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Search Patents

Displaying 101 - 125 of 286

Method And Apparatus For Optimal Dynamic Spectrum Access In LTE Systems

NIST Inventors
Anirudha Sahoo and Timothy A. Hall
A method and apparatus for optimal dynamic spectrum access (DSA) by a Secondary User (SU) in a Primary User (PU) LTE network is proposed. The cumulative hazard function from Survival Analysis is used to determine the probability of an SU successfully transmitting over a certain number of Physical

Self-Referenced Ambient Radiation Thermometer

NIST Inventors
Howard W. Yoon
In this work, we describe the construction and characterization of an Ambient-Radiation Thermometer (ART) which can measure non-contact temperatures from -50 deg C to 150 deg C. To increase the long-term stability of the responsivity, optical components within the field-of-view of the detector and

Closed-loop Controlled Chemical Apparatus

NIST Inventors
Arvind Balijepalli , Curt A. Richter and Son T. Le
A closed-loop controlled chemical apparatus includes: a compound sensor including: an analyte sensor and that: produces, by the analyte sensor, a voltage signal; a reference sensor in electrical communication with the analyte sensor; a transistor including a gate terminal such that a drain current
Lithium magneto-optical trap-based ion source (Li MOTIS).

Prelithiated Lithium Ion Battery And Making A Prelithiated Lithium Ion Battery

NIST Inventors
Christopher Soles , Vladimir Oleshko and Jabez J McClelland
The proposed method allows the injection of Li+ ions directly into the material and does not need the wet chemical or electrochemical prelithiation with liquid electrolytes and metallic lithium foils, sacrificial additives, donors, or mechanical mixing with SLMP, inducing consumption of lithium for
Ultra-conformal microprint technology used to micropattern 3D surfaces that are geometrically too challenging for patterning with conventional microfabrication systems.

Ultra-Conformal Microprint and Ultra-Conformal Microprint Transferring

NIST Inventors
Gary Zabow
This invention is a new method of transferring (“transfer printing”) microstructures or micropatterns created on a first surface onto a second receiving surface, where the second surface may be highly uneven or curved or in some other way incompatible with the fabrication process requirements of the
Illustration a-d showing how the multidimensional printer works.

Multidimensional Printer

NIST Inventors
Glenn Holland and Andrei Kolmakov
In our invention, the electron or X-ray beam penetrates the liquid from the vacuum after passing through the ultra-thin separating membrane and crosslinks the polymer molecules in the liquid solution within the interaction volume. Additive layer-by-layer fabrication can be achieved via

Optical Refraction Barometer

NIST Inventors
Kevin O Douglass , Stephen Eckel , Jacob Edmond Ricker and Jay H. Hendricks
A new method for measuring refractivity-based pressure changes using a dual Fabry-Perot cavity utilizing a single laser with off-set sideband locking to the second cavity. The method thus far has shown sensitivity and resolution of 4 mPa.

Quantum Waveguide Infrared Photodetector

NIST Inventors
Eric Stanton
A novel quantum well infrared photodetector (QWIP) is proposed, which provides an unprecedented signal-to-noise ratio compared any other infrared detector. The key feature is the ability to inject light in the absorbing regions in the plane of the detector material layers, rather than surface normal

Quantum Waveguide Infrared Photodetector

NIST Inventors
Eric Stanton
A novel quantum well infrared photodetector (QWIP) is proposed, which provides an unprecedented signal-to-noise ratio compared any other infrared detector. The key feature is the ability to inject light in the absorbing regions in the plane of the detector material layers, rather than surface normal

Metallic Grating

NIST Inventors
Daniel Josell and Thomas P. Moffat
A metallic grating includes a substrate; a plurality of high aspect ratio trenches disposed in the substrate such that the high aspect ratio trenches are spaced apart from one another by a field surface of the substrate; a metallic superconformal filling formed and disposed in the high aspect ratio

Single Quantum Emitter Single Photon Source And Producing A Single Photon Stream

NIST Inventors
Marcelo Davanco
A single quantum emitter single photon source produces a single photon stream and includes: a single-mode excitation waveguide that receives a pump light, propagates pump light as resonant excitation light, and produces evanescent excitation light; a separation gap between single-mode excitation

Amino Acid-specific Binder and Selectively Identifying an Amino Acid

NIST Inventors
Zvi Kelman and John P. Marino
One of the central challenges in the development of single-molecule protein sequencing technologies is achieving high- fidelity, sequential recognition and detection of specific amino acids that comprise the peptide sequence. The N-End Rule Pathway adaptor protein ClpS, natively recognizes N

Scanning Microwave Ellipsometer And Performing Scanning Microwave Ellipsometry

NIST Inventors
Chris Long , Nate Orloff and Edward Garboczi
A scanning microwave ellipsometer includes: a microwave ellipsometry test head including: a polarization controller; a transmission line; and a sensor that produces sensor microwave radiation, subjects a sample to the sensor microwave radiation, receives a sample reflected microwave radiation from

Scanning Microwave Ellipsometer And Performing Scanning Microwave Ellipsometry

NIST Inventors
Chris Long , Nate Orloff and Edward Garboczi
New strong, light, and compact formed carbon fiber components require shorter, higher-aspect ratio carbon fibers. Shorter carbon fibers must be aligned to realize the desired tensile strength. Before this invention, industry lacked a tool to characterize carbon fiber alignment for inline quality
An automated comparison measurement between two PJVS systems using an analog nanovoltmeter

Josephson Voltage Standard

NIST Inventors
Samuel P. Benz , Paul Dresselhaus , Alain Rufenacht , Nathan Flowers-Jacobs and Anna Fox
It was determined that a device having simultaneous voltage reference signals would be useful for many measurement and calibration activities. A JVS advantageously having multiple output leads would meet this criterion, and provide such voltage references without the need for multiple systems
This circuit measures the timing jitter, or variation, in the arrival time of a repetitive electrical signal of interest, such as from the output of a single-photon detector under short-pulse illumination. An ultra-low jitter clock that is synchronous with the repetition rate of the input signal is slowly swept in time (by some external means of phase delay) with respect to the input signal.

Temporal Jitter Analyzer And Analyzing Temporal Jitter

NIST Inventors
Joshua Bienfang
This is a simple method to measure the jitter, or temporal variation, of a repeated event. The method is based on simple electronic circuitry and can achieve measurement resolution on the order of hundreds of femtoseconds.
Displaying 101 - 125 of 286
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