4363 results about "Compass" patented technology

An imaging system suitable for use with a vehicle based global positioning system includes an imaging sensor and a control. The imaging sensor is positioned at the vehicle and may face generally forwardly with respect to the direction of travel of the vehicle. The control may be operable to provide a record of vehicle movement since the last position data derived from the vehicle based global positioning system. The imaging system may also or otherwise be suitable for use with a vehicle based magnetic compass system. The imaging system may be operable in combination with a magnetic field sensor of the magnetic compass system to provide a substantially continuously calibrated heading indication, which is substantially resistant to local magnetic anomalies and changes in vehicle inclination. The imaging sensor may be associated with one or more other accessories of the vehicle.

An interior rearview mirror system includes a compass system and a display. The compass system is operable to display information indicative of a directional heading of the vehicle to a driver of the vehicle. The display comprises a plurality of ports formed in a reflective coating of a mirror reflective element and includes illumination sources positioned behind and generally aligned with corresponding ones of the ports. Each of the illumination sources may be energized to project illumination through a respective one of the ports such that the ports are backlit by the respective illumination sources, in order to convey the directional information to the driver of the vehicle. The system may include a microprocessor operable to control each illumination source via a respective wire connected between the microprocessor and each illumination source. The compass system may utilize a global positioning system for vehicle direction determination.

A system and method for locating, tracking, and/or monitoring the status of personnel and/or assets (collectively “trackees”), both indoors and outdoors, is provided. Tracking data obtained from any number of sources utilizing any number of tracking methods (e.g., inertial navigation and signal-based methods) may be provided as input to a mapping application. The mapping application may generate position estimates for trackees using a suite of mapping tools to make corrections to the tracking data. The mapping application may further use information from building data, when available, to enhance position estimates. Indoor tracking methods including, for example, sensor fusion methods, map matching methods, and map building methods may be implemented to take tracking data from one or more trackees and compute a more accurate tracking estimate for each trackee. Outdoor tracking methods may be implemented to enhance outdoor tracking data by combining tracking estimates such as inertial tracks with magnetic and/or compass data if and when available, and with GPS, if and when available.

A system for internet navigation using soft hyperlinks is disclosed, in connection with an illustrative information retrieval system with which it may be used. The navigation tool provides freedom to move through a collection of electronic documents independent of any hyperlink which has been inserted within an HTML page. A user can click on any term in a document page, not only those that are hyperlinked. For example, when a user clicks on an initial word within the document, the disclosed system employs a search engine in the background to retrieve a list of related terms. In an illustrative embodiment, a compass-like display appears with pointers indicating the first four terms returned by the search engine. These returned terms have the highest degree of correlation with the initial search term in a lexical knowledge base that the search engine constructs automatically. The disclosed system allows the user to move from the current document to one of a number of document lists which cover different associations between the initial word clicked on by the user and other terms extracted from within the retrieved list of related terms. The disclosed system may further allow the user to move to a document that is considered most related to the initial word clicked on by the user, or to a list of documents that are relevant to a phrase or paragraph selection indicated by the user within the current page.

A system for determining location of an object, the system including a Master Unit having an RF transceiver and adapted to measure distance to the Tag. The Master Unit has a first input from which it can derive its current position. The Master Unit transmits instructions to the Tag for movement in a predetermined direction. The Master Unit measures distance to the Tag after the movement in the predetermined direction. The Master Unit determines position of the Tag after the movement in the predetermined direction. The Tag can include a compass, a pedometer, and optionally an accelerometer, a solid-state gyroscope, an altimeter inputs for determining its current position by the Master Unit. The Master can optionally include a compass as well as a pedometer, an altimeter, an accelerometer, a solid-state gyroscope, an altimeter and a GPS receiver. Also, the Tag movement does not have to follow the Master's direction. However, the Master Unit still will be able to determine the Tag location(s). Also, the roles of the Master Unit and Tag can be reversed.

A method and system for providing an optical see-through Augmented Reality modified-scale display. This aspect includes a sensor suite 100 which includes a compass 102, an inertial measuring unit 104, and a video camera 106 for precise measurement of a user's current orientation and angular rotation rate. A sensor fusion module 108 may be included to produce a unified estimate of the user's angular rotation rate and current orientation to be provided to an orientation and rate estimate module 120. The orientation and rate estimate module 120 operates in a static or dynamic (prediction) mode. A render module 140 receives an orientation; and the render module 140 uses the orientation, a position from a position measuring system 142, and data from a database 144 to render graphic images of an object in their correct orientations and positions in an optical display 150.

