Mclaurin
Christopher B. Mclaurin, Cary, NC US
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20150029717 | SHAPED MICROSTRUCTURE-BASED OPTICAL DIFFUSERS FOR CREATING BATWING AND OTHER LIGHTING PATTERNS - A light distribution device includes a light transmissive substrate having first and second opposing faces and a plurality of substantially parallel linear prisms on the second face that extend in a longitudinal direction of the substrate. The light distribution device is configured to connect to a light assembly including a linear light source with the first face of the substrate facing the light source, with the linear prisms substantially parallel to a light source longitudinal axis and with and the substrate having a non-planar cross-sectional shape such that at least a major portion of the substrate is concave relative to the light source. When connected, the light distribution device is configured to receive light from the light source and distribute the light emerging from the second face of the substrate in a batwing distribution pattern in a plane perpendicular to the light source longitudinal axis. | 01-29-2015 |
David Mclaurin, Durham, NC US
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20110285464 | APPARATUS AND METHOD FOR LOW NOISE AMPLIFICATION - Apparatus and methods are disclosed, such as those involving a low noise amplifier. One such apparatus includes a low noise amplifier circuit configured to receive a signal at an input node and to output an amplified signal at an output node. The low noise amplifier circuit includes a first transistor of a first polarity; and a second transistor of a second polarity complementary to the first polarity. The first and second transistors are connected in series between first and second supply voltage nodes via the output node. The circuit further includes a third transistor cascoded with one of the first transistor or the second transistor, but does not include a transistor cascoded with the other transistor. This configuration allows the low noise amplifier circuit to provide an increased high-frequency gain and linearity while having improved high-frequency system noise figure in, for example, deep submicron CMOS technology. | 11-24-2011 |
20120149321 | APPARATUS AND METHOD FOR RADIO FREQUENCY RECEPTION WITH TEMPERATURE AND FREQUENCY INDEPENDENT GAIN - Apparatus and methods are disclosed, such as those involving an RF receiver. One such apparatus includes a front end having an input and an output. The front end forms part of an RF signal receive path. The front end includes a front-end resistor configured to receive an input signal; and a passive mixer downstream of the front-end resistor on the receive path. The passive mixer mixes the input signal with a local oscillation signal. The front-end includes a transimpedance amplifier located downstream of the passive mixer on the receive path. The transimpedance amplifier includes an input and an output. The front end further includes a feedback resistor coupled between the input and output of the transimpedance amplifier. The gain of the front end is a ratio of the feedback resistance to the front-end resistance, and is temperature- and frequency-insensitive. The apparatus also provides relatively constant input impedance and high linearity. | 06-14-2012 |
David J. Mclaurin, Durham, NC US
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20140065989 | SYSTEM AND METHOD TO IMPLEMENT A RADIO TRANSMITTER WITH DIGITAL PREDISTORTION HAVING REDUCED NOISE - A system and method provide for a radio transmitter with digital predistortion. The radio transmitter includes a high output power narrowband upconverter and a low output power wideband upconverter. In a stage of the radio transmitter, digital predistortion is applied to transmit data by setting digital coefficients by a digital predistortion algorithm, resulting in a predistortion signal. A predistortion signal is separated into a narrowband component and a wideband component, where the narrowband component corresponds to a desired traffic signal and the wideband component corresponds to a digital predistortion signal reflecting separated digital predistortion correction products. The narrowband upconverter provides a transmission path for a desired traffic signal or transmit data (the narrowband component of the digital predistortion signal), while the wideband upconverter provides a transmission path for the wideband component representing digital predistortion correction products. | 03-06-2014 |
20140105264 | SYSTEM AND METHOD TO CALIBRATE THE FREQUENCY RESPONSE OF AN ELECTRONIC FILTER - A system and method provide for calibrating the frequency response of an electronic filter. The system and method include a radio transmitter with both in-phase and quadrature baseband paths. Each baseband path includes a numerically controlled oscillator (“NCO”), a digital signal path, a digital-to-analog converter (“DAC”), and an analog filter. A low frequency tone is applied from the NCO from one of the baseband path, while a high frequency tone is applied from the NCO in the other baseband path. An analog peak detector at output determines which analog filter has the largest amplitude at the output. The peak detector offset between the two analog filters is offset by stimulating the in-phase and quadrature baseband paths with the respective NCOs to find an amplitude difference between the output signals from the NCOs that makes the output of the analog filters the same. Calibration is then performed on the corner frequency and filter peaking through respective stimulation of the in-phase and quadrature baseband paths. The system and method is advantageous as it allows for very accurate calibration of both the filter corner frequency and peaking during a standard transmission operating mode with little additional hardware required. | 04-17-2014 |
