Class / Patent application number | Description | Number of patent applications / Date published |
708442000 | Coordinate conversion | 7 |
20080243984 | Coordinate Transformation For Presentation In Display Systems - A system and method for displaying data provided by a sensor in Polar coordinates on a raster scan device operating in Cartesian coordinates. Cartesian coordinates for display points on said raster scan device are converted to corresponding Polar coordinates, and sensor data values for said Polar coordinates are fetched for display on said raster scan device. The coordinates are converted by differentiating the equations mapping Polar coordinates to Cartesian coordinates, and solving the differential relationships using a suitable integration method. Preferable the integration method is a Midpoint method. In order to avoid divisions and speed up the conversion process, synthetic division in Newton-Ralphson iteration is used instead. | 10-02-2008 |
20090024683 | N-Dimensional Coordinates Conversion - Aspects of the subject matter described herein relate to converting between polar and rectangular coordinates. In aspects, the Nth polar angle is measured upward from the sine-projection of the Nth component in the (N−1)th dimension. The last polar coordinate is zero if and only if the corresponding last rectangular coordinate is zero. The conversion may be applied in any number of dimensions without re-writing the conversion logic. | 01-22-2009 |
20090265407 | Method and System For Determining Altitude, Longitude, and Lattitude From Earth Orthogonal Coordinate System - A method and system for a method and system is provided for transforming geocentric, rectangular coordinates to geodetic coordinates. A meridian plane containing a given point reckoned in geocentric rectangular coordinates is determined, and a line though the given point and normal to a reference ellipsoid of a geodetic coordinate system is determined. An algebraic solution to intersection of the line with the reference ellipsoid is used to determine the coordinates of the point of intersection, which in turn are used to determine the geodetic latitude and altitude of the given point. | 10-22-2009 |
20130013661 | APPARATUS AND METHOD FOR COORDINATE CODING, AND METHOD AND APPARATUS FOR DISTANCE CALCULATION - An apparatus includes a unit dividing a region into blocks having a predetermined bit length and generating addition data having the predetermined bit length corresponding to coordinate data, a unit storing storage data having the predetermined bit length, a unit generating composite data having a bit length twice the length of the predetermined bit length by connecting the addition data to the storage data, and storing the composite data, and a unit repeating an operation of designating the bit length of the composite data as the predetermined bit length, instructing to generate the addition data, and instructing to generate and store the composite data. The number of different bits between a bit string of a location corresponding to the input coordinate data and a bit string of a reference location tends to increase as a distance between the location corresponding to the coordinate data and the reference location increases. | 01-10-2013 |
20140289299 | System and Method for Statistical Process Control - Systems and methods for statistical process control are provided. A computer implemented statistical process control method includes converting a plurality of data points to a plurality of Cartesian coordinate sets, determining a centroid for the plurality of Cartesian coordinate sets, calculating a distance from each of the plurality of Cartesian coordinate sets to the centroid, and establishing an ellipsoidal control zone based on the plurality of distances. | 09-25-2014 |
20150058390 | Storage of Arbitrary Points in N-Space and Retrieval of Subset Thereof Based on a Determinate Distance Interval from an Arbitrary Reference Point - Systems and methods pertaining to nearness calculations of points in n-space. Among the embodiments is associating points of interest with point records in a data store, and efficient retrieval of subsets of those point records which meet arbitrary criteria. Criteria can limit retrieval to neighbors of a reference point (i.e., point records associated with points of interest whose home cells that share at least one interface with another designated home cell). Computationally expensive, at-retrieval range calculations are avoided by performing complimentary calculations at-storage and saving them with related records. The invention is appropriate for use with data storage mechanisms which limit inequality or range operations, or for which such operations result in inefficiencies. When used to model neighboring points on a planetary surface in 3-space, the invention does not suffer from polar distortion (where spherical coordinate systems have difficulty). | 02-26-2015 |
20150134715 | Coordinates Conversion Method Of Conservative Physical Parameters From Latitude-Longitude Coordinates System To Rotated Cubed-Sphere Coordinates System And Hardware Device Performing The Same - A method of converting coordinates of a physical quantity from a latitude-longitude coordinates system to a rotated cubed-sphere coordinates system is disclosed. The method is performed in a hardware device including a computation part and a memory. A plurality of latitude-longitude grid areas which overlap a cubed-sphere grid area is determined. An overlapping area between the cubed-sphere grid area and the latitude-longitude grid areas is computed. | 05-14-2015 |