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 Tunable laser including parallel lasing cavities with a common output patent thumbnailTunable laser including parallel lasing cavities with a common output
A parallel cavity tunable laser generally includes a semiconductor laser body defining a plurality of parallel laser cavities with a common output. Each of the parallel laser cavities is configured to be driven independently to generate laser light at a wavelength within a different respective wavelength range.
Applied Optoelectronics, Inc.


 Tunable resonant inductive coil systems for wireless power transfer and near field communications patent thumbnailTunable resonant inductive coil systems for wireless power transfer and near field communications
A tunable resonant inductive coil system includes an electrical circuit having an alternating current (ac) voltage source, a barium strontium titanate (bst) variable capacitor coupled in series with a first terminal of the ac voltage source, a coil coupled in series with the bst variable capacitor, and a return line coupling the coil with a second terminal of the ac voltage source and/or a ground. The electrical circuit forms an lc circuit (resonant circuit).
Semiconductor Components Industries, Llc


 Optical transmitter emitting light with narrowed linewidth patent thumbnailOptical transmitter emitting light with narrowed linewidth
An optical transmitter that narrows the linewidth of the output light is disclosed. The optical transmitter includes a wavelength tunable laser diode (ld) type of the csg-dr ld integrated with a semiconductor optical amplifier (soa) driven by the constant magnitude mode.
Sumitomo Electric Industries, Ltd.


 Packaging structure and  packaging tunable laser device, and tunable laser device patent thumbnailPackaging structure and packaging tunable laser device, and tunable laser device
The present disclosure provides a packaging structure and a method of packaging an tunable laser device, and an tunable laser device. The packaging structure of the tunable laser device may include a to tube base and a to tube cap, wherein a first thermal sink is disposed on the to tube base, a semiconductor laser chip is disposed on a vertical side of the first thermal sink, an aspheric lens is disposed on the to tube cap, and the semiconductor laser chip is disposed on a central axis of the aspheric lens; and wherein the vertical side of the first thermal sink is a side of the first thermal sink perpendicular to the to tube base.
Hisense International Co., Ltd.


 Finfet including tunable fin height and tunable fin width ratio patent thumbnailFinfet including tunable fin height and tunable fin width ratio
A semiconductor substrate includes a bulk substrate layer that extends along a first axis to define a width and a second axis perpendicular to the first axis to define a height. A plurality of hetero semiconductor fins includes an epitaxial material formed on a first region of the bulk substrate layer.
Stmicroelectronics, Inc.


 Tunable composite interposer patent thumbnailTunable composite interposer
A composite interposer can include a substrate element and a support element. The substrate element can have first and second opposite surfaces defining a thickness of 200 microns or less, and can have a plurality of contacts exposed at the first surface and electrically conductive structure extending through the thickness.
Invensas Corporation


 Spin-on layer for directed self assembly with tunable neutrality patent thumbnailSpin-on layer for directed self assembly with tunable neutrality
Techniques disclosed herein include methods for creating a directed self-assembly tunable neutral layer that works with multiple different block copolymer materials. Techniques herein can include depositing a neutral layer and then post-processing this neutral layer to tune its characteristics so that the neutral layer is compatible with a particular block copolymer scheme or schemes.
Tokyo Electron Limited


 Index traversals utilizing alternate in-memory search structure and system memory costing patent thumbnailIndex traversals utilizing alternate in-memory search structure and system memory costing
In searching an index in an original search structure for a database, portion(s) of the index are determined to be stored in a memory in an alternate search structure. The alternate search structure with the portion(s) is created and stored in the memory.
International Business Machines Corporation


 Index traversals utilizing alternate in-memory search structure and system memory costing patent thumbnailIndex traversals utilizing alternate in-memory search structure and system memory costing
In searching an index in an original search structure for a database, portion(s) of the index are determined to be stored in a memory in an alternate search structure. The alternate search structure with the portion(s) is created and stored in the memory.
International Business Machines Corporation


 Compact optics with reduced chromatic aberrations patent thumbnailCompact optics with reduced chromatic aberrations
Disclosed here in is a method of adjusting a tunable illuminating light source with a reflective display for a head mounted display to reduce chromatic artifacts in an image provided to a user's eye. The method includes identifying a color associated with a chromatic-related artifact in a displayed image and adjusting the tunable illuminating light source to reduce the brightness of the color associated with the chromatic-related artifact..
Osterhout Group, Inc.


Tunable mpo connector


An mpo connector includes a pin configuration with an elongated shaft extending along an axis a. A first portion proximate a first end of the shaft includes a tool surface feature for engagement by a tool to impart a rotation to the shaft.
Commscope, Inc. Of North Carolina


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.

Voltage-tunable magnetic devices for communication applications


Magnetic devices and methods for forming a magnetic device are disclosed. The magnetic device includes a mtj element.
Globalfoundries Singapore Pte. Ltd.


