Abstract: An electronic device includes a first body, a second body, and a connection device. The first body has a first surface. A first display device is placed at the first surface. The second body has a second surface, and a second display device is placed at the second surface. The connection device configured to rotatably connect the first body and the second body. The electronic device has a first position. At the first position, the first surface and the second surface face a same direction, and the connection device is under a display surface formed by the first surface and the second surface and not exposed at the display surface.

Abstract: A display apparatus includes a display panel, a gate driver, a data driver and a driving controller. The display panel includes an edge area having a rounded shape in a first state and having a flat shape in a second state. The gate driver applies a gate signal to a gate line of the display panel, the data driver applies a data voltage to a data line of the display panel, and the driving controller processes input image data according to the first state and the second state. The display panel includes a first display area having a first pixel density and a second display area having a second pixel density less than the first pixel density. The second display area corresponds to the edge area of the display panel.

Abstract: An Information Handling System (IHS) includes a foldable display and is configured to determine a posture of the IHS based on the angle that the display is folded. The folded display is divided into first and second screen portions. Changes in the posture of the IHS are detected and the content and orientation of the content to display in the respective screen portions is determined. A gap is displayed along the fold of the foldable display, where the gap separates the screen portions along the fold. The width of the gap separating the screen portions may be determined based on the angle that the foldable display is folded and/or based on various additional aspects of the current posture of the IHS.

Abstract: A flexible display capable of improving an angle-measuring accuracy using different kinds of sensors and a method of measuring an angle thereof. The flexible display includes a first sensor unit disposed in a first region and including different kinds of sensors, a second sensor unit disposed in a second region adjacent to the first region and including different kinds of sensors, and an angle-measuring unit measuring a folding angle between the first region and the second region in response to sensing signals outputted from the first sensor unit and the second sensor unit.

Abstract: In some examples, a computing device may include a first and a second touch screen display device coupled to each other by one or more hinges. The computing device may receive sensor data from one or more sensors, determine a first orientation of the computing device, and determine a first position of a user relative to the computing device. The computing device may route and/or rotate content sent to at least one of the display devices based on the first orientation and the first position. After the user places the computing device in a second orientation, the computing device may, after receiving additional sensor data, determine a second orientation of the computing device and a second position of the user. The computing device may route and/or rotate content sent to at least one of the display devices based on the second orientation and the second position.

Abstract: An information handling system having a foldable display presents visual images in display zones defined upon detection of a folded display state. For example, a virtual bezel is generated at a foldable display based upon fold state, orientation state and application state so that applications are presented within a display zone to have touch selectively enabled or disabled within the virtual bezel.

Abstract: A novel electronic device including a flexible display is presented. The electronic device has a flexible display including an organic light emission diodes and a plurality of columnar bodies linked together. Users can transform the shape of the electronic device into a tablet, an eBook, or a hand-held gaming device. The electronic device is configured to resize its main display area in accordance with the selected mode.

Abstract: A device for measurement of deviation of a surface being assessed from a reference axis includes a device body having a means for determining a pre-selected reference axis, the means including a reference surface of the device body which can be aligned with the reference axis, and an indicator on the device body for indicating alignment of the reference surface with the reference axis. A deviation meter connected to the device body is configured to measure the extent of deviation from the reference axis, wherein the deviation meter includes a reference point and a gauging means indicating the measure of the deviation of the reference point from the reference surface. An adjuster is configured to adjust the relative position of the reference point of the deviation meter to the reference surface of the device.

Abstract: A communication device includes: a first unit that is provided with a first display unit, a transmitter unit, and a receiver unit, a second unit that is detachably attached to the first unit and that is provided with a second display unit; an input unit; a communication unit that transmits a voice signal from the transmitter unit to a communication partner and that inputs to the receiver unit a voice signal from the communication partner; a detection unit that detects whether the first and second unit are in a separated state; and a control unit that executes an application, displays images that correspond to the execution of the application on the first and second display units, and when voice call is to be carried out, and moreover, when the detection result indicates that the first and second unit are in the separated state, displays images on the second display unit.

