|| List of recent Tuna-related patents
|Measuring signal to noise ratio of a wdm optical signal|
A wdm optical signal is transmitted through a tunable optical filter and is polarization-nulled to find optical signal to noise ratio of individual wdm channels. The polarization nulling can be performed using a heuristic multipoint extrema search method, such as nelder-mead method.
|Simple method to denoise ratio images in magnetic resonance imaging|
A simple method to denoise ratio images in magnetic resonance imaging, includes generating a mri sequence provided for acquiring data from an object to be imaged, wherein the mri sequence is configured for generating at least two different standard images, respectively a first standard image and a second standard image, acquiring the two different standard images, and combining the two different standard images in a ratio image. The ratio image is obtained by calculating a ratio of the first standard image and the second standard image that is tunable by a parameter γ wherein the parameter γ is automatically chosen for maximizing the negentropy of the ratio image..
|Actively tunable polar-dielectric optical devices|
Optical devices that include one or more structures fabricated from polar-dielectric materials that exhibit surface phonon polaritons (sphps), where the sphps alter the optical properties of the structure. The optical properties lent to these structures by the sphps are altered by introducing charge carriers directly into the structures.
|Tunable sector buffer for wide bandwidth resonant global clock distribution|
A wide bandwidth resonant clock distribution comprises a clock grid configured to distribute a clock signal to a plurality of components of an integrated circuit and a tunable sector buffer configured to receive the clock signal and provide an output to the clock grid. The tunable sector buffer is configured to set latency and slew rate of the clock signal based on an identified resonant or non-resonant mode..
|Excess air control for cracker furnace burners|
A method for control of the air/fuel ratio of the burner(s) (excess air) of a thermal cracker includes three steps. The thermal cracker has three consecutive zones or portions through which combustion gases pass, a firebox portion, a bridge wall portion and a convection portion the first step is to direct a wavelength modulated beam of near infrared light from two different tunable diode lasers located in the bridge wall portion through combustion gas from the burner to a pair of near infrared light detectors, each positioned to receive the wavelength modulated beam of near infrared light from a different one of the two tunable diode lasers to generate a detector signal.
|Wideband transmitter front-end|
One embodiment of the present invention provides a transmitter for wireless communication. The transmitter includes a wideband tunable modulator, a number of power amplifiers with a particular power amplifier associated with a particular frequency range, and a wideband power amplifier (pa) driver.
|Modular polymer hydrogel nanoparticles and methods of their manufacture|
In certain embodiments, a nano-sized vehicle (e.g., a nanogel comprising nanoparticles) is provided herein for drug delivery with tunable biodistribution, low toxicity, and degradability, and with demonstrated targeting to bone. The composition is useful, for example, in the treatment of bone disease, particularly bone metastases from cancers such as breast, prostate, or lung cancer..
|Flexible 3-d photonic device|
Three-dimensional flexible photonic integrated circuits on silicon are fabricated in semiconductor wafer form and then transferred to silicon-on-polymer (sop) substrates. Sop provides flexibility for conformal mounting with devices capable of maintaining performance when dynamically deformed to allow routing of light in x, y and z directions.
|Broadband solar control film|
Traditional solar control applications rely on thin metal films to reflect em radiation with wavelengths longer than that of the visible spectrum. Unfortunately such films also block radiation in cellular, gps, and radio frequency bands.
|Acousto-optical tunable filter element|
An acousto-optical filter element (114) is provided which has an acousto-optical crystal (118) having an acoustic signal transmitter (120) for generating acoustic signals in the acousto-optical crystal (118). The acousto-optical crystal (118) is designed to selectively spatially deflect light of a target wavelength from an input light beam (116) entering into the acousto-optical crystal (118), as a function of a high frequency applied to the acoustic signal transmitter (120), and to thereby produce a target light beam (126) having the target wavelength.
|Wavelength tunable light source|
Provided is a wavelength tunable light source including a super luminescent diode (sld) generating lights in a predetermined wavelength band, a voltage generating unit generating first and second voltages, a first filter receiving the first voltage from the voltage generating unit, receiving the lights from the sld, and transmitting, as second lights, lights corresponding to wavelengths separated by a free spectral range (fsr) from each other among the received lights, a second filter receiving the second voltage from the voltage generating unit, receiving the second lights from the first filter, and transmitting, as a third light, a light corresponding to one wavelength among the separated wavelengths among the received second light, and a reflective mirror disposed at an output end of the second filter and reflects the third light transmitted from the second filter.. .
