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The Charles Stark Draper Laboratory Inc patents


Recent patent applications related to The Charles Stark Draper Laboratory Inc. The Charles Stark Draper Laboratory Inc is listed as an Agent/Assignee. Note: The Charles Stark Draper Laboratory Inc may have other listings under different names/spellings. We're not affiliated with The Charles Stark Draper Laboratory Inc, we're just tracking patents.

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Methodology for automatic multilingual speech recognition

A method and device are provided for multilingual speech recognition. In one example, a speech recognition method includes receiving a multilingual input speech signal, extracting a first phoneme sequence from the multilingual input speech signal, determining a first language likelihood score indicating a likelihood that the first phoneme sequence is identified in a first language dictionary, determining a second language likelihood score indicating a likelihood that the first phoneme sequence is identified in a second language dictionary, generating a query result responsive to the first and second language likelihood scores, and outputting the query result.. ... The Charles Stark Draper Laboratory Inc

The material stack of the present disclosure can be used for fabricating optical waveguides that are thin and flexible, and that can bend light around small turns. The stack of materials can include a polymer core and a cladding, which together can create a large difference in refractive index. ... The Charles Stark Draper Laboratory Inc

Compliant optrodes for monitoring and stimulating biological tissue with patterned light

This disclosure provides a device that can include a first compliant optrode. The first compliant optrode can include a stack of flexible waveguide materials providing a first optical interface and configured to be introduced into a tissue sample. ... The Charles Stark Draper Laboratory Inc

Selective cell destruction through electromagnetic resonance

Methods and devices for selectively destroying a cell or population of cells in cell cultures, fluids, blood or in the tissue or organs of a subject using electromagnetic resonance by targeting one, or more, specific protein(s) and/or nucleic acid(s) within the cell or cell population are described.. . ... The Charles Stark Draper Laboratory Inc

Camera-based heading-hold navigation

A visual navigation system includes a compass configured to orient a user in a heading direction, an image sensor configured to capture a series of successive navigation images in the heading direction, one or more of the navigation images having at least two reference markers, data storage memory configured to store the series of successive navigation images, a navigation processor configured to identify at least one principal marker and at least one ancillary marker from the at least two reference markers, the principal marker positioned within a principal angle and the ancillary marker positioned within an ancillary angle, which is greater than the principal angle, and to determine heading direction information based on a position of the at least one principal marker and/or the at least one ancillary marker in the successive navigation images, and a user interface configured to provide the heading direction information to the user.. . ... The Charles Stark Draper Laboratory Inc

Photonic imaging array

A multi-beam optical phased array on a single planar waveguide layer or a small number of planar waveguide layers enables building an optical sensor that performs much like a significantly larger telescope. Imaging systems use planar waveguides created using micro-lithographic techniques. ... The Charles Stark Draper Laboratory Inc

Method and apparatus for using universal cavity wafer in wafer level packaging

An electronics module assembly is described herein that packages dies using a universal cavity wafer that is independent of electronics module design. In one embodiment, the electronics module assembly can include a cavity wafer having a single frontside cavity that extends over a majority of a frontside surface area of the cavity wafer and a plurality of fillports. ... The Charles Stark Draper Laboratory Inc

Membrane-integrated microfluid device for imaging cells

The invention provides microfluidic devices, methods for imaging cells, and methods for preparing such microfluidic devices. The microfluidic devices are contemplated to provide advantages for use in imaging of cells and subcellular compartments in an environment that mimics in vivo conditions. ... The Charles Stark Draper Laboratory Inc

System for co-adaptive human-computer interaction

In an embodiment, a method includes associating a user interaction with a respective command of a library of commands of an application run by a processor. The user interactions are inputted to a graphical user interface (gui) presented by the application to a user, for example, at a display. ... The Charles Stark Draper Laboratory Inc