20140266825 | SYSTEM, METHOD AND RECORDING MEDIUM FOR ANALOG TO DIGITAL CONVERTER CALIBRATION - A calibration system for an analog-to-digital converter (ADC) an internal ADC that receives an analog input and converts the analog input to digital multi-bit data. The calibration system also includes a reference shuffling circuit that shuffles reference values of comparators of the internal ADC. Further, the calibration system includes a calibration circuit that calibrates the comparators of the internal ADC. The calibration system includes a digital block that measures an amplitude based on the digital multi-bit data. Additionally, the calibration system includes calibration logic that controls the calibration circuit based on an output of the digital block. | 09-18-2014 |
20140269852 | RADIO FREQUENCY TRANSMITTER NOISE CANCELLATION - Transmitter noise cancellation may be applied on a channel by channel basis to active channels of an incoming radio frequency signal received at a receiver. A noise cancellation filter may be provided for each active channel in a predetermined signal band. Applying noise cancellation on a per active channel basis instead of to the entire receive band may substantially reduce the filtering requirement and number of filter coefficients or taps to save power and reduce manufacturing costs. Channelized transmitter noise cancellers, multi transmitter-receiver cross coupling cancellers, and hybrid full signal band and channelized transmitter noise cancellers are also provided. | 09-18-2014 |
20140269863 | TRANSMITTER LO LEAKAGE CALIBRATION SCHEME USING LOOPBACK CIRCUITRY - A method and apparatus for estimating and compensating TX LO leakage using circuitry on a loopback path connecting the transmitter and receiver are provided. The TX LO leakage may be estimated by measuring the DC signal on the receiver, measuring the phase difference between the received LO signal and the receiver LO signal, and filtering LO harmonics that may arise from the use of non-linear mixers. The DC signal on the receiver may be measured by opening and closing the loopback path, or changing the gain of the loopback path, or flipping the phase of looped back TX signal. The method may be used in an initialization or tracking calibration scheme. | 09-18-2014 |
20150030102 | WIDEBAND QUADRATURE ERROR CORRECTION - A transmission module is provided that includes a transmitter, a loopback receiver, and a QEC controller. In a first state, the QEC controller calibrates the loopback receiver to remove quadrature imbalance in the loopback receiver. In a second state, a communication pathway is provided between the transmitter and the loopback receiver, and the QEC controller identifies quadrature imbalance in the transmitter based at least one a comparison of the data signals at the output of the loopback receiver with data signals at the input of the transmitter. Based on the comparison, the QEC controller can adjust one or more characteristics of the transmitter to correct quadrature errors in the transmitter. | 01-29-2015 |
20150030103 | WIDEBAND QUADRATURE ERROR DETECTION AND CORRECTION - A transmission module is provided that includes a transmitter, a loopback receiver, and a QEC controller. The QEC controller identifies quadrature imbalance in the transmitter based at least one a comparison of the data signals at the output of the loopback receiver with data signals at the input of the transmitter. Based on the comparison, the QEC controller can adjust one or more characteristics of the transmitter to correct quadrature errors in the transmitter. | 01-29-2015 |
David J. Mclaurin, Raleigh, NC US
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20150070200 | System, Method and Recording Medium for Analog to Digital Converter Calibration - A calibration system for an analog-to-digital converter (ADC) an internal ADC that receives an analog input and converts the analog input to digital multi-bit data. The calibration system also includes a reference shuffling circuit that shuffles reference values of comparators of the internal ADC. Further, the calibration system includes a calibration circuit that calibrates the comparators of the internal ADC. The calibration system includes a digital block that measures an amplitude based on the digital multi-bit data. Additionally, the calibration system includes calibration logic that controls the calibration circuit based on an output of the digital block. | 03-12-2015 |
