| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 702153000 | 3D orientation | 26 |
| 20080215287 | MAGNETIC DATA PROCESSING DEVICE, METHOD, AND PROGRAM, AND MAGNETIC PROCESSING SYSTEM - A magnetic data processing device sequentially receives magnetic data samples each of which is three-dimensional vector data represented by a linear combination of fundamental vectors and which are outputted from a three-dimensional magnetic sensor. The magnetic data processing device defines a statistical population which includes a plurality of the magnetic data samples sequentially inputted and which signifies a rotation of the three-dimensional magnetic sensor of a predetermined range, and operates when a distribution of the magnetic data samples of the statistical population is flat, for deducing a direction perpendicular to a plane which approximates the flat distribution of the statistical population, as vertical-direction data representing a vertical direction. | 09-04-2008 |
| 20080270068 | Method for Estimating Movement of a Solid - The method estimates movement of a solid mobile in a medium capable of generating disturbances defined by a three-variable vector, wherein the movement is defined by a six-variable vector and the solid is equipped with at least one sensor sensitive to acceleration having at least three sensitive axes and at least one sensor sensitive to the magnetic field having at least three sensitive axes. The method for estimating the movement of a solid includes a step of calculating a nine-variable vector consisting of the six-variable movement vector and of the three-variable disturbance vector and a step of weighting the nine-variable vector capable of transforming the nine-variable vector into a vector with not more than five variables to be estimated. | 10-30-2008 |
| 20080281555 | METHOD AND DEVICE FOR DETECTING A SUBSTANTIALLY INVARIANT ROTATION AXIS - A method for detecting a substantially invariant rotation axis of a motion of a mobile body equipped with at least one inertial or magnetic sensor with three sensitive axes that includes acquiring physical measurements with respect to the three sensitive axes of the sensor, the physical measurements including at least three samples at different times, estimating a substantially invariant rotation axis in the physical measurements space, and identifying the estimated axis as the substantially invariant rotation axis of the motion. In one aspect, the method is applicable for estimating the motion of a mobile body rotating about a substantially invariant axis. | 11-13-2008 |
| 20080306708 | SYSTEM AND METHOD FOR ORIENTATION AND LOCATION CALIBRATION FOR IMAGE SENSORS - A system and method employing position measurement sensors and point sources of light to determine the location and orientation of video cameras in a simulation arena environment. In an embodiment, one or more accelerometers, gyroscopes, and/or magnetometers associated with each video camera may be used to determine the angular orientation of the video camera. The location of a camera is determined by measuring the distance from the camera to at least two known points, where the known points may be point sources of light, other cameras, or a combination thereof. Camera angular orientation information and camera location information may be combined to provide a complete set of data defining the position of each video camera. | 12-11-2008 |
| 20090024353 | Method of measuring pose of mobile robot and method and apparatus for measuring position of mobile robot using the same - A method of measuring pose of mobile robot, and method and apparatus for measuring for measuring position of mobile robot using the same are provided. The apparatus for measuring the pose of a mobile robot includes an accelerometer measuring acceleration of the mobile robot in a forward direction, a uniform-motion-determining unit determining whether the mobile robot belongs to a uniform motion section, an acceleration section, or a deceleration section, and a pose-calculating unit calculating a pitch and a roll of the mobile robot in the uniform motion section, using the relationship between the measured acceleration in the forward direction and the acceleration due to gravity. | 01-22-2009 |
| 20090171619 | SURVEYING PROCEDURE AND SYSTEM FOR A HIGH-RISE STRUCTURE - The invention concerns a surveying procedure for a structure ( | 07-02-2009 |
