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215 results about "Rotational component" patented technology
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Rotational components of strong ground motions refer to changes of the natural slope of the ground surface due to the propagation of seismic waves. Earthquakes induce three translational (two horizontal and one vertical) and three rotational (two rocking and one torsional) motions on the ground surface.
Friction transmission with axial loading and a radiolucent surgical needle driver
InactiveUS6400979B1The process is simple and effectiveOvercome disadvantagesSurgeryVaccination/ovulation diagnosticsRotational axisRotational component
A method for performing radiological-image-guided percutaneous surgery with a system which includes a radiological image generating device for generating an image of a target anatomy of a patient, and a needle insertion mechanism disposed adjacent the image generating device and having a needle adapted to be inserted into the patient. The method includes the steps of: determining a needle trajectory of the needle by positioning the image generating device for aligning, in the image generated by the image generating device, a desired skin insertion site of the patient with a target region of the target anatomy; locking the needle in a direction of the needle trajectory; and repositioning the image generating device to obtain a lateral view of the needle trajectory for viewing an insertion depth and path of the needle during its insertion into the patient. Moreover, a motion transmission mechanism includes an output shaft and an output shaft driver which has two rotational components having respective contact faces between which the output shaft is pressed for frictional engagement therewith. The frictional engagement creates a force between the output shaft and the rotational components which is parallel to the rotational axis of the rotational components for allowing the rotational components to impart a translational motion to the output shaft by virtue of their rotational motion.
Owner:THE JOHN HOPKINS UNIV SCHOOL OF MEDICINE
Method for determining camera position from two-dimensional images that form a panorama
InactiveUS20070008312A1Save additional processing resourceShorten the timeImage enhancementImage analysisThree-dimensional spaceGlobal optimization
A method of estimating three-dimensional camera position information from a series of two-dimensional images that form a panorama employs common features in adjoining image pairs in the series to estimate a transform between the images in the pairs. The common features are subsequently employed to adjust an estimated rotational component of each transform by reducing error between coordinates corresponding to the common features in three-dimensional space in image pairs, on a pair-by-pair basis. A global optimization of the position estimation, used for long sequences of images such as 360 degree panoramas, refines the estimates of the rotational and focal length components of the transforms by concurrently reducing error between all 3D common feature coordinates for all adjoining pairs.
Owner:SEIKO EPSON CORP
Electromechanically driven external fixator and methods of use
A device for electromechanically and / or electro-pneumatically positioning a fractured bone having a first clamping unit adapted for attachment to the bone by at least one first bone fastener, a second clamping unit adapted for attachment to the bone by at least one second bone fastener, and at least one of: (i) a translation component operatively driven by a translational driver for relative translational movement of one clamping unit with respect to the other along a translational axis; (ii) an angulation component operatively driven by an angulational driver for relative angulational movement of one clamping unit with respect to the other along an articulation axis; and (iii) a rotational component operatively driven by a rotational driver for relative rotational movement of one clamping unit with respect to the other along a rotational axis.
Owner:ZIRAN BRUCE H +1
Circumferential Aerosol Device for Delivering Drugs to Olfactory Epithelium and Brain
InactiveUS20130142868A1Improve consistencyImprove efficiencyAnaesthesiaAerosol deliveryDrug compoundNanoparticle
Methods of delivering a pharmaceutical compounds directly to the olfactory epithelium of a mammal by providing a pharmaceutical aerosol suspension comprising an aerosol and the pharmaceutical compound; aerosolizing the suspension to generate a stream of droplets, the stream having a rotational component, and, delivering the droplets directly to the olfactory epithelium, wherein at least 15% of the droplets are delivered directly to the olfactory deposition. The pharmaceutical compound may be encapsulated within a liposome nanoparticle.
Owner:UNIV OF WASHINGTON
North-south pole determination for carrier injection sensorless position sensing systems
ActiveUS6967461B1Remove asymmetryMotor/generator/converter stoppersSynchronous motors startersCarrier signalRotational component
A system for enhancing the performance of a carrier insertion sensorless (CIS) position sensing system for a wound field synchronous machine that utilises the positively rotating components (+2ωct) of the carrier second harmonic currents that contain rotor position information before field excitation to serve as a north-south pole indicator that determines if the CIS system has locked onto the north or south pole of the rotor.