20150084676 | APPARATUS AND METHODS FOR SYNCHRONIZING PHASE-LOCKED LOOPS - Apparatus and methods for synchronizing phase-locked loops (PLLs) are provided. In certain implementations, a fractional-N synthesizer includes a PLL and a control circuit that controls a division value of the PLL. The control circuit includes an interpolator, a reset phase adjustment calculator, and a synchronization circuit. The interpolator can control a fractional portion of the PLL's division value. The reset phase adjustment calculator can include a counter for counting a number of cycles of the reference clock signal since initialization of the fractional-N synthesizer, and the reset phase adjustment calculator can generate a phase adjustment signal based on the count. The synchronization circuit can synchronize the PLL in response to a synchronization signal, and can correct for a synchronization phase error indicated by the phase adjustment signal. | 03-26-2015 |
Emily J. Mclaurin, Seattle, MA US
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20110243849 | HEME-BINDING PHOTOACTIVE POLYPEPTIDES AND METHODS OF USE THEREOF - The present disclosure provides photoactive polypeptides. A subject photoactive polypeptide is useful in a variety of applications, which are also provided. | 10-06-2011 |
Emily Jane Mclaurin, Seattle, WA US
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20130140506 | HOST-GUEST MATERIALS HAVING TEMPERATURE-DEPENDENT DUAL EMISSION - A composition is provided comprising a host material and a luminescent dopant. The composition exhibits dual luminescent emission peaks, one each for the host material and the luminescent dopant. The intensity of the emission peaks vary in intensity as a result of the changing temperature of the composition. This quality enables the composition to be used for ratiometric optical thermometry, including exemplary applications, such as in situ temperature sensing. | 06-06-2013 |
Keith B. Mclaurin, Orlando, FL US
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20110088399 | Combined Cycle Power Plant Including A Refrigeration Cycle - A method and system for augmenting the output of a combined cycle power plant having a gas turbine driving a generator, a heat recovery steam generator that recovers exhaust heat from the gas turbine to drive a steam turbine also driving a generator, and a refrigeration element that is powered by available energy in steam exhausted from the steam turbine to cool water. The refrigeration element employs a substantially closed cycle refrigeration system that, in a preferred embodiment, is either an absorption chilling system or a thermal compression chilling system. The refrigeration element provides cool water to an inlet chiller arranged to chill inlet to the gas turbine to augment the power output of the gas turbine and the water is recirculated to be chilled and used again. Since the refrigeration cycle is substantially closed, little or no additional plant water consumption is imposed on the power plant. | 04-21-2011 |
Matthew Brent Mclaurin, Carrollton, TX US
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20140245706 | TOOL-LESS AUTO-ALIGNING FILTER RETENTION SYSTEM - A filter retention system for releasably retaining a filter cartridge in an operable position within air supply and air exhaust systems is comprised of a filter cartridge, filter retainers, mounting frame with integral sealing knife edge and filter alignment brackets. The filter retainers allow for installation and removal of the filter cartridge without the use of tools. The retention system automatically aligns filter cartridges such that an airtight seal is created between the sealant containing groove in the filter cartridge and the sealing knife edge of the retention system. | 09-04-2014 |
20140245710 | TOOL-LESS AUTO-ALIGNING FILTER RETENTION SYSTEM - A filter retention system for releasably retaining a filter cartridge in an operable position within air supply and air exhaust systems is comprised of a filter cartridge, filter retainers, mounting frame with integral sealing knife edge and filter alignment brackets. The filter retainers allow for installation and removal of the filter cartridge without the use of tools. The retention system automatically aligns filter cartridges such that an airtight seal is created between the sealant containing groove in the filter cartridge and the sealing knife edge of the retention system. | 09-04-2014 |
Melvin B. Mclaurin, Goleta, CA US
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20110193094 | GROWTH OF PLANAR REDUCED DISLOCATION DENSITY M-PLANE GALLIUM NITRIDE BY HYDRIDE VAPOR PHASE EPITAXY - A method of growing highly planar, fully transparent and specular m-plane gallium nitride (GaN) films. The method provides for a significant reduction in structural defect densities via a lateral overgrowth technique. High quality, uniform, thick m-plane GaN films are produced for use as substrates for polarization-free device growth. | 08-11-2011 |
20120068192 | CRYSTAL GROWTH OF M-PLANE AND SEMIPOLAR PLANES OF (Al, In, Ga, B)N ON VARIOUS SUBSTRATES - A method of reducing threading dislocation densities in non-polar such as a-{11-20} plane and m-{1-100} plane or semi-polar such as {10-1n} plane III-Nitrides by employing lateral epitaxial overgrowth from sidewalls of etched template material through a patterned mask. The method includes depositing a patterned mask on a template material such as a non-polar or semi polar GaN template, etching the template material down to various depths through openings in the mask, and growing non-polar or semi-polar III-Nitride by coalescing laterally from the tops of the sidewalls before the vertically growing material from the trench bottoms reaches the tops of the sidewalls. The coalesced features grow through the openings of the mask, and grow laterally over the dielectric mask until a fully coalesced continuous film is achieved. | 03-22-2012 |