| 20090287451 | METHOD AND SYSTEM FOR AZIMUTH MEASUREMENTS USING GYRO SENSORS - A method and system for azimuth measurements using one or more gyro sensors is disclosed. The method includes acquiring a first data from each of the gyro sensors with an input axis aligned to a first angular orientation and acquiring a second data from each of the gyro sensors with the input axis flipped to a second angular orientation opposite to the first angular orientation. An earth rate component at the first angular orientations is determined based on a difference between the first data and the second data to cancel out bias of each of the gyro sensors. The method may include acquiring a third data of the gyro sensor with the input axis aligned to the same angular orientation as the first angular orientation. An average of the first data and the third data may be used instead of the first data for determining the earth rate component. | 11-19-2009 |
| 20100004896 | Method and apparatus for interpreting orientation invariant motion - Techniques for interpreting orientation invariant motion are disclosed. Unlike a prior art controller (e.g., a WII game controller) that has a specific physical design to induce or force a user to grip the controller in a consistent way, a disclosed controller does not have such a physical design and allow a user to grip the controller in any way that is comfortable to the user (e.g., around an axis z), one or more transformation or rotations are designed to transform or rotate readings from inertial sensors housed in the controller to readings independent from how the controller is being gripped by a user. | 01-07-2010 |
| 20100131235 | WORK SYSTEM AND INFORMATION PROCESSING METHOD - In a work system which measures 3D information of a target object by a light-section method, high measurement precision is realized. The invention includes a robot arm, a hand position detection member which is arranged at the distal end portion of the robot arm, a slit laser projector which irradiates slit light, a camera which is fixed at a position independent of the robot arm, and senses an image of the target object, and a computer which calculates a light-section plane of the slit light based on a light-section line formed on the hand position detection member which is included in image data of the target object obtained by image sensing by the camera, and calculates the position and orientation of the target object based on the calculated light-section plane and the light-section line formed on the target object. | 05-27-2010 |
| 20100145654 | APPARATUS OF CHASING POSTURE OF MOVING MATERIAL OBJECT, METHOD OF CHASING POSTURE OF MOVING MATERIAL OBJECT, APPARATUS OF CHASING POSTURE OF TOOTHBRUSH AND METHOD OF CHASING POSTURE OF TOOTHBRUSH USING THE SAMELECTRIC TOOTHBRUSH AND METHOD FOR CONTROLLING THEREOF - An apparatus for tracking an posture of a moving object in a three-dimensional space having a z-axis facing a reference surface of the moving object, an x-axis perpendicular to the z-axis in a virtual vertical plane including the z-axis, and a y-axis perpendicular to the x-axis in a virtual horizontal plane including the x-axis is described. A reference surface direction determination unit detects which direction the reference surface is facing with the x-axis as an axis of rotation. The x-axis deviation determination unit detects how far an x-axis direction of the moving object is relatively deviated from a magnetic north direction. The determination unit determines the posture of the moving object based on how far the x-axis of the moving object is deviated and which direction the reference surface is facing in response to detection signals of the reference surface direction determination unit and the x-axis deviation determination unit. | 06-10-2010 |
| 20110010129 | POSITIONING SYSTEM AND METHOD USING OPTICALLY TRACKED ANCHOR POINTS - A method and system for determining the location and attitude (roll, pitch, and yaw) of a moving object relative to an external reference frame by tracking unique two-dimensional patterns in the external reference frame from the moving object with displacement sensors. The displacement sensors lock onto the unique two-dimensional patterns by means of a steering mechanism which steers an optical path element capable of deviating the optical path using the displacement information from the relative movement of the two-dimensional patterns. The system is able to detect position and attitude to sub-millimeter accuracy without a physical connect between the moving object and the external reference frame and without a physical connection between the moving object and the external reference frame. | 01-13-2011 |
| 20110307213 | SYSTEM AND METHOD OF SENSING ATTITUDE AND ANGULAR RATE USING A MAGNETIC FIELD SENSOR AND ACCELEROMETER FOR PORTABLE ELECTRONIC DEVICES - A system for determining motion information including attitude and angular rate of a dynamic object. The system includes a magnetic-field sensing device to measure in the body coordinate frame of reference an intensity and/or direction of a magnetic field in three substantially orthogonal directions; an acceleration-sensing device adapted to measure total acceleration of the object in the body coordinate frame of reference; and a processor adapted to calculate attitude and angular rate by combining total acceleration measurement data and magnetic field measurement data with the kinematic model in a filter. | 12-15-2011 |
