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Degrees Of Freedom patents

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Stable device for intervertebral distraction and fusion

Active gripper for haptic devices

Self-adaptive mechanical finger and method

Date/App# patent app List of recent Degrees Of Freedom-related patents
 End effector module patent thumbnailnew patent End effector module
An end effector module includes a palm base and robotic fingers extended from the palm base. Each robotic finger is composed of four joint shafts pivotally coupled with one another, and one of the four joint shafts, namely a start joint shaft, has a driving mechanism for driving a corresponding robotic finger to rotate, and each joint shaft has a driving mechanism to drive a next corresponding joint shaft to turn pivotally and bend with respect to other corresponding joint shafts, so that each robotic finger is module with four degrees of freedom for fine-tuning the position of a suction device installed at an end joint shaft, and the suction device can move along the normal direction of a suction point selected on the surface of a clamped object to achieve the effect of clamping and sucking an object securely without the risk of being loosened easily..
 Stable device for intervertebral distraction and fusion patent thumbnailStable device for intervertebral distraction and fusion
Improved methods and apparatuses for vertebral body distraction and fusion in accordance with various embodiments employ mechanisms for stabilizing a device so that the device can stay in the body and stably support the disc space during vertebral fusion following distraction of the adjacent vertebra by operation of the device. The device is inserted into the disc space and distracted from a compressed configuration to an expanded configuration to distract the disc space.
 Active gripper for haptic devices patent thumbnailActive gripper for haptic devices
An active gripper for a haptic device including a parallel kinematics structure providing at least three degrees of freedom including three translational degrees of freedom, wherein the gripper comprises a first contact surface being adapted for contact by a first portion of a hand of a user, a second contact surface being adapted for contact by a second portion of the user's hand, which hand's second portion being moveable in relation to the hand's first portion, and a moveable member arranged between the first contact surface and the second contact surface and being adapted to actively move the first contact surface and the second contact surface in relation to each other.. .
 Self-adaptive mechanical finger and method patent thumbnailSelf-adaptive mechanical finger and method
A mechanical finger comprises at least three phalanges, with a base phalanx pivotally connected at a proximal end to a base. At least one intermediate phalanx is pivotally connected at a proximal end to a distal end of the base phalanx.
 Surgical tool patent thumbnailSurgical tool
A surgical tool for minimally invasive surgery. In one embodiment, the surgical tool includes a proximal joint and a distal joint at opposite ends of a tube that constrain pivoting of adjacent parts to be about two perpendicular, intersecting axes.
 Integrated exercise workspace patent thumbnailIntegrated exercise workspace
An integrated exercise workspace (100) comprises an exercise device (110), a work surface (120), and elbow supports (130a, 130b). The exercise device (110) is operable by a lower extremity of a user.
 Device for determining surface defects patent thumbnailDevice for determining surface defects
A device for determining the existence or absence of surface defects includes a base, a movable platform, a support member, an image capturing unit, a light source unit, and a processing unit. The movable platform includes a main body for supporting the product, and a driving unit for moving the main body in six degrees of freedom, thereby orienting the product placed on the main body in different orientations.
 Optical position-measuring device patent thumbnailOptical position-measuring device
An optical position-measuring device is adapted to detect the position of an object in several spatial degrees of freedom. The object is disposed in a manner allowing it to move at least along a first direction of movement and along a second direction of movement.
 Device for determining surface defects patent thumbnailDevice for determining surface defects
A device for determining the surface defects of a product includes a base, a support member, a platform, a lighting unit, an image capturing unit, and a processing unit. The lighting unit includes a driving unit, a frame and a number of light sources.
 Eye alignment assembly patent thumbnailEye alignment assembly
A bow sight with at least one sight pin mounted to a frame assembly. At least one optical fiber is attached to the sight pin.
Fiber optic connectors having a rotatable ferrule holder and methods for making the same
Fiber optic connectors and components for fiber optic connectors with improved side-loading performance are disclosed along with methods for making the same. The fiber optic connector includes a ferrule and a ferrule holder where the ferrule holder may be disposed within a housing.
Interference exposure device and method
An interference exposure device, including: a light source (100) for providing an exposure light beam; a light homogenizer-collimator (200) for homogenizing and collimating the exposure light beam; an interference unit (300) including at least two gratings (303) for converting the exposure light beam into at least two coherent light beams and making the coherent light beams converge on a substrate surface to form thereon an interference exposure pattern, the gratings (303) each having a period and being distributed in correspondence with a desired exposure pattern; a driving and supporting means (406) for supporting and carrying the substrate to move with at least three degrees of freedom; and a measuring element (500) for measuring an angle between coordinate systems of the interference unit (300) and the means (406) to adjust an exposure position of the means (406) based on a measurement result of the measuring element (500) before exposing the substrate.. .
