| HONEYWELL Patent applications |
| Patent application number | Title | Published |
|---|
| 20100014092 | GYROSCOPE MODE SHIFT DETECTION AND SCALE FACTOR COMPENSATION - A method for maintaining measurement accuracy of a ring laser gyroscope is disclosed. The method involves periodically measuring a path length control voltage in the ring laser gyroscope over a prescribed temperature range. When a first path length controlled by the path length control voltage deviates at least one wavelength from a nominal path length, the method detects the change in the path length as a mode shift. For each mode shift, the method applies a path length correction to maintain the first path length at a target path length over the prescribed temperature range. The method can apply a correction to a measurement signal output of the ring laser gyroscope by adjusting a calibrated scale factor depending on an actual integer number of wavelengths achieved during a mode shift. | 01-21-2010 |
| 20090279741 | METHOD AND APPARATUS FOR VISION BASED MOTION DETERMINATION - A method for determining motion is provided. The method determines a rotation of an object from a first time to a second time by analyzing a first 2D image obtained at the first time and a second 2D image obtained at the second time. Then, the method determines a translation of the object from the first time to the second time based on the determined rotation, 3D information relating to the first image, and 3D information relating to the second image. | 11-12-2009 |
