Patent ID: 7382290
Filing Date: 2008-06-03
Classification: G09B

Abstract:
1. The process of creating a map overlay that is overlaid onto an area of interest that includes a point of interest, said process comprising: defining an area of interest by determining North, South, East and West boundaries; defining an origin having a location that is at least on a boundary that defines the area of interest; creating a grid system having a first plurality of grids represented by two sets of characters, each set of characters comprising from one to four characters, a value of each character corresponding to a value from 1 to 35; determining whether a point of reference lies within the defined area of interest by first determining whether a latitude of the point of interest is between the North and South boundaries of the area of interest and then determining whether a longitude of the point of interest is between the East and West boundaries of the area of interest; converting the Latitude of the point of interest into a percentage by creating a first variable, Temp creating a second variable, Temp determining a value of a first character in a first set of characters that represents a location code by defining the first character as being equal to an integer value of Temp converting the Longitude of the point of interest into a percentage by creating a third variable, Temp creating a fourth variable, Temp determining a value of a first character in a second set of characters that represents the location code by defining the first character of the second set as being equal to an integer value of Temp