Epitaxial film on nanoscale structure
An embodiment of the invention includes an epitaxial layer that directly contacts, for example, a nanowire, fin, or pillar in a manner that allows the layer to relax with two or three degrees of freedom. The epitaxial layer may be included in a channel region of a transistor.
Docking station for tablet device
A docking station for a tablet device includes a security frame that is releasably connected to a pedestal. An upper head portion of the pedestal is rotatable through three degrees of freedom to allow for angular adjustment of the frame as it retains a tablet device.
Exposure apparatus, exposure method, and method of manufacturing device
An exposure apparatus includes: an optical element positioned along an optical axis of a projection optical system and configured to include a surface having a rotationally asymmetric shape; a driving unit configured to drive the optical element with at least two degrees of freedom; and a control unit configured to control the drive with two degrees of freedom to correct an aberration having twofold symmetry in a direction represented by a linear sum of the aberration of components in two directions based on information showing a relationship between a driving amount with two degrees of freedom and the components of the aberration in the two directions, and an amount to be adjusted of each of the components of the aberration in the two directions.. .
Drive transmission part for image forming apparatus
Drive transmission part and system including a coupling member configured to have one or more restricted degrees of freedom, and a gear hub to rotationally engage the coupling member. The drive transmission part can be included in a rotating part of an apparatus, such as an image forming apparatus.
Frequency resistance access magnetic memory
The invention provides a multibit magnetic memory structure comprising a stack of two or more magnetic plaquettes, each of which has at least three distinct magnetic states. The invention provides for a new type of vertical memory where each layer encodes information in two degrees of freedom, which has the potential to increase the theoretical storage capacity by factor 4n.
Two-dimensional, position-sensitive sensor-based system for positioning object having six degrees of freedom in space
A two-dimensional, position-sensitive sensor-based system for positioning an object having six degrees of freedom in space, used for positioning of a silicon table and mask table of a lithography machine. The system comprises mainly a semiconductor laser 1, an optical fiber collimator 2, optical fibers 3, 7, 10, and 13, an optical fiber splitter 4, filter plates 6, 9, and 12, three psd sensors 5, 8, and 11, and a signal processing system.
Motion simulation system and associated methods
A motion simulation system includes actuators having a planetary gearbox engaged with and driven by a servomotor engaged with a crank. A connector rod has a proximal end engaged with the crank of each actuator, and a distal end engaged with a top plate configured to attach to a platform assembly.
Modular service level objective (slo) subsystem for a network storage system
A service level objective (slo) subsystem that includes an slo engine in a network storage system that allows new degrees of freedom to be added to the slo subsystem, without requiring any modification of an associated slo engine or the system's existing slos, and without requiring the slo engine to have any a priori knowledge of the new degrees of freedom. In certain embodiments, the system has a modular design which includes the slo engine and one or more slo modules that interface with the slo engine.
Spherical motion mechanism
This document discusses, among other things, a mechanism for providing motion having two degrees of freedom and centered on a single point within a sphere. Methods to design the mechanism consistent with specified parameters are also described..
Method and apparatus for controlling a shift in a multi-mode powertrain system
A method for operating a powertrain system includes executing a transmission shift between an initial electrically-variable transmission (evt) range and a target evt range. The transmission shift includes transitioning to operating with three speed degrees of freedom including controlling speed of a second torque machine to synchronize speed of an oncoming clutch associated with the target evt range and coincidentally controlling speeds of a first torque machine and an engine to achieve a preferred speed of the output member of the transmission.
Precision tripod motion system with six degrees of freedom
A precision tripod motion system is provided. The tripod motion system in one example includes a bottom plate including three spaced-apart bottom single-degree-of-freedom (sdof) hinge portions, a top plate including three spaced-apart top three-degrees-of-freedom (tdof) joint portions, with the top plate configured to receive a workpiece, three linear actuators pivotally coupled to the three bottom sdof hinge portions of the bottom plate and coupled to the three top tdof joint portions of the top plate, with each linear actuator of the three linear actuators configured to change length over a linear actuation span, and a rotator component and/or a positioning table affixed to the top plate and the bottom plate.
