|| List of recent Phase Shift-related patents
|Method and pre-cursor intersymbol interference correction|
A multi-stage system and method for correcting intersymbol interference is disclosed. The system includes a first estimation module configured to sample an input signal to produce a first set of estimated data bits.
|Device for transmitting and/or modulating optical signals with passive phase shifters|
A device for transmitting and/or modulating in-phase and quadrature optical signals generated by an optical source. This device includes modulators each arranged for modulating intensity of optical signals depending on commands, and at least three main multi-mode interferometers set in series and arranged for transforming in combination a received optical signal with an initial phase state into a final optical signal with a final phase state differing from this initial phase state by an accumulated phase shift chosen from a group including 0, π/2, π and 3π/2 and depending from the intensity modulations carried out by the modulators..
Commissariat à L'energie Atomique Et Aux Energies Alternatives (“cea”)
|Phase reference shift for sar images generated from sub-aperture algorithms|
Embodiments are directed to generating a plurality of sub-images associated with a target via a synthetic aperture radar, processing, by a processor, the sub-images using a sub-aperture algorithm to generate an intermediate image, and applying, by the processor, a phase shift to the intermediate image to generate an output image.. .
|Resonantly driven power toothbrush having a pressure-sensing capability using a hall effect sensor|
The toothbrush includes a handle portion which includes a power drive system (14) and further includes a brushhead assembly (20), which includes a brushhead arm having a brush element (21) at a distal end thereof a drive train assembly (12) is responsive to a drive signal from the power assembly for converting the action of the power assembly to a motion of the brushhead assembly. A magnet (30) is secured to the rear of the drive train, with a hall effect sensor (32) mounted within the magnetic field produced by the magnet as the toothbrush moves in operation.
Koninklijke Philips N.v
|Wireless communication apparatus|
A wireless communication apparatus includes multiple antennas, a receiver for performing diversity reception using the antennas, a transmitter, a selector circuit connected to the antennas, a divider, and a phase shifter. The divider is located in a transmission line which connects the selector circuit to the transmitter and distributes a signal outputted from the transmitter among the antennas during transmission.
|System and 400g signal generation and coherent detection|
A novel digital signal processing scheme (dsp) for quadrature duobinary (qdb) spectrum shaped polarization multiplexed quadrature phase shift keying (pm-qpsk) based on multi-modulus blind equalizations (mmbe) is proposed and demonstrated with both simulation and experimental results. The key algorithms for this novel digital signal processing scheme include the cascaded multi-modulus algorithm (cmma) for blind polarization de-multiplexing, multi-modulus qpsk partitioning frequency offset estimation (foe) and two stage carrier phase recovery (cpr) with maximum likelihood phase estimation.
|Broadcasting transmission apparatus and method thereof for simulcast broadcasting|
Disclosed is a transmitter installed in a base station included in a wireless communication system for acquiring synchronization including: an ifft unit configured to perform ifft with respect to a qam signal into which a pilot signal is inserted to generate an ofdm signal; a direct sequence spectrum spread signal generator configured to phase shift keying (psk)-modulate a unique pseudonoise (pn) sequence specifying the base station to generate a direct sequence spectrum spread signal synchronized with the ofdm signal; and an rf transmitter configured to couple the generated ofdm signal and the direct sequence spectrum spread signal synchronized with the ofdm signal, transform the coupled signal into an rf signal, and transmit the signal transformed into the rf signal through an antenna.. .
Electronics And Telecommunications Research Institute
|Reflective array surface and reflective array antenna|
The present invention provides a reflective array surface. The reflective array surface includes a functional board that is configured to perform beam modulation on an incident electromagnetic wave and a reflection layer that is disposed on one side of the functional board and is configured to reflect an electromagnetic wave, where the functional board includes two or more functional board units and the reflection layer includes reflection units, where the number of reflection units corresponds to the number of functional board units, where the functional board unit and a reflection unit corresponding to the functional board constitute a phase-shifting unit that is used for phase shifting.
Kuang-chi Innovative Technology Ltd.
|Method and device for determining a relative alignment of two gps antennas in relation to one another|
Relative gps antenna alignment uses a phase shifter electrically connected to a first gps antenna. A combiner is electrically connected to the phase shifter, the second gps antenna and to a gps receiver.
|Shared aperture antenna array|
A shared aperture antenna array including an array of antennas is disclosed. Elements of neighboring antennas are shared to create additional antennas.
