Search

Results 326–350 of 1,914

Devices and methods for increasing the speed or power efficiency of a computer when performing machine learning using spiking neural networks

Patent • #US11755891B2. A method for increasing a speed and efficiency of a computer when performing machine learning using spiking neural networks. The method includes computer-implemented operations; that is, operations that are solely executed on a computer. The method includes receiving, in a spiking neural network, a plurality of input values upon...

Devices and methods to detect and quantify trace gases

Patent • #US9329154B1. Sensing devices based on a surface acoustic wave (“SAW”) device coated with an absorbent crystalline or amorphous layer for detecting at least one chemical analyte in a gaseous carrier. Methods for detecting the presence of a chemical analyte in a gaseous carrier using such devices are also disclosed. The...

Devices for studying plant-fungus interactions and for imaging plant roots

Patent • #US11993764B2. This disclosure provides systems, methods, and apparatus related to the determination of ecological processes. In one aspect, a device includes a base and a substrate in contact with a first side of the base. The base defines a stem port. The substrate and the first side of the base...

Diamond-like carbon films and uses thereof

Patent • #US10941485B2. The present invention relates to methods of forming a film between two surfaces, in which the film includes diamond-like carbon. Also provided herein are uses of such films, such in sliding contacts and in metal coatings.

Die singulation method

Patent • #US8461023B1. A method is disclosed for singulating die from a semiconductor substrate (e.g. a semiconductor-on-insulator substrate or a bulk silicon substrate) containing an oxide layer (e.g. silicon dioxide or a silicate glass) and one or more semiconductor layers (e.g. monocrystalline or polycrystalline silicon) located above the oxide layer. The method...

Die singulation method

Patent • #US8623744B1. A method is disclosed for singulating die from a semiconductor substrate (e.g. a semiconductor-on-insulator substrate or a bulk silicon substrate) containing an oxide layer (e.g. silicon dioxide or a silicate glass) and one or more semiconductor layers (e.g. monocrystalline or polycrystalline silicon) located above the oxide layer. The method...

Die singulation method and package formed thereby

Patent • #US8236611B1. A method is disclosed for singulating die from a substrate having a sacrificial layer and one or more device layers, with a retainer being formed in the device layer(s) and anchored to the substrate. Deep Reactive Ion Etching (DRIE) etching of a trench through the substrate from the bottom...

Dielectrophoretic columnar focusing device

Patent • #US7713395B1. A dielectrophoretic columnar focusing device uses interdigitated microelectrodes to provide a spatially non-uniform electric field in a fluid that generates a dipole within particles in the fluid. The electric field causes the particles to either be attracted to or repelled from regions where the electric field gradient is large,...

Differential emitter geolocation

Patent • #US9110147B1. An unknown location of a transmitter of interest is determined based on wireless signals transmitted by both the transmitter of interest and a reference transmitter positioned at a known location. The transmitted signals are received at a plurality of non-earthbound platforms each moving in a known manner, and phase...

Differential transimpedance amplifier circuit for correlated differential amplification

Patent • #US7403065B1. A differential transimpedance amplifier circuit for correlated differential amplification. The amplifier circuit increase electronic signal-to-noise ratios in charge detection circuits designed for the detection of very small quantities of electrical charge and/or very weak electromagnetic waves. A differential, integrating capacitive transimpedance amplifier integrated circuit comprising capacitor feedback loops performs...

Diffraction: Enhanced Light Absorption of Solar Cells and Photodetectors

Featured Opportunity • The solar and photovoltaic industry has grown steadily over the last several years.In order to maintain these growth rates, the processes and methods need to be continuously improved.Sandia National Laboratories has created a method for enhanced light absorption of solar cells and photodetectors in a narrowband or wideband spectral absorption....

Digital Communication

Featured Opportunity • Many communication systems employ multi-channels that transmit and receive a common signal. In these systems, the common signal is combined at thereceiver to achieve maximum channel capacity. During the combining of such signals the delay and phase parameters are estimated based on a convolution decoding operation and are removed from...

