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Results 1351–1375 of 2,278

Monolithic MAX phase ternary alloys for sliding electrical contacts
Patent • #10,199,788. The present invention relates to monolithic structures for use as an electrical contact. In particular, these structures are formed from a laminate alloy, which in turn is composed of a M.sub.n+1AX.sub.n compound. Electrical contact assemblies and electrical components having such contacts are also described herein. In some example, such...

Monolithically integrated absolute frequency comb laser system
Patent • #9,391,420. Rather than down-convert optical frequencies, a QCL laser system directly generates a THz frequency comb in a compact monolithically integrated chip that can be locked to an absolute frequency without the need of a frequency-comb synthesizer. The monolithic, absolute frequency comb can provide a THz frequency reference and tool...

Monolithically Integrated Absolute Frequency Comb Laser System
Featured Opportunity • Laser combs are increasingly used to provide precision measurements. Typical frequency comb systems use non-linear elements, distinct from the laser gain media, to create a set of emission lines with equally spaced frequencies. Separate detectors and/or frequency mixing elements are needed to lock the comb and determine the absolute frequencies...

Monolithically integrated infrared transceiver
Patent • #10,020,634. A Schottky diode is monolithically integrated into the core of an infrared semiconductor laser (e.g., a quantum cascade laser) to create a heterodyned infrared transceiver. The internal mode field of the infrared semiconductor laser couples to an embedded Schottky diode and can mix the infrared fields to generate a...

Motion-based authentication for a gesture-based computing device
Patent • #8,929,546. A motion-based authentication method is operative in a mobile computing device having a display interface and that includes an accelerometer. Normally, the device software includes a locking mechanism that automatically locks the display interface after a configurable timeout. The authentication method operates to un-lock the display interface (and thus...

Moving bed reactor for solar thermochemical fuel production
Patent • #8,420,032. Reactors and methods for solar thermochemical reactions are disclosed. Embodiments of reactors include at least two distinct reactor chambers between which there is at least a pressure differential. In embodiments, reactive particles are exchanged between chambers during a reaction cycle to thermally reduce the particles at first conditions and...

Moving target defense for a serial communications system
Patent • #11,133,927. A moving target defense scheme for a serial communications system is disclosed herein. A bus controller generates and broadcasts a nonce to remote terminals over a bus. The bus controller and the remote terminals generate a randomized sequence based upon the nonce and a shared secret that is shared...

Multi-aperture optical system for high-resolution imaging
Patent • #10,120,195. Technologies pertaining to a multi-aperture optical imaging system are described herein. The multi-aperture optical system comprises an afocal optical telescope and a plurality of sub-apertures that receive light from the telescope. Each sub-aperture comprises a focusing optic that creates a full-field image onto an individual image sensor that outputs...

Multi-axis planar slide system
Patent • #6,463,664. An apparatus for positioning an item that provides two-dimensional, independent orthogonal motion of a platform in a X-Y plane. A pair of master and slave disks engages opposite sides of the platform. Rotational drivers are connected to master disks so the disks rotate eccentrically about axes of rotation. Opposing...

Multi-block sulfonated poly(phenylene) copolymer proton exchange membranes
Patent • #8,110,636. Improved multi-block sulfonated poly(phenylene) copolymer compositions, methods of making the same, and their use as proton exchange membranes (PEM) in hydrogen fuel cells, direct methanol fuel cells, in electrode casting solutions and electrodes. The multi-block architecture has defined, controllable hydrophobic and hydrophilic segments. These improved membranes have better ion...

Multi-dimensional cable shorting tool
Patent • #10,468,788. A device for rendering safe a detonator firing circuit by short circuiting multiple conductors in the circuit includes a base portion and cable piercing members. The base portion has a cylindrical block and apertures for retentively receiving the cable piercing members. The cable piercing member has a first end...

Multi-factor authentication
Patent • #8,868,923. Detection and deterrence of spoofing of user authentication may be achieved by including a cryptographic fingerprint unit within a hardware device for authenticating a user of the hardware device. The cryptographic fingerprint unit includes an internal physically unclonable function ("PUF") circuit disposed in or on the hardware device, which...

Multi-Functional Nanomaterials by Surfactant-Assisted Fabrication
Featured Opportunity • Due to current manufacturing methods, nanomaterials suffer from a lack of uniformity resulting in efficiency and reliability issues. Sandia National Laboratories developed an innovative crystallization method that produces well-defined multi-functional nanomaterials. Sandia’s nanomaterials are produced using a seeding and growing process within surfactantconfined nanostructures (micelles, emulsions, and mesophases). This process...

Multi-hypothesis moving object detection system
Patent • #10,032,285. A method and apparatus for analyzing a sequence of images. Signal-to-noise ratios are identified for potential tracks using a tree having hierarchies of nodes identifying potential positions for an object over a period of time and using the sequence of images. Each hierarchy in the hierarchies of nodes represents...

Multi-Layer Solid Lubricant Architecture for Hammer Drill Components
Featured Opportunity • Researchers at Sandia National Laboratories have developed a coating architecture to replace conventional fluid lubricants with a multi-layer solid lubricant for use in drilling components deployed in extreme conditions. Down-the-hole (DTH) hammer drilling, used in mining, construction, and water well drilling, is arguably the most reliable and successful method for...

Multi-line triggering and interdigitated electrode structure for photoconductive semiconductor switches
Patent • #7,173,295. An improved photoconductive semiconductor switch comprises multiple-line optical triggering of multiple, high-current parallel filaments between the switch electrodes. The switch can also have a multi-gap, interdigitated electrode for the generation of additional parallel filaments. Multi-line triggering can increase the switch lifetime at high currents by increasing the number of...

Multi-resonant feedback control of a single degree-of-freedom wave energy converter
Patent • #10,423,126. A multi-resonant wide band controller decomposes the wave energy converter control problem into sub-problems; an independent single-frequency controller is used for each sub-problem. Thus, each sub-problem controller can be optimized independently. The feedback control enables actual time-domain realization of multi-frequency complex conjugate control. The feedback strategy requires only measurements...

Multi-resonant feedback control of multiple degree-of-freedom wave energy converters
Patent • #10,488,828. The control of heave pitch, and surge WECs is described in this disclosure. Depending on the buoy shape, some of these modes could be coupled in the dynamic model. The proposed multi-resonant control strategy finds the optimal control based on the complex conjugate criteria. This feedback control only requires...

Multi-stage falling particle receivers
Patent • #10,914,493. The present disclosure is directed to multi-stage falling particle receivers and methods of falling particle heating. As the particles fall through the receiver, the particles are periodically collected and released by flow retarding devices. The periodic catch-and-release of the particles falling through the receiver reduces particle flow dispersion, increases...

Multi-step contrast sensitivity gauge
Patent • #8,858,076. An X-ray contrast sensitivity gauge is described herein. The contrast sensitivity gauge comprises a plurality of steps of varying thicknesses. Each step in the gauge includes a plurality of recesses of differing depths, wherein the depths are a function of the thickness of their respective step. An X-ray image...

Multiaxis sensing using metal organic frameworks
Patent • #9,546,887. A sensor device including a sensor substrate; and a thin film comprising a porous metal organic framework (MOF) on the substrate that presents more than one transduction mechanism when exposed to an analyte. A method including exposing a porous metal organic framework (MOF) on a substrate to an analyte;...
Results 1351–1375 of 2,278