Battelle Memorial Institute
Gas concentration sensor with a suspended structure
A concentration sensor for at least one given gas comprising at least one suspended structure (2) with respect to a support, said suspended structure (2) being of an electrically conductive material and said structure having a low heat response time, means for biasing said suspended element (2) and means (8) for measuring the variation of the electric voltage at the terminals of the suspended structure (2), the biasing means (6) being formed by an alternating current source the intensity of which heats the suspended structure (2) and the frequency of which gives rise to a phase shift between a signal of the biasing means and a signal measured by the measuring means, and means for determining a phase shift variation due to a gas concentration variation and means for determining the concentration variation of said gas from the phase variation.. .
Commissariat A L'energie Atomique Et Aux Ene Alt
Drive circuit for a mems resonator
A drive loop circuit for a mems resonator. The circuit comprises a closed loop circuit to detect and amplify a signal of the mems resonator, a phase shifting circuit to phase shift the detected and amplified signal, and a feedback circuit to feed the detected, amplified and phase shifted signal as a feedback signal back to the mems resonator.
Murata Manufacturing Co., Ltd.
Method for detecting and treating variations in fluid
A diagnostic method for monitoring changes in a fluid medium in a patient's head. The method includes positioning a transmitter at a first location on or near the patient's head, the transmitter generates and transmits a time-varying magnetic field into a fluid medium in the patient's head responsive to a first signal; positioning a receiver at a second location on or near the patient's head offset from the transmitter, the receiver generates a second signal responsive to a received magnetic field at the receiver; transmitting a time-varying magnetic field into the fluid medium in the patient's head in response to the first signal; receiving the transmitted magnetic field; generating the second signal responsive to the received magnetic field; and determining, a phase shift between the transmitted magnetic field and the received magnetic field for a plurality of frequencies of the transmitted time-varying magnetic field..
Cerebrotech Medical Systems, Inc.
System and descrambling the phase of carriers in a multicarrier communications system
A system and method that demodulates the phase characteristic of a carrier signal are described. The scrambling of the phase characteristic of each carrier signal includes associating a value with each carrier signal and computing a phase shift for each carrier signal based on the value associated with that carrier signal.
Tq Delta, Llc
Clock signal generator
A clock generator suitable for use with memory devices enables generation of memory clock signals having odd or even division ratios, an optional phase shift and a 50% duty cycle. First and second clock gate circuits receive a base clock signal and an inverted version thereof, respectively, and are both gated by the output of two comparators that are set when a value of a down counter receiving the base clock signal reaches a predetermined value.
Reflection cancellation in multibeam antennas
A feed network for a multi-beam antenna is provided, including a first beam port, a second beam port, a beam-forming network coupled to the beam ports, and a cancellation circuit. The cancellation circuit is coupled to the first beam port and the second beam port before the beam-forming network.
A radio frequency module comprises an antenna assembly on a semiconductor integrated circuit that can transmit an electromagnetic signal in a frequency band of interest, or receive an electromagnetic signal in a frequency band of interest, or both. In the radio frequency module, a conductive layer that forms a signal ground plane.
Opto-electronic modulator utilizing one or more heating elements
Described herein are methods, systems, and apparatuses to utilize an electro-optic modulator including one or more heating elements. The modulator can utilize one or more heating elements to control an absorption or phase shift of the modulated optical signal.
System and avoiding dc bias in a homodyne receiver
A homodyne radar system includes a mixer that outputs a signal having a mixer output frequency that is a frequency difference between two input signals. When the frequency difference is small, low frequency noise may mask the actual signal.
Ford Global Technologies, Llc
Broadband, common-path, interferometric wavefront sensor
Hybrid sensors comprising shack-hartmann wavefront sensor (s-hwfs) and zernike wavefront sensor (z-wfs) capabilities are presented. The hybrid sensor includes a z-wfs optically arranged in-line with a s-hwfs such that the combined wavefront sensor operates across a wide dynamic range and noise conditions.
California Incapacitated Of Technology
Bit interleaver for low-density parity check codeword having length of 64800 and code rate of 7/15 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
Modulation through differentially delayed clocks
A clock modulator can include two configurable delay units and can receive a baseband signal and a clock signal. The two configurable delay units can generate two delayed clock signals, each with different delay amounts.
System and compensating power factor for electrical loads
A power factor controller (pfc) for an electrical load such as led lighting includes a power factor correcting converter for generating a sinusoidal input current. The pfc further includes a programmable controller for estimating a phase shifted multiplier.