| 20120059624 | METHOD AND APPARATUS FOR DYNAMIC 6DOF MEASUREMENT - A method and apparatus is disclosed that modulates the position of one target tracked by a position measuring instrument, measures the path of the target, fits the parameters of a mathematical representation of the time varying path to the path of the target measured as a function of time, and obtains the position, orientation and velocity of the object on which the apparatus is mounted. Key aspects of the modulating nest and the improved method for determining the best fit mathematical representation of the path of the target resulting from the combined effect of the modulation and the motion of the object are disclosed. | 03-08-2012 |
| 20120084051 | METHOD AND ARRANGEMENT FOR MAGNETICALLY DETERMINING A POSITION - A method and an arrangement for magnetically determining a position using a permanent magnet is described, wherein the vector and local gradient of the magnetic flux density of the permanent magnet is measured using a position sensor, and the position and orientation of the magnetic dipole of the the permanent magnet relative to the position sensor is calculated from the measured values. A spherical permanent magnet having homogenous magnetization is used in the method and the arrangement, preventing previously present cross-sensitivity between the position and orientation determination, and allowing measurement without prior calibration. | 04-05-2012 |
| 20130185018 | Apparatuses and Methods for Estimating the Yaw Angle of a Device in a Gravitational Reference System Using Measurements of Motion Sensors and a Magnetometer Attached to the Device - Methods for estimating a yaw angle of a body reference system of a device relative to a gravitational reference system using motion sensors and a magnetometer attached to the device are provided. A method includes (A) receiving measurements from the motion sensors and the magnetometer, (B) determining a measured 3-D magnetic field, a roll, a pitch and a raw estimate of yaw in the body reference system based on the received measurements, (C) extracting a local 3-D magnetic field from the measured 3-D magnetic field, and (D) calculating yaw angle of the body reference system in the gravitational reference system based on the extracted local 3-D magnetic, the roll, the pitch and the raw estimate of yaw using at least two different methods, wherein estimated errors of the roll, the pitch, and the extracted local 3-D magnetic field affect an error of the yaw differently for the different methods. | 07-18-2013 |
| 20130304417 | DETERMINING AND ANALYZING MOVEMENT AND SPIN CHARACTERISTICS IN A GOLF SHOT - A system or apparatus ( | 11-14-2013 |
| 20140067317 | INFORMATION PROCESSING SYSTEM, METHOD, AND PROGRAM - An apparatus is provided with a first sensor unit that obtains two-dimensional information or three-dimensional information about a target object with a first position and orientation, a second sensor unit that obtains the two-dimensional information about the target object, a three-dimensional position and orientation measurement unit that measures three-dimensional position and orientation of the target object based on the information obtained by the first sensor unit, a second sensor position and orientation determination unit that calculates second position and orientation based on a measurement result with the three-dimensional position and orientation measurement unit and model information about the target object, and a three-dimensional position and orientation measurement unit that measures the three-dimensional position and orientation of the target object based on the information obtained by the second sensor unit with the second position and orientation and the model information about the target object. | 03-06-2014 |
| 20140180632 | Motion Analysis Device - A motion analysis device includes an observation data acquisition unit that acquires observation data indicating a trajectory of a target observation point which moves in conjunction with motion of a user (for example, a specified point in a club used by the user); a comparison unit that compares each of a plurality of reference data indicating a predetermined trajectory of the target observation point with the observation data acquired by the observation data acquisition unit; and an audio control unit that generates an audio signal according to a comparison result obtained by using the comparison unit. | 06-26-2014 |