|Wavelength scanning interferometer and method for aspheric surface measurement|
The present invention discloses a wavelength scanning interferometer and a method for an aspheric surface measurement. The wavelength scanning interferometer comprises a set of tunable lasers (7) used as a light source, a twyman-green interferometer used for generating interference fringes, a translation platform (1) used for scanning an optical path difference along an optical axis, an image card (11) used for converting interference data to a digital signal and transmitting the digital signal to a computer (12), and a data card (13) used for synchronizing the actions of a ccd camera (9) and the translation platform (1).
|Wavelength-tunable light source apparatus, driving method thereof, optical tomographic image acquisition apparatus including wavelength-tunable light source apparatus, and optical tomographic image acquisition method|
A control unit configured to control the plurality of the variable-wavelength light generation units to emit the light with different wavelength simultaneously in at least part of time, and control optical intensity such that wavelength dependence of the optical intensity generated from the plurality of variable-wavelength light generation units becomes unimodal.. .
|Optical coherence tomography control systems and methods|
In part, the invention relates to methods, devices, and systems suitable for controlling a light source. The light source is configured for use in a data collection system such as an optical coherence tomography system.
|Colorimetry method and colorimetry apparatus|
An imaging section that detects the amount of light separated by a wavelength tunable interference filter to acquire a spectroscopic image (imaging device and light amount acquisition section) detects the amount of light successively separated for three wavelengths to acquire spectroscopic images for producing a combined image. A display controller causes a display section to display a combined image based on the spectroscopic images for producing the combined image.
|Flexible pifa antenna with tunable coupling element|
A modified pifa antenna is designed for wireless local area network (wlan) applications. The modified pifa antenna is configured to resist detuning effects caused by use of various cable lengths and is adapted for use in the 2.4 ghz operation band.
|Communication device with tunable ground plane antenna element|
A communication device including a ground element and an antenna element is provided. The ground element has a first edge and a second edge, wherein the first edge is substantially perpendicular to the second edge.
|Wide bandwidth resonant global clock distribution|
A wide bandwidth resonant clock distribution comprises a clock grid configured to distribute a clock signal to a plurality of components of an integrated circuit, a tunable sector buffer configured to receive the clock signal and provide an output to the clock grid, at least one inductor, at least one tunable resistance switch, and a capacitor network. The tunable sector buffer is programmable to set latency and slew rate of the clock signal.
|Low power tunable reference current generator|
An improved reference current generator for use in an integrated circuit. A voltage difference generator generates two voltages that are separated by a relatively small electrical potential.
|Tunable led lamp for producing biologically-adjusted light|
A tunable light-emitting diode (led) lamp for producing an adjustable light output is provided. In one embodiment, the led lamp includes a drive circuit for driving led dies in one of a plurality of light output configurations (e.g., a pre-sleep configuration, a phase-shift configuration, and a general lighting configuration).
|System and method for dfa-nfa splitting|
Cost factors are utilized and may be estimated to determine split points in a dfa-nfa hybrid. The cost factors may comprise nfa start states, dfa backup factor, dfa-nfa token frequency, dfa steps to match, and nfa states to match.
|Fast response nanofiber articles with tunable wettability and bulk properties|
A fibrous properties-switching article comprises a mat consisting of fibers having a fiber diameter of 2 microns or less. The fibers comprise a polymer, copolymer, polymer blend, or polymer network, wherein the fibers have a diameter of 2 gm or less.
|Athermal optical filter with active tuning and simplified control|
Embodiments of the invention describe systems, apparatuses and methods for providing athermicity and a tunable spectral response for optical filters. Finite impulse response (fir) filters are commonly implemented in photonic integrated circuits (pics) to make devices such as wavelength division multiplexing (wdm) devices, asymmetric mach-zehnder interferometers (amzis) and array waveguide gratings (awgs).
