Patent ID: 8179372

Claim:
An electronic display system having a touchscreen overlay sheet on a display device comprising: an input signals generator responsive to a physical touching of a location on the touch screen overlay sheet over a sample period to obtain a plurality of input sample signals; a converter for converting the input sample signals to digital input vectors forming a multidimensional array; code for assigning a weight to each of the digital input vectors with respect to an origin corresponding to a position on the overlay sheet to obtain weighted vectors; code for structuring the weighted vectors in a sorted and searchable order and creating a sort index corresponding to the sorted and searchable order of the weighted vectors; code for storing the weighted vectors in searchable order in a memory with the sort index; code for computing weight of a sample vector; code for computing a context value for a sample vector over a predefined and limited search range, the context value being a result of minimum Weight score; code for iteratively computing minimum weight scores using the context value to establish a location value representative of the location of the physical touching; and code for outputting the location value to an output utilization subsystem for establishing a physical location on the electronic display device.