The invention provides a personal tracking system comprising a wireless communication device, a pedometer electrically coupled to the wireless communication device, and an electronic compass operably positioned with respect to the pedometer. The wireless communication device receives readings from the pedometer and the electronic compass to provide position information. A method of tracking a location of a person, a system for tracking the location of a person, and an electronic module for a personal tracking system are also disclosed.

Systems and methods are provided that enable searches of social networks by acting as a “compass” that assists users in navigating the social network. Individual user participation is not required in response to queries from other users. The systems and methods offer navigational assistance or information as opposed to a traditional search which returns requested information, thus currently acceptable social mechanisms for arbitrating trust can be exploited. As a result, users do not make their personal information publicly searchable, while at the same time, they are protected from potential misrepresentations of facts.

The wearable tactile navigation system frees you from requiring to use your eyes as there is no display, all positional information is conveyed via touch. As a compass, the device nudges you towards North. As a GPS navigator, the device orients you towards a landmark (i.e., home) and lets you feel how far away home is. A bluetooth interface provides network capabilities, allowing you to download map landmarks from a cell phone. The bidirectional networking capability generalizes the device to a platform capable of collecting any sensor data as well as providing tactile messages and touch telepresence. The main application of the device is a wayfinding device for people that are blind and for people that suffer from Alzheimer's disease but there are many other applications where it is desirable to provide geographical information in tactile form as opposed to providing it in visual or auditory form.

A tilt-compensated electronic compass can be realized by calculating rather than measuring Earth's magnetic field component Z in a direction orthogonal to the two measurement axes of a 2-axis magnetic sensor. The orthogonal component Z can be calculated using a stored value for the Earth's magnetic field strength applicable over a wide geographic region. The calculation also requires using measured field values from the 2-axis sensor. Once Z is known, and using input from a 2-axis tilt sensor, compensated orthogonal components X and Y can be calculated by mathematically rotating the measured field strength values from a tilted 2-axis sensor back to the local horizontal plane. Thus, a very flat and compact tilt-compensated electronic compass is possible.

A method apparatus for orienting a map display in a mobile or portable device. An electronic compass is integrated with a hand-held portable or mobile mapping device and an electronic compass bearing is used to calculate an offset value with respect to the map default orientation. The map is thus reoriented in the display to the direction of the device. In an alternative embodiment, a GPS receiver is also integrated with the device. A heading fix is calculated from two or more GPS position fixes to determine orientation of the device. When a heading fix is unavailable, such as at initial start-up of the device, a compass heading is used in lieu of the GPS heading fix to orient the map on a display.

An electronic compass system includes a magnetic sensor circuit having at least two sensing elements for sensing perpendicular components of the Earth's magnetic field vector. A processing circuit is coupled to the sensor circuit to filter, process, and compute a heading. The processing circuit further selects an approximating geometric pattern, such as a sphere, ellipsoid, ellipse, or circle, determines an error metric of the data points relative to the approximating pattern, adjusts the pattern to minimize the error, thereby obtaining a best fit pattern. The best fit pattern is then used to calculate the heading for each successive sensor reading provided that the noise level is not noisy and until a new best fit pattern is identified. The electronic compass system is particularly well suited for implementation in a vehicle rearview mirror assembly.

An electronic compass system includes a magnetic sensor circuit having at least two sensing elements for sensing perpendicular components of the Earth's magnetic field vector. A processing circuit is coupled to the sensor circuit to filter, process, and compute a heading. The processing circuit may determine whether too much noise is present in the output signals received from said magnetic sensor circuit as a function of the relative strength of the Earth's magnetic field vector. The magnetic sensor circuit may include three magnetic field sensing elements contained in a common integrated package having a plurality of leads extending therefrom for mounting to a circuit board. The sensing elements need not be perpendicular to each other or parallel or perpendicular with the circuit board. The electronic compass system is particularly well suited for implementation in a vehicle rearview mirror assembly.

An automobile monitoring arrangement tracks and records automobile operation for post-use automobile operation-analysis. In one specific embodiment, a record of automobile-operation data contains periodic recordings of speed and direction of an automobile while it was being driven, as such data is provided by a conventional electronic compass and the automobile's electronic speed indicating signal. A processor performs calculations using speed and directional data to calculate acceleration and rate of directional change. Automobile operation data from the recording devices and the calculations performed is compared to stored reference data to determine if the vehicle was abused or driven in an unsafe manner by the operator. The data is output to a display showing automobile operating data and instances where the automobile was abused or driven in an unsafe manner.

