, is transmitted in a way which provides for detection of a phase shift between the locating signal and the false locating signal.
Merlin Technology Inc.


Differential polarization interferometer


A differential polarization interferometer is provided. An interferometer performs direct measurement of phase shift of a light wave passed under an arbitrary angle through a sample composed of a transparent substrate holding a thin deposited test film, for metamaterial testing.
Institute Of Chemistry Of New Materials Of National Academy Of Sciences Of Belarus


Determining a zero current of an alternating current


A circuit arrangement for detecting a zero crossing of an alternating current is provided. The circuit arrangement includes a load through which the alternating current can flow, and an evaluation unit connected to the load and configured to evaluate an electrical voltage formed at the load, and to determining zero currents.
Siemens Aktiengesellschaft


Polarization-angle-division diversity wireless transmitter, wireless receiver, and wireless communication system


A wireless transmitter has a modulator modulating an information signal of a frequency f1 by a carrier wave of a frequency f2 to output a first modulated signal, a transmitting antenna transmitting the first modulated signal using a linearly polarized wave, and a motor rotating the transmitting antenna at a frequency f3 to rotate the outgoing linearly polarized wave at the frequency f3 thereby multiplexing the first modulated signal with a linearly polarized wave component and a horizontally polarized wave component, the two components being independent of each other. A wireless receiver has diversity receiving antennas receiving the signal on a plurality of polarization planes to obtain a plurality of input signals; a path difference phase shifter compensating each of the input signals for the phase shift stemming from path differences, and a composer composing the corrected received signals..
Hitachi, Ltd.


Dynamic partitioning of modular phased array architectures for multiple uses


Various embodiments are generally directed to techniques to dynamically configure a modular antenna array (maa) for multiple independent uses. An maa may include a plurality of antenna modules, each of the antenna modules comprising an array of antenna elements coupled to a radio frequency (rf) beamforming circuit, the rf beamforming circuit to adjust phase shifts associated with the antenna elements to generate an antenna beam associated with the antenna module, a dynamic configuration unit to receive an indication of a usage for a one of the plurality of antenna modules, and a main beamforming unit coupled to the dynamic configuration unit and each of the antenna modules, the main beamforming unit to generate signal adjustments relative to the one of the plurality of antenna modules to control the antenna beam associated with the one of the plurality of antenna modules based at least in part on the usage..

Detecting ac motor malfunction and distribution panel having the same


A detecting apparatus for ac motor malfunction by using a current delay property of an ac motor and outputting a malfunction signal to an alarming device is presented. The detecting apparatus for ac motor malfunction includes a voltage phase delay setting unit, a voltage phase conversion unit, a current phase detecting unit, a current phase conversion unit, a phase comparator, a sawtooth wave generating unit, a phase difference detecting unit, a phase shift bandwidth setting unit, a noise filtering unit, and a malfunction signal output unit..

Phase control for antenna array


Phase control apparatus and methods for antenna arrays are disclosed. Phase shifting for antenna beam steering or beamforming is broken into a fixed phase shift stage and a variable phase shift stage.

Discovering and using informative looping signals in a pulsed neural network having temporal encoders


Embodiments are directed to a computer implemented method of implementing a network having pathways. The method includes communicating among a plurality of units through the pathways.
International Business Machines Corporation


Discovering and using informative looping signals in a pulsed neural network having temporal encoders


Embodiments are directed to a computer network having pathways. The network includes a plurality of units configured to communicate through the pathways.
International Business Machines Corporation


Segmented directional backlight and related methods of backlight illumination


Backlit display systems, such as those employed with led backlit displays, including those configured for autostereoscopic operation, may employ synchronization between the backlight and the presentation of sequential left and right eye images at a frame rate exceeding approximately 100 hz. To successfully directionally illuminate isolated frames, the disclosed principles provide for segmenting the directional illumination and introducing a phase shifted, synchronized, pulsed drive scheme for the illumination segments.
Reald Inc.


Data transmission via multi-path channels using orthogonal multi-frequency signals with differential phase shift keying modulation


A method and an apparatus relating to an ofdm data communications system where the sub-carriers are modulated using differential quadrature phase-shift keying (dqpsk). The multi-carrier transmitted signal is directly generated by means of summation of pre-computed sample points.
Innurvation, Inc.