Owner:HAMILTON SUNDSTRAND CORP
Sports helmet with quick-release faceguard connector and adjustable internal pad element
The present invention is directed to an improved sports helmet including a quick release connector assembly for the faceguard that allows for rapid disconnection of the faceguard from the helmet shell. The connector includes a bracket, and a coupler mechanism featuring an elongated pin, a head component, a spring, a retractable engaging element and a washer. The connector assembly is moveable between a use position wherein the faceguard is secured to the shell by the bracket and the coupler mechanism, and a released position wherein the bracket and the faceguard are disconnected from the shell. An inwardly directed actuation force that lacks a rotational component is applied to the elongated pin to move from the use position to the released position. In addition, the sports helmet includes an adjustable pad assembly comprised of an inflatable bladder and a pad member, wherein the bladder displaces the pad member towards the center of the shell. Once sufficiently displaced, the pad member, which includes a molded pad element, cradles a portion of the helmet wearer's skull.
Owner:RIDDELL
Methods of and apparatus for making high aspect ratio microelectromechanical structures
Various embodiments of the invention present techniques for forming structures (e.g. HARMS-type structures) via an electrochemical extrusion (ELEX(TM)) process. Preferred embodiments perform the extrusion processes via depositions through anodeless conformable contact masks that are initially pressed against substrates that are then progressively pulled away or separated as the depositions thicken. A pattern of deposition may vary over the course of deposition by including more complex relative motion between the mask and the substrate elements. Such complex motion may include rotational components or translational motions having components that are not parallel to an axis of separation. More complex structures may be formed by combining the ELEX(TM) process with the selective deposition, blanket deposition, planarization, etching, and multi-layer operations of EFAB(TM).
Owner:MEMGEN
Sports helmet with quick-release faceguard connector and adjustable internal pad element
The present invention is directed to an improved sports helmet including a quick release connector assembly for the faceguard that allows for rapid disconnection of the faceguard from the helmet shell. The connector includes a bracket, and a coupler mechanism featuring an elongated pin, a head component, a spring, a retractable engaging element and a washer. The connector assembly is moveable between a use position wherein the faceguard is secured to the shell by the bracket and the coupler mechanism, and a released position wherein the bracket and the faceguard are disconnected from the shell. An inwardly directed actuation force that lacks a rotational component is applied to the elongated pin to move from the use position to the released position. In addition, the sports helmet includes an adjustable pad assembly comprised of an inflatable bladder and a pad member, wherein the bladder displaces the pad member towards the center of the shell. Once sufficiently displaced, the pad member, which includes a molded pad element, cradles a portion of the helmet wearer's skull.
Owner:RIDDELL
Electro-pneumatic gas turbine engine motoring system for bowed rotor engine starts
InactiveUS20170234235A1Avoid bowingEngine fuctionsEfficient propulsion technologiesElectricityElectronic communication
An engine starting system for a gas turbine engine is provided, the engine starting system comprising: a gas turbine engine including rotational components comprising an engine compressor, an engine turbine, and a rotor shaft operably connecting the engine turbine to the engine compressor, wherein each rotational component is configured to rotate when any one of the rotational components is rotated; an electro-pneumatic starter operably connected to at least one of the rotational components, the electro-pneumatic starter being configured to rotate the rotational components; an electric drive motor operably connected to the electro-pneumatic starter, the electric drive motor being configured to rotate the rotational components through the electro-pneumatic starter; and a motor controller in electronic communication with the electric drive motor, the motor controller being configured to command the electric drive motor to rotate the rotational components at a selected angular velocity for a selected period of time.
Owner:HAMILTON SUNDSTRAND CORP
Image capture device
An image capture device is disclosed which is equipped with an imaging unit, a first motion detector adapted to detect the rotational component of motion, a second motion detector adapted to detect the translational component of the motion, and an image blur compensation unit adapted to make compensation for image blur on the imaging unit on the basis of output signals of the first and second motion detectors.