A magnetic compass apparatus and method to account for magnetic distortion while determining a magnetic heading is disclosed. The method enables a compass module, comprising at least two magnetometers, to characterize its magnetic environment dynamically, while collecting data of a geomagnetic field; a user moves an apparatus through various orientations; the environment may or may not contain magnetic distortion influences. Data gathered by magnetometers and, optionally, accelerometers are processed through at least two filters before being transferred as a processed data set for repetitive measurement calculations. A series of calculations is executed recursively in time by solving one or more linear vector equations using processed data.

A compass compensation system is provided for automatically and continuously calibrating an electronic compass for a vehicle, without requiring an initial manual calibration or preset of the vehicle magnetic signature. The system initially adjusts a two axis sensor of the compass in response to a sampling of at least one initial data point. The system further calibrates the compass by sampling data points that are substantially opposite to one another on a plot of a magnetic field and averaging an ordinate of the data points to determine a respective zero value for the Earth magnetic field. The system also identifies a change in magnetic signature and adjusts the sensor assembly.

A pipe inspection system employing a camera head assembly incorporating multiple local condition sensors, an integral dipole Sonde, a three-axis compass, and a three-axis accelerometer. The camera head assembly terminates a multi-channel push-cable that relays local condition sensor and video information to a processor and display subsystem. A cable storage structure includes data connection and wireless capability with tool storage and one or more battery mounts for powering remote operation. During operation, the inspection system may produce a two- or three-dimensional (3D) map of the pipe or conduit from local condition sensor data and video image data acquired from structured light techniques or LED illumination.

Location-based technologies (e.g., global position system (GPS)) can be employed to facilitate providing multi-modal, multi-lingual location-based services. Identification of location can provide significant context as to identifying user state and intentions. Thus, location identification can facilitate providing/augmenting data and services (e.g., location-aware based suggestions, truncating contact lists based upon location, location-based reminders as a user approaches a predetermined location, truncating pre-loaded tasks, suggesting routes to accomplish pre-loaded tasks in a PIM). Still other aspects can augment GPS location identification with a compass, accelerometer, azimuth control, cellular triangulation, SPOT services of telephone, etc. Effectively, these alternative aspects can facilitate determination of a target location by detecting movement and direction of a user and/or portable device.

An automatic pool cleaner is provided of the type for random travel over submerged floor and side wall surfaces of a swimming pool or the like to dislodge and collect debris. The pool cleaner includes an electric-powered traction drive system for rotatably driving cleaner wheels, and an electric-powered water management system including a water supply pump and related manifold unit for venturi-vacuuming and collection of settled debris within a porous filter bag. A directional control system including an on-board compass monitors turning movements of the pool cleaner during normal random travel operation, and functions to regulate the traction drive system in a manner to prevent, e.g., excess twisting of a conduit such as a power cable tethered to the pool cleaner.

An attitude- and motion-sensing system for an electronic device, such as a cellular telephone, a game device, and the like, is disclosed. The system, which can be integrated into the portable electronic device, includes a two- or three-axis accelerometer and a three-axis magnetic compass. Data about the attitude of the electronic device from the accelerometer and magnetic compass are first processed by a signal processing unit that calculates attitude angles (pitch, roll, and yaw) and rotational angular velocities. These data are then translated into input signals for a specific application program associated with the electronic device.

Disclosed is a guitar effects controller comprising a digital compass and means for converting directional degree information to signal effect level values. Alternate embodiments provide different sensors, e.g., GPS receiver or tilt sensor. The invention allows user control of instrument volume or other signal effects by turning, tilting, or otherwise manipulating the guitar. Also disclosed is a user configuration system whereby an effects controller can be configured using RF or infrared technology, RFID tags, the Internet, and other tools. Controller function is enhanced by a multipurpose guitar docking station and case. Also disclosed is a universal music exchange medium to facilitate the rapid configuration of system components.

A pool cleaning robot adapted to move in a direction along the bottom surface of a pool. The robot comprises a compass, a rate gyroscope, and a controller adapted to determine the orientation of the robot, relative to a reference orientation thereof, based on readings of the compass and the gyroscope.