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An aircraft having vertical takeoff and landing capability provided with at least first and second laterally extending paddle wheels rotatable on a central axis perpendicular to the longitudinal axis of the aircraft fuselage and between its nose and tail.
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| Application No. | Application Title | Issue Date |
| 20100182874 | METHOD AND DEVICE FOR DETECTION OF SURROUNDINGS In a method and a device for detecting the surroundings, carrier waves in the form of transmission pulses are transmitted by at least one transducer, and reflections of the pulses are detected by the pulse-echo method. In this manner, the successive transmission pulses ... | 07/22/2010 |
| 20070291591 | High-resolution ultrasound displacement measurement apparatus and method An ultrasound method of measuring displacement with high resolution includes transmitting a pair of Golay's complementary sequences or other complementary sequences, receiving echoes from the object and performing pulse compression of the two sequences of echoes. The di... | 12/20/2007 |
| 20070165488 | Method and apparatus for spread spectrum distance and velocity profile measurement A method and apparatus for spread spectrum distance and for spread spectrum velocity profile measurement is provided where the short pulse of traditional ultrasonic and radar level gauges is replaced by low peak power direct sequence spread spectrum (DSSS) modulated ene... | 07/19/2007 |
| 20060023571 | Distance measurement method and device A distance can be measured with high resolution. A frequency controller (7) controls a voltage control oscillator (2) so as to change a signal source frequency f in a range containing two center frequencies f1 and f2 and transmits it as a tra... | 02/02/2006 |