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Digital generation of multi-level phase shifting with a mach-zehnder modulator (mzm)


An apparatus comprising a first electrical driver configured to generate a first binary voltage signal according to first data, a second electrical driver configured to generate a second binary voltage signal according to second data, wherein the first data and the second data are different, and a first optical waveguide arm coupled to the first electrical driver and the second electrical driver, wherein the first optical waveguide arm is configured to shift a first phase of a first optical signal propagating along the first optical waveguide arm according to a first voltage difference between the first binary voltage signal and the second binary voltage signal to produce a first, multi-level phase-shifted optical signal.. .
Futurewei Technologies, Inc.


A multiphase pulse width modulator for class d audio amplifiers


A multiphase pulse width modulator (pwm) producing n mutually phase shifted pwm signals, which is well-suited for class d audio amplifier applications. The multiphase pwm includes (a) n+1 (n≧2) analog triangular waveform generators producing n+1 mutually phase shifted triangular waveforms, and (b) n+1 comparators each having a first input coupled to each of the n+1 triangular waveforms and a second input coupled to an audio signal to generate n+1 mutually phase shifted pwm phase signals.
Merus Audio Aps


Phase control for antenna array


Phase control apparatus and methods for antenna arrays are disclosed. Phase shifts at respective antenna element subunits along a first axis of an antenna array are controlled by applying a variable control voltage across a voltage divider to divide the variable control voltage into multiple voltages that are used to generate phase shift control voltages for phase shift elements corresponding to the respective antenna element subunits.
Huawei Technologies Canada Co., Ltd.


Joint reconstruction of electron density images


A method and a related system (ima) for reconstructing an image of an electron density in a subject pat. An x-ray radiation imager is used to expose the subject pat to radiation to receive projection data.
Koninklijke Philips N.v.


Symmetric target design in scatterometry overlay metrology


Metrology methods, systems and targets are provided, which implement a side by side paradigm. Adjacent cells with periodic structures are used to extract the overlay error, e.g., by introducing controllable phase shifts or image shifts which enable algorithmic computation of the overlay.
Kla-tencor Corporation


Telematics furtherance visualization system


A method and apparatus for use in a mobile device telemetry system is disclosed. The method and apparatus relate to a telematics furtherance visualization system.
Geotab Inc.


Bit interleaver for low-density parity check codeword having length of 64800 and code rate of 4/15 and quadrature phase shift keying, and bit interleaving method using same


A bit interleaver, a bit-interleaved coded modulation (bicm) device and a bit interleaving method are disclosed herein. The bit interleaver includes a first memory, a processor, and a second memory.
Electronics And Telecommunications Research Institute


Bit interleaver for low-density parity check codeword having length of 64800 and code rate of 2/15 and quadrature phase shift keying, and bit interleaving method using same


A bit interleaver, a bit-interleaved coded modulation (bicm) device and a bit interleaving method are disclosed herein. The bit interleaver includes a first memory, a processor, and a second memory.
Electronics And Telecommunications Research


Bit interleaver for low-density parity check codeword having length of 64800 and code rate of 3/15 and quadrature phase shift keying, and bit interleaving method using same


A bit interleaver, a bit-interleaved coded modulation (bicm) device and a bit interleaving method are disclosed herein. The bit interleaver includes a first memory, a processor, and a second memory.
Electronics And Telecommunications Research Institute


Detection path design for communication systems


Methods and apparatus are provided for detection path design for reflection coefficient estimation. In one novel aspect, a hardware-based phase estimator estimates a phase shift between the forward path signal and the reverse path signal.
Mediatek Inc.


Reflective mask and fabricating the same


A reflective mask includes a first reflection layer disposed on a mask substrate, a first capping layer disposed on the first reflection layer, a second reflection pattern disposed on a portion of the first capping layer, and a phase shifter disposed between the second reflection pattern and the first capping layer to cause a phase difference between a first light reflecting from the first reflection layer and a second light reflecting from the second reflection pattern. Related methods are also provided..
Sk Hynix Inc.