Chip level sensor with multiple degrees of freedom
A sensing assembly device includes a substrate, a chamber above the substrate, a first piezoelectric gyroscope sensor positioned within the chamber, and a first accelerometer positioned within the chamber.. .
Flexible thermal interface for electronics
A planar heat pipe for removing heat from an electronic device. The heat pipe includes a planar portion defining a cool end of the heat pipe and a plate portion mounted to the electronic device and defining a hot end of the heat pipe.
Constant velocity joint
The constant velocity joint consists of the input shaft (1), the output shaft (2), three spherical left arms (4l), three spherical right arms (4r), and the stabilising mechanism (3). The stabilising mechanism (3) is made up of three stabilising segments (3.1), (3.2), and (3.3).
Joint prosthesis system with positionable head
A method includes inserting a stem into a bone, positioning a solid articulating portion of a mounting element within a tapered bore so that the mounting element is substantially free to pivot in multiple degrees of freedom relative to the stem while maintaining substantially contiguous engagement between the solid articulating portion and a portion of a surface of the tapered bore defining a circle, engaging the joint component to the mounting element, manipulating the mounting element to vary an angular position of the joint component with the mounting element positioned in the tapered bore while maintaining the substantially contiguous engagement, and mechanically locking the solid articulating portion in the tapered bore to fix a position of the mounting element relative to the stem after manipulating the mounting element by forcing the solid articulating portion toward a bottom of the tapered bore.. .
Expandable interbody fusion device
An expandable interbody fusion device includes superior and inferior plates that are configured to receive a sequentially inserted stack of expansion members or wafers. The superior and inferior plates include features that at least initially interlock the two plates until the superior plate is dislodged by pressure from the growing wafer stack.
Flexurally mounted kinematic coupling with improved repeatability
A kinematic coupling apparatus where mating between two objects occurs at six contacting elements, each located and oriented in compliance with the laws of kinematic design, and where each mating surface is constrained in its normal direction while having relatively high compliance in the other five degrees of freedom. The contact surfaces are preferably planar.
Compliant underactuated grasper
A compliant underactuated grasper includes a base and a plurality of fingers. At least one of the plurality of fingers includes: a proximal phalanx; a proximal joint connecting the proximal phalanx to the base; a distal phalanx; a distal joint connecting the distal phalanx to the proximal phalanx; and a member for moving the phalanges.
Compliant underactuated grasper
A compliant underactuated grasper includes a palm base and two fingers. Each of the fingers comprises: a proximal phalanx; a distal phalanx; a compliant flexure joint connecting the distal phalanx to the proximal phalanx; and a pin joint connecting the proximal phalanx to the palm base, the pin joint constraining angular movement of the proximal phalanx relative to the palm base to rotation about a pin pivot axis.
Biomimetic controller for increased dexterity prosthesis
A sliding mode biomimetic (bsm) controller for a prosthetic device, such as a prosthetic hand, includes an input classification component that receives electromyogram (egm) signals from two or more electromyogram (egm) sensors that are positioned on an amputee's body. The input classification component compares the egm input signals based on predetermined activation threshold values and identifies an input class to determine the amputee's intended movement of the prosthetic device.
Multiaxial joint, particularly for robotics
The present invention relates to a multi-axial joint (1), particularly for robotics. The multiaxial joint comprises a distal joint section (2) and a proximal joint section (4) that are pivotably and swivably connected relative to each other via at least one rotatory pivot joint (26) with a rotational axis (p) and at least one rotatory swivel joint (13) connected in series with the pivot joint (26) and having a swivel axis (r) extending perpendicular to the rotational axis (p).
Fast initialization for monocular visual slam
Apparatuses and methods for fast visual simultaneous localization and mapping are described. In one embodiment, a three-dimensional (3d) target is initialized immediately from a first reference image and prior to processing a subsequent image.
Exploiting spatial degrees of freedom in multiple input multiple output (mimo) radio systems
Methods and apparatuses, including computer program products, are provided for determining the null-space for a channel between a transmitter and an unintended receiver. In one aspect there is provided a method.
Dynamic, asymmetric rings
Dynamic, asymmetric rings and related communication equipment and methods are disclosed. Various features may be implemented to provide any or all of several degrees of freedom for managing resources in a communication network.
External fixation device adaptable for bone fractures
The current request reports an external fixation device to stabilize bone fractures with adaptable configuration during different stages of surgery or during treatment, through the generation of six degrees of freedom among the bone fragments. The device comprises numerous press-connector means, numerous cylindrical bars, numerous osteosynthesis screws and optionally from one to several rigid rings and one or more extension elements that permit generating diverse stable configurations to treat bone fractures..