General Electric Company
High-frequency phase shifter capable of shielding radiation
A high-frequency phase shifter capable of shielding radiation includes a conductive cover formed in a microstrip line form and configured to shield the radiation of microstrip lines, wherein the phase shifter operates in a frequency band of 2 ghz or more. An antenna may include a phase shifter configured in a microstrip line form and radiation elements supplied with phase-shifted signals from the phase shifter and configured to radiate electromagnetic waves in a frequency band of 2 ghz or more, wherein a conductive cover configured to shield the radiation of the phase shifter is formed in the antenna..
Gamma Nu, Inc.
Optical model employing phase transmission values for sub-resolution assist features
Optical simulation can be performed employing a calibrated printing model, in which a unique phase transmission value is assigned to each type of sub-resolution assist features (srafs). The printing model can be calibrated employing a mask including multiple test patterns.
International Business Machines Corporation
Dual differential doppler motion detection
A motion detector has an rf transceiver configured to transmit a first frequency rf signal and a second frequency rf signal into an area where motion is to be detected. A frequency difference between the first frequency signal and the second frequency signal is small and chosen to cause a calculated range dependent doppler phase shift between the first frequency and the second frequency.
Ninve Jr. Inc.
Wireless communication controlling wireless communication apparatus
A wireless communication apparatus includes: a first antenna; a second antenna; a variable phase shifting unit that changes a phase of a high frequency signal to be received or transmitted via the first antenna and the second antenna; and a phase-information table storage unit that stores a phase information table in which phase information is associated with each of a plurality of communication terminals as communication partners. When communicating with one communication terminal out of the plurality of communication terminals via the first antenna and the second antenna, the variable phase shifting unit changes a phase of a high frequency signal on the basis of phase information stored in the phase information table in association with the one communication terminal..
Panasonic Intellectual Property Management Co., Ltd.
Upstream noise suppression circuits and related radio frequency subscriber drop equipment and methods
Upstream noise suppression circuits include a splitter and a combiner that are connected by first and second communications paths. An information signal removal circuit is provided on the second communications path and is configured to remove an upstream information signal therefrom.
Commscope, Inc. Of North Carolina
Passive switch-based phase shifter
Certain aspects of the present disclosure provide apparatus for producing an output signal that may have a phase difference with respect to an input signal. One example phase shifting circuit for producing such an output signal generally includes a transmission line having first and second points, an impedance connected with a node and with a reference voltage level, a first switch connected with the first point of the transmission line and with the node, and a second switch connected with the second point of the transmission line and with the node, wherein a first signal input to the first point of the transmission line has a phase difference with a second signal output from the second point based on one or more properties of the transmission line when the first and second switches are open..
The present invention is related to a variable resistor and a variable capacitor having damping capabilities, more particularly, to a rc network having damping capability and phase shift capability constructed by the variable resistor and the variable capacitor.. .
Method and system for linearizing an amplifier using transistor-level dynamic feedback
The present disclosure describes a method and system for linearizing an amplifier using transistor-level dynamic feedback. The method and system enables nonlinear amplifiers to exhibit linear performance using one or more of gain control elements and phase shifters in the feedback path.
Phase shift circuit and antenna device
An antenna device includes a plurality of phase shift circuits to which distributed signals are respectively input and a plurality of antenna elements to which signals output from the respective phase shift circuits are input. At least one of the plurality of phase shift circuits has a signal line in which a first region in which paired dielectric members are disposed, a second region in which no paired dielectric members is disposed and a third region in which paired dielectric members are disposed are provided in this order along a propagation direction of a signal.
Hitachi Metals, Ltd.
Single microstructure lens, systems and methods
Systems and methods for providing enhanced image quality across a wide and extended range of foci encompass vision treatment techniques and ophthalmic lenses such as contact lenses and intraocular lenses (iols). Exemplary iol optics can include a circular surface structure which acts as a diffractive or phase shifting profile.
Amo Groningen B.v.
Interferometer and phase shift amount measuring apparatus
The present invention is directed to the provision of an interferometer and a phase shift amount measuring apparatus that can precisely operate in the euv region. The interferometer according to the invention comprises an illumination source for generating an illumination beam, an illumination system for projecting the illumination beam emitted from the illumination source onto a sample, and an imaging system for directing the reflected beam by the sample onto a detector.
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.
Optical interferometric real-time full-field thickness inspection and method thereof
A device for real-time thickness inspection is provided. An optical interferometric technique is used.
National Tsing Hua University
Measurement of film thickness on an arbitrary substrate
Embodiments of the present disclosure enable measurement of film properties, such as thickness, using reflectometry regardless of the underlying pattern on the substrate or base layer because the amount of phase shift resulting from the growing film at any wavelength is independent of the substrate or base layer. One embodiment of the method includes determining properties of the substrate from a time series data.