Phase shift detector process for making and use of same


A phase shift detector includes: an interferometer; and a microwave probe in electrical communication with the interferometer, the microwave probe including: a primary shield electrode; and a transmission electrode disposed proximate to the primary shield electrode, the transmission electrode and the primary shield electrode being exposed and arranged to produce an electric field, wherein the transmission electrode is isolated electrically from the primary shield electrode. A process for acquiring phase shift data includes: receiving a microwave radiation by a power splitter; producing a reference microwave radiation and a sample microwave radiation; communicating the reference microwave radiation to a reference arm; communicating the sample radiation to a sample arm; communicating the sample radiation from the sample arm to a microwave probe; subjecting a sample to the sample microwave radiation; producing a probe microwave radiation in response to subjecting the sample to the sample microwave radiation; communicating the probe microwave radiation to a power combiner; receiving the probe microwave radiation and the reference microwave radiation from the reference arm; and producing an interferometer signal in response to receiving the probe microwave radiation and the reference microwave radiation to acquire phase shift data..
National Institute Of Standards And Technology


Alkinyl-tolanes, liquid-crystal mixtures containing them and components for high-frequency technology


In which the parameters have the respective meanings given in the description, to the use thereof for high-frequency components, to liquid-crystalline media comprising the compounds, and to high-frequency components, in particular antennae, especially for the gigahertz range, comprising these media. The liquid-crystalline media serve, for example, for the phase shifting of microwaves for tunable ‘phased-array’ antennae..

Method and transmitting signaling


Embodiments of the present invention provide a method and an apparatus for transmitting signaling. The method includes: modulating, by using a binary phase shift keying bpsk manner of rotation by a first angle, at least partial signaling information carried in at least one signaling symbol in a signaling field of a data packet, to obtain modulated signaling information, where the first angle is not equal to 0 degrees or 90 degrees; and sending, to a receive end, the data packet that carries the modulated signaling information.
Huawei Technologies Co., Ltd.


Optical transmission system, wavelength control method and node


An optical transmission system includes: a transmission node to transmit wavelength-multiplexed light of a plural wavelengths arranged in a predetermined transmission band; and a reception node to receive the wavelength-multiplexed light, and to include a monitor to monitor a detection sensitivity indicating a sampling phase shift with respect to a phase of light corresponding to one among the received plural wavelengths, and a transmitter to transmit information indicating that the monitored detection sensitivity for light corresponding to a wavelength adjacent to an outer edge of the transmission band, among the plural wavelengths, has been reduced below a threshold value, to the transmission node, wherein the transmission node includes a receiver to receive information indicating a reduction in the detection sensitivity, and a controller to stop wavelength control of shifting the wavelength adjacent to the outer edge in a direction approaching the outer edge in response to reception of the information.. .
Fujitsu Limited


Multiple winding design for single or polyphase electric motors with a cage type rotor


An electric motor, with a cage type rotor, of single or polyphase design having a multiple winding design in a single stator core. Where the primary winding and secondary winding having a magnetically and electric circuit configured alignment, that is a 0° difference in the respective magnetic alignments or the electric circuitry alignments.
Performa, Llc


Stress-tuned planar lightwave circuit and method therefor


A planar lightwave circuit that can be optically coupled with an external device with low optical loss, while also providing low-power functional control over an optical signal propagating through the plc is disclosed. The plc includes a high-contrast waveguide region in a stress-inducing (si) phase shifter is formed such that it can control the phase of the optical signal.
Octrolix Bv


Accelerometer based on two-mode elliptical-core fiber sensor


Systems and methods are disclosed for sensing acceleration or vibration of a physical object, by placing a two-mode elliptical-core optical fiber on the object; receiving optical signals using photo-detector; and determining acceleration as perturbation effects on the differential phase shift between two spatial modes in each polarization or between two polarization modes in each spatial mode for the two-mode elliptical-core optical fiber.. .
Nec Laboratories America, Inc.


