97results about How to "Accurate coordinates" patented technology

A display device with a touch sensor according to the present invention includes an active matrix substrate 4A and a transparent counter electrode 7. On a first surface of the active matrix substrate, multiple pixel electrodes are arranged in matrix. The transparent counter electrode is opposed to the first surface of the active matrix substrate. The display device further includes a first circuit, a second circuit and a switching circuit. The first circuit supplies a voltage or a current to the transparent counter electrode for display purposes. The second circuit detects currents flowing from a number of points on the transparent counter electrode. And the switching circuit selectively connects electrically one of the first and second circuits to the transparent counter electrode.

An apparatus and method to scan and collect data relative to the position of a moving object. The method includes the calibration, equations, and algorithm needed to compute the surface coordinates of an object. The preferred embodiment of the apparatus includes two light sources and four area array image sensors, one moving device, and one computing device. The device scans the object, generates data, computes the position, and provides a complete measure of the 3D surface coordinates of an object. The methodology includes calibration of a known pattern to the area array image sensor, equations to map the physical points to the image sensor, algorithms to determine a best estimate of the coordinates of occluded points, and techniques to merge the computed coordinates from different sections of the object.

Advertisements or other types of targeted information are delivered to set-top boxes or other user interface devices of a signal distribution system. In one aspect of the invention, a user interface device comprises at least first and second software clients and a video buffer. The first software client receives packets associated with a first media stream, and the second software client receives packets associated with a second media stream containing the targeted information. The first software client delivers at least a portion of the packets associated with the first media stream to the video buffer. The second software client delivers at least a portion of the packets associated with the second media stream to the video buffer while one or more packets of the first media stream are still in the video buffer. The user interface device switches from the first media stream to the second media stream based on timing information which may be received from an external detection server.

A method of determining a deviation of an actual shape from a desired shape of an optical surface (12; 103) includes: providing an incoming electromagnetic measuring wave (20; 113), providing two diffractive structures (47, 49; 145, 146, 141, 143) which are respectively designed to reshape the wavefront of an arriving wave, calibrating one of the two diffractive structures (47, 49; 145, 146, 141, 143) by radiating the incoming measuring wave (20; 113) onto the at least one diffractive structure to be calibrated (47, 49; 145, 146, 141, 143) and determining a calibration deviation of the actual wavefront from a desired wavefront of the measuring wave (20; 113) after interaction of the latter with the at least one diffractive structure to be calibrated (47, 49; 145, 146, 141, 143), positioning the two diffractive structures (47; 49; 145, 146, 141, 143) in the optical path of the incoming measuring wave (20; 113) such that individual rays of the measuring wave radiate through both diffractive structures (47; 49; 145, 146, 141, 143), and reshaping the incoming measuring wave (20; 113) by means of the two diffractive structures (47; 49; 145, 146, 141, 143) to form an adapted measuring wave (64; 114), the wavefront of which is adapted to the desired shape of the optical surface (12; 103), positioning the optical surface (12; 103) in the optical path of the adapted measuring wave (64, 114) so that the adapted measuring wave (64; 114) interacts with the optical surface (12; 103) and measuring the wavefront of the adapted measuring wave (64; 114) after interaction of the latter with the optical surface (12; 103).

The invention relates to a touch screen mapping method based on five point calibration, which uses dynamic ratio to calculate the mapping value from the touch screen coordinate and LCD coordinates according to the different coordinates on the touch screen, to compensate the deformation of trapezium and parallelogram, to resolve the deflection problem of touch points caused by the serious inclination at the horizontal and vertical directions of the touch screen, and uses the coordinates of five points to divide the screen into a plurality of mapping areas one-to-one, to realize accurate coordinates of the touch screen mapped to a LCD screen, to resolve the problem of inaccurate point caused by inaccurate pasting and aging of the touch screen, effectively reduces the problem of traditional algorisms which not consider the fine rotation of the four corner coordinates relative to the center coordinates, to cause the left and right inclination of horizontal strokes and the upper and lower inclination of vertical strokes and resolves the inaccurate point problem of small touch points of small LCD screens (128x160).