Applied Materials, Inc.
A vibration exciter, particularly for a vibration pile driver, includes at least four shafts disposed parallel to one another, on which two outer imbalance masses are disposed, in each instance, between which a central imbalance mass is positioned. The central imbalance mass is mounted on the shaft so as to rotate relative to the outer imbalance masses, in each instance.
Abi Anlagentechnik-baumaschinen-industriebedarf Maschinenfabrik Und Vertriebsgesellschaft Mbh
Digital down converter with equalization
A digital down converter with equalization includes an analog to digital converter (adc), a frequency divider, an fir-decimator-i, an fir-decimator-q and a frequency corrector. In operation, after some preprocessing, the fir-decimator-i performs signal transformation equivalent to a sequence of equalization, multiplication of the processed signal by a sine wave of a conversion frequency and low pass filtering, and the fir-decimator-q performs signal transformation equivalent to a sequence of equalization, multiplication of the processed signal by a sine wave of conversion frequency with a phase shift of 90° and low pas filtering.
Guzik Technical Enterprises
Enhanced phase shifter circuit to reduce rf cables
A multi-band antenna system includes an array of wide-band radiating elements and a multi-band electrical tilt circuit. The multi-band electrical tilt circuit includes a plurality of combiners, a first rf band variable phase shifter and a second rf band variable phase shifter implemented in a common medium.
Mask blank and manufacturing phase shift mask
A mask blank suitable for fabricating a phase shift mask having a thin film pattern composed of a material enabling dry etching with a fluorine-based gas and a substrate-engraved pattern. The mask blank 100 is used to fabricate a phase shift mask having a thin film pattern and a substrate-engraved pattern.
Phase shift mask, patterning method using the same and manufacturing display panel using the same
A phase shift device includes a phase shift mask which includes a transparent substrate, and a phase shift pattern which is provided on the transparent substrate, and includes a first area having a first thickness, a second area having a second thickness which is less than the first thickness, a first opening having a first opening width and defined at the first area, and a second opening having a second opening width and defined at the second area.. .
Samsung Display Co., Ltd.
Radio frequency position transducer
A positioning system and method of determining a position of a mobile unit is provided. The system and method include the use of radio frequency signals transmitted between the mobile unit and multiple base units having known and fixed locations.
Kinze Manufacturing, Inc.
Ofdm transmission in wireless lan system
An apparatus and method for orthogonal frequency division multiplexing (ofdm) transmission in a wireless local area network (wlan) system is disclosed, in which the apparatus for ofdm transmission in the wlan system includes a signal repetition unit to repeat an encoded signal based on a block unit and output the encoded signal and a repeated signal, an interleaver to interleave the encoded signal and the repeated signal and output an interleaved signal, a modulator to modulate the interleaved signal and output modulated symbols, and a phase rotation unit to phase shift the modulated symbols.. .
Electronics And Telecommunications Research Instit
Method and transceiving for beam forming in wireless communication system
An electronic device for beamforming and a method thereof in a wireless communication system are provided. The electronic device includes a plurality of antennas.
Samsung Electronics Co., Ltd.
Combined amplitude-time and phase modulation
A method for generating a compound signal wave with one or more substantially sinusoidal waveform(s) containing an encoded digital information combined with a variable phase changing waveform(s) producing a compound notched sinusoid waveform that includes at least a sine wave that is amplitude-time modulated and at least one phase modulated wave(s). The encoded digital information can be 1 to n bits per cycle limited only by hardware clock speeds.
Zvs voltage source inverter
Systems and methods relating to zero voltage switching for inverters. A full bridge inverter is used in conjunction with a passive auxiliary circuit and an output filter.
Rotational vibration damping arrangement for the drive train of a vehicle
A torsional vibration damping arrangement (10) for the drivetrain of a vehicle comprises an input region (50) to be driven in rotation around an axis of rotation (a) and an output region (55), and a first torque transmission path (47) and parallel thereto a second torque transmission path (48) which proceed from the input region, and a coupling arrangement (44) for superposing the torques guided via the torque transmission paths (47; 48), which coupling arrangement (44) communicates with the output region (55), and a phase shifter arrangement (43) for the first torque transmission path (47) for generating a phase shift of rotational irregularities guided via the first torque transmission path (47) relative to rotational irregularities guided via the second torque transmission path (48). The torsional vibration damping arrangement is formed with an axial distance between the phase shifter arrangement (43) and the coupling arrangement (44) to form a passage space for at least one driveshaft (39) of a vehicle..
