|| List of recent Phase Shift-related patents
|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.
Standing wave reduction in direct field acoustic testing
A direct field acoustic testing system includes at least two acoustical transducer groups and a signal modifier for introducing separately controllable time delays or phase shifts for each acoustical transducer group so as to provide an acoustic field conforming to a pre-determined specification with reduced deviations due to constructive or destructive interference between the acoustical transducer groups.. .
Msi Dfat Llc
Multi-beam combining apparatus
A multi-beam combining apparatus includes a phase shifting section, a superposing section, an observing section and a phase control section. The phase shifting section generates a plurality of phase-shifted laser beams by shifting the phase of each of the plurality of laser beams.
Microwave oven using solid state amplifiers and antenna array
A microwave oven may include a housing defining an oven cavity therein configured to receive material to be heated, and a plurality of solid state microwave generating cells carried by the housing. At least one feedback circuit may be carried by the housing and configured to detect em radiation within the oven cavity not absorbed by the material to be heated.
Compression/decompression progressive d'un flux numerique video comprenant au moins une image entrelacee
The subject of the present invention pertains to a device (100) for decompressing a digital video stream comprising at least one compressed image (i′), said device comprising: —a means of progressive decompression (m4) configured so as to decode said at least one compressed image (i′), and —a means of inverse phase-shifting (m5) configured so as to horizontally and/or vertically phase shift the chrominance plane, for each field (tf, bf) of said at least one decompressed image (i′), according to a determined horizontal (dhi) and/or vertical (dvi) inverse phase shift value, said horizontal (dhi) and/or vertical (dvi) inverse phase shift value being dependent on the horizontal (dh) and/or vertical (dv) phase shift values.. .
Fine phase estimation for highly spectrally efficient communications
A receiver may process a received signal to generate a processed received signal. The receiver may generate, during a sequence estimation process, an estimate of a phase error of the processed received signal.
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.
Quasi-differential rf power amplifier with high level of harmonics rejection
A quasi-differential amplifier with an input port and an output port. The amplifier has a phase shifter network with a first port connected to the input port, a second port, and a third port.
Halftone phase shift photomask blank, halftone phase shift photomask and pattern exposure method
A halftone phase shift photomask blank comprising a transparent substrate and a halftone phase shift film is provided. The phase shift film consists of si and n, or si, n and o, and is free of transition metals.
Shin-etsu Chemical Co., Ltd.
Time of flight camera system
A light propagation time camera system and a method for operating such a system, in which—in a distance measurement a first range-related variable is ascertained using a phase shift in an emitted and received signal for a first modulation frequency,—and in a control measurement a second range-related variable is ascertained, wherein the control measurement is performed at a second modulation frequency, which differs from the first modulation frequency, and the control measurement is performed with a smaller number of phases than the distance measurement is provided.. .
Ifm Electronic Gmbh
Radar antenna assembly
A radar antenna assembly includes a microstrip patch, a hybrid coupler, a phase shifter, and a power divider. The microstrip patch is configured to emit a radar signal.
Delphi Technologies, Inc.
Transistor switches with single-polarity control voltage
Contrary to phase shifters which require complimentary polarity control voltages, a phase shifter may be driven with a single polarity control voltage. The phase shifter comprises an input node in communication with both a high pass network and a low pass network which are both in communication with an output node, where the phase shifter further comprises a first single pole double throw switch and a second single pole double throw switch configured to selectively pass an rf signal from the input node to the output node by way of one of said high pass network and said low pass network.
Torsional vibration damping arrangement, in particular for the powertrain of a vehicle
A torsional vibration damping arrangement comprises an input region to be driven in rotation around an axis of rotation and an output region and a first torque transmission path and parallel thereto a second torque transmission path, both of which proceed from the input region, and a coupling arrangement for superposing the torques conducted via the torque transmission paths, which coupling arrangement communicates with the output region, a phase shifter arrangement for the first torque transmission path for generating a phase shift of rotational irregularities conducted via the first torque transmission path relative to rotational irregularities conducted via the second torque transmission path, and a pendulum mass in the phase shifter arrangement and/or in the coupling arrangement.. .
Propagation rate measurement device, propagation rate measurement program, and propagation rate measurement method
A sonic speed measurement device in which reliability is enhanced while the amount of calculation is minimized is provided. A propagation path postulation component postulates the sonic speed through bone, and calculates propagation paths up until ultrasonic waves transmitted from a wave transmitter are received by oscillators.