Abstract: A method and apparatus for inputting various operation instructions to a device including two movable panels. The method includes determining whether a relative angle between the first panel and the second panel is within an effective angle range; determining whether the relative angle within the effective angle range is maintained during an effective time; and inputting an operation instruction to the device based on whether the relative angle between the first panel and the second panel is within the effective angle range and whether the relative angle within the effective angle range is maintained during the effective time.

Abstract: A multi-panel electronic device and method are disclosed. In a particular embodiment, a method includes receiving first acceleration data from a first sensor coupled to a first portion of an electronic device. The method further includes receiving second acceleration data from a second sensor coupled to a second portion of the electronic device, where a position of the first portion is movable with respect to a position of the second portion. The method further includes determining a configuration of the electronic device at least partially based on the first acceleration data and the second acceleration data.

Abstract: An electronic device may have electrical components mounted in alignment with an electronic device housing. A compass in the electronic device housing may potentially be misaligned with respect to the electrical components and the electronic device housing. Reference devices having compasses may be used to gather compass data while one or more electrical components in the reference devices are controlled to generate magnetic fields that are detected by the compasses. An electronic device may be calibrated in a factory or in the field using calibration data produced by comparing compass readings gathered from the compass in the device while controlling electrical components in the device to compass data from the reference devices. Calibration data may be applied to compass readings in real time to correct for misalignment between the compass and the electronic device housing.

Abstract: Apparatus and methods to compensate hard iron and soft iron magnetic interference in magnetic sensing devices are described. Hard and soft iron interference may be modeled using an ellipsoidal surface generated by a plurality of magnetic field measurements. A displacement of the ellipsoid from a reference frame origin corresponds to hard iron or permanent magnetic field interference. A shape and orientation of the ellipsoid corresponds to soft iron magnetic field interference. The ellipsoidal surface may be analyzed to obtain magnetic field compensation values for cancelling hard iron and soft iron interference.

Abstract: A parameter related to the Earth's magnetic field can be used to determine accuracy of a magnetometer of a mobile device. In one aspect, a first instance of a parameter related to Earth's magnetic field is determined using data generated by the magnetometer. The magnetometer data can be based in part on a position of the mobile device with respect to the Earth. A second instance of the parameter can be determined using data generated by a model of Earth's magnetic field. The model data can also be based in part on the position of the mobile device with respect to the Earth. The first instance of the parameter can be compared with the second instance of the parameter. An accuracy metric for the magnetometer can be determined based on a result of the comparison. An indication of the accuracy metric can be presented by the mobile device.

Abstract: There is provided a flexible display capable of improving an angle-measuring accuracy using different kinds of sensors and a method of measuring an angle thereof. The flexible display includes a first sensor unit disposed in a first region and including different kinds of sensors, a second sensor unit disposed in a second region adjacent to the first region and including different kinds of sensors, and an angle-measuring unit measuring a folding angle between the first region and the second region in response to sensing signals outputted from the first sensor unit and the second sensor unit.

Abstract: A method and an electronic device for determining the direction of a magnetic field, in which a mobile electronic compass device is used to measure three field vectors of the magnetic field the desired number of times. From each measurement, a data point (p1-p6) is formed in a three-dimensional co-ordinate system, for which measured data points a common reference point (C) is calculated. The location of the device is determined relative to the reference point in said co-ordinate system and the co-ordinates of the reference point obtained are compared to the co-ordinates of at least one previous reference point, and the co-ordinate values of the reference point are calibrated, after which the direction of the magnetic field is indicated with the aid of the reference point.

Abstract: An image capture apparatus comprises an inclination detection unit which detects an inclination of the image capture apparatus, a display unit which displays the inclination of the image capture apparatus, and a predetermined reference orientation set for the image capture apparatus, a still state determination unit which determines that the image capture apparatus is in a still state, if a variation of the inclination falls within a predetermined range, and a reference orientation setting unit which sets the reference orientation of the image capture apparatus, wherein the reference orientation setting unit does not set the reference orientation if the still state determination unit determines that the image capture apparatus is not in the still state.

