116results about How to "The detection position is accurate" patented technology

An electro-optical device includes: an electro-optical panel having a first substrate, a second substrate, and an electro-optical substance interposed between the first and the second substrates; a third substrate arranged on the second substrate; a fourth substrate having a flexibility and arranged on the third substrate via a spacer; a position detector provided on the third substrate and detecting a pressed position on the fourth substrate based on changes in surface waves generated on the third substrate; and a resin film provided on the fourth substrate and opposed to the third substrate.

The ink cartridge has a first detection target portion for detecting ink level and a second detection target portion for identifying the type of an ink cartridge. The ink level detection device uses an optical sensor to scan the first and second detection target portions of the ink cartridge, and detects ink level and the type of the ink cartridge, that is, whether the ink cartridge is containing standard amount of ink or large amount of ink. Therefore, the number of image formation on recording media can be estimated, and failure in image formation due to a shortage of ink in the middle of image formation can be inhibited.

A touch panel display device includes a liquid crystal panel to display an image by regulating transmittance of light supplied from a back light unit, and a touch sensing part provided on upper edges of the liquid crystal panel in order to detect a position touched by a user or an object. The touch sensing part includes infrared lamps to generate and emit infrared light, infrared light reflecting tubes mounted with the infrared lamps, and image sensors to sense the infrared light output from the light output regions of the infrared light reflecting tubes. Each of the infrared light reflecting tubes has light output regions and non-output regions evenly formed at a surface facing an upper surface of the liquid crystal panel so that the infrared light emitted from the infrared lamps is evenly irradiated on the upper surface of the liquid crystal panel.

A touch panel using an optical sensor has a simple construction and can accurately detect an input position. An illuminating lights emitted from illuminating means are turned into lights having a high directivity in an X-axis direction and in a Y-axis direction of the prism lens sheet and thereafter enter from side faces of a light guide panel as incident lights. The incident lights advance in the inside of the light guide panel toward opposite side faces while being subjected to a total reflection and are received by the optical sensor arrays. When an input pen or a fingertip touches a surface of the light guide panel, the lights are refracted or absorbed at a touched position and hence, a quantity of received lights at the optical sensor arrays is reduced.

A digital camera includes a position sensor which detects a position of the camera body relative to the direction of gravity, an acceleration sensor which detects an acceleration acted upon the camera body, a memory in which image data of a captured image is recorded, and a controller. If the magnitude of the acceleration detected by the acceleration sensor when the captured image is produced is smaller than a predetermined value, the controller records the image data in the memory together with positional data of the camera body that is detected by the position sensor. If the magnitude of the acceleration detected by the acceleration sensor when the captured image is produced is equal to or greater than the predetermined value, the controller deems the data on the position of the camera body as invalid data and records only the image data in the memory.

A magnetic sensor for an encoder has a sliding surface and detects magnetic field by keeping the sliding surface in contact with a surface of a magnetic medium to which a magnetic pattern with a predetermined magnetization pitch is recorded. The magnetic sensor includes a plurality of MR elements laminated with each other in a direction parallel to a direction of the magnetization pitch of the magnetic medium. Between two of the MR elements an insulation layer is sandwiched. Each of the MR elements has a plurality of linear sections.

A position detection apparatus and method are provided. The apparatus includes a touchscreen on which an image is displayed, a sensor, and a controller. The sensor includes at least one hall element. The method includes detecting a touch coordinate input into a touch panel through the touchscreen, storing the detected touch coordinate, counting a number of detected touch positions to determine whether a an executing application program permits only a single touch input, and selectively operating the sensor to detect a position of a magnet according to whether the an executing application program permits only the single touch input.

The invention provides a method for detecting a pinhole type growth defect. The method comprises the following steps of: growing a silicon dioxide gate oxide layer on a semiconductor silicon substrate; corroding the gate oxide layer by using mixed solution of nitric acid, hydrofluoric acid and water; forming a hole on the semiconductor silicon substrate below the pinhole type growth defect of the gate oxide layer; flushing the surface of the gate oxide layer by using deionized water, then detecting the hole through an optical microscope and determining the position of the pinhole type growth defect of the gate oxide layer; and finally preparing a sample at the position of the pinhole type growth defect and accurately detecting the position of the pinhole type growth defect. By the method, the pinhole type growth defect of the gate oxide layer can be detected in real time, the sample can be quickly and accurately prepared at the position of the pinhole type growth defect, and the position of the pinhole type growth defect can be precisely detected by a transmission electron microscope.