| 20140278225 | DETERMINING CHANGES IN PHYSICAL LOCATION BASED ON THE OBSERVED MAGNETIC FIELD - Systems and methods for determining whether a device has moved based upon sensed changes to the observed magnetic field are disclosed herein. Various embodiments function on the principle that it is highly unlikely that the observed magnetic field will be the same in any two given locations (at least, when the observed magnetic field is measured in three dimensions), and moreover, it is unlikely that the observed magnetic field will change if the device remains stationary. Various embodiments therefore include one or more magnetic sensors (e.g., a compass) disposed within the device. The device can be configured to periodically check its current reading of the observed magnetic field. If the device determines that its magnetic reading has changed relative to its last reading, a possible or actual relocation event can then be declared. | 09-18-2014 |
| 20140372073 | TWO-STAGE FILTERING BASED METHOD FOR MULTIPLE TARGET TRACKING - A two-filter based method of detecting and tracking a target that can track an unknown and time-varying number of targets, while keeping continuous track, even in scenarios with large number of false contacts or missing measurements, is provided. More specifically, a first filter provides target detection, a second filter provides target tracking of the detected targets, and a clustering technique that operates after the first filter. The first filter starts with a uniform distribution over the surveillance area and resets periodically after the clustering technique is run. When the clustering technique runs, it detects the clusters corresponding to the different targets and passes them to the second filter that tracks these targets. | 12-18-2014 |
| 20150032410 | PADDLE LINK - REAL TIME PADDLING PERFORMANCE - A method and system are disclosed using a position sensor for tracking a trajectory of a paddling instrument. Optionally the trajectory may be used for determining a paddling improvement strategy, for recognizing a stroke type, for coordinating a rowing team and/or for calculating a paddling force. | 01-29-2015 |
| 20150362331 | SYSTEMS, DEVICES, AND METHODS FOR RECORDING AND TRANSMITTING DATA - Systems, devices, and methods for recording and transmitting data are provided. The systems, devices, and methods can be used in a variety of contexts, including in conjunction with swinging devices and prosthetics. In one exemplary embodiment, the sensor is configured in a manner that allows it be omni-directional such that its orientation with respect to the object for which it is detecting data is irrelevant to the ability to accurately record and transmit data. In another exemplary embodiment, the system allows a user to use the same sensor across multiple platforms, such as using it for golf and prosthetics, for golf and tennis, or for a regular golf swing and a putting stroke. Other devices, systems, methods, and uses of the same are also provided. | 12-17-2015 |
| 20160033281 | UPDATING INTENSITIES IN A PHD FILTER BASED ON A SENSOR TRACK ID - In one embodiment, a method of tracking multiple objects with a probabilistic hypothesis density filter is provided. The method includes obtaining measurements corresponding to a first object with at least one sensor, the at least one sensor providing one or more first track IDs for the measurements. A T | 02-04-2016 |
| 20160131482 | DEVICE FOR THE DETECTION OF THE ATTITUDE OF AUTO-VEHICLES AND CORRESPONDING METHOD - Described herein is a device for detecting the attitude of motor vehicles, which comprises using at least one filter of a complementary type for computing an estimate ({circumflex over (x)} | 05-12-2016 |
| 20160131484 | SYSTEM AND METHOD FOR DEVICE POSITION CLASSIFICATION - A system and method for classifying a position of a device may include processing one or more respective signal characteristics of one or more signals indicative of device orientation to determine a position of a device relative to a user. In a non-limiting example, various aspects of this disclosure include analyzing, over time, one or more characteristics of a first signal indicative of the alignment of a first device axis with a reference direction and one or more characteristics of a second signal indicative of the alignment of a second device axis with the known direction, and determining the position of the device based at least in part on such analysis. One or more analyzed signals may, for example, correspond to and/or be derived from MEMS sensor signals. | 05-12-2016 |
| 20190145765 | Three Dimensional Object Detection | 05-16-2019 |