Wiring system

A method for attaching a prefabricated miniature coaxial wire to a first electrical connection point, the prefabricated miniature coaxial wire having an electrically conductive core disposed within an electrical insulation layer disposed within an electrically conductive shield layer, includes attaching an exposed portion of the electrically conductive core at a distal end of the prefabricated miniature coaxial wire to the first electrical connection point, thereby establishing electrical conductivity between the electrically conductive core and the first electrical connection point, depositing a layer of electrically insulating material onto the exposed portion of the electrically conductive core such that the exposed portion of the electrically conductive core and the first electrical connection point is encased in the layer of electrically insulating material, and connecting the electrically conductive shield layer to a second electrical connection point using a connector formed from an electrically conductive material.. . ... The Charles Stark Draper Laboratory Inc

Atom and ion sources and sinks, and methods of fabricating the same

A bi-directional device for generating or absorbing atoms or ions. In some embodiments, the device comprises a solid-phase ion-conducting material, a first electrode positioned on a first surface of the solid-phase ion-conducting material, and a second electrode positioned on a second surface of the solid-phase ion-conducting material. ... The Charles Stark Draper Laboratory Inc

Biophysical sensing systems and methods using non-contact electric field detectors

Aspects are generally directed to systems and methods that integrate contactless electric field detectors to measure biophysical signals generated by a body. In one example, a biophysical sensing system includes a sensing assembly including an array of contactless electric field detectors, each of the contactless electric field detectors being configured to sense a corresponding component of an electric field generated by a body, a control system to receive sensor data indicative of the components of the electric field sensed by each of the contactless electric field detectors, the control system being configured to generate an estimate of the electric field based on the sensor data, and a feedback system coupled to at least the control system, the feedback system including at least one feedback interface, the feedback system being configured to operate the feedback interface to provide feedback based on the estimate of the electric field.. ... The Charles Stark Draper Laboratory Inc

Silicon carbide microelectromechanical structure, device, and method

Electromechanical device structures are provided, as well as methods for forming them. The device structures incorporate at least a first and second substrate separated by an interface material layer, where the first substrate comprises an anchor material structure and at least one suspended material structure, optionally a spring material structure, and optionally an electrostatic sense electrode. ... The Charles Stark Draper Laboratory Inc

Star tracker-aided airborne or spacecraft terrestrial landmark navigation system

Methods and apparatus automatically determine a location, such as of an aircraft or spacecraft, by matching images of terrain below the craft, as captured by a camera, radar, etc. In the craft, with known or predicted terrain landmark data stored in an electronic data store. ... The Charles Stark Draper Laboratory Inc

03/15/18 / #20180077663

Wireless network for sensor array

A linear wireless sensor network includes network nodes having monotonically varying network node identifiers along each branch of the network. The network identifiers enable the nodes to forward network packets without use of routing tables. ... The Charles Stark Draper Laboratory Inc

03/15/18 / #20180076815

Voting circuits and methods for trusted fault tolerance of a system of untrusted subsystems

Circuits and methods for determining a majority vote from a plurality of inputs. An example circuit includes a voting input stage, a transfer stage, and an accumulating stage. ... The Charles Stark Draper Laboratory Inc

03/15/18 / #20180074888

Methods and systems for achieving trusted fault tolerance of a system of untrusted subsystems

Systems and methods for trusted integration of untrusted components. An example system includes at least three electrical components and voting (consensus) circuitry. ... The Charles Stark Draper Laboratory Inc

03/15/18 / #20180074154

Position determination by observing a celestial object transit the sun or moon

A navigation system determines a position by referring to artificial or natural satellites or other space objects during daylight or when the objects are in a planet's shadow. A telescope and image sensor observe and image shadows of the objects as the objects transit the sun or a sunlit surface of a planet or moon, thereby solving problems related to the two key times during which traditional skymark navigation is difficult or impossible.. ... The Charles Stark Draper Laboratory Inc

03/08/18 / #20180066943

Fused sensor ensemble for navigation and calibration process therefor

An ensemble of motion sensors is tested under known conditions to automatically ascertain instrument biases, which are modeled as autoregressive-moving-average (arma) processes in order to construct a kalman filter. The calibration includes motion profiles, temperature profiles and vibration profiles that are operationally significant, i.e., designed by means of covariance analysis or other means to maximize, or at least improve, the observability of the calibration model's structure and coefficients relevant to the prospective application of each sensor.. ... The Charles Stark Draper Laboratory Inc

