Quotables
"Flight by machines heavier than air is unpractical and insignificant, if not utterly impossible."
Simon Newcomb, astronomer ; Said in 1902, less than two years before the first flight at Kitty Hawk
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| Number | Title | Issue Date |
| 7174270 | Rotation angle detecting apparatus and method of detecting rotation angle A rotation angle detecting apparatus having a reference signal-generating device that generated a reference signal; a rotation angle detecting section that generated an output signal in response to the reference signal; a feedback control section that determines a r... | 02/06/2007 |
| 6657409 | Control system and method for an automatic door or gate A control system for a door or gate which is movable between an open position and a closed position by an automated operator, comprising a door travel organizer which divides the door travel into a plurality of segments and each segment into a plurality o... | 12/02/2003 |
| 6377109 | Load driver circuit The invention provides a load driver circuit including at least one FET such as MOSFET QX, QY, and QZ, controlled by a control circuit providing gate control voltage to the load driving FET by means of a feedback loop connecting the FET and the control ci... | 04/23/2002 |
| 5990586 | Multi-actuator having position controller Feedback potentiometer-type servoactuator uses the ring gear of a planetary gear system to drive the wiper across a resistive arc of less than 360° where the actuator has a travel of multiple turns. The ring gear is supported by spaced struts in the actu... | 11/23/1999 |
| 4328451 | Device for controlling the electric drive motor of a window raiser in particular in an automobile vehicle The device comprises for each window an electric driving motor and a selector which is adapted to ensure the selective supply of current to the motor, in one direction or the other, through a control circuit acting on a supply source. The supply source is... | 05/04/1982 |
| 4303875 | Device for the remote control of the angular position of an aerial rotor A device for the remote control of the angular position of an aerial rotor comprising a d.c. motor for the rotation of the rotor and a drive circuit adapted to cause the rotation of the motor in one direction when it receives as input a d.c. voltage highe... | 12/01/1981 |
| 3939388 | Self-balancing instrument A multi-range, self-balancing instrument using a Zener diode circuit and a phase compensating circuit is disclosed. The Zener diode circuit is capable of generating a white noise, which is effectively applied to the self-balancing system whereby the dead ... | 02/17/1976 |