Melvin B. Mclaurin, Mountain View, CA US
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20100032793 | METHODS FOR RELAXATION AND TRANSFER OF STRAINED LAYERS AND STRUCTURES FABRICATED THEREBY - The present invention provides methods for forming at least partially relaxed strained material layers on a target substrate. The methods include forming islands of the strained material layer on an intermediate substrate, at least partially relaxing the strained material islands by a first heat treatment, and transferring the at least partially relaxed strained material islands to the target substrate. The at least partial relaxation is facilitated by the presence of low-viscosity or compliant layers adjacent to the strained material layer. The invention also provides semiconductor structures having an at least partially relaxed strained material layer, and semiconductor devices fabricated using an at least partially relaxed strained material layer. | 02-11-2010 |
20100072489 | SEMICONDUCTOR LIGHT EMITTING DEVICES GROWN ON COMPOSITE SUBSTRATES - A plurality of III-nitride semiconductor structures, each comprising a light emitting layer disposed between an n-type region and a p-type region, are grown on a composite substrate. The composite substrate includes a plurality of islands of III-nitride material connected to a host by a bonding layer. The plurality of III-nitride semiconductor structures are grown on the III-nitride islands. The composite substrate may be formed such that each island of III-nitride material is at least partially relaxed. As a result, the light emitting layer of each semiconductor structure has an a-lattice constant greater than 3.19 angstroms. | 03-25-2010 |
20100224852 | III-NITRIDE LIGHT EMITTING DEVICE INCORPORATING BORON - Embodiments of the invention include a III-nitride semiconductor structure comprising a light emitting region disposed between an n-type region and a p-type region. At least one layer in the light emitting region is B | 09-09-2010 |
20110175112 | III-V LIGHT EMITTING DEVICE INCLUDING A LIGHT EXTRACTING STRUCTURE - Embodiments of the invention include a substrate comprising a host and a seed layer bonded to the host, and a semiconductor structure comprising a light emitting layer disposed between an n-type region and a p-type region grown over the seed layer. A variation in index of refraction in a direction perpendicular to a growth direction of the semiconductor structure is disposed between the host and the light emitting layer. | 07-21-2011 |
20110177631 | METHOD OF FORMING A COMPOSITE SUBSTRATE AND GROWING A III-V LIGHT EMITTING DEVICE OVER THE COMPOSITE SUBSTRATE - A method according to embodiments of the invention includes providing a substrate comprising a host and a seed layer bonded to the host. The seed layer comprises a plurality of regions. A semiconductor structure comprising a light emitting layer disposed between an n-type region and a p-type region is grown on the substrate. A top surface of a semiconductor layer grown on the seed layer has a lateral extent greater than each of the plurality of seed layer regions. | 07-21-2011 |
20110180911 | METHODS FOR RELAXATION AND TRANSFER OF STRAINED LAYERS AND STRUCTURES FABRICATED THEREBY - The present invention provides methods for forming at least partially relaxed strained material layers on a target substrate. The methods include forming islands of the strained material layer on an intermediate substrate, at least partially relaxing the strained material islands by a first heat treatment, and transferring the at least partially relaxed strained material islands to the target substrate. The at least partial relaxation is facilitated by the presence of low-viscosity or compliant layers adjacent to the strained material layer. The invention also provides semiconductor structures having an at least partially relaxed strained material layer, and semiconductor devices fabricated using an at least partially relaxed strained material layer. | 07-28-2011 |
20120214291 | RELAXATION OF STRAINED LAYERS - A method for relaxing a layer of a strained material. The method includes depositing a first low-viscosity layer on a first face of a strained material layer; bonding a first substrate to the first low-viscosity layer to form a first composite structure; subjecting the composite structure to heat treatment sufficient to cause reflow of the first low-viscosity layer so as to at least partly relax the strained material layer; and applying a mechanical pressure to a second face of the strained material layer wherein the second face is opposite to the first face and with the mechanical pressure applied perpendicularly to the strained material layer during at least part of the heat treatment to relax the strained material. | 08-23-2012 |