Disclosed are a method and a system for detecting a screen area. The method comprises a step of capturing an image including the screen area; a step of obtaining candidate boundaries of the screen area; a step of converting the candidate boundaries into straight lines; a step of carrying out binary image processing with regard to the captured image; a step of obtaining boundary pixels of a maximum target area, and letting the boundary pixels serve as an outline of the maximum target area; a step of selecting straight lines on the outline from the converted straight lines; a step of dividing the selected straight lines into four classes; and a step of obtaining final straight lines by carrying out straight line fitting with regard to straight lines in the respective classes so as to obtain four boundaries of the screen area.

The invention discloses an indoor location non line of sight compensation method and an indoor location method. The compensation method comprises the steps of acquiring base station coordinates of each base station arranged indoor and received signal strength indication of a received signal from each base station; obtaining estimated coordinates of a mobile terminal according to the acquired base station coordinates and received signal strength indication; obtaining an estimation value of a non line of sight error for every two base stations by use of the estimated coordinates of the mobile terminal according to the mobile terminal and a time difference of arrival location model having a specific non line of sight error of the two base stations; and replacing an undetermined non line of sight error with the estimated value of the non line of sight error so as to compensate the time difference of arrival location model. Through adoption of the method, the technical problem that the coordinates of the mobile terminal cannot be resolved due to overlarge time difference of arrival (TDOA) caused by the non line of sight error is solved, and accurate coordinates of the mobile terminal are obtained through non line of sight compensation for the TDOA.

The invention discloses a method for positioning multiple moving targets by a wireless sensor network syncretized with radio frequency identification (WSID), which comprises the following steps of: fixedly deploying WSID nodes at preset positions, electrifying and initiating the WSID nodes; configuring identification (ID) for each node by a base station respectively, establishing a position relation database of all nodes, and sending the ID of all the nodes and the position relation database to each node respectively; sending a data packet for establishing a network to each node by the base station, establishing the network, sending a data packet for establishing a cluster and determining a cluster head, and clustering the network; setting a WSID tag on a moving target, electrifying and initiating the tag, and computing the position coordinates of the moving target by self-correction positioning algorithm by the node and the tag on the moving target once the moving target provided with the tag enters a positioning area; and allowing the tag to send the position information of the moving target to the base station through the node by multi-hop routing, and sending the position information of the moving target to a monitoring terminal through networks such as Internet or GPRS or TD-SCDMA after the base station acquires the position information of the moving target.

A method for the cooking of a cooking product in a cooking appliance with a cooking chamber that comprises at least one heating device, a computer device, a memory device and at least one sensor device, is carried out, in dependence on a degree of cooking of a cooking product and/or of a cooking duration, in particular determined by the core temperature, the browning, the pH value and/or the cooking value, from values measured by the sensor device with consideration of the at least occasionally deposited values in the memory device via the computer device, wherein at least two steps separated from one another in time, comprising a pre-cooking step, which is interrupted when a determined intermediate value of the degree of cooking and/or of the duration of cooking, in particular a determined remaining time for reaching the cooking duration is reached, and a finishing cooking step, in particular a finishing step that is recalled at a later time point in order to end the cooking of the cooking product with consideration of the intermediate value.

To provide an image processing system enabling association of the coordinates of a sensed projected image in a sensing area with the coordinates of the spatial light modulator, a projector is formed of: an image projecting section which projects calibration images; a ratio information generating section which computes a ratio of image signal values or luminance values for each pixel in the sensing area obtained by sensing the calibration images, based on sensed information from a sensor which senses the calibration images, to generate ratio information; an edge point detecting section which searches the ratio information to detect corner points of a sensed projected image for each pixel having a ratio equal to or larger than a predetermined value; a pixel block image information generating section which converts sensed information of an area defined by the detected corner points into pixel block image information representing a ratio of image signal values or luminance values for each pixel block including one or more pixels.