Furuno Electric Co., Ltd.
Polarization demultiplexing of optical signals
An example embodiment includes optical receiver that includes a polarization beam splitter (pbs), a polarization controller, and a forward error correction (fec). The pbs is configured to split a received optical signal having an unknown polarization state into two orthogonal polarizations (x′-polarization and y′-polarization).
Cartesian digital power amplifier using coordinate rotation
An apparatus includes first through fourth circuits. The first circuit determines a region of an input signal.
Marvell World Trade Ltd.
Devices and methods employing hermetic transforms for encoding and decoding digital information in spread-spectrum communication systems
In a direct sequence spread-spectrum (dsss) systems, such as cdma, information is encoded in symbols using phase shift keying or quadrature amplitude modulation. Further, a transmitter applied a selected time shifted lag to each symbol to convey additional information.
Broadband isolation low-loss ism/mb-hb tunable diplexer
Embodiments of a tunable radio frequency (rf) diplexer and methods of duplexing transmission and receive signals are disclosed. In one embodiment, the rf diplexer includes a first hybrid coupler, a second hybrid coupler, and an rf filter circuit, and a phase inversion component.
Rf Micro Devices, Inc.
Autofocus system and method
Autofocus system (af) employing, in addition to specified optical units, fringe projection and fringe detection systems (fps, fds) and specifically-configured data processing system. Afs is configured to project with fps a sinusoidal fringe pattern, formed by a pattern source, on a substrate and to image the so projected pattern from substrate onto optical detector with fds to form optical image from which topology of the substrate is defined as substrate moves relative to the projected pattern.
Phase-shifting unit module, manufacturing method therefor, phase-shifting device, and antenna
The present invention relates to a phase-shifting unit module, a manufacturing method therefor, a phase shifting device, and an antenna. The phase-shifting unit module comprises a first metal ground plate, a second metal ground plate, an insulating dielectric plate, a slide apparatus, and a fixed transmission line.
Guangdong Broadradio Communication Technology Co., Ltd.
Adaptive adjustment of power splitter
A device includes a power splitter configured to couple to an amplifier having a first path and a second path. The device includes a controller coupled to first and second variable attenuators and first and second adjustable phase shifters.
Freescale Semiconductor, Inc.
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.
Surrogate phantom for differential phase contrast imaging
A phantom material may be irradiated with varying energy x-rays to determine its phase shift properties. A determination of the difference between those phase shift properties and the phase shift properties of another material of interest can be represented and stored in terms of a polynomial function.
Carestream Health, Inc.
Multiple phase-shift photomask and semiconductor manufacturing method
Manufacturing of semiconductor devices often involves performed photolithography to pattern and etch the various features of those devices. Such photolithography involves masking and focusing light onto a surface of the semiconductor device for exposing and etching the features of the semiconductor devices.
Low latency and low complexity phase shift network
A high performance, low complexity phase shift network may be created with one or more non-first-order all-pass recursive filters that are built on top of a plurality of first-order and/or second-order all-pass recursive filters and/or delay lines. A target time delay, whether large or small, may be specified as a constraint for a non-first-order all-pass recursive filter.
Dolby Laboratories Licensing Corporation
Target detection system and method
Some embodiments are directed to methods of detecting a target that include: receiving signals reflected from a target of interest, the signals having a bandwidth large enough to provide a plurality of range cells along an expected target, and processing the received signal(s) by (i) determining the phases of contiguous groups of range cells, the group size selected to approximate to sizes of targets of interest, (ii) phase-shifting the returns within a group to increase constructive interference and thereby signal power; and (iii) combining the phase shifted returns to produce phase-adjusted combined returns, and performing a detection on those combined returns. Some embodiments may provide enhanced target detection capabilities.
On die jitter tolerance test
A system and method are disclosed for performing on die jitter tolerance testing. A set of clocks are generated based on an input signal.
Parade Technologies, Inc.
Hardware-only contactless position sensor system
A hardware-only contactless position sensor system is provided that includes a contactless position sensor and hardware-only sensor system electronics. The sensor includes excitation, sine, and cosine coils.
Rosemount Aerospace, Inc.