Quantum cascading laser system for analyzing pathogenic microorganisms


A quantum cascading laser system for analyzing pathogenic microorganisms, where the quantum cascading laser system comprises a tunable laser unit, a beam splitter, lens, sample chamber, optical detector, data acquisition system, reference detector, and lock-in amplifier, where a computer controls the system and conducts the data analysis from the data produced from the quantum cascading laser system against a set of data derived from known pathogenic mircoorganisms to identify the pathogenic organisms in the original sample.. .

Tunable multi-band spectro-polarimeter


Methods and apparatus for remote, passive detection of underwater objects using combined spectral and polarimetric imaging. In one example, a tunable multi-band spectro-polarimeter includes an imaging detector array that receives electromagnetic radiation from a viewed scene, a plurality of tunable spectral filters configured to filter the electromagnetic radiation into at least first and second spectral bands, and a plurality of polarization filters configured to filter each of the first and second spectral bands into at least two different polarization states, a first region of the detector array receiving the first spectral band and producing first polarimetric image data, and a second region of the detector array simultaneously receiving the second spectral band and producing second polarimetric image data, and a controller that receives and processes the first and second polarimetric image data to detect a target object in the viewed scene..
Raytheon Company


Multimode color tunable light source and daylighting system


Described herein are day lighting systems that utilize a combination of at least one natural light source with at least one multimode artificial light source. Also disclosed are methods for designing and operating such systems..
Osram Sylvania Inc.


Supporting multiple frequency bands


A channel sharing method includes receiving a signal in a frequency band. The frequencies in the signal above a cutoff frequency are filtered to generate a filtered signal.
Blackberry Limited


Tunable q resonator


A tunable q resonator using a capacitive-piezoelectric transducer provides a flexible top electrode above an aln resonator. The top electrode can be pulled electrostatically towards the resonator and substrate, forming a frictional contact with either the resonator or the combined resonator-electrode structure to the substrate, allowing for electrical tuning the q of the resonator.
The Regents Of The University Of California


Impedance tuning circuit


A circuit for tuning an impedance matching network is disclosed. The circuit includes a current sensor, a control circuit coupled to the current sensor and a reference current source and a tunable capacitor coupled to the control circuit.
Nxp B.v.


Motor driving device with rotation and stop setting mode and the driving method thereof


A motor driving device with stop mode setting and driving method thereof comprises a pwm converting circuit, an oscillator circuit, a first comparator, a second comparator, and a control unit. The second comparator compares a tunable stop setting signal with an analog signal to output a stop setting signal to the control unit.
Amteck Semiconductor Co., Ltd.


Monolithic wide wavelength tunable mid-ir laser sources


A method of characterizing a monolithic tunable mid-infrared laser including a heterogeneous quantum cascade active region together with a least first and a second tunable integrated distributed feedback gratings, the method including operating the laser while tuning the first grating through its full tuning range, while holding the reflectivity function of the second grating constant, then operating the laser while tuning the second grating through its full tuning range, while holding the reflectivity function of the first grating constant.. .
Thorlabs Quantum Electronics, Inc.


Synchronized tunable mode-locked lasers


A synchronized laser system for illuminating a sample with first and second laser light pulses, said system comprising: a trigger, said trigger being operative to issue first and second trigger signals, said first and second trigger signals being emitted at an adjustable frequency with a predetermined delay therebetween; a first tunable mode-locked laser operative for emitting said first laser light pulses in response to receiving a train of said first trigger signals, a first wavelength of said first laser light pulses being dependent on said adjustable frequency in accordance with a first wavelength-frequency relationship; a second tunable mode-locked laser operative for emitting said second laser light pulses in response to receiving a train of said second trigger signals, a second wavelength of said second laser light pulses being dependent on said adjustable frequency in accordance with a second wavelength-frequency relationship; wherein said predetermined delay is such that said first and second laser light pulses are emitted so as to arrive substantially simultaneously in said sample; and said first and second wavelength-frequency relationships are selected to result in a predetermined relationship between said first and second wavelengths at each frequency.. .
Genia Photonics Inc.


Filter characteristic tuning apparatus, tunable filter apparatus and control tunable filter apparatus


According to an embodiment, a filter characteristic tuning apparatus includes a characteristic tuning member, an elastic member, a first movable member, a second movable member, and a driving mechanism. The elastic member comes in contact with a characteristic tuning member by deformation, and separates from the characteristic tuning member by a restoring force.
Kabushiki Kaisha Toshiba


Magneto-dielectric polymer nanocomposites


In accordance with the present invention, novel superparamagnetic magneto-dielectric polymer nanocomposites are synthesized using a novel process. The tunability of the dielectric/magnetic properties demonstrated by this novel highly-viscous solvent-free polymer nanocomposite that is amenable to building 3d electromagnetic structures/devices by using processes such as 3d printing, compression molding or injection molding, when an external dc magnetic field is applied, exceeds what has been previously reported for magneto-dielectric polymer nanocomposite materials..
University Of South Florida


Methods and augmented bus numbering


Methods and apparatus for augmenting routing resources. In one exemplary embodiment, a thunderbolt™ transceiver incorporates a peripheral component interconnect express (pcie) bus that supports hot-plugging and hot-unplugging of peripheral devices.
Apple Inc.