Abstract: A power tool includes a housing, an output shaft having a tool axis, and a motion sensor that senses motion of the tool housing. A control circuit receives an input signal from the motion sensor, to make a first determination, based on the input signal, whether the tool is being operated in a horizontal mode or a vertical mode. The control circuit makes a second determination, based on the input signal, whether the tool axis is substantially level when the tool is being operated in the horizontal mode or the tool axis is substantially plumb when the tool is being operated in the vertical mode. An indicator receives an output signal from the control circuit that causes the indicator to indicate whether the tool axis is level when being operated in the horizontal mode or plumb when being operated in the vertical mode.

Abstract: A method and system for compensating for significant soft iron magnetic disturbances in a heading reference system, such as an aircraft heading reference system, such as an integrated standby unit; or a vehicle inertial system, provides a heading correction signal to the heading reference system when a detected difference in value between a gyro heading relative to magnetic north and a magnetometer reading during a defined measurement period exceeds a predetermined acceptable threshold value of change, such as one based on the expected gyro drift over that period. Upon receipt of the heading correction signal, the gyro heading is adjusted to maintain an accurate heading relative to true magnetic north. If this threshold value is not exceeded, then the magnetometer reading is used for the heading value. This method is iteratively repeated in order to continually maintain an accurate heading and may be employed for each heading measurement axis.

Abstract: A method of predicting a well trajectory wherein the method utilises a series of parameters to calculate the trajectory. The method is characterised in that the parameters include the angle of a drill bit (23) relative to a well bore (27), and the variation of said angle during drilling wherein the variation of said angle is related to the moment on the bit (23).

Abstract: A method and system are presented for use in determination of the orientation of an aerospace platform with respect to a first rotation axis. A direction of a rotation rate vector of said aerospace platform within a lateral plane intersecting with said first rotation axis is measured and the measured data is analyzed to determine an orientation angle of said aerospace platform about said first rotation axis. While the aerospace platform is in a predetermined-dynamic state movement, a certain direction is determined by measuring a direction of the rotation rate of the aerospace platform within said lateral plane by a sensor assembly mounted on said platform and including at least one rotation rate sensor. An orientation of the platform with respect to said first axis is determined by determining a relation between said certain direction and said known direction within said external reference frame.

Abstract: Embodiments of the present invention can provide an integrated electronic compass and circuit system having a semiconductor substrate and one or more CMOS integrated circuits formed on one or more portions of the semiconductor substrate. The system can have an electronic compass device operably coupled to the one or more CMOS integrated circuits. The system can also have a plurality of electronic compass devices configured in a parallel arrangement in a hub and spoke configuration.

Abstract: The magnitude of a sensed, raw magnetic field in a portable device is monitored over a given time interval. The monitored magnitude is compared with predetermined criteria. Based on the comparison, recalibration of a compass function is signed. Other embodiments are also described and claimed.

Abstract: A portable electronic apparatus calibrates a geomagnetism sensor at a suitable timing. When a key is operated in a power-saving mode, the power-saving mode ends, and a detection value of a geomagnetism sensor is calibrated. The calibration is executed in a state where a user tries to view a screen of a display part, therefore the calibration is executed in a state where an angle of housings with respect to the horizontal plane is suitable, and a calculation precision of a bearing is improved. By executing calibration during activation of the navigation application useless calibration is not carried out, and an increase of power consumed is suppressed.

Abstract: An apparatus for measuring an angle of inclination of a tangent to a centerline curve of a tube includes a shuttle and a clinometer rotatably fixed to the shuttle. The shuttle comprises a pair of circular end plates and a shaft that joins the end plates. A carrier is attached to the shaft and the clinometer is fixed to the carrier. The shaft is rotatable with respect to the end plates, or the carrier is rotatable with respect to the shaft. The method of determining curvature of a tube having a centerline curve comprises measuring angles of inclination of the tangent to the centerline curve at a plurality of axial locations along the tube.