|Voltage divider control circuit|
One or more techniques or systems for controlling a voltage divider are provided herein. In some embodiments, a control circuit is configured to bias a pull up unit of a voltage divider using an analog signal, thus enabling the voltage divider to be level tunable.
|Micro-electro-mechanical system (mems) variable capacitor apparatuses and related methods|
Systems, devices, and methods for micro-electro-mechanical system (mems) tunable capacitors can include a fixed actuation electrode attached to a substrate, a fixed capacitive electrode attached to the substrate, and a movable component positioned above the substrate and movable with respect to the fixed actuation electrode and the fixed capacitive electrode. The movable component can include a movable actuation electrode positioned above the fixed actuation electrode and a movable capacitive electrode positioned above the fixed capacitive electrode.
|Tunable acoustic gradient index of refraction lens and system|
A tunable acoustic gradient index of refraction (tag) lens and system are provided that permit, in one aspect, dynamic selection of the lens output, including dynamic focusing and imaging. The system may include a tag lens and at least one of a source and a detector of electromagnetic radiation.
|Tunable optical metamaterial|
A tunable metamaterial has a two dimensional array of resonant annular ring elements; and a plurality of voltage controllable electrical tuning elements disposed in or adjacent openings in each of said ring elements, each of said voltage controllable electrical tuning element ohmically contacting portions of only one of said ring elements. The voltage controllable electrical tuning elements may comprise highly doped semiconductor tunnel diodes, or the charge accumulation layer at the semiconductor/insulator interface of a metal-insulator-semiconductor structure, or nanoelectromechanical (nems) capacitors.
|Diagnostic method for high sensitivity detection of component concentrations in human gas emissions|
A method for detecting component concentrations in human gas emissions such as breath and gas emitted from skin. A gas sample containing a specified component is collected into a gas cell using a pump and a series of valves to draw the gas sample into the cell and control the gas pressure within the cell.
|Roller for paper stack separation|
A roller includes an outer cylindrical portion and an inner cylindrical portion arranged concentrically with the outer cylindrical portion. A plurality of connection spokes are provided for connecting the outer cylindrical portion and the inner cylindrical portion to each other, wherein each of the connection spokes are connected along a non-linear connection path with respect to an axis extending between the outer cylindrical portion and the inner cylindrical portion of the roller to provide a tunable spring constant in the roller..
|Dynamic real-time calibration for antenna matching in a radio frequency receiver system|
Real-time calibration of a tunable matching network that matches the dynamic impedance of an antenna in a radio frequency receiver system. The radio frequency receiver system includes two non-linear equations that may be solved to determine the reflection coefficient of the antenna.
|High resolution fast tunable filter using a tunable comb filter|
High resolution fast tunable optical filters are described such that each filter includes a tunable single-peak narrow-bandwidth (spnb) filter and a tunable etalon in tandem with the tunable spnb filter, where the bandwidth of the tunable spnb filter is less than the free spectral range (fsr) of the tunable etalon.. .
|Metal-organic framework extrudates with high packing density and tunable pore volume|
The present invention relates to extruded shaped bodies containing at least one metal-organic framework (mof), methods for their preparation and their use.. .
|Performance evaluation system and method therefor|
An exemplary energy auditing system and a method for obtaining a validated performance solution for a plant are provided. An exemplary system and method includes at least one processor that obtains plant data for calculating one or more performance metrics.
|Transceiver with asymmetric matching network|
A system on a chip (soc) includes a transceiver comprising a transmitter and a receiver, wherein at least one of the transmitter and receiver has a configurable portion that can be configured to operate in a single ended mode and in a differential mode. Two interface pins are provided for coupling the transceiver to an antenna via a matching network, wherein the two interface pins are shareably coupled to the transmitter and to the receiver.
|Apparatus and method for monitoring wavelength tunable optical filter|
A monitoring apparatus, that monitors a wavelength tunable optical filter for filtering an optical signal to which a frequency modulation component is added, includes: an optical filter configured to filter the optical signal output from the wavelength tunable optical filter; a detector configured to detect amplitude of the frequency modulation component included in the optical signal output from the optical filter; a generator configured to generate an output-side amplitude distribution representing a distribution of the amplitude of the frequency modulation component detected by the detector, by sweeping a transmission wavelength of the optical filter; and a monitoring unit configured to monitor arrangement of a transmission wavelength band of the wavelength tunable optical filter with respect to a spectrum of the optical signal based on the output-side amplitude distribution generated by the generator.. .