03/08/18 / #20180066219

Bioprocessing system

Systems and methods are disclosed herein for use in transducing, activating, and otherwise treating cells. Cells are introduced into an inner layer of a multi-layered stack that defines at least one flow chamber and a plurality of cell entrainment regions. ... The Charles Stark Draper Laboratory Inc

02/22/18 / #20180049728

Instrumented biopsy probe

A system for collecting a sample from a tissue includes a medical instrument having a sample collection region. One or more sensors is configured to detect one or more properties of a sample, and is configured to output at least one measured value representative of the one or more properties of the sample. ... The Charles Stark Draper Laboratory Inc

02/15/18 / #20180045540

All-fiber phase-modulated fiber optic sensor and phased array

A fiber optical sensor and methods for sensing a physical quantity such as rotation using the same. The sensor has an optical fiber supporting propagation of light that is configured as an interferometer. ... The Charles Stark Draper Laboratory Inc

02/08/18 / #20180038833

Method for determining defect depth in ferromagnetic structures based on magnetic flux leakage direction

The system and method involve a permanent magnetization induction process for ferromagnetic structures, carried out to the saturation point to overwhelm the intrinsic magnetic fields in the structures. The permanent magnetization to overwhelm the intrinsic magnetization eliminates the effect of intrinsic fields for subsequent measurements. ... The Charles Stark Draper Laboratory Inc

02/01/18 / #20180033670

Method for realizing ultra-thin sensors and electronics with enhanced fragility

A method of fabricating ultra-thin semiconductor devices includes forming an array of semiconductor dielets mechanically suspended on a frame with at least one tether connecting each semiconductor dielet of the array of semiconductor dielets to the frame.. . ... The Charles Stark Draper Laboratory Inc

02/01/18 / #20180028145

Electronic catheter stethoscope

An electronic catheter stethoscope measures and analyzes acoustic fields and dynamic pressure variations in the gaseous or liquid fluid inside a conventional medical catheter that is positioned in a patient's urologic, digestive, reproductive, cardiovascular, neurological or pulmonary system. Measurement transducers are installed in a housing connectable to multiple preselected medical catheters. ... The Charles Stark Draper Laboratory Inc

01/11/18 / #20180012786

Method for realizing ultra-thin sensors and electronics with enhanced fragililty

A method of fabricating ultra-thin semiconductor devices includes forming an array of semiconductor dielets mechanically suspended on a frame with at least one tether connecting each semiconductor dielet of the array of semiconductor dielets to the frame.. . ... The Charles Stark Draper Laboratory Inc

01/11/18 / #20180011708

Techniques for metadata processing

Techniques are described for metadata processing that can be used to encode an arbitrary number of security policies for code running on a processor. Metadata may be added to every word in the system and a metadata processing unit may be used that works in parallel with data flow to enforce an arbitrary set of policies. ... The Charles Stark Draper Laboratory Inc

01/04/18 / #20180003777

Calibration and monitoring for 3-axis magnetometer arrays of arbitrary geometry

A system and method for calibrating rigid and non-rigid arrays of 3-axis magnetometers as disclosed. Such arrays might be used to analyze structures containing ferromagnetic material. ... The Charles Stark Draper Laboratory Inc

12/28/17 / #20170372808

Cold atom interferometry

Improvements to atom interferometers. An improved atom interferometer has a single polarization-preserving fiber, coupled for propagation of beams of two raman frequencies, and a parallel displacement beamsplitter for separating the laser beams into respective free-space-propagating parallel beams traversing at least one ensemble of atoms. ... The Charles Stark Draper Laboratory Inc

12/28/17 / #20170370840

Separated parallel beam generation for atom interferometry

An atomic interferometer and methods for measuring phase shifts in interference fringes using the same. The atomic interferometer has a laser beam traversing an ensemble of atoms along a first path and an optical components train with at least one alignment-insensitive beam routing element configured to reflect the laser beam along a second path that is anti-parallel with respect to the first laser beam path. ... The Charles Stark Draper Laboratory Inc