Microscope with tunable acoustic gradient index of refraction lens enabling multiple focal plan imaging


An apparatus, system and method for microscopy. The apparatus, system and method includes a stage configured to receive an item; a tunable acoustic gradient index of refraction (tag) lens having a first aspect positioned to image the received item, wherein the first aspect of the tag lens is configured to have an optical power profile in accordance with an operational frequency of the tag lens; one or more lenses configured to magnify an image of the received item at a viewing point; and at least one pulsed light source configured to illuminate the received item and to pulse at one or more points within the optical power profile of the tag lens..

Detecting system


A detecting system configured for detecting flaws on an object to be detected, increasing: a display processing device; an tunable light source; at least one light transmitter, wherein the tunable light source is connected with the at least one light transmitter; at least one light receiver configured for cooperating with the at least one light transmitter, wherein the at least one light receiver is connected with the display processing device; wherein the display processing device is connected to the tunable light source, receives and processes information provided by the light receiver to form detection images, and is operable to adjust the tunable light source.. .
Beijing Boe Display Technology Co., Ltd.


In-band optical signal-to-noise ratio monitor


Methods and systems for in-band osnr monitoring include a tunable optical filter to scan a passband of a desired optical channel. The optical power over the passband is measured and digitized to power waveform data.
Fujitsu Limited


Tunable light modulation using graphene


Described herein are optical devices based on two-dimensional materials and methods for making such devices. In particular, the articles described herein are useful in the control and modulation of light via graphene mono- or multilayers.
Corning Incorporated


Tunable narrow-linewidth single-frequency linear-polarization laser device


A tunable narrow-linewidth single-frequency linear-polarization laser device comprising a heat sink, a pumping source packaged on the heat sink, a first and second collimating lenses, a laser back cavity mirror, a thermal optical tunable filter, a rare-earth-ion heavily-doped multicomponent glass optical fiber, a super-structure polarization-maintaining fiber grating, a polarization-maintaining optical isolator, a polarization-maintaining optical fiber, and a thermoelectric refrigerating machine. The laser device uses a short and straight single-frequency resonant cavity structure, the heavily-doped and high-gain characteristics of the multicomponent glass optical fiber, a frequency selection role and wavelength tuning function of the thermal optical tunable filter and the superstructure polarization-maintaining fiber grating, and combines a precision temperature adjustment technology, and by means of real-time adjustment of distribution of reflection wavelengths and transmission wavelengths, the laser device changes spectrum peak overlapping positions, so as to implement stable output of wide-tuning-range, extra-narrow-linewidth, high-extinction-ratio and high-output-power continuously tunable single-frequency linear-polarization laser..
South China University Of Technology


Silicon etch process with tunable selectivity to sio2 and other materials


A tunable plasma etch process includes generating a plasma in a controlled flow of a source gas including nh3 and nf3 to form a stream of plasma products, controlling a flow of un-activated nh3 that is added to the stream of plasma products to form an etch gas stream; and controlling pressure of the etch gas stream by adjusting at least one of the controlled flow of the source gas and the flow of un-activated nh3 until the pressure is within a tolerance of a desired pressure. An etch rate of at least one of polysilicon and silicon dioxide by the etch gas stream is adjustable by varying a ratio of the controlled flow of the source gas to the flow of un-activated nh3..
Applied Materials, Inc.


Tunable lens device


The present invention relates to a lens device (1), comprising: a transparent and elastically expandable membrane (10), an optical element (20) opposing the membrane (10), a wall member (300), wherein the optical element (10) and the membrane (10) are connected to the wall member (300) such that a volume (v) is formed, a fluid (f) residing in said volume (v), and a lens shaping member (11) attached to the membrane (10). According to the invention the lens device (1) comprises an actuator means (40) that is designed to move the optical element (20) in an axial direction (a) with respect to the lens shaping member (11) so as to adjust the pressure of the fluid (f) residing inside the volume (v) and therewith a curvature of said membrane (10), wherein said axial direction (a) is oriented perpendicular to a plane spanned by the lens shaping member (11), and wherein said actuator means (40) is designed to tilt the optical element (20) with respect to said plane, particularly so as to form the volume into a prism for deflecting light passing the volume.
Optotune Ag


Hydrogel particles with tunable optical properties and methods for using the same


