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| Number | Title | Issue Date |
| 8131415 | Method and apparatus for automatic vehicle guidance using continuous 2-D poly-point path A method for using an arbitrary shape 2-D poly-point path for an automatic vehicle guidance comprising the steps of: (A) determining a set of 2-D reference points; (B) selecting a set of 2-D interpolating curves to fit the set of 2-D reference points, wherein each 2... | 03/06/2012 |
| 7477184 | 3-D positioning system utilizing self-positioning radio transmitter and stationary laser transmitter A radio and light based 3-D positioning system comprising a stationary self-positioning radio (pseudolite) transceiver, a stationary laser transmitter positioned in a location with known coordinates, and at least one mobile integrated radio receiver (pseudolite)/las... | 01/13/2009 |