Zf Friedrichshafen Ag
Apparatus and simultaneously transmitting and receiving orbital angular momentum (oam) modes
Provided is an apparatus and method for simultaneously transmitting and receiving orbital angular momentum (oam) modes. An apparatus for transmitting oam modes may include a mode multiplexing apparatus, and a matrix array antenna configured to output oam modes for electromagnetic waves based on mode signals, wherein the mode multiplexing apparatus may include hybrid couplers configured to generate a plurality of output signals having different phases and different amplitudes by mixing and distributing a plurality of input signals, and phase shifters configured to generate the mode signals by shifting the phases of the output signals..
Electronics And Telecommunications Research Institute
Travelling wave antenna feed structures
Techniques for implementing series-fed antenna arrays with a variable dielectric waveguide. In one implementation, coupling elements with optional controlled phase shifters are placed adjacent each radiating element of the array.
Ami Research & Development, Llc
Display device and initializing gate shift register of the same
Disclosed is a display device that comprises: a display panel; a level shifter shifting a start pulse, an initialization pulse, and n (n is an integer equal to or greater than 2)-phase shift clocks to a predetermined voltage; and a gate shift register comprising multiple stages respectively connected to scan lines of the display panel and shifting the start pulse in response to the n-phase shift clocks within a driving period defined by the start pulse to sequentially output a scan pulse, wherein the stages are simultaneously reset in response to the initialization pulse and the n-phase shift clocks within an initialization period preceding the driving period.. .
Lg Display Co., Ltd.
A display panel includes: a plurality of pixels; and a first phase shifting layer and a second phase shifting layer, which overlap the pixels, where the first phase shifting layer and at least a portion of the second phase shifting layer are alternately arranged with each other, and a phase difference between light having a predetermined wavelength transmitted through the first phase shifting layer and light having the predetermined wavelength transmitted through the second phase shifting layer is approximately 180 degrees.. .
Samsung Display Co., Ltd.
Method for determining the position of a mobile unit and installation for executing a method
A method for determining the position of a mobile unit which has a first coil, the mobile unit being disposed in a manner allowing movement relative to a stationary second coil, and a system for carrying out a method, the first coil having two part-windings, the second coil likewise having two part-windings, prevailing strengths of the inductive coupling of the part-windings of the first coil, or of the first coil to the part-windings of the second coil or to the second coil being determined, a phase shift of the induced ac-voltage signals being determined, a position range in which the phase shift is a biunique function of the position being determined from the coupling strengths, the position being determined from the phase shift.. .
Sew-eurodrive Gmbh & Co., Kg
Handling slower scan outputs at optimal frequency
An embodiment provides a circuit for testing an integrated circuit. The circuit includes a scan compression architecture driven by a scan clock and generates m scan outputs, where m is an integer.
Texas Instruments Incorporated
Radar apparatus and determining sign of velocity
A radar apparatus which can simply determine the sign of velocity of an object is provided. Laser light reflected by the object undergoes quadrature optical heterodyne detection performed by mixers, optical detectors, and a π/2 phase shifter, whereby i and q component signals are output.
Kabushiki Kaisha Toyota Chuo Kenkyusho
Synchronisation for transmit and receive symbols of all-digital receiver
A synchronisation method and device for transmit and receive symbols of an all-digital receiver. The method comprises the steps of: after receiving a sampling signal sent by a baseband processing chip, the clock signal of which is provided by a second clock source, a digital signal processor (dsp), the clock signal of which is provided by a first clock source, measuring a phase shift between a local sampling symbol and an air interface symbol, and acquiring the phase shift amount; according to the phase shift amount, adjusting a sampling opportunity for the sampling of a digital-analogue/analogue-digital converter; and when the sampling opportunity for the sampling of the digital-analogue/analogue-digital converter has been adjusted, adjusting an interface clock for data transmitting and receiving of the dsp so as to enable the data transmitting and receiving of the dsp to be synchronised with the sampling..
Hytera Communications Corp., Ltd.
Communication system and a mitigating leakage signals
A communication system that includes a transmit antenna, a radio frequency (rf) phase shifting module, an rf combiner, a first receive antenna and a second receive antenna; wherein the first and second receive antennas are located at a same distance from the transmit antenna; wherein the first and second receive antennas are arranged to receive first and second leakage signals resulting from a transmission of rf radiation by the transmit antenna; wherein the rf phase shifting module is configured to receive signals from the first and second receive antennas, to phase shift signals from at least one of first and second receive antennas to provide intermediate rf signals; wherein the phase shift caused by the rf phase shifting module introduces a destructive phase shift between the first and second leakage signals; wherein the rf combiner is configured to add the intermediate rf signals to provide combined rf signals.. .