Hydrogel particles and their use in cytometic applications are described. The hydrogel particles described herein are selectively tunable to have at least one optical property substantially similar to the at least one optical property of a target cell.
Slingshot Biosciences


Using tunable lasers in the design, manufacture, and implementation of integrated optical elements


Disclosed are systems and methods that use a tunable laser during optical thin-film fabrication. One disclosed system includes a tunable laser capable of generating electromagnetic radiation, one or more thin-film devices arranged to receive the electromagnetic radiation, each thin-film device including one or more optical layers deposited on a corresponding substrate and configured to generate optically interacted radiation upon receiving the electromagnetic radiation, and an optical transducer arranged to receive the optically interacted radiation from each of the one or more thin-film devices and configured to generate output signals corresponding to the optically interacted radiation received from each of the one or more thin-film devices..
Halliburton Energy Services, Inc.


Tunable covalently crosslinked hydrogels and methods of making the same


The present invention provides, among other things, a elastomeric biomaterial having enzymatically cross-linked amino acid phenolic side chains to generate highly elastic hydrogels. Materials are characterized by tunable mechanical properties, gelation kinetics and swelling properties of these new protein polymers.
Trustees Of Tufts College


Curling hammer and operating principle thereof


The present invention discloses a curling hammer and an operation principle thereof. The curling hammer is made up of a handle shell component, a control member, a heating member, a power member, a curling member and a hair care member.
Zhejiang Yueli Electrical Co., Ltd.


Tunable ribbon microphone


A tunable ribbon microphone having magnets positioned within a small gap in between pieces of opposite poles. A conductive ribbon placed in an air gap between the magnets by an adjustable ribbon holder structure.

Method and controlling, monitoring, and communicating with tunable optical devices and subassemblies


An apparatus for controlling, monitoring, and communicating with an optical device, photonic integrated circuit or subassembly is provided. The apparatus includes an optical device or subassembly; and afield programmable device including programmable hardware gates coupled to the optical device or subassembly.
Oe Solutions America, Inc.


Tunable laser with directional coupler


A tunable laser has a first mirror, a second mirror, a gain medium, and a directional coupler. The first mirror and the second mirror form an optical resonator.
Skorpios Technologies, Inc.


Fast calibration and programming optical components


A method and apparatus for calibrating and controlling tunable lasers are disclosed. Multiple methodologies disclosed herein may be used, alone or in combination, which significantly speed up a calibration time and thus provide a significant advantage over existing technology in calibrating the tunable lasers.
Oe Solutions America, Inc.


Led emitter packages with high cri


A color-tunable led emitter with high cri can be made by mounting multiple led chips onto a ceramic substrate that has been patterned with metal contacts and paths so as to connect the led chips into multiple independently addressable led groups. Each led group can produce light of a different color, allowing the color of the emitter to be tuned by adjusting the relative amount of operating current supplied to each led group.
Ledengin, Inc.


Decorative dual-function photovoltaic devices generating angle insensitive transmissive or reflective colors


The present disclosure provides dual-function photovoltaic (pv) devices that generate electric current and have a colored surface or colored appearance. The pv devices may be angle insensitive and polarization independent.
The Regents Of The University Of Michigan


Tunable inductor arrangement, transceiver, method and computer program


A tunable inductor arrangement arrangable on a chip or substrate is disclosed. The tunable inductor comprises a first winding part connected at one end to a first input of the tunable inductor arrangement, a second winding part connected at one end to the other end of the first winding part, a third winding part connected at one end to a second input of the tunable inductor arrangement, a fourth winding part connected at one end to the other end of the third winding part, and a switch arrangement arranged to tune the tunable inductor arrangement by selectively provide a circuit either comprising the first and fourth winding parts in parallel and the second and third winding parts in parallel, with the parallel couplings in series between the first and second inputs, or a circuit comprising the first, second, fourth and third winding parts in series between the first and second inputs.
Telefonaktiebolaget Lm Ericsson (publ)


Social applications for augmented reality technologies


Augmented and virtual reality systems are becoming increasingly popular. Unfortunately, their potential for social interaction is difficult to realize with existing techniques.
Eonite Perception Inc


Terahertz spectroscopy system and method


A terahertz spectrometer includes: a terahertz-wave emitter and a terahertz receiver elements. The terahertz wave generated by means of generating beat frequency corresponding to the difference between two rapidly tunable continuous wave lasers.
Novatrans Group Sa


Self referenced intensity-based polymer optical fibre displacement sensor


The present invention provides a self-reference and tunable optical displacement transducer comprising an optical splitter, at least one transducing element and a self-reference element, where each of said transducing element and said self-reference element comprises a pair of optical fibers and a reception assembly between each pair of the optical fibers. One of the reception assembly and the second optical fiber of the transducing element are displaceable along the same axis and relatively with respect to each other while another reception assembly and the second optical fiber of the self-reference element are non-displaceable.
Nano And Advanced Materials Institute Limited


Tunable multi-led emitter module


A method for making a light-emitting diode (led) emitter module includes providing a substrate and providing two or more groups of led dies disposed on the substrate. Each group has one or more led dies, and each of the led dies is coupled to an electrical contact and electrical paths are configured for feeding separate electrical currents to the groups of led dies.
Ledengin, Inc.