Phase shift keying optical modulation apparatus and encoding a symbol onto an optical carrier signal
phase shift keying optical modulation apparatus comprising optical phase shifting apparatus and an optical modulator. The optical phase shifting apparatus is arranged to receive an optical carrier signal and is arranged to selectively apply a preselected optical phase shift to the optical carrier signal in dependence on a symbol of a 2n-level phase shift keying modulation format to be encoded onto the optical signal.
Telefonaktiebolaget L M Ericsson (publ)
Time of flight camera system
A light transit time camera system and method for operating such a system which can be operated with at least three modulation frequencies, having the steps a) determining a phase shift (φi) of an emitted signal (sp1) and a received signal (sp2) for a modulation frequency (f1, f2, f3) in a phase-measuring cycle (pm1, pm2, . .
Ifm Electronic Gmbh
Method and high-performance compact volumetric antenna with pattern control
A wide-bandwidth antenna with antenna pattern control includes a radiator and a feed. The radiator includes two or more volumetric radiating elements.
Electronic device with antennas isolated using phase shifter
An electronic device may be provided with a primary antenna that is used for transmitting and receiving signals and a secondary antenna that is used for receiving signals. The primary and secondary antennas may be used together in a diversity arrangement when receiving signals.
Base station antenna and base station antenna feed network
Embodiments of the present invention relate to the field of communications technologies, and provide a base station antenna and a base station antenna feed network. The base station antenna includes a transceiver array, a first-level vector synthesis network, a second-level phase shifter array, a second-level vector synthesis network, and an antenna unit array.
Huawei Technologies Co., Ltd.
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.. .
The Regents Of The University Of California
Optical semiconductor device, optical semiconductor device array, and optical transmitter module
An optical semiconductor device includes: an active region which includes an active layer which produces light when current is injected therein, a first diffraction grating layer having a first diffraction grating with a prescribed grating period, and a phase shift portion formed within the first diffraction grating layer, wherein the phase shift portion provides a phase shift not smaller than 1.5π but not larger than 1.83π; and a distributed reflection mirror region which is optically coupled to a first end of the active region as viewed along a direction of an optical axis, and which includes a second diffraction grating which reflects the light produced by the active region back into the active region.. .
Oxide capacitor elecro-optical phase shifter
An electro-optical phase shifter to be located in an optical waveguide may include a rib of a semiconductor material extending along a length of the optical waveguide and a control structure configured to modify a concentration of carriers in the rib according to a control voltage present between first and second control terminals of the phase shifter. The control structure may include a conductive layer covering a portion of the rib and electrically connected to a first of the control terminals.
Material differentiation with phase contrast imaging
A method and system to determine material composition of an object comprises capturing a series of digital radiographic images of the object using a single exposure energy level. An intensity of the captured images is determined as well as phase shift differences.
Carestream Health, Inc.
Gyroscopes based on nitrogen-vacancy centers in diamond
A solid-state gyroscope apparatus based on ensembles of negatively charged nitrogen-vacancy (nv−) centers in diamond and methods of detection are provided. In one method, rotation of the nv− symmetry axis will induce berry phase shifts in the nv− electronic ground-state coherences proportional to the solid angle subtended by the symmetry axis.
The Regents Of The University Of California
Digital video broadcast receiver
A digital video broadcast receiver including a frequency synthesizer, a plurality of frequency dividing-phase shifting circuits, an antenna and a plurality of signal processing modules is provided. The frequency synthesizer synthesizes a first frequency signal.
Memory controller with flexible data alignment to clock
A system includes a memory controller and a plurality of memory devices that are connected in-series to the memory controller. The system operation is synchronous with clock that is provided in a fashion of source synchronous clock structure.
Conversant Intellectual Property Management Inc.
Millimeter band transmitting/receiving system
In the field of millimeter band transmitting/receiving systems for a high-speed contactless transmission, an architecture is provided with a common processing circuit supplying modulation signals and a plurality of transmitting/receiving integrated circuits, all identical to one another, receiving these signals, and also a common clock. The transmitting/receiving integrated circuits each comprise: an oscillator locked with the clock signal to produce a carrier frequency, a transmit channel comprising a first controllable phase shift circuit, a frequency transposition to the carrier frequency, and a power amplifier, a receive channel comprising a low noise amplifier, a frequency transposition from the carrier frequency, and a second controllable phase shift circuit.
Commissariat A L'energie Atomique Et Aux Energies Alternatives