Digital twin advanced distribution management systems (ADMS) and methods

Patent • #US11881713B1. Advanced Distribution Management Systems not generally optimize over the entire feeder because there are few high-fidelity distribution circuit models and real-time distribution-connected sensors are rare. The limited observability at the distribution level makes it difficult to globally optimize distribution operations and issue control setpoints to power systems equipment or...

Diode and method of making the same

Patent • #US9917149B1. A diode includes a second semiconductor layer over a first semiconductor layer. The diode further includes a third semiconductor layer over the second semiconductor layer, where the third semiconductor layer includes a first semiconductor element over the second semiconductor layer. The third semiconductor layer additionally includes a second semiconductor...

Direct access inter-process shared memory

Patent • #US8566536B1. A technique for directly sharing physical memory between processes executing on processor cores is described. The technique includes loading a plurality of processes into the physical memory for execution on a corresponding plurality of processor cores sharing the physical memory. An address space is mapped to each of the...

Direct air capture of carbon dioxide with nanofluidic flows

Patent • #US12667806B1. A system for direct air capture of CO2 (DACC) includes a membrane formed from compacted layered material and configured to draw CO2 and H2O from air on a feed side of the membrane into interlayers in the membrane through gas over-solubility induced by nanopore confinement and a differential solubility...

Direct contact particle-fluid heat exchanger

Patent • #US11674757B1. The present disclosure is directed to systems and methods that transfer heat directly from hot particles to a cold fluid, such as sCO2, by bringing the hot particles and cold fluid into direct contact at the operating pressure of the cold fluid. These systems and methods can both stand-off...

Direct Detector for Terahertz Radiation

Featured Opportunity • A direct detector that is a depletion mode field-effect transistor built from heterostructures and consisting of electrical contacts and a grating-gate There has been much interest expressed in terahertz technology due to the diverse range of applications that it applies to. However, the terahertz components have been known to perform...

Direct formation of gold nanoparticles using ultrasound

Patent • #US10500643B2. The invention provides a green chemistry, aqueous method to synthesize gold nanoparticles directly from bulk gold sources. The method involves the ultrasonication of bulk gold in water in the presence of an alkythiol species and a quaternary ammonium surfactant. An organic bilayer forms on the surface of the gold...

Direct formation of metal nanoparticles using ultrasound

Patent • #US10518330B2. A method for creating nanoparticles directly from bulk metal by applying ultrasound to the surface in the presence of a two-part surfactant system. Implosive collapse of cavitation bubbles near the bulk metal surface generates powerful microjets, leading to material ejection. This liberated material is captured and stabilized by a...

Direct synthesis of calcium borohydride

Patent • #US7608233B1. A method is disclosed for directly preparing an alkaline earth metal borohydride, i.e. Ca(BH4)2, from the alkaline earth metal hydride and the alkaline earth metal boride. The borohydride thus prepared is doped with a small portion of a metal chloride catalyst compound, such as RuCl3, TiCl3, or a mixture...

Direct synthesis of magnesium borohydride

Patent • #US8147788B1. A method is disclosed for directly preparing an alkaline earth metal borohydride, i.e. Mg(BH4)2, from the alkaline earth metal boride MgB2 by hydrogenating the MgB2 at an elevated temperature and pressure. The boride may also be doped with small amounts of a metal chloride catalyst such as TiCl3 and/or...

Direct view zoom scope with single focal plane and adaptable reticle

Patent • #US9494787B1. A direct view telescopic sight includes objective lens, eyepiece, and prism erector assemblies. The objective lens assembly is mounted to receive light of an image from an object direction and direct the light along an optical path. The eyepiece assembly is mounted to receive the light along the optical...

Directional infrasound sensing

Patent • #US11287506B2. A method and apparatus for determining a direction of infrasound. Infrasound is received by a directional infrasound sensor comprising a plurality of channels and a plurality of sensor devices. Each channel in the plurality of channels comprises a single opening at a first end of the channel and a...
Results 326–350 of 1,914