Expandable interbody fusion device
An expandable interbody fusion device includes superior and inferior endplates that are configured to receive a sequentially inserted stack of interlocking expansion members or wafers. The like-configured wafers include features on their top and bottom surfaces that interlock the wafers in multiple degrees of freedom so that the wafer stack is not disrupted when the fusion device is fully expanded.
Robotic apparatus
A robotic apparatus has eight actuators (m0-m7) and a linkage (link 0-link 5) that actuates an end effector. Three serial macro freedoms have large ranges of motion and inertias.
Liquid processing system and liquid processing method
A liquid processing system to process liquid biological material includes: a trunk provided turnable on an axis, set within a predetermined work space; a first arm provided to the trunk and having at least three degrees of freedom or higher degrees of freedom; a second arm provided to the trunk and having at least three degrees of freedom or higher degrees of freedom; a driving mechanism configured to drive each of the trunk, the first arm, and the second arm; and physiochemical equipment situated within the work space and within the range of movement of at least one of the first and the second arm. The driving mechanism is operated by teaching playback based on the positions and shapes of the physiochemical equipment, and the biological material is processed using the physiochemical equipment..
Method for determining the relative position of an object in an area, and optical input system
A method for determining the relative position of an object in an area in six spatial degrees of freedom is provided. A marker pattern with at least three markers is applied on the object, and an optical detecting device is provided with a two-dimensional sensor surface.
Turbine blade fatigue life analysis using non-contact measurement and dynamical response reconstruction techniques
A method dynamically reconstructing a stress and strain field of a turbine blade includes providing a set of response measurements from at least one location on a turbine blade, band-pass filtering the set of response measurements based on an upper frequency limit and a lower frequency limit, determining an upper envelope and a lower envelope of the set of response measurements from local minima and local maxima of the set of response measurements, calculating a candidate intrinsic mode function (imf) from the upper envelope and the lower envelope of the set of response measurements, providing an n×n mode shape matrix for the turbine blade, where n is the number of degrees of freedom of the turbine blade, when the candidate imf is an actual imf, and calculating a response for another location on the turbine blade from the actual imf and mode shapes in the mode shape matrix.. .
Adjustable headrest for patients undergoing surgery
A headrest assembly includes a frame, a first head support configured and dimensioned to support a forehead of a patient, and a second head support configured and dimensioned to support a chin of the patient. An adjustment mechanism is mounted to the frame and is operable to adjust the position of at least one of the first and second head supports relative to the frame.
System and method for determining inertia properties of a rigid body
System for determining inertia properties of a rigid body, particularly the inertia tensor, the mass and/or the position of the center of mass, comprising: a carrier (10), which is designed for suspending a rigid body (2) from the carrier (10), such that the rigid body (2) is able to perform movements along the six degrees of freedom of the rigid body (b), at least six sensors (100) providing output signals for detecting the movement of the rigid body (2) along the six degrees of freedom of the rigid body (2), a measuring device (110) cooperating with the sensors (100), wherein the measuring device (110) is configured to measure said movement of the rigid body (2) by means of said output signals (ŝ1(tk)), and an analysing means (20) configured for determining from said output signals (ŝ1(tk)) said inertia properties (rs). Furthermore, the invention relates to a method for determining the inertia properties (rs)..
Method and device for spinal traction alignment
The present invention relates to a device for providing passive traction involving a pair of rails with 8 degrees of freedom and matching the user's spinal curve for providing relaxation and other medical treatment to a user.. .
Sensor positioning for 3d scanning
A method for obtaining a refined pose for a 3d sensor for online 3d modeling of a surface geometry of an object, the pose encompassing six degrees of freedom (dof) including three translation parameters and three orientation parameters, the method comprising: providing the 3d sensor, the 3d sensor being adapted to capture 3d point measurements of the surface of the object from a viewpoint; providing a geometry model of at least part of the surface; observing a portion of the surface of the object with the 3d sensor; measuring an initialization pose for the 3d sensor by at least one of positioning device pose measurement, predicted pose tracking and target observation; finding a best fit arrangement of the 3d point measurements in the geometry model using the initialization pose; generating the refined pose for the 3d sensor using the best fit arrangement.. .
Seat backboard and vehicle seat
In a seat backboard, a backboard section is formed with a size that enables it to pass through between left and right side frames of a seatback frame. Coupling fixing sections are also provided at the two seat width direction sides of the backboard section, the coupling fixing sections engaging with the front side of the side frames and supported by the side frames.