|Tunable optical filter and method of manufacture thereof|
A tunable optical filter is formed in the structure of an etalon. A thin electro-optic ceramic substrate is fixed between two end substrates.
|Miniature tunable laser spectrometer for detection of a trace gas|
An open-path laser spectrometer (opls) for measuring a concentration of a trace gas, the opls including an open-path multi-pass analysis region including a first mirror, a second mirror at a distance and orientation from the first mirror, and a support structure for locating the mirrors, a laser coupled to the analysis region and configured to emit light of a wavelength range and to enable a plurality of reflections of the emitted light between the mirrors, a detector coupled to the analysis region and configured to detect a portion of the emitted light impinging on the detector and to generate a corresponding signal, and an electronic system coupled to the laser and the detector, and configured to adjust the wavelength range of the emitted light from the laser based on the generated signal, and to measure the concentration of the trace gas based on the generated signal.. .
|Light tunable device|
The present invention discloses a light tunable device includes two substrates, a light tunable layer sealed between the two substrates, two electrodes formed on the two substrates, a tuning device coupled to the two electrodes to control bias for the two electrodes to control the status of the light tunable layer to have at least three statues.. .
|Mixed organosiloxane networks for tunable surface properties for blanket substrates for indirect printing methods|
A crosslinked siloxane composition contains the polymerization product of a mixture containing from about 2 to about 12 alkoxysilane precursor materials, where at least one of the alkoxysilane precursor materials is a hydrophilic alkoxysilane precursor material, and at least one of the alkoxysilane precursor materials is a hydrophobic alkoxysilane precursor material. A method of printing an image to a substrate involves applying an inkjet ink to an intermediate transfer member using an inkjet printhead, spreading the ink onto the transfer member, inducing a property change of the ink, and transferring the ink to a substrate, where the intermediate transfer member comprises a crosslinked siloxane composition containing the polymerization product of a mixture comprising from about 2 to about 12 alkoxysilane precursor materials, where at least one of the precursor materials is hydrophilic and at least one is hydrophobic..
|Tunable cavity resonator including a plurality of mems beams|
A tunable cavity resonator includes a substrate, a cap structure, and a tuning assembly. The cap structure extends from the substrate, and at least one of the substrate and the cap structure defines a resonator cavity.
One embodiment of the invention includes a quantum processor system. The quantum processor system includes a first resonator having a first characteristic frequency and a second resonator having a second characteristic frequency greater than the first characteristic frequency.
|Implantable transient nerve stimulation device|
The invention generally relates to an implantable, tunable, and bioresorbable medical device for nerve stimulation within a body of a patient for pain management. The medical device includes a substrate, a circuit configured to provide stimulation to a target tissue, and a material surrounding the substrate and the circuit.
|Tunable filter devices and methods|
Analog interference filter devices and methods for isolation of desirable portions of a radio frequency signal. Signal compensation is used to provide desirable center frequency, passband width, ripple, rolloff, stopband and distortion performance.
|Tuning toner gloss with bio-based stabilizers|
The disclosure describes a process to produce toner with tunable gloss levels comprising a stabilizer to freeze particle growth following aggregation, where the stabilizer does not chelate metal ions.. .
A tunable earphone includes a speaker for making sound, a shell receiving the speaker and defining a resonance cavity therein, and a tunable element rotatably and removably mounted on the shell. The shell has a top thereof recessed downward to form a receiving cavity.
|Fabry-perot device with a movable mirror|
A fabry-perot tunable filter (fptf) includes a top mirror having a first surface for receiving light and a second surface opposite the first surface. A movable mirror having a front side is secured to the second surface of the top mirror and includes back side.
|Low-loss tunable radio frequency filter|
An rf filter comprises a signal transmission path having an input and an output, a plurality of resonant elements disposed along the signal transmission path between the input and the output, and a plurality of non-resonant elements coupling the resonant elements together to form a stop band having a plurality of transmission zeroes corresponding to respective frequencies of the resonant elements, and at least one sub-band between the transmission zeroes. The non-resonant elements comprise at least one variable non-resonant element for selectively introducing at least one reflection zero within the stop band to create a pass band in a selected one of the sub-band(s).
