Patent • #9,472,689. An apparatus that includes a varactor element and an integrated micro-discharge source is disclosed herein. In a general embodiment, the apparatus includes at least one np junction and at least one voltage source that is configured to apply voltage across the np junction. The apparatus further includes an aperture...
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Variable bandwidth filter
Patent • #10,267,896. A variable bandwidth filter is described herein, wherein a bandwidth of a passband of the variable bandwidth filter is dynamically tunable. The variable bandwidth tuner is implemented on a CMOS chip, and acts to filter analog signals. The variable bandwidth filter comprises a plurality of finite impulse response (FIR)...
Variable Flow Exhaust Ventilation Cap for Local Exhaust Systems
Featured Opportunity • SummaryLocal Exhaust Ventilations (LEV) are vital engineering control systems used to prevent exposure to harmful airborne contaminants in the workplace. When fumes are produced, LEV systems produce enough suction to remove them, however, Current LEV systems function at constant rates, providing the same amount of suction at all times. As...
Variable focal length deformable mirror
Patent • #7,229,178. A variable focal length deformable mirror has an inner ring and an outer ring that simply support and push axially on opposite sides of a mirror plate. The resulting variable clamping force deforms the mirror plate to provide a parabolic mirror shape. The rings are parallel planar sections of...
Variable rate compliance modules, assemblies and tools for suppression of drilling vibrations
Patent • #10,407,998. A suppression module, a suppression assembly, and a drilling tool are disclosed. The suppression module includes a spindle having a first end and a second end, an ear plate slideably disposed between the first end and the second end, a spring positioned between the ear plate and the first...
Variable-pulse-shape pulsed-power accelerator
Patent • #9,974,155. A variable-pulse-shape pulsed-power accelerator is driven by a large number of independent LC drive circuits. Each LC circuit drives one or more coaxial transmission lines that deliver the circuit's output power to several water-insulated radial transmission lines that are connected in parallel at small radius by a water-insulated post-hole...
VCSEL fault location apparatus and method
Patent • #7,218,388. An apparatus for locating a fault within an optical fiber is disclosed. The apparatus, which can be formed as a part of a fiber-optic transmitter or as a stand-alone instrument, utilizes a vertical-cavity surface-emitting laser (VCSEL) to generate a test pulse of light which is coupled into an optical...
Vector measurements using a pulsed, optically pumped atomic magnetometer
Patent • #11841404. An atomic magnetometer, and a method for using same is disclosed. The method for measuring an ambient magnetic field uses an atomic magnetometer that has a probe light beam with a probe axis that probes a polarization vector of an atomic population confined within a vapor cell. The method...
Vehicle barrier with access delay
Patent • #8,210,767. An access delay vehicle barrier for stopping unauthorized entry into secure areas by a vehicle ramming attack includes access delay features for preventing and/or delaying an adversary from defeating or compromising the barrier. A horizontally deployed barrier member can include an exterior steel casing, an interior steel reinforcing member...
Vehicle barrier with access delay
Patent • #8,523,478. An access delay vehicle barrier for stopping unauthorized entry into secure areas by a vehicle ramming attack includes access delay features for preventing and/or delaying an adversary from defeating or compromising the barrier. A horizontally deployed barrier member can include an exterior steel casing, an interior steel reinforcing member...
Vehicle track detection in synthetic aperture radar imagery
Patent • #10,467,474. The various technologies presented herein relate to detecting one or more vehicle tracks in radar imagery. A CCD image can be generated from a first SAR image and a second SAR image captured for a common scene, wherein the second SAR image may include a vehicle track that is...
Vehicle track identification in synthetic aperture radar images
Patent • #10,032,077. Various technologies pertaining to identification of vehicle tracks in synthetic aperture radar coherent change detection image data are described herein. Coherent change detection images are analyzed in a parameter space using Radon transforms. Peaks of the Radon transforms correspond to features of interest, including vehicle tracks, which are identified...