12/28/17 / #20170370723

Electro-optical phase modulator having stitched-in vacuum stable waveguide with minimized conductivity contrast

A y-branch dual electro-optical phase modulator (ybdpm) has a stitched-in zinc oxide diffused waveguide. It is more vacuum stable and has higher resistance to photorefractive damage than currently used ti-diffused waveguides. ... The Charles Stark Draper Laboratory Inc

12/28/17 / #20170369307

Reconstructed wafer based devices with embedded environmental sensors and process for making same

A one or multi-die module comprises multiple dies. The module includes at least one die with a sensor having a sensing region, an encapsulation layer covering top sides of the multiple dies, and a redistribution layer covering bottom sides of the multiple dies except for the sensing region. ... The Charles Stark Draper Laboratory Inc

12/28/17 / #20170367418

Polymer microwedges and methods of manufacturing same

A mold for casting a micro-scale structure includes an upper surface including a first cavity having a first depth. A negative pattern for an array of micro-scale structures is defined in a surface of the first cavity. ... The Charles Stark Draper Laboratory Inc

12/21/17 / #20170361508

Polymer microwedges and methods of manufacturing same

A mold for casting a micro-scale dry adhesive structure includes an upper surface including a first cavity having a first depth, a negative pattern for an array of micro-scale structures defined in a surface of the first cavity, and at least one second cavity having a second depth defined in the cavity outside of the negative pattern for the array of micro-scale structures, the at least one second cavity defining a negative pattern for a standoff of the micro-scale dry adhesive structure.. . ... The Charles Stark Draper Laboratory Inc

12/14/17 / #20170357142

Wide angle steering with phase array with wide-element spacing and lens array

An optical beam steering system comprises an array of optical elements for generating or detecting optical signals, a coarse beam steering system for steering a beam between grating lobes, and a fine beam steering system for steering the beam within a grating lobe imposed by the coarse beam steering system. It can be applied the problem of providing an optical phased array system that has both a wide range of steering angles and good angular resolution with a reasonable number of array elements. ... The Charles Stark Draper Laboratory Inc

12/14/17 / #20170357055

Reduced pupil integrated optical system

An imaging system comprises a matched pathlength combining waveguide array including input optical couplers for receiving light, combining waveguides for combining the light received from different input optical couplers and relaying the light to output optical couplers. A lens system is also provided for imaging the light from the output optical couplers. ... The Charles Stark Draper Laboratory Inc

12/14/17 / #20170354847

Hybrid adhesion system and method

A hybrid adhesion system includes an adhesion head including at least one suction cup and a handle and a vacuum generator mechanically coupled to the adhesion head. The vacuum generator includes at least one pneumatic cylinder having an internal volume in fluid communication with the at least one suction cup and a piston having a piston rod mechanically coupled to a manual actuator.. ... The Charles Stark Draper Laboratory Inc

12/07/17 / #20170349912

Systems and methods for cell transduction

Systems and methods are disclosed herein for use in transducing, activating, and otherwise treating cells. Cells are introduced into an inner layer of a multi-layered stack that defines at least one flow chamber and a plurality of cell entrainment regions. ... The Charles Stark Draper Laboratory Inc

11/30/17 / #20170346565

Optical communications system phase-controlled transmitter and phase-conjugate mirror receiver

An optical communications system comprises a first node comprising a phased array transmitter for generating an optical beam and a receiver, and a second node comprising a phase conjugate mirror for returning the optical beam to be detected by the receiver of the first node. The phased array transmitters allow for electronic steering of the beams in a way that is much faster and with a potentially smaller physical footprint than the mechanical systems. ... The Charles Stark Draper Laboratory Inc

11/30/17 / #20170340795

Hemotransfiltration hollow fiber device

The present disclosure describes a device and method to clear solutes from a patient's blood while maintaining fluid balance. In some implementations, the device and method is used to assist the filtration functions of a patient's liver or kidney. ... The Charles Stark Draper Laboratory Inc