|High sensitivity micro-piezoelectric tunable resonator|
A highly sensitive micro-piezoelectric tunable resonator element and device that uses a tapered transition region from the actuator and sensor elements to the resonator beam to permit maximum mechanical energy transfer to the beam. A dual-resonator beam embodiment with a shared tuning element is provided in an alternative embodiment..
|Fan drive gear system flexible support features|
A disclosed gear assembly support for a gas turbine engine includes a first portion configured for attachment to a case of the gas turbine engine and a second portion configured for supporting a gear assembly. The support further includes a snap portion defining a fit within the case.
|New class of tunable gas storage and sensor materials|
The electronic structure of nanowires, nanotubes and thin films deposited on a substrate is varied by doping with electrons or holes. The electronic structure can then be tuned by varying the support material or by applying a gate voltage.
|Method and apparatus for wireless communicationdevice multiband tunable radio architecture|
A method and apparatus provide a wireless communication device multiband tunable radio architecture. The apparatus can include a multiband transceiver configured to transmit and receive wireless communication signals.
|Duplex filter arrangements for use with tunable narrow band antennas having forward and backward compatibility|
A transceiver module and duplexer within a communication device supports a minimized antenna volume and enhances a transfer gain for transmit and receive channels. The duplexer is communicatively coupled to one of multiple antenna and filter matching configurations which include a first configuration that couples receive and transmit filter matching circuits to a single antenna matching circuit.
|Subchannel security at the optical layer|
The present invention includes various novel systems and methods for dynamically modifying wdm transmission and receive steps (individually or in combination), including encoding client signals, mapping them to subchannels within or across itu channels, modulating them onto subcarrier frequencies, and multiplexing them together for optical transmission. By dynamically modifying one or more of these processing steps over time (as well as encrypting underlying client signals), additional security is provided at the physical (optical) layer of an optical network, thereby greatly enhancing overall network security.
|Tunable laser and photoacoustic device including the same|
A tunable laser includes a resonator including a highly reflecting mirror and a partially reflecting mirror; a gain medium disposed in the resonator; a birefringence filter disposed in the resonator; and an excitation device that excites the gain medium. In the tunable laser, light that passes through the birefringence filter oscillates between the highly reflecting mirror and the partially reflecting mirror.
|Cavity enhanced laser based isotopic gas analyzer|
Systems and methods for measuring the isotope ratio of one or more trace gases and/or components of gas mixtures such as different gas species present in a gas mixture. The system includes a resonant optical cavity having two or more mirrors and containing a gas, the cavity having a free spectral range that equals the difference between frequencies of two measured absorption lines of different gas species in the gas, or of two different isotopes, divided onto an integer number.
|Material with tunable index of refraction|
Devices are described including a component comprising an alloy of aln and alsb. The component has an index of refraction substantially the same as that of a semiconductor in the optoelectronic device, and has high transparency at wavelengths of light used in the optoelectronic device.
|Wavelength tunable interference filter, method for manufacturing wavelength tunable interference filter, optical module, and electronic apparatus|
A wavelength tunable interference filter includes an electrostatic actuator that changes the dimension of a gap between a fixed reflection film and a movable reflection film, a fixed drawn electrode and a movable drawn electrode that are connected to the electrostatic actuator, and a third substrate having a top surface portion and a sidewall portion. An end surface of the sidewall portion is bonded to a first substrate so that a space surrounded by the top surface portion, the sidewall portion, and the first substrate is hermetically sealed.
|Electrochemical liquid-liquid-solid deposition processes for production of group iv semiconductor materials|
An electrochemical liquid-liquid-solid (lls) process that produces unlimited amounts of crystalline semiconductor, such as ge or si, from aqueous or polar solutions with tunable nanostructured shapes without any physical or chemical templating agent is presented. Dissolution into, saturation within, and precipitation of the semiconductor from a liquid electrode (e.g., hg pool) or near an electrode comprising metallic nanoparticles (e.g., in nanoparticles) yields a polycrystalline semiconductor material, as deposited.