Dsp Group Ltd.
Apparatus and methods for multiphase oscillators
Apparatus and methods for multiphase oscillators are provided. In certain implementations, an oscillator system includes a first multiphase oscillator and a second multiphase oscillator that are phase and frequency-locked.
Analog Devices, Inc.
Programmable phase shifter with tunable capacitor bank network
Methods and apparatus, including computer program products, are provided for a programmable phase shifter. In some example embodiments, there is provided an apparatus.
Motor control circuit and method
In accordance with an embodiment, a method for driving a motor includes generating a position indicator signal in response to a signal from the at least one hall sensor, wherein the position indicator signal has a first period. A phase shift value is generated using the position indicator signal.
Semiconductor Components Industries, Llc
Antenna arrangement for a multi-radiator base station antenna, the antenna having a feeding network based on air filled coaxial lines (1, 2, 3), wherein each coaxial line comprises an outer conductor (8) and an inner conductor (4, 5, 6), wherein an adjustable differential phase shifter including a dielectric part (9) is arranged in the antenna and said dielectric part being movable longitudinally in relation to at least one coaxial line (1, 2, 3).. .
Cellmax Technologies Ab
Systems and methods for ferrite circulator phase shifters
Systems and methods for ferrite circulator phase shifters are provided. In one embodiment, a multi-bit phase shifter comprises: a first switching circulator having a first port coupled to a first short circuit of a first phase length; and a second switching circulator coupled in series with the first switching circulator, the second switching circulator having a second port coupled to a second short circuit of a second phase length, the second switching circulator configured to switch in the second short circuit when the first short circuit is switched out by the first switching circulator, and switch out the second short circuit when the first short circuit is switched in by the first switching circulator..
Honeywell International Inc.
Compact amplitude and phase trimmer
In some examples, a device includes a waveguide transition section comprising a first mode suppressor, an attenuation section coupled to the first waveguide transition section via a first adjustable rotation joint, wherein the attenuation section is operable to attenuate the electromagnetic signal, and a first quarter-wave plate section coupled to the attenuation section, wherein the first quarter-wave plate section is operable to introduce a first differential phase shift between a first mode of the electromagnetic signal and a second mode of the electromagnetic signal. The device also includes a second quarter-wave plate section coupled to the first quarter-wave plate section via a second adjustable rotation joint, wherein the second quarter-wave plate section is operable to introduce a second differential phase shift between the second mode of the electromagnetic signal and the first mode of the electromagnetic signal..
Honeywell International Inc.
Electronic circuit for measuring rotational speed in a mems gyroscope and actuating the circuit
The electronic circuit measures angular speed in a gyroscope, which includes a mass connected to a spring and a damping element, an actuation capacitor for actuating the mass and a detection capacitor for detecting motion of the mass. The electronic circuit includes a measurement resistor, which is connected to the moving mass and has a variation in resistive value equal to the oscillation frequency of the mass.
Em Microelectronic-marin Sa
Dual antenna assembly with user-controlled phase shifting
An electrosurgical ablation system includes an energy source adapted to supply energy to an energy delivery device. The energy delivery device includes a handle assembly configured to couple a pair of antennas extending from a distal end thereof to the energy source for application of energy to tissue.
Analog signal diversity in multichannel communications
A multichannel communications medium may have two or more channels available for transmitting information. A first transmission signal and a second transmission signal may be prepared from a same analog signal to be transmitted on a first channel and a second channel.
Motor abnormality detection apparatus
A mgecu includes a locked state check part for checking whether a motor generator is in a locked state, a current value check part for checking whether a current command value or an actual current value as a current value is in a predetermined disconnection undetectable range including a current value of zero, a phase shift part for shifting a phase of the current command value so that the current command value is outside the disconnection undetectable range with a direction of rotation being unchanged in a case that the motor generator is determined to be in the locked state and the current value is determined to be in the disconnection undetectable range, and an abnormality check part for checking whether the motor generator has a disconnection in windings based on a result produced by controlling the motor generator with a phase-shifted current command value.. .