Abstract: The invention concerns a method for the determination of an azimuth angle for servicing purposes (?w) of a wind power plant with a machinery housing that is rotatable on a tower through an azimuth angle (?) and a rotor that is rotatable on a machinery housing through a rotor angle (?) such that a plurality of combinations of rotor angles (?) and azimuth angles (?) is adjusted, that are determined at the rotor subject to the influence of a turbulent wind field, which is effecting torques, for the adjusted combinations of rotor angles (?) and azimuth angles (?) and the associated azimuth angle (?), a torque envelope of the torque-azimuth angle associations is determined, surrounding areas (U(?)) with comparable sector sizes of the azimuth angle (?) are generated and associated magnitude values of the torque envelope are determined, a surrounding area (U(?w)) with magnitude-wise smaller torque envelope values than the neighboring surrounding areas is selected and the azimuth angle for servicing purposes (?w) is

Abstract: Calibration systems and methods simultaneously calibrate a magnetic compass and gyroscopes. An exemplary embodiment rotates the field calibration system. Based upon the rotation sensed by the magnetic compass and the gyroscopes, the field calibration system determines compensation for both the magnetic compass and the gyroscopes.

Abstract: Multiple instances of a geomagnetic field are calculated. Multiple instances of an average magnitude of a subset of the instances of the geomagnetic field are also calculated. When the average magnitude changes by more than a first predetermined threshold, the user is informed that compass accuracy has degraded. Other embodiments are also described and claimed.

Abstract: The magnitude of a sensed, raw magnetic field in a portable device is monitored over a given time interval. The monitored magnitude is compared with predetermined criteria. Based on the comparison, recalibration of a compass function is signed. Other embodiments are also described and claimed.

Abstract: A multi-panel electronic device and method are disclosed. In a particular embodiment, a method includes receiving first acceleration data from a first sensor coupled to a first portion of an electronic device. The method further includes receiving second acceleration data from a second sensor coupled to a second portion of the electronic device, where a position of the first portion is movable with respect to a position of the second portion. The method further includes determining a configuration of the electronic device at least partially based on the first acceleration data and the second acceleration data.

Abstract: A method is disclosed which utilizes multiple overlapping surveys to estimate a position in a wellbore and related position uncertainty. Multiple surveys are often taken over the same portion of a wellbore either concurrently or sequentially and/or using various instruments. Each survey generates an estimated survey position and related uncertainty for a given location in the wellbore. By combining the estimated survey positions and uncertainties for these overlapping surveys, a resultant position and related ellipsoid of uncertainty is estimated. This resultant position estimates a position in the wellbore by incorporating the estimated survey positions and uncertainties of multiple overlapping surveys.

Abstract: A device and a method for axle alignment, in which an angle between a wheel of a vehicle and a reference direction is determined, the angle being determined using a transducer, which contains at least one rotation speed sensor. The transducer is set so that it assumes a known position with respect to the reference direction. The angle obtained for the transducer arranged on the wheel of the vehicle is a measure of a trail angle or a camber angle of the wheel.

Abstract: The invention relates to a deviation calculation rule of the circular type for the monitoring of a two-dimensional deviated well path. The rule consists of a support plate (10) on which is marked a circular dial with two semi-circular scales (G1, G2) graduated in degrees for locating the inclination angle at the entry point and the exit point of a section of path, at least two rotary disks (12, 121) each marked with a plurality of concentric circles (C1 through Cn; C1 through C′n that each correspond to an inclination gradient for a specific drilled length (Gbu), at least one bi-sectoral disk (14) with, on its edges, scales (E1 through E4) used to locate the various Gbu circles on the disk being used (12), a first sliding system (16h) allowing for a direct reading of the horizontal deflections and a second sliding system (16v) allowing for a direct reading of the vertical depth deviations.

Abstract: A magnetic observatory device is deployed at a fixed location such as the sea bed to provide data measuring variations in the local earth magnetic field. This data is used to correct information from magnetic direction sensors, for example in a measurement-while-drilling system of a drill string. Also described is a reference apparatus for initial calibration of the device or for marine magnetic mapping purposes.