Variable power splitter for equalizing output power


A variable power splitter apparatus and methods of using the same. In some cases, polarization dependent losses in a polarization-multiplexed system are minimized.
Coriant Advanced Technology, Llc


Method for frequency tuning narrowband lnas


A radio frequency (rf) receiver that includes a low noise amplifier (lna), a tunable resonant circuit, and a processor for performing calibration of the rf receiver. The processor is configured to sweep the tunable resonant circuit through a dynamic range of resonant frequency settings while estimating noise signal output power at the lna at each setting.
Qualcomm Technologies International, Ltd.


Resonance detection and filtering circuitry


A circuit and method to filter a signal is provided. The circuit includes a notch filter circuit to receive an input signal and first and second tuning signals and to provide an output signal.
Analog Devices Global


Gate-tunable atomically-thin memristors and methods for preparing same and applications of same


In one aspect of the invention, the memristor includes a monolayer film formed of an atomically thin material, where the monolayer film has at least one grain boundary (gb), a first electrode and a second electrode electrically coupled with the monolayer film to define a memristor channel therebetween, such that the at least one gb is located in the memristor channel, and a gate electrode capacitively coupled with the memristor channel.. .
Northwestern University


Transistor barrier-controlled internal photoemission detector


A three-terminal transistor-based radiation detector is presented which uses internal photoemission over a bias-controlled potential barrier which may be of a bipolar or field-effect transistor nature. The proposed invention allows bias-tunable control of the radiation wavelength under detection while enabling integration with conventional silicon or other semiconductor fabrication processes.

Phase segregated block copolymers with tunable properties


The phase segregated block copolymer has a weight average molecular weight of from 40 000 to 120 000.. .

Method and predictive vehicle preconditioning


A system includes a processor configured to access a schedule of vehicle start times. The processor is also configured to select a scheduled key-on time, when a current time is within a tunable proximity to the scheduled key-on time.
Ford Global Technologies, Llc


Down-conversion circuit


A down-conversion circuit for a receiver circuit is disclosed, the down-conversion circuit comprises a first passive switching mixer arranged to down-convert a received radio frequency, rf, signal with a first local oscillator, lo, signal (lo1) having a first duty cycle for generating a first down-converted signal at an output port of the first passive switching mixer. The down-conversion circuit further comprises a second passive switching mixer arranged to down-convert the received rf signal with a second lo signal (lo2) having the same lo frequency as the first lo signal (lo1) and a second duty cycle, different from the first duty cycle, for generating a second down-converted signal at an output port of the second passive switching mixer.
Telefonaktiebolaget Lm Ericsson (publ)


Amplifier with common-mode filter


A differential amplifier having a tunable filter is disclosed. The tunable filter may attenuate some common-mode signals while not affecting amplification of differential signals.
Qualcomm Incorporated


Generating two synchronized trains of laser pulses


A method and system generates two synchronized trains of laser pulses at different wavelengths, wherein the two pulse trains are temporally synchronized and have a stable phase relation, and wherein the wavelength of one of the pulse trains is de-tunable. The method includes the steps of: generating a train of ultra-short seed laser pulses; splitting the train of seed laser pulses into a first pulse train and a second pulse train; and frequency-shifting the first pulse train by soliton self-frequency shift in an optically pumped waveguide having anomalous dispersion, wherein the spectrum of the frequency-shifted first pulse train is de-tunable by varying the pump power..
Toptica Photonics Ag


Tunable acoustic transmitter for downhole use


The resonant frequency of an example transducer can be adjusted by changing the effective mass of a backing mass using a tuning module. The tuning module includes a electrical source, a switch, and an electromagnetic coil connected in series as an electrical circuit.
Halliburton Energy Services, Inc.


Wave shaping device, an electronic device, and a system


A wave shaping device which comprises a tunable impedance surface and a controller connected to the surface in order to control its impedance. The shaping device further comprises a transmission module for receiving a pilot signal used to control the impedance of the surface..
Universite Paris Diderot - Paris 7


Tunable radio frequency low noise amplifier


An apparatus comprising an amplifier comprising an input, a capacitor having a capacitor first side and a capacitor second side, wherein the capacitor first side is coupled to the input, a switch having a switch first side and a switch second side, wherein the switch first side is coupled to the capacitor second side, and a transistor having a transistor gate, and a transistor source, wherein the transistor gate is coupled to the input and the capacitor first side, wherein the transistor source is coupled to the switch second side and wherein the switch is positioned directly between the capacitor second side and the transistor source.. .
Futurewei Technologies, Inc.