Modulation policy for modular multi-level converter
A modulation policy for a modular multi-level convertor, determining a switching state of each submodule by combining the current direction of each bridge arm and the capacitor voltage order of the submodules based on a carrier stacking method. The beneficial effects of the modulation policy are that: each phase only needs a modulation wave and n carriers, n being the number of the submodules of each upper bridge arm or lower bridge arm of the modular multi-level convertor, the modular multi-level convertor is enabled to output n+1 levels without carrier phase shift, the precision of a control algorithm is high, is easy for engineering realization, and saves software and hardware resources; the number of devoted submodules of each phase at any time can be guaranteed to be n, and the voltage balancing control of the capacitor voltage of the submodules can be achieved without a closed-loop control policy; and meanwhile, the modulation policy facilitates the adjustment of the voltage and power class of the modular multi-level convertor, and is free from the limitation of the number of levels..
China University Of Mining And Technology
Distributed antenna system robust to human body loading effects
A wireless handheld device comprises an internal antenna system that operates in first and second non-overlapping frequency bands with respective bandwidths. The antenna system includes: a ground plane; first and second antenna elements connected to a common input/output port, wherein a bandwidth of each of the antenna elements is less than at least one of the first and second operating frequency bandwidths and less than a frequency bandwidth for the antenna system; a combining structure to couple first and second signal transmission paths from the antenna elements to the common input/output port; and a phase shifting element on the first signal transmission path that imparts a phase delay to signals on the first signal transmission path.
Phase shift mask blank, manufacturing the same, and phase shift mask
Provided are a phase shift mask blank that is improved in the irradiation durability of a light-semitransmissive film (phase shift film), made of a material containing mainly a transition metal, silicon, and nitrogen, to exposure light having a wavelength of 200 nm or less and thus can improve the mask lifetime, a method of manufacturing such a phase shift mask blank, and a phase shift mask. The phase shift mask blank is used for manufacturing a phase shift mask adapted to be applied with arf excimer laser exposure light.
Spatial homogenization of the field strength of radiofrequency pulses
The embodiments relate to a method and a device for spatial homogenization of the field strength of voltages of radiofrequency pulses of a number of rf transmitters, wherein (a) the measured complex voltages, induced by the electromagnetic field of the antenna, of a plurality of field probes, which are disposed in the vicinity of the antenna, are respectively superposed with a fitting phase shift and used for establishing the new desired homogenized voltages of the radiofrequency pulses of the antenna by a complex transfer function, and/or (b) output signals of at least two directional couplers on the rf feed lines of the antenna are superposed in a respectively fitting phase-shifted manner and these are used to establish complex impedances or scattering parameters of a complex scattering matrix of the antenna, which are used for establishing the new desired homogenized voltages of the radiofrequency pulses of the antenna.. .
Sample clock generator for optical tomographic imaging apparatus, and optical tomographic imaging apparatus
A sample clock generator includes a first optical path and a second optical path through which input lights are guided, an optical phase shifter to shift a phase of the input light guided through the first optical path, an interference-light generating unit to combine a phase-shifted input light and the input light guided through the second optical path to thereby generate an interference light for sample clock, a splitting unit to split the interference light for sample clock into two split lights having different phases, one light receiving unit to at least receive one split light from among the two split lights having different phases, the other light receiving unit to at least receive the other split light, a signal generating unit to generate a sample clock signal based on signals outputted from the one light receiving unit and the other light receiving unit.. .
Led light source and lamp comprising such a led light source
The led strings are driven by very simple circuitry that can be supplied by mains supply voltage. Due to the phase shift stroboscopic effects are suppressed..
Device and channel estimation and signal demodulation
A device includes an input configured to receive a signal, wherein the signal includes at least one data block and a plurality of signal parts known to the device, a first signal part at the beginning of the data block and a second signal part at the end of the data block. The device further includes an equalizer and a pre-equalizer coupled between the input and the equalizer, wherein the pre-equalizer is configured to estimate a phase shift between the plurality of signal parts..
Feeding network for base station antenna
The present disclosure relates to feeding networks for base station antenna. Embodiments of the disclosure may comprise first and second phase shifters, and a 3-way power divider, including an input terminal, a first output terminal for feeding a first unit, a second output terminal connecting to the first phase shifter, and a third output terminal connecting to the second phase shifter.
Tongyu Communication Inc.
Microwave plasma lamp with rotating field
Provided is a microwave plasma discharge lamp apparatus which includes a rectangular waveguide having a rectangular shape one end of which is closed and the other end is open and receiving a microwave through an opening to put out linearly polarized microwaves; a discharge lamp; a resonator cavity, formed in a cylindrical shape, one end of which is open, which is disposed to surround the discharge lamp, and which is made of a conductive mesh, thereby allowing the passage of the light from the discharge lamp; and a phase shifter, which has a cross-shaped waveguide opened in a propagation direction of the linearly polarized microwaves, is disposed between the other end of the rectangular waveguide and one end of the resonator cavity, and receives the linearly polarized microwaves from the rectangular waveguide to generate elliptically polarized microwaves in the cylindrical resonator cavity. The elliptically polarized microwaves discharge the discharge lamp..