11/23/17 / #20170333700

Method of manufacturing an implantable neural electrode interface platform

The present disclosure discusses a method of manufacturing an implantable neural electrode. The method includes cutting a metal layer to form a plurality of electrode sites, contact pads and metal traces connecting the electrode sites to the contact pads. ... The Charles Stark Draper Laboratory Inc

10/26/17 / #20170310346

Transceiver system to adapt to antenna de-tuning

A method of adapting an antenna to a transceiver system having a receiver subsystem and a transmitter subsystem comprises using an automatic tuning system to tune the antenna with respect to the receiver subsystem. The tuning results in an optimal receive signal at the receiver subsystem in response to rf energy radiated to the antenna. ... The Charles Stark Draper Laboratory Inc

10/26/17 / #20170310008

Low-loss compact transmit impedance match tuning technique

An adaptive impedance matching network to implement an impedance match between an rf power device and an antenna comprises a matching network having at least one tunable component, a current sensor providing a current value corresponding to the supply current associated with the rf power device, a power sensor configured to provide an rf power sensor value monotonically related to power delivered to the antenna, and a tuner to provide a tuning signal to the matching network as a function of the current and rf power values. The tuner may adjust the tuning signal so that the rf power sensor value is at least as large as for other settings of the tuning signal, while maintaining the supply current at a predetermined amount corresponding to an amount of supply current occurring when the rf power device is driving a load that produces the desired rf output power and amplifier efficiency.. ... The Charles Stark Draper Laboratory Inc

10/05/17 / #20170283779

Bacteriophage engineering methods

The present disclosure provides methods and kits for generating recombinant bacteriophage genomes.. . ... The Charles Stark Draper Laboratory Inc

09/21/17 / #20170271688

Method for preventing high temperature self discharge in primary battery

A discharge prevention system for a primary battery comprises an energy harvesting module that produces energy from an environment and a control circuit for applying electrical current to the primary battery from the energy harvesting module to prevent or reduce self-discharge. This system will prevent or reduce rapid self-discharge at high temperatures in lithium-based primary batteries, for example. ... The Charles Stark Draper Laboratory Inc

09/07/17 / #20170252702

Compact hydraulic manifold structure for shear sensitive fluids

An compact hydraulic manifold for transporting shear sensitive fluids is provided. A channel network can include a trunk and branch architecture coupled to a bifurcation architecture. ... The Charles Stark Draper Laboratory Inc

08/31/17 / #20170249572

Equipped-human reference architecture

In an embodiment, a method includes loading, from a first database, a representation of an equipped-human reference architecture (ehra) model that is based on a human-equipment-task framework. The method further includes, based on indications of polymorphic attributes of at least one of a human, a task, an equipment, and an operational environment as defined by the ehra model, selected by a user, loading a plurality of properties associated with the received indications from a second database. ... The Charles Stark Draper Laboratory Inc

08/31/17 / #20170245817

Systems and methods for imaging

A method of imaging an organism includes introducing a composite nanoparticle into a circulating fluid of an organism to form a circulating fluid mixture in the organism is provided. The composite nanoparticle comprises a core comprising at least one of a contrast agent and a magnetic material, and at least one layer of biocompatible material surrounding the core. ... The Charles Stark Draper Laboratory Inc

08/24/17 / #20170241991

System and method for in vitro blood vessel modeling

The present invention provides an in vitro blood vessel model for investigation of drug induced vascular injury and other vascular pathologies. The in vitro blood vessel model provides two channels separated by a porous membrane that is coated on one side by an endothelial cell layer and is coated on the other side by a smooth muscle cell layer, wherein said model is susceptible to the extravasation of red blood cells across said porous membrane due to drug induced vascular injury.. ... The Charles Stark Draper Laboratory Inc

08/24/17 / #20170240773

Method of assembling nanoscale and microscale objects in two- and three-dimensional structures

A method of assembly of micro-scale objects includes forming a pattern of a first functional moiety on a surface of a substrate, contacting the surface of the substrate with a first liquid suspension including first micro-scale feedstock elements functionalized with a second functional moiety, complimentary to the first functional moiety, on first portions of the first micro-scale feedstock elements and functionalized with a third functional moiety on second portions of the first micro-scale feedstock elements, aligning the first portions of the first micro-scale feedstock elements with the surface of the substrate, and facilitating bonding the second functional moieties to the first functional moieties to form a first microstructure pattern of the first micro-scale feedstock elements on the surface of the substrate.. . ... The Charles Stark Draper Laboratory Inc