In a method and system for controlling a braking system, equipped with an electric parking brake, for a motor vehicle, the electric parking brake is released in response to an identification of a moving-off operation. A release instant of the electric parking brake is defined in dependence on at least one measured parameter of a clutch engagement operation. In comparison with a method and system in which, for example, the electric parking brake is released in dependence on the actuation of the accelerator by a driver, the method and system permit a more precise coordination of the deactivation of the electric parking brake with the clutch engagement operation, and thus with the moving-off operation of the vehicle, particularly in the case of a vehicle equipped with a manual transmission.

Provided is a method for point cloud data processing and crossover object obtaining of a transmission line. A terrain and ground object information database is established according to actual information of terrain and ground objects in three-dimensional point cloud data; original three-dimensional point cloud data is obtained by utilizing three-dimensional laser scanning; and the ground objects are obtained. On the original basis of not changing the original point cloud data, no modeling rendering processing is performed, spatial information at any point is not changed, he point cloud data of the various ground objects is obtained accurately; and according to concrete requirements of design disciplines, a topographic map suitable for three-dimensional design of a high-voltage transmission line is formed, which is achieved internationally for the first time and is a breakthrough in the technical field of track design.

Advertisements or other types of targeted information are delivered to set-top boxes or other user interface devices of a signal distribution system. In one aspect of the invention, an access node sends a message to the user interface device directing the user interface device to switch from a content stream to a targeted information stream at a specified time. Responsive to the message, the access node receives a request from the user interface device to join a targeted multicast group associated with the targeted information stream. Without requiring receipt of a subsequent request from the user interface device to leave a content multicast group associated with a content stream, the access node causes the user interface device to be dropped from the content multicast group prior to the specified time. The access node then delivers the targeted information stream to the user interface device via the targeted multicast group.

The invention discloses an automatic plugging-in device of a connector pin. The automatic plugging-in device comprises a machine frame, an emptying device, a plugging device, a plurality of terminal conveying devices, a feeding device, a discharging device, a CCD photographing device and a terminal supporting device, wherein the emptying device is fixed to the machine frame, the plugging device is connected with the emptying device in a butted mode, the multiple terminal conveying devices are arranged in front of the plugging device, the feeding device and the discharging device are arranged at the two ends of the terminal conveying devices, the CCD photographing device is arranged on the side of the plugging device, and the terminal supporting device is used for fixing mobile terminals. On the one hand, automatic conveying of other stations can be achieved; on the other hand, the automatic plugging-in device can be connected with a plurality of automatic plugging-in devices in a butted mode, so that the production efficiency is improved exponentially; the feeding device and the discharging device are arranged at the two ends of the terminal conveying devices, so that automatic feeding and discharging are achieved; due to the fact that the CCD photographing device is arranged for photographing, position coordinates of each jack in the terminals are obtained, and precise coordinates are provided for follow-up plugging-in of pins.

A position indicator for use in a pen tablet device includes a coil for emitting a position indicating signal. The coil includes: a first conductive wire wound from a distal end portion thereof to a proximal end portion thereof in a predetermined rotational direction; and a second conductive wire wound from a proximal end portion thereof to a distal end portion thereof in the predetermined rotational direction, wherein the first conductive wire and the second conductive wire are connected to each other at the proximal end portions thereof, and the wound first conductive wire and the wound second conductive wire are disposed alternately adjacent to each other.

The invention provides a robot mapping method and device, a robot and a storage medium. The method comprises the steps that point cloud data obtained through laser radar scanning, positioning data, obtained through a positioning module, of a robot and posture data, obtained through an inertia measurement unit, of the robot are obtained; actual coordinates of each laser point in the point cloud data are obtained based on the positioning data and the posture data; and a first map is generated based on the actual coordinates of each laser point in the point cloud data. According to the robot mapping method provided by the embodiment of the invention, loopback detection is not needed. Besides, the position data of the robot and the posture data of the robot are obtained through the positioningmodule and the inertial measurement unit respectively; compared with the robot position data and posture data reversely determined through the point cloud data, so that the constructed map is more accurate, and the laser mapping mode can be suitable for the outdoor strong light environment.