Owner:OM DIGITAL SOLUTIONS CORP
Increased sensitivity for liquid meter
A lower cost meter comprised of an inner housing constructed out of a high permeable material surrounded by an outer housing constructed out of a lower cost, lower permeable material. A port is placed in the outer housing that runs down to the surface of the inner housing to detect the rotation of a rotational component that rotates inside the meter as fluid or gas flows through the meter. A sensor is placed in the port to detect rotation of the rotational component through the lower permeable material inner housing. The lower cost meter can be used for any application for measuring fluid or gas, and may be used in a service station environment for measuring fuel or vapor in vapor recovery applications.
Owner:GILBARCO
Apparatus and method for preparing bone for antirotational implantation of an orthopedic endoprosthesis
An apparatus and method for reaming a bone, facilitating pre-implantation alignment of a prosthesis using trial components, and preparing a bone site for anti-rotational implantation of the prosthesis is provided. The apparatus includes a boring end, a mating end disposed opposite the boring end, and a keying aid disposed between the boring end and mating end. The keying aid facilitates preparation of the bone canal for anti-rotational placement of a prosthesis having an anti-rotational component, or key. The method includes using the apparatus to ream a bone canal, conduct alignment trials, mark the bone canal with the desired orientation of the trial component, and insert the prosthesis into the marked bone canal for anti-rotational engagement with the reamed bone.
Owner:HOWMEDICA OSTEONICS CORP
Second order change detection in video
InactiveUS7203340B2Number of pixel which matchMaximizing numberInput/output for user-computer interactionImage analysisIntermediate imageHands free
Methods and devices for processing captured video frames to detect specific changes observable in video using three consecutive video frames. The images in the first video frame are compared with the second frame and the images of the second frame are compared with the third frame to produce two intermediate images which show the first order change observable in video. These interim images are then analyzed. A geometric transformation is found such that when the transformation is applied to one of these intermediate images, the number of pixels which match between the interim is maximized. This geometric transformation, which may include a linear as well as a rotational component, is then applied to one of the intermediate images to result in a transformed image. The transformed image is then subtracted from the other intermediate image to arrive at an end image which shows the second order change or the change in a change observable in video. The second order change image will show only those specific pixels which have changed in the images between the three original video frames. The invention may be used to detect changes in the state of a subject's eyes. A subject's blinking can thus be used for sending binary commands to a computer remotely. In particular, a double blink, i.e., two consecutive blinks, of a person can be used as a hand-free substitute to a clicking of a mouse.
Owner:NAT RES COUNCIL OF CANADA
Method and system of real-time graphical simulation of large rotational deformation and manipulation using modal warping
ActiveUS20060139347A1Large deformationComputation using non-denominational number representationDesign optimisation/simulationNODALInfinitesimal deformation
A real-time simulation method and system for large deformations is provided. Green's nonlinear strain tensor accurately models large deformations. Modal analysis based on a linear strain tensor has been shown to be suitable for real-time simulation, but is accurate only for moderately small deformations. In the present invention, the rotational component of an infinitesimal deformation is identified, and traditional linear modal analysis is extended to track that component. And the invention develops a procedure to integrate the small rotations occurring at the nodal points. An interesting feature of the formulation is that it can implement both position and orientation constraints in a straightforward manner. These constraints can be used to interactively manipulate the shape of a deformable solid by dragging / twisting a set of nodes. Experiments show that the technique runs in real-time even for a complex model, and that it can simulate large bending and / or twisting deformations with acceptable realism.
Owner:SEOUL NAT UNIV R&DB FOUND
Method for determining camera position from two-dimensional images that form a panorama
InactiveUS7565029B2Reduce errorsReduce the differenceImage enhancementImage analysisImage estimationThree-dimensional space
A method of estimating three-dimensional camera position information from a series of two-dimensional images that form a panorama employs common features in adjoining image pairs in the series to estimate a transform between the images in the pairs. The common features are subsequently employed to adjust an estimated rotational component of each transform by reducing error between coordinates corresponding to the common features in three-dimensional space in image pairs, on a pair-by-pair basis. A global optimization of the position estimation, used for long sequences of images such as 360 degree panoramas, refines the estimates of the rotational and focal length components of the transforms by concurrently reducing error between all 3D common feature coordinates for all adjoining pairs.