Taewon Lighting Co., Ltd.
Systems and methods for interferometric phase measurement
A method for measuring phase shift to detect irregularities of a surface is described. Additionally, a system for measuring phase shift to detect irregularities of a surface is provided.
Sunedison Semiconductor Limited (uen201334164h)
Rf power amplification and distribution systems, plasma ignition systems, and methods of operation therefor
An embodiment of a plasma ignition system for an internal combustion engine having up to n cylinders includes a power splitter, n phase shifters, n amplifiers, a power combiner network, and up to n radiation devices. The power splitter divides an input rf signal into n divided rf signals.
Freescale Semiconductor, Inc.
Efficient combined harmonic transposition
The present document relates to audio coding systems which make use of a harmonic transposition method for high frequency reconstruction (hfr), and to digital effect processors, e.g. So-called exciters, where generation of harmonic distortion adds brightness to the processed signal.
Dolby International Ab
Centripetal phase shift isolation control system, in deflection, dampen, dissipation, transposition and isolation of a stochastic vector
A cps dampen, dissipation, deflection and isolation control system includes a first structure comprising at least one chamber 121; a second structure comprising at least one chamber 122, wherein the chamber of the first structure 121 and the chamber of the second structure 122 are interposed by an elastic element 130, wherein the first structure 121 is moveably attached by signal to the second structure 122, wherein an intruding vector is identified for a qualified gait, wherein the first structure is configured in isolation of a vector intrusion of the second structure, whereby inertia dissipation of the first structure and substantial isolation of the intruding vector of the second structure is performed in a degree of freedom of the embodiment datum.. .
Two-phase interleaved converter and controlling the same
A two-phase interleaved converter includes two sub-circuits, a voltage controller, a current controller, a balancing controller and a phase shifter. The voltage controller receives the output voltage of the two sub-circuits and outputs a signal in proportion to the level of the output voltage.
Hyundai Motor Company
The invention relates to a doherty amplifier for amplifying an input signal at an operating frequency, comprising: a main amplifier; a first peak amplifier; a second peak amplifier, each of the amplifiers comprising an input for receiving the input signal and an output for providing an amplified signal, a plurality of peak amplifiers, each of the amplifiers comprising an input for receiving the input signal and an output for providing an amplified signal; a first input phase shifter; a second input phase shifter; a first capacitor coupled between the source and drain of the first peak amplifier; a first output phase shifter and a second output phase shifter.. .
The problem was that the noise superimposed on a touch electrode via the human body can incur erroneous touch determination by a touch sensor circuit. The invention provides a semiconductor device including a terminal to which a touch electrode may be coupled; a source voltage drop circuit generating a constant voltage; a phase shift circuit generating a phase shifted clock in response to a first clock and a phase control signal; and a switching circuit to which the constant voltage is supplied.
Renesas Electronics Corporation
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.
Communication system, receiver, and eye-opening measuring method
A communication system includes: a plurality of lanes; a plurality of transmission circuits respectively outputting data to the lanes in accordance with a transmission clock; and a plurality of reception circuits respectively receiving data from the lanes, each reception circuit includes: a clock data recovery circuit extracting own clock information from received data: a clock information switch circuit selecting either one of the own clock information of the reception circuit or another own clock information of an another reception circuit; a phase shifter generating a phase adjusted clock from a common reception clock source in accordance with clock information selected by the clock information switch circuit; and an input circuit taking in transmitted data in accordance with the adjusted clock, and the clock information switch circuit selects the own clock information in a normal operation and selects the another own clock information in an eye-opening measurement operation.. .
System and digital signaling
Systems and methods for communicating digital data associated with amplitudes and phases of a virtual periodic waveform having a designated period between components connected by n conductors include, in one embodiment, circuitry that converts a first amplitude and a first phase to a first corresponding voltage or current and applies the first corresponding voltage or current to a first one of the plurality of conductors, and converts the first amplitude and the first phase to (n−1) corresponding voltages or currents based on amplitudes of the periodic waveform phase shifted by about m*(360/n) relative to the first phase where m is indexed from one to (n−1) and applies each corresponding voltage or current to an associated conductor of the plurality of conductors. The systems and methods are particularly suited for reducing the number of conductors to obtain a desired i/o data rate/throughput for integrated circuit chips and wired networks..
Brilliant Points, Inc.