Upper and lower wire guides in a wire-cut electric discharge machine are moved until a wire electrode contacts with a workpiece, and after the contact, the upper and lower wire guides are moved backward to a position A which is away from the contact point at a fixed distance. Then, the upper wire guide is moved until the wire electrode contacts with the workpiece and the upper wire guide is returned to the position A. Subsequently, the lower wire guide is moved until the wire electrode contacts with the workpiece and the lower wide guide is returned to the position A. A coordinate value on the position where the wire electrode contacts with the workpiece is calculated by using position detection values which are obtained in the above respective steps, and board thickness is calculated from the coordinate value.

A position detection device includes an electromagnetic conversion element and a magnetic field generator. The electromagnetic conversion element is arranged on a given plane. The magnetic field generator is arranged facing one side of the electromagnetic conversion element in a direction vertical to the given plane and generates a magnetic field covering the electromagnetic conversion element. A relative position between the electromagnetic conversion element and the magnetic field generator is detected when a relative displacement parallel to the given plane is made by the electromagnetic conversion element and the magnetic field generator based on an output signal of the electromagnetic conversion element. The magnetic field generator has an opposed face that tilts to the electromagnetic conversion element, and generates the magnetic field from the opposed face.

A position detecting method for detecting a position of an object to be detected using a signal from an image of an alignment mark which consists of plural mark elements formed on the object, comprising the steps of acquiring first position information indicating a center position approximated from a form of the all signals, acquiring plural second position information indicating a center position in the alignment mark calculated from whole inflection points of the signal, and selecting the second position information as a center position in the alignment mark which is in a predetermined distance based on the first position from the plural second position information.

A displacement detecting device comprises: a light source, a first beam splitter adapted to split the light emitted from the light source into a first beam and a second beam, a reflecting member adapted to reflect the first beam, an objective lens adapted to condense the second beam on a surface-to-be-measured, a first light receiving section adapted to receive interference light of the reflected first beam and the reflected second beam, a relative position information output section adapted to output relative position information in height direction of the surface-to-be-measured, a second beam splitter adapted to extract a part of the reflected second beam, an astigmatism generator adapted to generate astigmatism in the extracted second beam, a second light receiving section adapted to receive the second beam having astigmatism, and an absolute position information output section adapted to generate absolute position information in height direction of the surface-to-be-measured.

A position-of-magnetic-pole detecting device includes first and second units for inferring a position of a magnetic pole. The first unit applies a current command while changing an excitation phase, infers a domain, where the position of a magnetic pole lies and which has the width thereof determined with a range of electrical angles, from the direction of rotation in which a motor rotates, and the excitation phase, and reduces the domain so as to infer the position of a magnetic pole. The second unit infers the position of a magnetic pole from a fed-back current returned responsively to a voltage command applied with the excitation phase sequentially changed. Thereafter, a voltage high enough to cause magnetic saturation is applied in order to determine the orientation of a magnetic pole, whereby the position of a magnetic pole is inferred. Although the first unit is selected, if the motor does not move due to friction or the like, the second unit is used to infer the position of a magnetic pole. If the position of a magnetic pole inferred by the second unit differs from one value to another, the first unit is used to infer the position of a magnetic pole.

A pilot reception power measuring section 104 measures reception power of a pilot symbol and a data section reception power prediction section 106 predicts reception power of data symbols based on the reception power of the pilot symbol. A power comparison section 107 calculates a difference between this predicted value and the actual reception power of the data symbol, and when the difference is large, a collision position detection section108 regards the data symbol at the hopping position as colliding with data symbols in other cells. Then, an error correcting decoding section 103 carries out error correcting processing by reducing likelihood of the data symbols detected to be involved in the collision and can thereby improve the error rate characteristic of decoded data.

A radio-wave-transmitting-body position detection system in a vehicle system has a plurality of electronic control devices that are included in a vehicle, and a radio wave transmitting body that transmits a radio signal to the plurality of electronic control devices. The electronic control devices conduct communication with each other using the radio signal. Each electronic control device includes a first electronic control device that conducts communication with the other electronic control device and the radio wave transmitting body using the radio signal, and controls a device included in the vehicle based on a content of the radio signal transmitted from the radio wave transmitting body. The electronic control devices except the first electronic control device include a first transmitting / receiving unit that transmits and receives the radio signal.