Stabilizing shooting rest apparatus and method
Disclosed herein is a stabilizing shooting rest that includes a base attachable to the belt of a wearer. The stabilizing shooting rest further includes a telescopic elongated member having a proximate end attached to the base and extending to a distal end, the telescopic elongated member attaching to the base such that the telescopic elongated member is movable about the base with at least two rotational degrees of freedom.
Stabilizing shooting rest apparatus and method
Disclosed herein is a stabilizing shooting rest that includes a base attachable to the belt of a wearer. The stabilizing shooting rest further includes a telescopic elongated member having a proximate end attached to the base and extending to a distal end, the telescopic elongated member attaching to the base such that the telescopic elongated member is movable about the base with at least two rotational degrees of freedom.
Constraining robotic manipulators with redundant degrees of freedom
Redundant robotic manipulators may be constrained in their motions during operation in a gravity-compensated mode by applying, in addition to gravity-compensating torques, constraining torques to one or more of the joints. The constraining torques may urge the manipulator to a specified canonical posture, and may be modeled by virtual springs attached to the constrained joints..
Floating offshore wind turbine with tuned mass dampers
A floating offshore wind turbine comprises a rotor with a plurality of blades, a nacelle and a nacelle support structure having a central longitudinal axis. A plurality of tuned mass damping configurations is arranged around the central longitudinal axis of the nacelle support structure to dampen vibrations in all 6 degrees of freedom..
Gimbal and levers with equalizer
A force transmission includes a gimbal plate having two degrees of freedom. Each of three lever arms is supported by a pivot between two ends of the lever arm.
Multicapacitor force/moment sensor arrays
A multicapacitor sensor system facilitates the measurement of applied shear and moment forces. In one disclosed configuration, moments may be detectable in x, y and z directions, resulting in a full, 3-axis load cell with 6 degrees of freedom.
Apparatus and method for customized shaping of orthodontic archwires and other medical devices
An apparatus and method for bending or shaping orthodontic archwires or other medical devices into a complex, patient individual shape is described. The apparatus comprises of two moveable, compact, manipulators with, in total, at least three revolute joints defining three rotation axes and at least three prismatic joints defining at least three translation axes.
Method for measuring and calibrating centroid of coarse stage of photolithography tool
A method for measuring and calibrating a centroid of a coarse stage of a photolithography tool by means of measuring an offset of the centroid relative to a midpoint of the coarse stage is disclosed. The method includes: individually performing closed-loop controls on parameters of the three degrees of freedom x, y, and rz of the coarse stage and converting the parameters into coordinates in a coordinate system of the coarse stage (601); for each of the x and y directions, estimating a range for the centroid (604), equally dividing the range into n parts (605), and designating each dividing point as an eccentricity (605); obtaining n rz direction positional deviations by conducting a compensation calibration and a calibration calculation based on each corresponding eccentricity (606-611); comparing a minimum of the n positional deviations with a preset rz-direction positional deviation threshold (613), completing the measurement if the latter is greater (614), and otherwise designating a range between the eccentricities adjacently in front of and behind the eccentricity corresponding to the minimum positional deviation as a new range for the centroid (616-617) and repeating the measurement until the minimum is smaller than the preset threshold..
Transconnector for coupling first and second spinal fixation elements
Transconnector devices and methods of use are provided. A transconnector device has the capability of connecting to elongate spinal fixation elements having various cross-sectional dimensions.
Insertable device and system for minimal access procedure
The present invention provides a system and single or multi-functional element device that can be inserted and temporarily placed or implanted into a structure having a lumen or hollow space, such as a subject's abdominal cavity to provide therewith access to the site of interest in connection with minimally invasive surgical procedures. The insertable device may be configured such that the functional elements have various degrees of freedom of movement with respect to orienting the functional elements or elements to provide access to the site from multiple and different orientations/perspectives as the procedure dictates, e.g., to provide multiple selectable views of the site, and may provide a stereoscopic view of the site of interest..
Ergonomics test buck
A test buck, a test buck system and related method are disclosed. The test buck system may comprise a controller and a test buck.
Animal traps and trigger mechanisms
An animal trap may include a source of compressed gas; a trigger mechanism configured to be actuated by an animal, and a kill mechanism powered by compressed gas. The trap may include two or more trigger valves connected in series.