Owner:SEIKO EPSON CORP
Rotational component torque measurement and monitoring system
A system and method for measuring torque on a rotating component, comprising of signal-producing components which are applied to the rotating component, and a means for obtaining the signals produced by said signal producing components, in which at least two signal producing components are applied to the rotating component with some linear separation between the two signal producing components and their corresponding devices for obtaining signals produced, such that torque applied to the rotating component will cause a change in phase between the signals received from each of the signal-producing components and thus permit the measurement of torque based on this change in phase; one embodiment of this invention comprising two magnetic rings, one at either end of a driveshaft, with sensor coils placed near to each magnetic ring such that an alternating electrical current is produced, the comparative phase between these currents permitting measurement of torque on the driveshaft.
Owner:INT ELECTRONICS MACHINES
Apparatus and method for preparing bone for anti-rotational implantation of an orthopedic endoprosthesis
An apparatus and method for reaming a bone, facilitating pre-implantation alignment of a prosthesis using trial components, and preparing a bone site for anti-rotational implantation of the prosthesis is provided. The apparatus includes a boring end, a mating end disposed opposite the boring end, and a keying aid disposed between the boring end and mating end. The keying aid facilitates preparation of the bone canal for anti-rotational placement of a prosthesis having an anti-rotational component, or key. The method includes attaching a power tool to the mating end of the apparatus, reaming a bone canal with the boring end of the apparatus, detaching the power tool, attaching a trial component, conducting alignment trials, maintaining the apparatus in the desired position, detaching the trial component, cutting at least one keyway in the bone canal using a cutting device and the keying aid of the apparatus, removing the cutting device, removing the apparatus from the reamed bone canal, and inserting the prosthesis into anti-rotational engagement with the reamed bone by aligning the key on the prosthesis with the keyway in the bone canal.
Owner:HOWMEDICA OSTEONICS CORP
Dual-mode counter-rotating-to-traditional electric motor and system
Disclosed is a counter-rotating electric motor that includes an outer rotational component, an oppositely rotating inner rotational component, a force output system coupled to the outer rotational component, another force output means coupled to the inner rotational component, and an assembly for reversibly halting one of the rotational components, thereby converting the counter-rotating electric motor into a traditional motor.
Owner:E WISH TECH
Moving object detection device and moving object detection method
An apparatus for detecting a moving object includes: an image input unit that inputs a camera image; a motion vector generation unit that generates motion vectors of a plurality of points P in the image; an estimation unit that estimates rotational components of vehicle movement parameters as being equal to the inclination from each point P to a vanishing point when the inclination of the motion vector of each point P is corrected by the rotational components; and a determination unit that corrects the inclination of the motion vector of a given point Q in the image, and detects the existence of a moving object that moves in a direction different from the vehicle movement direction when the coincidence degree between the inclinations is low, while detects the existence of an object that radially moves toward the vanishing point when the coincidence degree of the inclinations is high.
Owner:TOSHIBA ALPINE AUTOMOTIVE TECHNOLOGY CORP
Electronic image stabilization method based on inertial navigation information
InactiveCN102780846AGood image stabilizationSolve the problem of shaking and blurringTelevision system detailsImage analysisImage stabilizationImage restoration
The invention provides an electronic image stabilization method based on inertial navigation information. The method comprises the following steps that: firstly, feature points of each image of a video are extracted, subsequently the overall motion estimation is carried out on two adjacent frames by using a feature point matching algorithm; if the overall motion estimation has larger errors, the overall motion is estimated by using motion information obtained by an inertial navigation system so as to compensate the errors caused by the fact that the overall motion is estimated by merely using an image; the overall motion estimation adopts an affine transformation model; then motion filtering is carried out on the model in combination with the image and the inertial navigation information so as to distinguish the active motion and a trembling component of a camera; and moreover, a rotational component introduced because of the trembling is determined; and furthermore an original video image is compensated by using the obtained trembling and rotational components so as to obtain a stable video; and the image restoration treatment is carried out on each frame of image of the video in combination with the image information and the inertial navigation prediction motion information. The method needs no complex hardware and is good in electronic image stabilization; and the calculation precision is improved.