08/24/17 / #20170239485

Integrated power delivery, communication, and health monitoring system for implantable electrode

The present disclosure describes systems and methods for improving the safety of bio-implantable electronics systems used for recording and electrical stimulation applications. The present disclosure discusses a communication protocol that provides dc balanced, bi-directional communication between a controller hub and satellite electrical stimulation and recording devices distributed throughout the patient's body. ... The Charles Stark Draper Laboratory Inc

08/24/17 / #20170238828

Apparatus and method for recording neural signals in the presence of artifacts

Systems and methods are disclosed herein for recording electrical signals in the presence of artifacts. The system and methods can employ multiple techniques for attenuating large, unwanted artifacts while preserving lower amplitude desirable signals. ... The Charles Stark Draper Laboratory Inc

08/10/17 / #20170227405

Thermal event sensor

A thermal event sensor includes a charge storage component formed on a substrate, configured to hold an initial charge, and configured to lose charge at a rate dependent upon temperature. A sensing interface is coupled to the charge storage component and a readout mechanism is coupled to the sensing interface. ... The Charles Stark Draper Laboratory Inc

08/03/17 / #20170216607

Neural implant for microstimulation

This disclosure provides systems and methods for delivering a neural stimulation pulse. A neural implant device can include an energy harvesting circuit configured to receive an input signal and generate an electrical signal based on the received input signal. ... The Charles Stark Draper Laboratory Inc

08/03/17 / #20170216606

Neural implant for microstimulation

This disclosure provides systems and methods for delivering a neural stimulation pulse. A neural implant device can include an energy harvesting circuit configured to receive an input signal and generate an electrical signal based on the received input signal. ... The Charles Stark Draper Laboratory Inc

08/03/17 / #20170216022

Drug-eluting stapes prosthesis

A medical implant device includes a prosthesis adapted to replace at least a portion of a bone. The prosthesis includes a drug-eluting polymer adapted to deliver a drug to at least a portion of an area surrounding the prosthesis.. ... The Charles Stark Draper Laboratory Inc

07/27/17 / #20170210479

Trimming device for controlling the glide slope and descent speed of a parafoil

A parafoil system having an adjustable trim angle during flight to control glide slope and descent speed of a parafoil is provided. The parafoil system may include a pulley cluster comprising first and second variable trim pulleys, each having a different diameter. ... The Charles Stark Draper Laboratory Inc

07/27/17 / #20170209100

Systems and methods for reducing noise in a neural recording device

This disclosure provides systems and methods for reducing noise in neural recording device. A neural recording system can include a radiofrequency (rf) transmitter configured to transmit an rf signal. ... The Charles Stark Draper Laboratory Inc

07/06/17 / #20170192425

System and method for assisted extravehicular activity self-return

A system and method for assisted eva self-return is provided herein. The system estimates a crewmember's navigation state relative to a fixed location, for example on an accompanying orbiting spacecraft, and computes a guidance trajectory for returning the crewmember to that fixed location. ... The Charles Stark Draper Laboratory Inc

06/29/17 / #20170184401

Navigation system with monocentric lens and curved focal plane sensor

A navigation system includes a monocentric lens and one or more curved image sensor arrays disposed parallel and spaced apart from the lens to capture respective portions, not all, of the field of view of the lens.. . ... The Charles Stark Draper Laboratory Inc

06/22/17 / #20170177368

Techniques for metadata processing

Techniques are described for metadata processing that can be used to encode an arbitrary number of security policies for code running on a processor. Metadata may be added to every word in the system and a metadata processing unit may be used that works in parallel with data flow to enforce an arbitrary set of policies. ... The Charles Stark Draper Laboratory Inc