Abstract: A calibration tool for calibrating the leveling and tilting of a wafer transporting blade and a method for using such tool are provided. The calibration tool is constructed by a body portion and a leg portion each having a surface that are provided with a multiplicity of calibration lines facing each other such that a two-dimensional calibration can be performed on a blade simultaneously by positioning the blade between the body portion and the leg portion. The capability of measuring a plane, i.e., leveling and tilting, simultaneously is a great benefit made possible by the present invention method and apparatus.

Abstract: The invention relates to a logging method and apparatus adapted for use in non-circular boreholes which, in one embodiment, comprises the use of a first and a second sonde, each sonde having: a pad adapted for contact with the borehole wall, at least a sensor on each pad, and an extendable arm for keeping the pad against the wall of the borehole. The first and second sonde produce measurements related to the same property of the formations, and the first and the second sonde are connected so as to keep the pads aligned with a 90.degree. azimuthal spacing therebetween.

Abstract: A compass able to draw any-size ellipses consists of a body, a first and a second position ring, a movable rod, a pen rod, a position rod and a coil spring. The first and the second position ring are screwed on an upper and a lower portion of the body respectively. The movable rod is fitted in a lengthwise center hole of the body. The pen rod is combined on a lengthwise opening of the movable rod. The position rod is fitted in a tubular chamber of the movable rod, with the coil spring fitted around the position rod. The movable rod can move up and down to rotate the pen rod, and the pen rod can be turned around the body for one round by pushing down and up of the movable rod to draw any-size ellipses.

Abstract: Seismic data is combined with well log data to generate a two-dimensional geopressure prediction display; this permits deviated and horizontal well planning plus lithology detection. Shale fraction analysis, compaction trend, and seismic velocity may be automatically or interactively generated on a computer work station with graphics displays to avoid anomalous results. Corrections to velocity predictions by check shots or VSP, and translation of trend curves for laterally offset areas increases accuracy of the geopressure predictions. Multiple wells' logs in a basin permits analysis fluid migrations.

Abstract: A deviated borehole penetrating a subsurface formation and intersected by a formation fracture is surveyed with a borehole televiewer acoustic logging system. Relative fracture dip angle and dip direction calculated from such survey with respect to the borehole axis is transformed into a true fracture dip angle and dip direction with respect to the vertical of the earth's coordinate system.

Abstract: Subterranean fault-related facture systems are located and identified and the direction of action of paleostresses causing the fault-related fracture system can be determined from a record representative of depth, dip angle, and dip direction of subterranean generally planar formation features intersecting a borehole and from information relating to borehole diameter, dip angle, and dip direction.

Abstract: In the drilling of a well, buckling of a drill string is prevented by determining the buoyed weight, sliding friction, and external forces applied to the segments of a drill string and comparing the resultant axial force on each segment with a buckling threshold to indicate when the resultant axial force exceeds the threshold. The azimuth and inclination of segments of the drill string are measured. The forces on the drill string are resolved into the axial and normal components applied to the next shallower segment. From these, the forces applied to each segment are determined.

Abstract: In the production or stimulation of a well, the length change of a string of tubing caused by temperature and pressure is determined for an inclined well. The weight of each section of the tubing is resolved into the axial component applied to the next successive section. For each of the successive sections the buckling force is determined from the actual force and the axial component of weight. This buckling force is compared to a threshold to determine if buckling occurs. The length change of the tubing between the initial condition and the condition of fluid flow in the tubing caused by the pressure and temperature of the fluid and caused by buckling if it is present is determined. An output indicates the change in length of the tubing and the stress applied to the tubing.

Abstract: Illustrative embodiments of the present invention include methods and apparatus for processing measurements indicative of the dip and azimuth of formation features at various depths in a borehole to produce three-dimensional representations of the formation features. These three-dimensional representations may be in the form of two-dimensional presentations of apparent dip traces for various depths in one or more planes. The apparent dips may be varied with distance from the borehole in accordance with information derived from dips above and below a selected dip. The three-dimensional representations may also take the form of a contour map of a formation surface around the borehold which represents a three-dimensional structural model derived from dips above and below the contoured formation surface.Dip and azimuth variations over a given interval are used to define a family of surfaces in a three-dimensional reference system.