Inductively coupled transformer with tunable impedance match network


A packaged rf power transistor includes an rf input lead, a dc gate bias lead, an rf power transistor comprising gate, source and drain terminals, and an input match network. The input match network includes a primary inductor electrically connected to the rf input lead, a secondary inductor electrically connected to the gate terminal and to the dc gate bias lead, and a tuning capacitor electrically connected to the rf input lead and physically disconnected from the gate terminal.
Infineon Technologies Ag


Tunable wireless energy transfer systems


Described herein are improved configurations for a wireless power transfer. A power source for driving a resonator includes a switching amplifier.
Witricity Corporation


Laser assembly


A tunable laser configured in a small package subassembly including a gain chip positioned in the interior space between first and second tunable filter subassemblies. The tunable laser is packaged in either a rectangular or cylindrical housing, with an electrical input interface positioned at one end of the housing..
Neophotonics Corporation


Wavelength tunable laser device and optical coherence tomography apparatus


A wavelength tunable laser device, including: a first reflector; a second reflector; an active layer formed between the first reflector and the second reflector; a quantum well structure layer that exhibits a quantum confined stark effect; and an electrode configured to apply a reverse bias voltage to the quantum well structure layer, wherein the active layer and the second reflector have a gap formed therebetween, the gap having a length to be changed to thereby sweep a resonance wavelength, and wherein the electrode is further configured to change application of the reverse bias voltage to be applied to the quantum well structure layer depending on the length of the gap when the resonance wavelength is swept.. .
Canon Kabushiki Kaisha


Wavelength-tunable light source and wavelength-tunable light source module


A first arm portion and a second arm portion are provided so as to have a distance therebetween greater than a distance between input ends of two output waveguides and greater than a distance between an output end of a first output portion and an output end of a second output portion, the first arm portion forming a traveling path of light from one of the two output waveguides to the first output portion through a first optical amplifier, the second arm portion forming a traveling path of light from another one of the two output waveguides to the second output portion through a second optical amplifier. The first optical amplifier and the second optical amplifier have curved portions in which the first output portion and the second output portion are curved in a direction toward each other, and the first optical amplifier and the second optical amplifier respectively output light from the output end of the first output portion and the output end of the second output portion..
Mitsubishi Electric Corporation


Tunable negative bitline write assist and boost attenuation circuit


An apparatus and method are provided for implementing write assist with boost attenuation for static random access memory (sram) arrays. The apparatus includes a memory array comprising a plurality of sram cells.
International Business Machines Corporation


Color display calibration system


A display calibration system may be used to calibrate a display. The display calibration system may have an image sensor that captures images of the display.
Apple Inc.


Quantum cascade laser (qcl) based gas sensing system and method


A system and method are disclosed for gas sensing over a wide tunable wavelength range provided by one or more quantum cascade lasers. A laser beam is generated within the wide tunable wavelength range, which is given by the sum of the wavelength ranges from the individual lasers.
Block Engineering, Llc


Method and system for gas concentration measurement of gas dissolved in liquids


The present invention concerns a method and system for gas concentration measurement of gas or gas mixtures dissolved in liquids. A gas or gas mixture dissolved in a liquid sample is extracted from the liquid sample using an extraction system and conducted into a measurement chamber.
Vaisala Oyj


Multiple beam pulsed laser deposition of composite films


The present disclosure generally relates to a system and method for multiple beam laser deposition of thin films wherein separate laser beams are used to ablate material from separate targets for concurrent deposition on a common substrate. The targets may include, but not limited to polymers, organics, inorganics, nanocrystals, solutions, or mixtures of materials.
Dillard University


Metal-based thiophene photodynamic compounds and their use


Compositions of the invention include tunable metal-based thiophene photodynamic compounds useful as therapeutic agents and as in vivo diagnostic agents for treating or preventing diseases that involve hyperproliferating cell etiology including cancer and diseases associated with hyperproliferating cells. The compositions are also useful for treating infectious diseases and for pathogen disinfection..

Tunable electrical conductivity in metal-organic framework thin film devices


A composition including a porous metal organic framework (mof) including an open metal site and a guest species capable of charge transfer that can coordinate with the open metal site, wherein the composition is electrically conductive. A method including infiltrating a porous metal organic framework (mof) including an open metal site with a guest species that is capable of charge transfer; and coordinating the guest species to the open metal site to form a composition including an electrical conductivity greater than an electrical conductivity of the mof..
Sandia Corporation


Controlling mitigating rogue optical network unit (onu) in hybrid passive optical network (pon) system