Lock-in thermography hot spot localization


A method for localizing a hot spot (27) in a sample (12), in particular an encapsulated device under test (dut), by using lock-in thermography (lit), where at least one heat source (23) of an electrical circuit is buried within the sample (12) and generated the hot spot (27) upon flow of current therein, comprises applying a non-harmonic excitation wave test signal at a lock-in frequency to the electrical circuit of the sample (12) to activate the heat source (23) for generating the hot spot (27); imaging the sample (12) using an infrared sensor (16) to obtain ir images of the sample (12) while the non-harmonic test signal is applied to the electrical circuit; and detecting a thermal response signal obtained from the imaging, the thermal response signal being in correlation to the thermal heat propagation within the sample (12). The invention is characterized in that applying the non-harmonic test signal comprises applying a non-harmonic signal at a single selected frequency; that the thermal response signal is subjected to a fourier transformation (ft) to break down the thermal response signal into a frequency spectrum containing harmonics signals of a base and higher harmonic signals to thereby obtain a plurality of frequency-specific response signals at multiple specific frequencies; that the phase shifts of each of the frequency-specific response signals is determined; that a frequency vs.
Fraunhofer-gesellschaft Zur FÖrderung Der Angewandten Forschung E. V.


Sparse tracking in acoustic radiation force impulse imaging


Sparse tracking is used in acoustic radiation force impulse imaging. The tracking is performed sparsely.
Siemens Medical Solutions Usa, Inc.


Mask blank, mask blank with negative resist film, phase shift mask, and producing pattern formed body using same


The present invention provides a mask blank used to produce a halftone phase shift mask to which arf excimer laser exposure light is to be applied. The present invention attains the object by providing the mask blank comprising a transparent substrate, and a light semitransmissive layer formed on the transparent substrate and made only of si and n or a light semitransmissive layer formed on the transparent substrate and made only of si, n and o, wherein the light semitransmissive layer has an extinction coefficient of 0.2 to 0.45 at a wavelength of arf excimer laser exposure light, a refractive index of 2.3 to 2.7 at the wavelength of arf excimer laser exposure light, and a transmittance of 15 to 38% at the wavelength of arf excimer laser exposure light, and further has a layer thickness of 57 to 67 nm..
Dai Nippon Printing Co., Ltd.


Differential twe mzm driver for silicon photonics


A differential twe mzm includes a differential driver, first and second capacitors, and first and second terminations. The differential driver includes a first differential output and a second differential output that collectively form a differential pair.
Finisar Corporation


Optical focusing device


An optical reflection focusing device, including a grating including an alternation of first and second regions having different refraction indexes, the grating including a plurality of sub-gratings, each including a plurality of first regions aligned along a plane parallel to the mean plane of the grating, said device including structures such that, for a collimated incident coherent light beam orthogonal to the mean plane of the grating, the rays of the beam reach with a non-zero phase shift different sub-gratings of the device.. .
Commissariat â L'energie Atomique Et Aux Energies Alternatives


Clock signal generating apparatus, clock signal generating method, and medium


A clock signal generating apparatus detects a phase difference between an input reference clock signal and a feedback signal to output a control signal based on the phase difference, generates the clock signal with a frequency based on the output control signal, generates a pattern by switching, at a certain time interval, between a plurality of patterns of a second phase shift amount, adds a first phase shift amount to the second phase shift amount having the generated pattern, determines a phase to be selected, so that a cycle of the phase-shifted clock signal matches the cycle of a clock signal changed by the first phase shift amount to which the second phase shift amount is added, selects the determined phase from among a plurality of phases, and generates a phase-shifted clock signal whose signal level changes in the selected phase for output as the feedback signal.. .

Circuits and methods for 2g amplification using 3g/4g linear path combination


Circuits and methods for 2g amplification using 3g/4g linear path combination. In some embodiments, a front-end architecture can include a first amplification path and a second amplification path, with each being configured to amplify a 3g/4g signal, and the first amplification path including a phase shifting circuit.

Methods and apparatuses for use in tuning reactance in a circuit device


Methods and apparatuses for use in tuning reactance are described. Open loop and closed loop control for tuning of reactances are also described.

Resonant dc/dc power converting circuit and controlling the same


A method for controlling a resonant dc/dc power converting circuit is provided. The resonant dc/dc power converting circuit having a converter output and a converter input comprises at least two converters having similar structures and outputs connected in parallel as said converter output, and a controller.