06/22/17 / #20170177367

Techniques for metadata processing

Techniques are described for metadata processing that can be used to encode an arbitrary number of security policies for code running on a processor. Metadata may be added to every word in the system and a metadata processing unit may be used that works in parallel with data flow to enforce an arbitrary set of policies. ... The Charles Stark Draper Laboratory Inc

06/15/17 / #20170165474

Closely spaced array of penetrating electrodes

The present disclosure describes a closely spaced array of penetrating electrodes. In some implementations, the electrodes of the array are spaced less than 50 μm apart. ... The Charles Stark Draper Laboratory Inc

06/01/17 / #20170154867

Method for bonding a hermetic module to an electrode array

A method for bonding a hermetic module to an electrode array including the steps of: providing the electrode array having a flexible substrate with a top surface and a bottom surface and including a plurality of pads in the top surface of the substrate; attaching the hermetic module to the bottom surface of the electrode array, the hermetic module having a plurality of bond-pads wherein each bond-pad is adjacent to the bottom surface of the electrode array and aligns with a respective pad; drill holes through each pad to the corresponding bond-pad; filling each hole with biocompatible conductive ink; forming a rivet on the biocompatible conductive ink over each pad; and overmolding the electrode array with a moisture barrier material.. . ... The Charles Stark Draper Laboratory Inc

05/18/17 / #20170136168

Extracorporeal clearance of organophosphates from blood on an acoustic separation device

Systems, methods, and compositions for removing organophosphate toxins from blood are disclosed herein. The compositions include a lipid-based capture particle that displays bche that binds to the toxin. ... The Charles Stark Draper Laboratory Inc

05/04/17 / #20170126263

Zero power radio frequency receiver

A zero power radio frequency (rf) activated wake up device is provided. The device is based on a high-q mems demodulator that filters an amplitude-modulated rf tone of interest from the entire spectrum while producing a much higher voltage signal suitable to trigger a high-q mems resonant switch tuned to the modulation frequency of the rf tone.. ... The Charles Stark Draper Laboratory Inc

05/04/17 / #20170119250

Portable hardware fixture for fundoscopy

A fundoscopy system comprises a fixture supporting optics configured to be mounted to a surface of a smartphone and align the optics with a pupil of a camera of the smartphone and to align a light guide with an illumination source of the smartphone. The light guide is configured to direct light from the illumination source into an eye of a subject disposed in front of the fixture. ... The Charles Stark Draper Laboratory Inc

05/04/17 / #20170119243

System and method for classifying and quantifying age-related macular degeneration

The present disclosure describes a system and method to classify optical coherence tomography (oct) images. The present system can classify oct images without first segmenting the retina tissue. ... The Charles Stark Draper Laboratory Inc

04/27/17 / #20170117235

Method and apparatus for a destroy on-demand electrical device

A destroy on-demand electrical device includes a substrate layer formed using a soluble material (e.g., a germanium oxide), a semi-conductor layer formed from a material that can become soluble upon further processing (e.g., germanium) and conductive elements, formed from a metallic material such as copper. The device is coupled with one or more disintegration sources that contain disintegration agents (e.g., hydrogen peroxide) that can promote disintegration of the device. ... The Charles Stark Draper Laboratory Inc

04/20/17 / #20170109883

System and method for the segmentation of optical coherence tomography slices

The present disclosure describes a system and method to segment optical coherence tomography (oct) images. The present system uses a hybrid method that employs both bayesian level sets (bls) and graph-based segmentation algorithms. ... The Charles Stark Draper Laboratory Inc

04/20/17 / #20170108469

System and method for characterizing ferromagnetic material

A system and method using magnetic sensing to non-intrusively and non-destructively characterize ferromagnetic material within infrastructure. The system includes sensors for measuring magnetic field gradients from a standoff distance adjacent to ferromagnetic material. ... The Charles Stark Draper Laboratory Inc

04/20/17 / #20170105616

System and method for the selection of optical coherence tomography slices

The present disclosure describes systems and methods to select fovea containing optical coherence tomography (oct) images. The systems and methods described herein receive a plurality of oct images. ... The Charles Stark Draper Laboratory Inc