|Tandem solar cell with graphene interlayer and method of making|
A tandem solar cell with graphene interlayer and method of making are disclosed. The graphene interlayer can serve as a recombination contact to a pair of photoactive subcells electrically connected in series or as a common electrode to a pair of photoactive subcells electrically connected in parallel.
|Method and apparatus for a tunable antenna|
A method for tuning an antenna comprising determining an operating frequency band of the antenna, and adjusting a capacitance of a tunable load according to the operating frequency band, wherein the tunable load is electromagnetically coupled to the antenna via a parasitic arm, and wherein the operating frequency band depends on the capacitance.. .
|Carbon fluoride cathodes and batteries made therefrom|
Electrochemical cells containing a stoichiometric capacity ratio of carbon-treated carbon monofluoride to carbon monofluoride being greater than 1:1 provide electrochemical cells having a tunable end-of-service indication.. .
|Thermally tunable systems|
One embodiment of the present disclosure is a unique system. Another embodiment is a unique fastener system.
|Passive optical network reach extender based on wavelength tunable optical module and method thereof|
Provided are a passive optical network reach extender based on a wavelength tunable optical module and a method thereof. According to an embodiment of the invention, a passive optical network reach extender includes a first optical splitter configured to receive an optical signal from an optical line terminal and split the signal into optical signals having a multiplexed wavelength, a wavelength tunable remote relay configured to receive the optical signals split from the first optical splitter, and select and control an available wavelength for each port, a wavelength multiplexer configured to multiplex a wavelength of the optical signal output from the wavelength tunable remote relay, and a second optical splitter configured to split the optical signal multiplexed by the wavelength multiplexer into a plurality of optical network units..
|Silicon-on-insulator platform for integration of tunable laser arrays|
An apparatus comprising a silicon-on-insulator (soi) platform comprising an optical component network. An apparatus comprising an optical component network monolithically grown on a soi platform, and an optical device coupled to the optical component network.
|Method and apparatus for tuning a communication device for multi band operation|
In one example, a wireless communication device adapted for multi-band operation includes a first antenna, a first diplexer configured to pass signals within first and second sets of frequency bands, first and second signal paths, wherein each signal path includes a set of notch filters tunable to attenuate a different frequency. The wireless communication device includes a second antenna, a second diplexer configured to pass the first and second frequency bands, third and fourth signal paths, wherein each of the third and fourth signal paths includes one or more notch filters tunable to attenuate a different frequency, and a transceiver coupled to each signal path..
|Methods and apparatus for 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.
A tunable capacitor includes a substrate, a movable member, a first capacitive plate, a second capacitive plate, a third capacitive plate and a set of electrode plates. The movable member is disposed on the substrate.
|System and method for stabilizing mode locked swept laser for oct medical imaging|
An optical coherence analysis system uses a laser swept source that is constrained to operate in a stable mode locked condition by modulating a drive current to the semiconductor optical amplifier as function of wavelength or synchronously with the drive voltage of the laser's tunable element based on stability map for the laser.. .
|Method for measuring concentration of a gas component in a measurement gas|
A method in which the wavelength of the light of a tunable light source is varied periodically over an absorption line of interest for the gas component to measure the concentration of a gas component in a measurement gas based on one of two measurement methods of direct absorption spectroscopy and wavelength modulation spectroscopy and, where in the case of wavelength modulation spectroscopy, the wavelength of the light is additionally sinusoidally modulated at a high frequency and with a small amplitude, where the intensity of the light is detected after transradiation of the measurement gas and processed to yield a measurement result, and where in order to increase the accuracy and reliability of the measurement, the two measurement methods are applied simultaneously during each period, or alternately in consecutive periods, and their results are combined by averaging to form the measurement result.. .
|System and method for lithography alignment|
The present disclosure provides one embodiment of a lithography system for integrated circuit making. The system includes a substrate stage designed to secure a substrate and being operable to move the substrate; an alignment module that includes a tunable light source being operable to generate an infrared light with a wavelength tunable; and a detector to receive the light; and an exposing module integrated with the alignment module and designed to performing an exposing process to a resist layer coated on the substrate..