Torsional vibration damping arrangement for the powertrain of a vehicle


A torsional vibration damping arrangement has parallel first torque and second torque transmission paths that proceed from an input region, a coupling arrangement that communicates with an output region for superposing the torques conducted via the two paths, and a phase shifter arrangement for generating a phase shift of rotational irregularities conducted via the first torque transmission path relative to rotational irregularities of the second torque transmission path. The planet gear carrier has at least one base element with a first planet gear bearing location and a second planet gear bearing location.

Nox sensor diagnostic for an exhaust aftertreatment system


A method for diagnosing nox sensors in an exhaust aftertreatment system includes suspending reductant dosing in an exhaust aftertreatment system; purging a reductant deposit in a selective catalytic reduction (scr) system of the exhaust aftertreatment system; adjusting at least one of an ignition timing and an engine speed for an engine to adjust an engine out nitrogen oxide (nox) amount; receiving measured scr inlet nox data from a scr inlet nox sensor and measured scr outlet nox data from a scr outlet nox sensor; determining a phase shift between the measured scr inlet and scr outlet nox data; applying the determined phase shift to the scr outlet nox data; and determining a diagnostic feature based on the scr inlet nox data and the phase shifted scr outlet nox data regarding a state of the scr inlet and outlet nox sensors.. .

Volumetric induction phase shift detection system for determining tissue water content properties


A method and apparatus of determining the condition of a bulk tissue sample, by: positioning a bulk tissue sample between a pair of induction coils (or antennae); passing a spectrum of alternating current (or voltage) through a first of the induction coils (or antennae); measuring spectrum of alternating current (or voltage) produced in the second of the induction coils (or antennae); and comparing the phase shift between the spectrum of alternating currents (or voltages) in the first and second induction coils (or antennae), thereby determining the condition of the bulk tissue sample.. .

Method and node in a wireless communication network


Radio network node and method in a radio network node, for wireless communication with a user equipment in a wireless communication system in antenna streams, wherein the radio network node comprises a plurality of antenna elements, forming a multiple antenna array which is configured for massive mimo transmission. The method comprises beamforming a signal to be transmitted to the user equipment by splitting and phase shifting said signal; detecting a peak of power of one beamformed signal, exceeding a threshold value; manipulating said signal until the peak of power of the signal is lower than said threshold value; and transmitting said signal, to be received by the user equipment..

Phase switching pll and calibration method


The phase-locked loop (pll) presented herein controls the phase of the output of the pll. To that end, the pll includes an oscillator that generates an output signal at an output of the pll responsive to a comparison between a reference signal input to the pll and a feedback signal derived from the output signal.

High-selectivity low-loss duplexer


A high-selectivity low-loss duplexing system includes a first duplexer having a first port, a second port, a transmit port and a receive port. A second duplexer has a third port, a fourth port, an inverted transmit port and the receive port.

Impedance conversion circuit, antenna apparatus, and wireless communication apparatus


An impedance conversion circuit includes an auto-transformer circuit including a first inductor connected between a first port connected on a power supply portion side and a second port connected on an antenna side and a second inductor connected between a third port that is grounded and the second port; a first phase shifter with a first end connected to the first port; an inductor connected in series between a second end of the first phase shifter and the power supply portion; and a capacitor connected in series to the inductor and connected in series between the second end of the first phase shifter and the power supply portion.. .

Low crosstalk magnetic devices


In one aspect there is an apparatus. The apparatus may include an electronic circuit that generates a first magnetic field from a current in the electronic circuit.

Magnetic disk device and determining crossing a zone boundary


According to one embodiment, a magnetic disk device includes a magnetic disk in which servo patterns with different writing frequencies are recorded and divided into a plurality of zones in a cross-track direction; a magnetic head that is provided for the magnetic disk; and a controller to determine whether the magnetic head cross a zone boundary between the zones of the servo patterns, according to a predicted position of the magnetic head that is corrected with reference to a phase shift time between the zones of the servo patterns.. .