04/13/17 / #20170100564

Seeping flow anti-clotting blood catheter

The device and methods described herein relate to a seeping flow catheter. The seeping flow catheter includes a porous material. ... The Charles Stark Draper Laboratory Inc

04/06/17 / #20170097443

Injection well identification using tracer particles

A system and method of injection well identification using tracer particles is disclosed. A collector-reader for analyzing magnetic particles in a fluid that is moving with respect to the collector-reader includes an array of magnets whose magnetization direction is varied so as to create regions of high magnetic field gradient in the fluid, a stopper configured to concentrate spatially the particles attracted to the array, and a reader including a source configured to excite the particles concentrated by the stopper and a detector configured to capture a particle excitation signature emitted by the magnetic particles. ... The Charles Stark Draper Laboratory Inc

04/06/17 / #20170097394

Magnetic field detector system

Aspects and embodiments are generally directed to magnetic field detector systems and methods. In one example, a magnetic field detector system includes a proof-mass including a magnetic dipole source, a plurality of supports, each individual support of the plurality supports being coupled to the proof-mass, a plurality of sensors, each individual sensor of the plurality of sensors positioned to measure a resonant frequency of a corresponding support of the plurality of supports, and a controller coupled to each individual sensor of the plurality of sensors, the controller configured to measure a characteristic of a magnetic field imparted on the proof-mass based on at least a first resonant frequency of the measured resonant frequencies.. ... The Charles Stark Draper Laboratory Inc

04/06/17 / #20170097382

Electric field detector system

Aspects and embodiments are generally directed to electric field detector systems and methods. In one example, an electric field detector system includes a proof-mass including a source of concentrated charge, a plurality of supports, each individual support of the plurality supports being coupled to the proof-mass, a plurality of sensors, each individual sensor of the plurality of sensors positioned to measure a resonant frequency of a corresponding support of the plurality of supports, and a controller coupled to each individual sensor of the plurality of sensors, the controller configured to measure a characteristic of an electric field imparted on the proof-mass based on at least a first resonant frequency of the measured resonant frequencies.. ... The Charles Stark Draper Laboratory Inc

03/30/17 / #20170091361

System and process for simulating the behavioral effects of timing violations between unrelated clocks

According to one aspect, embodiments of the invention provide a cdc simulation system comprising a timing analysis module configured to receive a circuit design, analyze the circuit design to identify at least one cdc, and generate a report including information related to the at least one cdc, a cdc simulation module configured to communicate with the timing analysis module and to receive the report from the timing analysis module, and a test bench module configured to communicate with the cdc simulation module, to receive the circuit design, and to operate a test bench code to simulate the operation of the circuit design, wherein the cdc simulation module is further configured to edit a top level of the test bench code, based on the received report, such that the test bench module is configured to identify timing violations in the circuit design due to the at least one cdc.. . ... The Charles Stark Draper Laboratory Inc

03/16/17 / #20170071566

Electronic catheter stethoscope

An electronic catheter stethoscope measures and analyzes acoustic fields and dynamic pressure variations in the gaseous or liquid fluid inside a conventional medical catheter that is positioned in a patient's urologic, digestive, reproductive, cardiovascular, neurological or pulmonary system. Measurement transducers are installed in a housing connectable to multiple preselected medical catheters. ... The Charles Stark Draper Laboratory Inc

03/02/17 / #20170058440

Directed assembly of braided, woven or twisted wire

Wires, such as microwires or nanowires are braided, woven or twisted by attaching an end piece to a first end of a plurality of wires, wherein the end piece has a response to an electromagnetic or fluidic work force different than that of the wire. The end pieces are manipulated relative to each other by selective application of electromagnetic or fluidic force that braids, weaves or twist the wires at the first end, while the second ends of each of the wires remain fixed relative to each other.. ... The Charles Stark Draper Laboratory Inc

02/09/17 / #20170035582

Array of microelectrodes for interfacing to neurons within fascicles

Methods and apparatus are disclosed for interfacing with nerve fibers, such as axons. Embodiments provide multiple micro-channels, into which individual fascicles of a nerve may be placed, one fascicle per micro-channel. ... The Charles Stark Draper Laboratory Inc








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