A position-of-magnetic-pole detecting device includes first and second units for inferring a position of a magnetic pole. The first unit applies a current command while changing an excitation phase, infers a domain, where the position of a magnetic pole lies and which has the width thereof determined with a range of electrical angles, from the direction of rotation in which a motor rotates, and the excitation phase, and reduces the domain so as to infer the position of a magnetic pole. The second unit infers the position of a magnetic pole from a fed-back current returned responsively to a voltage command applied with the excitation phase sequentially changed. Thereafter, a voltage high enough to cause magnetic saturation is applied in order to determine the orientation of a magnetic pole, whereby the position of a magnetic pole is inferred. Although the first unit is selected, if the motor does not move due to friction or the like, the second unit is used to infer the position of a magnetic pole. If the position of a magnetic pole inferred by the second unit differs from one value to another, the first unit is used to infer the position of a magnetic pole.

An electro-optical device includes: an electro-optical panel having a first substrate, a second substrate, and an electro-optical substance interposed between the first and the second substrates; a third substrate arranged on the second substrate; a fourth substrate having a flexibility and arranged on the third substrate via a spacer; a position detector provided on the third substrate and detecting a pressed position on the fourth substrate based on changes in surface waves generated on the third substrate; and a resin film provided on the fourth substrate and opposed to the third substrate.

The invention provides a method and device for locating partial discharge of a high voltage cable. According to the method for locating the partial discharge of the high voltage cable, firstly, the time difference t generated when a discharge signal emerging in a high voltage cable to be detected is transmitted to the two ends of the high voltage cable to be detected, and then a discharge position x of a discharge source on the high voltage cable is obtained through calculation based on a formula x=vt+1 / 2. Therefore, the position of the partial discharge of the high voltage cable can be detected accurately.

The apparatus in accordance with the present invention detects locations of opposite ends of a running strip in a width-wise direction and heights of the ends. The apparatus includes a first light-source irradiating a light onto a lower surface of a strip, a second light-source perpendicularly irradiating a linear light onto an upper surface of the strip, a camera taking a photo of the strip, and a calculation unit calculating locations of opposite ends of the strip in width-wise and height-wise directions thereof, based on an image resulted from a light irradiated from the first light-source and an image resulted from a light irradiated from the second light-source and reflected at the strip.

Disclosed is a method for detecting an OTDR curve tail end event to locate an optical fibre break point in an online mode, comprising following steps: 1, an OTDR emits detection light to an optical fibre operation link, and receives reflection light to form reflection sampling point data containing tail end event; 2, head end reflection point in sampling point is found out; 3, traversal is carried out to find search region end point; 4, segmented line fitting is carried out in region of [search region end point, head end reflection point] in reversed direction, start point of section of line meeting predetermined condition is used as a search region start point; 5, if absolute value of difference between largest sampling value in search region and sampling value of search region start point is larger than second preset threshold value, tail end event is judged as reflection tail end event.

The present invention provides an image display device allowing accurate detection of a pointed position on a projection image to be achieved. The image display device include: an image light generating section generating image light based on an input video signal; a projecting section projecting the image light onto a screen to form a projection image; a reflection light splitting section splitting part of reflection light of the projection image from the screen to another direction; a light receiving section receiving the split light; an image generating / obtaining section generating a display image from the video signal and obtaining the projection image corresponding to the inputted video signal from the light receiving section; a position detecting section detecting a position pointed out on the projection image as a pointed position based on the display image and the projection image to output information of the pointed position on the projection image.

The invention provides a tab / adhesive tape position detection system and method based on a CCD. The system comprises an optical imaging system and an image processing system, wherein the optical system comprises a CCD camera, an illumination part and an installing part, the CCD camera is arranged on the side of a tab walking track and coincides with the normal direction of a target detecting position, the illumination part corresponds to the CCD camera and is used for providing an illumination environment for work of the CCD camera, and the installing part is connected with the CCD camera andthe illumination part. The method comprises the steps that S1, an image of the target detecting position is acquired and is fed back to the image processing system; S2, the acquired image is preprocessed, then the positions of a tab and an adhesive tape of a cell cell are detected and are compared with corresponding threshold values respectively according to detected relative positions, and judgement is made. The image of the protective adhesive tap bonded on the tab is acquired by utilizing a CCD imaging mode, quick and accurate detection of the adhesive tape position is achieved through processing of the image processing system, and accordingly the quality of the cell cell is ensured.