Owner:TSINGHUA UNIV
Image mosaicing apparatus for mitigating curling effect
InactiveUS20090141043A1Effectively mitigate curlingGeometric image transformationCathode-ray tube indicatorsComputer scienceMatrix estimation
The mosaicing curling effect which causes a mosaic strip to curl is effectively mitigated in a system for generating a mosaic image from sequential images which partially overlap with one another. The system has a matrix estimating unit, an adjustment element calculating unit, and an image projecting unit. The matrix estimating unit estimates a transformation matrix for transformation between two adjacent images taken out from among the sequential images. The adjustment element calculating unit calculates an adjustment element of the estimated transformation matrix by decomposing the transformation matrix into a rotational component and a perspective component. The image projecting unit projects each image on the mosaic plane using the transformation matrix to which the calculated adjustment element has been applied.
Owner:HITACHI LTD
Method and system for online condition monitoring of multistage rotary machinery
InactiveUS20050177321A1Easy maintenancePromote repairElectric testing/monitoringRotary pressesJet aeroplaneEngineering
The present invention provides a method and system for online health condition monitoring of rotary machinery such as printing presses. The rotary machines have one or more stages and each stage has one or more rotary components. The method comprises the steps of: receiving one or more signals from sensors at each of the rotary units or bearing housings; generating an error matrix and diagnosing rotation synchronization errors among the different stages; generating error matrices using different signal processing techniques and diagnosing the health conditions of rotary components such as gears, bearings and shafts; and identifying the stages and rotary components having imperfections by comparing the current error matrices to stored reference error matrices. The present invention can also be used in other applications involving rotational components such as automobiles, airplanes, and power turbines to name a few.
Owner:WANG WILSON +2
Detection method and device of drop information
ActiveCN106412249AImprove accuracyDevices with sensorSubstation equipmentData transmissionComputer science
The invention provides a detection method and device of drop information. The detection method of the drop information comprises the following steps: acquiring the accelerated speed of a terminal, and detecting whether the acceleration is equal to a preset acceleration; acquiring the acceleration component before the current moment when detecting that the acceleration equals to the preset acceleration; acquiring the rotational component of the terminal before the current moment when detecting that the preset data transmission module has no data to upload; and determining the drop information according to the acceleration component and the rotational component. Since the final landing direction, angle and position can be acquired according to the acceleration component before the drop and the direction or angle change value in the drop process, the detection accuracy is improved.
Owner:GUANGDONG OPPO MOBILE TELECOMM CORP LTD
Rotor system fault diagnosis method and device based on vibration analysis
ActiveCN104697767AApplicable to online diagnosisAccurate identificationMachine part testingDiagnosis methodsNormal conditions
The invention discloses a rotor system fault diagnosis method and device based on vibration analysis. A sensor acquires normal conditions of a rotor system and vibration signals under fault conditions; the acquired vibration signals are decomposed by an improved inherent time scale decomposition method to generate a plurality of rotational components and residual signals; related rotational components capable of reflecting fault information are selected from the rotational components; energy of each related rotational component is calculated; related vector machine multi-classification models are built by an improved directed acyclic method; fault characteristics are inputted to the related vector machine multi-classification models for training and fault diagnosis. A motor, a first bearing block, a second bearing block and a third bearing block are arranged on a test bed base, the first bearing block, the second bearing block and the third bearing block respectively support a first rotating shaft and a second rotating shaft which are sequentially connected with an output shaft of the motor, both the first rotating shaft and the second rotating shaft are provided with a disk, and a sensor group is arranged at the end of the second rotating shaft. Rotor system fault types can be rapidly and accurately recognized, and the method and the device are applicable to online diagnosis of the rotor system.
Owner:TIANJIN UNIV
Second order change detection in video
InactiveUS20050047662A1Number of pixel which matchMaximizing numberInput/output for user-computer interactionImage analysisLinear componentIntermediate image
Methods and devices for processing captured video frames to detect specific changes observable in video using three consecutive video frames. The images in the first video frame are compared with the second frame and the images of the second frame are compared with the third frame to produce two intermediate images which show the first order change observable in video. These interim images are then analyzed. A geometric transformation is found such that when the transformation is applied to one of these intermediate images, the number of pixels which match between the interim is maximized. This geometric transformation, which may include a linear as well as a rotational component, is then applied to one of the intermediate images to result in a transformed image. The transformed image is then subtracted from the other intermediate image to arrive at an end image which shows the second order change or the change in a change observable in video. The second order change image will show only those specific pixels which have changed in the images between the three original video frames. The invention may be used to detect changes in the state of a subject's eyes. A subject's blinking can thus be used for sending binary commands to a computer remotely. In particular, a double blink, i.e.. two consecutive blinks, of a person can be used as a hand-free substitute to a clicking of a mouse.