A controlling method for mitigating a rogue behavior of an optical network unit (onu) having a wavelength-tunable function in a hybrid passive optical network (pon) system. The controlling method includes determining whether a first wavelength for an upstream signal received from the onu strays away from an allowable range for a second wavelength assigned to the onu, and, in response to a determination that the first wavelength strays away from the allowable range for the second wavelength, transmitting an upstream wavelength adjustment request message to the onu to adjust a wavelength for the upstream signal.
Electronics And Telecommunications Research Institute


Wavelength/bandwidth tunable optical filter and driving method thereof


Provided herein is a wavelength/bandwidth tunable optical filter capable of flexibly tuning a wavelength and bandwidth, the wavelength/bandwidth tunable optical filter including an optical circulator configured to receive a wdm (wavelength-division-multiplexing) optical signal from an optical cable; and a plurality of wavelength-tunable optical filters configured to receive the wdm optical signal via the optical circulator, wherein the plurality of wavelength-tunable optical filters reflect wavelengths of different bandwidths from one another.. .
Electronics And Telecommunications Research Instit Institute


Integrated clock generator and method therefor


An integrated clock generator includes a tunable lc oscillator, a tunable frequency synthesizer, and a processor. The tunable lc oscillator has an input for receiving an oscillator control signal, and an output for providing an oscillator clock signal.
Silicon Laboratories Inc.


Tunable laser source


A tunable transmission optical filter is optically coupled between a laser section and semiconductor optical amplifier (soa) section of a tunable laser device. The optical filter may be tuned to provide a high transmission near the lasing peak while suppressing a significant portion of back-propagating amplified spontaneous emission (ase) of the soa section.
Lumentum Operations Llc


Akinetic swept laser fast sweeping of the same


The present invention discloses a method and apparatus for producing a narrow line laser emission that can be tuned at frequency rates exceeding 100 khz. The laser apparatus is capable of fast scanning speeds close to multiples of the cavity resonance frequency.
University Of Kent


On-chip vertical three dimensional microstrip line with characteristic impedance tuning technique and design structures


A vertical three dimensional (3d) microstrip line structure for improved tunable characteristic impedance, methods of manufacturing the same and design structures are provided. More specifically, a method is provided that includes forming a first microstrip line structure within a back end of the line (beol) stack.
University Of South Carolina


Semiconductor device with tunable work function


The metal-oxide semiconductor structure includes a substrate, a gate dielectric multi-layer, an etch stop layer, a work function metallic layer, a barrier layer and a silicide layer. The substrate has a trench.
Taiwan Semiconductor Manufacturing Co., Ltd.


Tunable inductive device for parametric audio systems and related methods


An apparatus and method for optimizing a parametric emitter system having a pot core inductive device coupled between an amplifier and emitter. The pot core inductive device allows for adjustments of the air gap formed between the two halves of the pot core structure to adjust its inductive value.
Turtle Beach Corporation


Tunable inductor arrangement, transceiver, method and computer program


A tunable inductor arrangement arrangable on a chip or substrate is disclosed. The tunable inductor comprises a first winding part connected at one end to a first input of the tunable inductor arrangement, a second winding part connected at one end to the other end of the first winding part, a third winding part connected at one end to a second input of the tunable inductor arrangement, a fourth winding part connected at one end to the other end of the third winding part, and a switch arrangement arranged to tune the tunable inductor arrangement.
Telefonaktiebolaget Lm Ericsson (publ)


Tunable nano-antenna and methods of manufacturing and operating the same


Provided are an optical nano-antenna including a tunable material layer and methods of manufacturing and operating the optical nano-antenna. The optical nano-antenna includes a substrate; and a plurality of material layers sequentially laminated on the substrate.
Samsung Electronics Co., Ltd.


Long-period grating device and tunable gain flattening filter having same


A tunable gain flattening filter includes a long-period grating device. The long-period grating device includes: an optical fiber that includes a core having a refractive index and a core guided mode with a first effective index, and a cladding surrounding the core and having a cladding mode with a second effective index that is less than the first effective index; a thermoelectric module, the optical fiber being mounted on the thermoelectric module; a thermoelectric cooler configured to precisely control temperature of the optical fiber; and a thermistor configured as a sensor to provide feedback for the thermoelectric module.
Nano And Advanced Materials Institute Limited


Tunable turbocharger compressor cover


A turbocharger compressor housing is configured to allow a releasable fixed adjustment of a geometry of a compressor housing to increase at least one of responsiveness, efficiency or the ultimate power obtainable by a turbocharged system. Adjustability can be provided by an air intake pipe that is threadably connected with a central portion of the compressor housing to allow an air gap between the housing and the intake pipe to be adjusted to create an effect similar to adjusting the inducer area of a compressor wheel disposed in the housing, whereby power can be exchanged for efficiency and responsiveness.
Bullseye Power, Llc


