Patent number 8554478 is assigned to
The following quote was obtained by the news editors from the background information supplied by the inventors: "The ability to determine a location of a moving vehicle within an area has many applications. For example, the use of Global Positioning Systems (GPS) to determine the location of a vehicle on a map has become common place. The ability to traverse through an area without human intervention is also desired. For example, operator-less vehicles for lawn mowing operations, mining truck operations or any activity where you have a relatively repetitive travel pattern would be useful. The use GPS, however, has some limitations. For example, GPS signals may not available in the desired locations where visibility of satellites is impossible.
"For the reasons stated above and for other reasons stated below which will become apparent to those skilled in the art upon reading and understanding the present specification, there is a need in the art for an efficient and effective method of determining a location of a vehicle as it traverses through an area."
In addition to the background information obtained for this patent, VerticalNews journalists also obtained the inventor's summary information for this patent: "The above-mentioned problems of current systems are addressed by embodiments of the present invention and will be understood by reading and studying the following specification. The following summary is made by way of example and not by way of limitation. It is merely provided to aid the reader in understanding some of the aspects of the invention. In one embodiment, method of navigating with the use of correlation within a select area is provided. The method includes, storing data required to reconstruct ranges and associated angles to objects along with statistical accuracy information while initially traversing throughout the select area. Measuring then current ranges and associated angles to the objects during a subsequent traversal throughout the select area. Correlating the then current ranges and associated angles to the objects to reconstructed ranges and associated angles to the objects from the stored data. Determining at least one of then current location and heading estimates within the select area based at least in part on the correlation and using the least one of the then current location and heading estimates for navigation."
URL and more information on this patent, see: Hartman, Randolph G.. Correlation Position Determination. U.S. Patent Number 8554478, filed
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