Hybrid drive of a motor vehicle and controlling same


The invention relates to a hybrid drive (1.1-1.10) of a motor vehicle, which features an internal combustion engine (vm) with a drive shaft (2), an electric machine (em) with a rotor (3) operable as a motor and as a generator, an automated manual transmission (4.1-4.6) carried out in a lay-shaft design with one input shaft (ge) and at least one output shaft (ga; ga1, ga2), along with a phase shifter gearbox (5.1, 5.2) formed in a planetary design with two input elements (6, 7) and one output element (8). With this hybrid drive, it is provided the phase shifter gearbox is arranged coaxially around a free end (9, 9′) of the output shaft (ga; ga2), and that the first input element (6) of the phase shifter gearbox is connected in a torque-proof manner to a hollow shaft (10) arranged in a coaxial manner around the output shaft, which, for coupling the internal combustion engine (vm) through a coupling shift element (k), is connectable in a torque-proof manner to an idler gear (11, 12) of the directly axially adjacent spur gear stage (z2, z3) of the manual transmission, and, for bypassing the phase shifter gearbox through a bypass shift element (l, l′), is connectable in a torque-proof manner to the second input element (7) or the output element (8) of the phase shifter gearbox, that the second input element (7) of the phase shifter gearbox is permanently in drive connection with the rotor (3) of the electric machine (em), and that the output element (8) of the phase shifter gearbox is connected in a torque-proof manner to the output shaft..

Non-invasive intracranial pressure monitoring system and method thereof


A non-invasive pressure monitoring system includes a first sensor placed proximate to a perfusion field of an artery receiving blood which emanates from the cranial cavity is configured to measure pulsations of the artery receiving blood which emanates from the cranial cavity artery and generate first output signals. A second sensor placed proximate to a perfusion field of an artery which does not receive blood emanating from the cranial cavity configured to measure pulsations of the artery which does not receive blood emanating from the cranial cavity and generate second output signals.

Method for correcting shading and scanner device


A shading correction of removing a plurality of shading factors is performed. A scanner device performs a shading correction in a manner such that a low-pass filter circuit (14) extracts a broad waveform change component caused by a temperature characteristic and a temporal change in light source or sensor sensitivity as shading factors, a phase/amplitude synchronizing circuit (15) extracts a phase shift of a cycle pattern of a lens array, a first multiplying circuit (16) synthesizes the waveforms of the extracted factors so as to form a correction-purpose image signal waveform, and the correction-purpose image signal waveform is divided from an image signal waveform subjected to a dark level correction (offset)..
Hitachiinformation & Telecommunication Engineering


Method and an antenna


There are disclosed various methods and apparatuses for an antenna. In some embodiments of the method a transmission signal is provided to a first feed point (126) of an antenna (102).
Nokia Technologies Oy


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Capacitive switch having high accuracy


A capacitive switch includes a drive circuit, a detection circuit, a reference circuit and an identification unit. The drive circuit outputs a drive signal and a switching signal, wherein the drive signal is outputted to a first node and a second node.
Pixart Imaging Inc.


Self-cascadable phase shifter


A self-cascadable phase shifter having a two corresponding pairs of input and output pins. Each pair of input and output pins are interconnected by phase delay circuitry that is isolated from phase delay circuitry interconnecting the other pair of input and output pins so that each pair of input and output pins produces, for example, a 90 degree phase shift.
Anaren, Inc.


Voltage-controlled ring oscillator with delay line


The invention relates to a multi-phase oscillator for generating multiple phase-shifted oscillator signals including: a ring oscillator having a number of concatenated oscillator delay cells which are interconnected to generate an oscillator signal, wherein phase-shifted oscillator signals are generated between the oscillator delay cells; a phase-blending unit configured to receive two phase-shifted oscillator signals and to generate a mid-phase oscillator signal whose phase shift is between the shifts of the two phase-shifted oscillator signals; and an interpolator delay line having a number of concatenated interpolator delay cells to generate further phase-shifted oscillator signals.. .
International Business Machines Corporation




Phase Shift topics:
  • Phase Shift
  • Modulation
  • Demodulation
  • Phase Offset
  • Objective Function
  • Carrier Frequency
  • Coordinates
  • Crystallin
  • Radio Communication
  • Base Station
  • Communications
  • Frequency Band
  • Euclidean Distance
  • Microscopy
  • Quantitative


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