20120241798 | III-V LIGHT EMITTING DEVICE INCLUDING A LIGHT EXTRACTING STRUCTURE - Embodiments of the invention include a substrate comprising a host and a seed layer bonded to the host, and a semiconductor structure comprising a light emitting layer disposed between an n-type region and a p-type region grown over the seed layer. A variation in index of refraction in a direction perpendicular to a growth direction of the semiconductor structure is disposed between the host and the light emitting layer. | 09-27-2012 |
Melvin Barker Mclaurin, Eindhoven NL
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20150115299 | III-NITRIDE LIGHT EMITTING DEVICE - A device includes a substrate ( | 04-30-2015 |
Melvin Barker Mclaurin, San Jose, CA US
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20130244364 | METHOD OF FORMING A COMPOSITE SUBSTRATE - In a method according to embodiments of the invention, a III-nitride layer is grown on a growth substrate. The III-nitride layer is connected to a host substrate. The growth substrate is removed. The growth substrate is a non-III-nitride material. The growth substrate has an in-plane lattice constant a substrate. The III-nitride layer has a bulk lattice constant a layer. In some embodiments, [(| | 09-19-2013 |
20140048817 | LIGHT EMITTING DEVICE WITH IMPROVED EXTRACTION EFFICIENCY - In embodiments of the invention, a semiconductor structure comprising a III-nitride light emitting layer disposed between an n-type region and a p-type region is grown on a substrate. The substrate is a non-III-nitride material. The substrate has an in-plane lattice constant a | 02-20-2014 |
Patricia E. Mclaurin, Bayonne, NJ US
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20100144242 | BRASSIERE WITH IMPROVED SIDE PANEL CONSTRUCTION - A brassiere having flexibility, durability, and improved comfort for the wearer is provided. The side panel of the bra comprises a folded fabric and two elastic bands. The folded fabric has two opposing longitudinal edges, a top edge, and a bottom edge. Each of the two elastic bands is positioned in the interior of the folded fabric along a respective longitudinal edge, which also includes notches for orienting the bands. The folded fabric is sewn together at each of the top and bottom edges such that the two elastic bands are held in place. One of the longitudinal edges may be formed by sewing the folded fabric together to form a seam using a pull-out stitch. Each of the two elastic bands may include either of a woven elastic band or a knitted elastic band. | 06-10-2010 |
20100267313 | WIRE-FREE BRASSIERE - A lightweight, substantially unpadded, comfortable, push-in, wire-free bra has, when worn by a female wearer, a front including a pair of cups. Each cup defines upper inner and outer portions, lower inner and outer portions, a top, and a bottom, and is configured and dimensioned to hold substantially one breast of a female wearer. Each cup includes a sling portion that is designed to provide lateral support to the respective breast. In this manner, the sling portions bias the cup upper outer portions inwardly to provide push-in cleavage on the wearer's breasts. Straps are secured to the front for releasably supporting it on a female wearer with the breasts of the female wearer substantially within the cups. | 10-21-2010 |
Silvester R. Mclaurin, New Haven, CT US
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20110219662 | Electric Shock Fishing Lure Apparatus - An electric shock fishing lure apparatus includes a main housing body portion defining an interior area. A battery is positioned in the interior area. A conductive switch shaft is electrically connected to the battery and is situated in a distal end of the main body portion and movable between an extended configuration in which the switch shaft is energized by electrical current from the battery and a retracted configuration in which the switch shaft is not energized by current from the battery. A spring is coupled to the switch shaft and to the distal end of the housing for biasing the switch shaft toward the retracted configuration. A hook member is situated outside the interior area of the main housing body portion and operatively coupled to an outside end of the switch shaft, the electrically conductive hook member being energized when the switch shaft is at the extended configuration. | 09-15-2011 |
Teresa Louise Mclaurin, Austin, TX US
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20130256908 | INTER-DIE CONNECTION WITHIN AN INTEGRATED CIRCUIT FORMED OF A STACK OF CIRCUIT DIES - An integrated circuit is formed of a plurality of circuit dies | 10-03-2013 |
Teresa Louise Mclaurin, Dripping Springs, TX US
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20090177935 | Scan chain cell with delay testing capability - A scan chain cell | 07-09-2009 |
20120166902 | Integrated circuit testing - An integrated circuit | 06-28-2012 |
Wayne J. Mclaurin, Poplarville, MS US
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20130104269 | Crapemyrtle plant named 'tishomingo' - A new and distinct cultivar of | 04-25-2013 |
20130104270 | Crapemyrtle plant named 'pascagoula' - A new and distinct cultivar of | 04-25-2013 |
20130104271 | Crapemyrtle plant name 'sequoyah' - A new and distinct cultivar of | 04-25-2013 |
20130104272 | Crapemyrtle plant named 'shumaka' - A new and distinct cultivar of | 04-25-2013 |
20130104273 | Crapemyrtle plant named 'neshoba' - A new and distinct cultivar of | 04-25-2013 |