Vertical Cavity Surface Emitting Lasers (VCSELs)
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Vertical III-nitride thin-film power diode
Patent • #9,595,616. A vertical III-nitride thin-film power diode can hold off high voltages (kV's) when operated under reverse bias. The III-nitride device layers can be grown on a wider bandgap template layer and growth substrate, which can be removed by laser lift-off of the epitaxial device layers grown thereon.
Vertically integrated optoelectronics package for MEMS devices
Patent • #10,139,564. The present application relates to vertically integrated assemblies including a MEMS-based optomechanical architecture. In some embodiments, the assembly includes a MEMS/optoelectronic module, an emitter module, and a detector module, where these modules are vertically integrated. Methods of fabricating such assemblies are also described herein.
Vertically-tapered optical waveguide and optical spot transformer formed therefrom
Patent • #6,768,855. An optical waveguide is disclosed in which a section of the waveguide core is vertically tapered during formation by spin coating by controlling the width of an underlying mesa structure. The optical waveguide can be formed from spin-coatable materials such as polymers, sol-gels and spin-on glasses. The vertically-tapered waveguide...
Vesicle-based method for collecting, manipulating, and chemically processing trace macromolecular species
Patent • #7,776,357. Disclosed is an apparatus and method for inserting one or several chemical or biological species into phospholipid containers that are controlled within a microfluidic network, wherein individual containers are tracked and manipulated by electric fields and wherein the contained species may be chemically processed.
Via configuration for wafer-to-wafer interconnection
Patent • #10,224,312. A modification to the standard layout of vias used for vertically-stacked wafer bonding is proposed which has been found to improve the interconnect overlay while avoiding the dishing problems associated with the planarization processes used in the creation of conductive posts within the vias. In particular, the pitch, i.e....
Vibration damping system
Patent • #8,317,173. A vibration damping system includes a laminated body (3) formed by alternately laminating rigid hard plates (4) and viscoelastic soft plates (5), and pair of shoe plates (1, 2) at both ends in the laminating direction of the laminated body (3), to form a vibration damping body (6). The...
Vibration isolation for centrifuge testbeds
Patent • #11612899. A method for isolating vibrations for centrifuge testing devices is provided. The method comprises coupling a test payload platform to a number of piezoelectric actuators and coupling the piezoelectric actuators to a reaction mass coupled to a centrifuge arm. A layer of vibration-absorbing material is sandwiched between the reaction...
Vibrational Energy Converters
Featured Opportunity • Summary Inexhaustible, miniature electrical power supplies offer the means to power battery-free microelectronic systems, or at a minimum provide a recharging capability to reduce battery size and extend their lifetimes. In particular, the unattended operation of remote microelectronic sensors and communication systems stand to benefit from inexhaustible miniature power technologies....
Vicinal light inspection of translucent materials
Patent • #7,650,028. The present invention includes methods and apparatus for inspecting vicinally illuminated non-patterned areas of translucent materials. An initial image of the material is received. A second image is received following a relative translation between the material being inspected and a device generating the images. Each vicinally illuminated image includes...
ViralFx
Featured Opportunity • ViralFx is an integrated approach to the diagnosis and treatment of SARS-CoV-2 that is accurate, rapid, repeatable, and easily deployed In pandemic scenarios, the capacity to complete laboratory diagnostic tests can be overwhelmed due to the need for specialized equipment and highly trained personnel to perform the complex workflows for...
Visible light laser voltage probing on thinned substrates
Patent • #9,599,667. The various technologies presented herein relate to utilizing visible light in conjunction with a thinned structure to enable characterization of operation of one or more features included in an integrated circuit (IC). Short wavelength illumination (e.g., visible light) is applied to thinned samples (e.g., ultra-thinned samples) to achieve a...
Vitreous carbon mask substrate for X-ray lithography
Patent • #7,608,367. The present invention is directed to the use of vitreous carbon as a substrate material for providing masks for X-ray lithography. The new substrate also enables a small thickness of the mask absorber used to pattern the resist, and this enables improved mask accuracy. An alternative embodiment comprised the...
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