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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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| Number | Title | Issue Date |
| 4939451 | Wide dynamic range a.c. current sensor Various combinations of three elements are disclosed for use in accurate measurement of power through current measurement over a wide dynamic range, namely, a current shunt which is preferably an isothermal current shunt, a current transformer, which is p... | 07/03/1990 |
| 4903261 | Synchronous packet voice/data communication system A packet communications network and apparatus for communicating information in voice and data packets transmits and receives voice and data in accordance with standardized frames of a standardized communications format such as a standard DS-1 type trunk. ... | 02/20/1990 |
| 4835463 | Wide dynamic range a.c. current sensor Various combinations of three elements are disclosed for use in accurate measurement of power through current measurement over a wide dynamic range, namely, a current shunt which is preferably an isothermal current shunt, a current transformer, which is p... | 05/30/1989 |
| 4819228 | Synchronous packet voice/data communication system A packet communications network and apparatus for communicating information in voice and data packets transmits and receives voice and data in accordance with standardized frames of a standardized communications format such as a standard DS-1 type trunk. ... | 04/04/1989 |
| 4771425 | Synchoronous packet voice/data communication system A packet communications network and apparatus for communicating information in voice and data packets transmits and receives voice and data in accordance with standardized frames of a standardized communications format such as a standard DS-1 type trunk. ... | 09/13/1988 |
| 4509073 | Two-way cable-television system A two-way (interactive) cable television system is disclosed which has distributed processing and which employs a cable-distribution subsystem that includes corrective regenerators each of which ignores noise (invalid signals) and, when overloaded, ignore... | 04/02/1985 |
| 4455651 | Satellite communications system and apparatus A satellite communications system, which is inherently power limited, employing spread spectrum techniques in order to trade-off bandwidth for small ground station antennas. In a one-way system embodiment a central station transmits data to a satellite fo... | 06/19/1984 |
| 4438511 | Packetized ensemble modem A high speed digital data modem particularly suited for use on a dial up telephone line is disclosed. For the transmit ensemble, the telephone passband is divided into sixty-four sub-bands each with a carrier located approximately in the center of each su... | 03/20/1984 |
| 4195937 | Electroresistive printing apparatus An electroresistive printing or writing system in which a long lasting balanced erosion rate electrode head is transported in relation to a front surface conducting writing receiver media held in a defined path between a resilient flat platen and a path r... | 04/01/1980 |