There is provided a position detection system (1) including a first marker (4) that produces a first alternating magnetic field having a first position-calculating frequency by means of an external power supply; a second marker (3) including a magnetic induction coil (5) having a resonance frequency equal to the position-calculating frequency; a magnetic-field detection section (13) that is disposed outside a working region of the second marker (3) and that detects a magnetic field at the first position-calculating frequency; an extracting section (24) that extracts, from the detected magnetic field, a first detection-magnetic-field component having the first position-calculating frequency and having the same phase as the phase of the first alternating magnetic field; and a position / orientation analyzing section (22) that calculates at least one of the position and the orientation of the first marker (4) based on the intensity of the extracted first detection-magnetic-field component.

The invention discloses a radar target locating method based on multipath utilization, and mainly aims at solving the problem that a radar point target cannot be located accurately in the multipath environment in the prior art. The method is realized by the steps that 1) an emission signal is generated to obtain echo data; 2) the echo data is processed to obtain time of arrival (TOA) of differentpaths; 3) a geometric location model of a radar target is obtained; 4) the obtained TOA of different paths are substituted into the established geometric location model; 5) an initial searching pointis initialized; 6) the geometric location model and the initial searching point are input to a searching function lsqnonlin, and the searching function lsqnonlin is used to obtain an accurate target position by searching; and 7) the target position obtained by searching is expanded to a 3D space. According to the method, multipath information can be utilized effectively, the established geometriclocation model is simple, the cost is lower, the location precision is improved, and the method can be used to locate low-altitude point targets.

An electromagnetic actuator can precisely detect the position of a driven member by detecting a magnetic flux density at a portion where the magnetic flux is condensed. The electromagnetic actuator comprises magnetic flux density detecting means disposed in a gap formed within a magnet flux formation section that is wound by an electromagnetic coil, for detecting a magnetic flux density within the gap; current value detecting means for detecting a current flowing through the electromagnetic coil; and calculating means for calculating a position of a movable member on the basis of the magnetic flux density detected by the magnetic flux density detection means and the current value detected by the current detection means.

The invention provides a display panel detecting device. The device is used for detecting signal lines on a display panel. The signal lines at least comprise multiple data lines, and the data lines are divided into N groups. The display panel detecting device comprises N short-circuiting stripes in a electrode zone of the display panel and a plurality of bonding pads, the bonding pads are arranged on the two sides of the electrode zone, each short-circuiting stripe is used for making a group of the data lines in short connection together, the two ends of each short-circuiting stripe are each connected with one bonding pad, the bonding pads are arranged on the same side of all the short-circuiting stripes, and one switch is arranged between each short-circuiting stripe and the corresponding bonding pads connected with the short-circuiting stripe. The invention further provides a display panel detecting method, by means of the method, the damage location and the damage degree of the polar zone of the display panel can be accurately detected.

The invention relates to an automatic electric leakage detection platform for an electric leakage circuit breaker. The automatic electric leakage detection platform comprises a frame, conveyor belts, a material loading table, a manipulator, a positioning table and a detection fixture, and is characterized in that the conveyor belts, the material loading table, the positioning table and the detection fixture are all arranged in the frame, the positioning table is arranged at the middle of the detection fixture, the two conveyor belts are respectively arranged at two sides of the detection fixture, the material loading table is arranged on the conveyor belts and moves along with the conveyor belts, a guide rail, which is vertical with the conveyor belts, is arranged above the frame, the manipulator is connected to the guide rail and slides thereon, the manipulator grabs an electric leakage circuit breaker on the material loading table above and then moves upward, then the manipulator moves to a position above the positioning table located at the middle of the detection fixture through a transverse moving mechanism and places and positions the electric leakage circuit breaker on the positioning table, and then the detection fixture at both sides moves inward so as to insert detection electrodes into wiring terminals of the electric leakage circuit breaker to carry out detection. The automatic electric leakage detection platform is accurate in detection position, small in error and high in precision.

Provided is a washing machine including: a stator including a coil; a rotor including a plurality of variable magnets each having a magnetic force variable, and rotatable with respect to the stator; a controller configured to control an energizing of the coil to increase or decrease a magnetic force of the variable magnet; and a plurality of position sensors each having a output voltage changed according to a magnetic flux of the variable magnet.