Electromagnetic motor
An electromagnetic motor includes a stator and an armature arranged to move substantially linearly relative to the stator in an intended direction during operation of the motor. A first and second flexure are connected to a first end of the armature.
Phantom degrees of freedom for manipulating the movement of mechanical bodies
Methods, apparatus, and systems for controlling the movement of a mechanical body. In accordance with a method, desired movement information is received that identifies a desired motion of a mechanical body, the mechanical body having a first number of degrees of freedom.
Phantom degrees of freedom in joint estimation and control
Methods, apparatus, and systems for operating a surgical system. In accordance with a method, a position of a surgical instrument is measured, the surgical instrument being included in a mechanical assembly having a plurality of joints and a first number of degrees of freedom, the position of the surgical instrument being measured for each of a second number of degrees of freedom of the surgical instrument.
Phantom degrees of freedom for manipulating the movement of surgical systems
Methods, apparatus, and systems for performing minimally invasive surgery through an aperture of a patient. In accordance with a method, parameters are received from an input device associated with a surgeon, the parameters indicating a desired state of an end effector of a surgical instrument oriented through the aperture.
Highly reliable actuator with multiple degrees of freedom and method for moving a payload using the actuator
An actuator that has two or more degrees of freedom that moves a payload are described. The actuator may have two members, an actuator stator and an actuator armature, with the ability to move relative to each other in two or more degrees of freedom..
Wear-monitoring of a gearbox in a power station
The invention relates to a method of monitoring a wear of a gearbox in a power station, such as a windmill, water-wheel or tidal power station, the gearbox comprising at least two shafts, cogwheels and bearings as components of the gearbox. The method comprises sensing an angular position at the shafts by a rotational shaft encoder and monitoring the wear of the transmission-unit according to differences of the sensed angular positions and generating a condition signal representative of the wear of the gearbox according to the monitored differences.
Electromagnetic (em) power density and field characterization technique
An apparatus and method for characterization of a directed beam of electromagnetic radiation is provided. An exemplary embodiment of the invention can include an apparatus and measuring technique method which uses a model for blackbody radiation that includes consideration all the degrees of freedom due to translation, vibration, and rotation of molecules or atoms that make up the absorber and a heat transfer term which averages the behavior of all the atoms of the material as a function of temperature.
Multichannel trocar
A multi-channel trocar developed for use in minimal-access surgery/single incision laparoscopic surgery. The trocar permits surgical access of two or more articulating laparoscopic instruments or scopes through one skin incision using a dividing membrane to separate the working channels.
Motion tracking system for real time adaptive imaging and spectroscopy
This invention relates to a system that adaptively compensates for subject motion in real-time in an imaging system. An object orientation marker (30), preferably a retro-grate reflector (rgr), is placed on the head or other body organ of interest of a patient (p) during a scan, such as an mri scan.
Low frequency folded pendulum and vertical seismic sensor utilizing such a folded pendulum
A folded pendulum is described. The folded pendulum can be a monolithic pendulum and is positioned in the vertical configuration.
Geodesic lens antenna with azimuth and elevation beamforming
An array of geodesic lens antennas (glas) comprises multiple vertical radiating slots, each formed into an annulus, which are individually controlled by feeding rings. One feeding ring is provided for each of the gla elevation elements, resulting in multiple, parallel waveguide channels that together enable elevation beam steering, thus forming a concentric stack of geodesic lenses.
Adjustable foot positioning system
A limb positioner apparatus includes a stabilizing plate and a movable positioning plate for arrangement about a joint or fracture. The movable plate is movable with respect to the stabilizing plate about three mutually perpendicular planes which intersect at a point corresponding to a center of rotation of the joint or fracture.
Systems for imaging structures of a subject and related methods
Systems for imaging structures of a subject are provided. The subject has an optical axis, a pupil, and a nodal point.
Parallel robot with two degrees of freedom having two kinematic chains with maximized flexure stiffness
A parallel robot is composed of two kinematic chains connecting a base to a platform having two degrees of freedom so that the platform is movable with respect to the base in a plane (x, z) of a space (x, y, z) in which the directions x, y and z are orthogonal to one another. The kinematic chains each having a bend connecting a proximal sub-chain, itself connected to the base, and a distal sub-chain, itself connected to the platform.

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Degrees Of Freedom topics: Degrees Of Freedom, Virtual Reality, Tracking System, Laser Welding, Input Device, Input Devices, Conductive Elements, Transducer, Video Game, Navigation, Distributed, Cartesian Coordinates, Coordinates, Instruments, Surgical Instrument

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