Biomimetic cell culture substrates


Embodiments of the presently disclosed subject matter provide biomimetic cell culture substrates comprising highly tunable patterned polymer nanofiber matrices capable of modulating expression of critical self-renewal factors and markers of cell-cell interaction to maintain stemness of human mesenchymal stem cells in vitro. Embodiments of the presently-disclosed subject matter also provide scalable, highly repeatable methods of making biomimetic cell culture substrates by hot pressing thermoplastic polymer films into femtosecond laser-ablated nanopore molds to form patterned polymer nanofiber matrices on flat thermoplastic substrates..
Ultra Small Fibers, Llc


Tunable nonfouling surface of oligoethylene glycol


An article having a nonfouling surface thereon is comprises: (a) a substrate having a surface portion; (b) a linking layer on the surface portion; and (c) a polymer layer formed on the linking layer, preferably by the process of surface-initiated polymerization of monomeric units thereon, with each of the monomeric units comprising a monomer core group having at least one protein-resistant head group coupled thereto, to thereby form a brush molecule on the surface portion. The brush molecule comprising a stem formed from the polymerization of the monomer core groups, and a plurality of branches formed from the hydrophilic head group projecting from the stem.
Duke University


Tunable laser and tuning a laser


The invention relates to a tunable laser, the tunable laser comprising a first waveguide, a second waveguide and a semiconductor layer being arranged to separate the first waveguide from the second waveguide. The first waveguide comprises a first coupling portion and an active portion for generating a laser signal.
Huawei Technologies Co., Ltd.


Tunable hot-carrier photodetector


Various examples are provided for hot carrier spectral photodetectors that can be tuned. In one example, among others, a hot-carrier photodetector includes a graded barrier; an absorber disposed on the graded barrier; and a second barrier disposed on the absorber.
Georgia State University Research Foundation, Inc.


Hydrogenated graphene with surface doping and bandgap tunability


A graphene compound made from the method of preparing graphene flakes or chemical vapor deposition grown graphene films on a sio2/si substrate; exposing the graphene flakes or the chemical vapor deposition grown graphene film to hydrogen plasma; performing hydrogenation of the graphene; wherein the hydrogenated graphene has a majority carrier type; creating a bandgap from the hydrogenation of the graphene; applying an electric field to the hydrogenated graphene; and tuning the bandgap.. .
The Government Of The United States Of America, As Represented By The Secretary Of The Navy


Methods and transparent display using scattering nanoparticles


Transparent displays enable many useful applications, including heads-up displays for cars and aircraft as well as displays on eyeglasses and glass windows. Unfortunately, transparent displays made of organic light-emitting diodes are typically expensive and opaque.

Downhole systems for detecting a property of a fluid


System, methods, and apparatuses for determining properties of a production fluid downhole are presented. In one instance, a system includes a sample-filled sensing device for vibrating a first suspended tube containing a sample of production fluid and producing a first response signal.
Halliburton Energy Services, Inc.


Carbon monoxide releasing molecules and associated methods


The present disclosure relates to carbon monoxide releasing molecules (“corms”), and methods of synthesizing and applying the molecules. More specifically, this disclosure relates to structurally tunable corms, compounds containing corms (and salts thereof).
Utah State University


Toolholder with tunable passive vibration absorber assembly


A toolholder includes a cutting tool mounted to a head attached to a collar at a first end of the toolholder. A shank is located at a second, opposite end of the toolholder.
Kennametal Inc.


High frequency power amplifier, high frequency front-end circuit, and radio communication device


A high frequency power amplifier includes a first high frequency amplifier, a final high frequency amplifier, and a tunable filter. The tunable filter is connected between the first high frequency amplifier and the final high frequency amplifier.
Murata Manufacturing Co., Ltd.


Tunable delay circuit and operating method thereof


A tunable delay circuit includes a first multiplexer, a delay chain, and a second multiplexer. The first multiplexer selects an input signal or a feedback signal as a first output signal according to an enable signal.
Mediatek Singapore Pte. Ltd.


Broadly tunable optical paramteric oscillator


A novel broadly tunable optical parametric oscillator is described for use in numerous applications including multi-photon microscopy. The optical parametric oscillator includes at least one sub-picosecond laser pump source configured to output a pump signal having a wavelength of about 650 nm or less and at least one type ii optical parametric oscillator in optical communication with the pump source and configured to generate a single widely tunable pulsed optical signal.
Newport Corporation


Tunable antenna with slot-based parasitic element


Electronic devices may be provided that contain wireless communications circuitry. The wireless communications circuitry may include radio-frequency transceiver circuitry and antenna structures.
Apple Inc.


Tunable muzzle compensator for a firearm


A tunable muzzle compensator for a firearm that includes a tube that extends the barrel of the weapon by fitting over the muzzle. This center tube includes one or more holes along its length.



Tuna topics:
  • Dielectric Constant
  • Magnetic Field
  • Transistors
  • State Machine
  • Finite State Machine
  • Tunable Capacitor
  • Frequency Band


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