Owner:NAT RES COUNCIL OF CANADA
NMR MAS inflow bernoulli bearing
ActiveUS7170292B2Improve stabilityIncrease stiffnessMagnetic circuit rotating partsMagnetic measurementsAxial pressureHydrostatic pressure
An improved axial gas bearing for a gas-driven NMR MAS sample rotor is disclosed that utilizes inward flow with a low rotational component over a rotor conical end. A conical flow region is formed between the rotor conical end and a conical stator bearing surface such that the included angle defining the stator surface is not less than the included angle defining the rotor conical end. Gas is injected radially inward with a significant axial rearward component from a number of small holes at high velocity from the periphery into the conical flow region. Compared to the radial velocity components, the tangential flow components of the injected gas are small and preferably opposed to the direction of the rotor rotation. The high and accelerating negative radial velocities may result in significant Bernoulli effect, such that the mean axial pressure over the conical rotor end may be less than atmospheric pressure for a given axial clearance, but as the clearance decreases, the hydrostatic effects exceed the Bernoulli effects and the mean axial pressure over the conical rotor end may then exceed atmospheric pressure by a substantial amount. Thus, a self-stabilizing axial bearing is formed with improved stability and stiffness for rotor surface speeds up to at least 80% of the speed of sound. Motive power required to spin the rotor may be provided by a radial-inflow microturbine at the opposite end of the rotor in a way that is readily compatible with automatic sample change.
Owner:DOTY SCI
Method for recognizing and separating magnetotelluric signal and noise
ActiveCN107657242AIncrease the identification linkAvoid Modal AliasingCharacter and pattern recognitionElectromagnetic interferenceNoise suppression
The invention provides a method for recognizing and separating magnetotelluric signal and noise. Firstly, a magnetotelluric signal collected in a strong electromagnetic interference environment is equidistantly segmented, by optimizing inherent time-scale decomposition, each magnetotelluric signal segment is subjected to adaptive decomposition to obtain a rotational component, and a sample entropyand a fuzzy entropy of the rotational component are extracted. Then, the sample entropy and the fuzzy entropy are taken as joint feature parameters to carry out fuzzy C-means clustering, according tothe feature parameters and a clustering method, a measured magnetotelluric signal sequence is divided into two kinds including a useful signal and a strong interference signal. Finally, only a magnetotelluric signal segment which is recognized as the strong interference signal is subjected to noise suppression processing by using a wavelet threshold, and a reconstructed magnetotelluric signal isobtained after superposition. The method has high reliability.
Owner:HUNAN NORMAL UNIVERSITY
Planetary reduction mechanism, pin structure, and method for manufacturing pin
InactiveUS20060040779A1Improve basic qualityImprove performanceGearboxesToothed gearingsEngineeringMechanical engineering
A planetary reduction mechanism includes a ring member and a planetary rotary member internally meshing with the internal gear, and a pin. The pin extends through the planetary rotary member for preventing orbital motion or rotation of the planetary rotary member, or for taking out an orbital motion component or a rotational component thereof. A continuous groove is formed on an outer circumference of the pin.
Owner:SUMITOMO HEAVY IND LTD
Vehicular disk brake
InactiveUS20070209888A1Simple configurationAvoid shakingMechanically actuated brakesElectrodynamic brake systemsEngineeringReducer
A speed reducer 32 has an eccentric rotating member 56 which rotates along with a motor shaft 55 of an electric motor 11, an outer gear 57 which is rotatably supported by the outer circumference of the eccentric rotating member 56, an inner gear 58 which is fixedly disposed so as to be coaxial with the motor shaft 55 so as to engage with the outer gear 57, an output member 59 which is connected to an input member 37 of the motion converting mechanism 22 disposed so as to be coaxial with the motor shaft 55 so as to be not relatively rotatable about the input member 37, and an Oldham mechanism 60 which is disposed between the outer gear 57 and the output member 59 so as to transmit only a rotational component of the outer gear 57.
Owner:NISSIN KOGYO CO LTD
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