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Class Information
Number: 342/121
Name: Communications: directive radio wave systems and devices (e.g., radar, radio navigation) > Determining distance > Altimeter > With additional indicator
Description: Subject matter including means to display information in addition to altitude.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7576684 |
Integrated attitude altimeter |
Aug. 18, 2009 |
| 7446697 |
Method and system for calibrating radar altimeters |
Nov. 4, 2008 |
| 7409293 |
Methods and systems for enhancing accuracy of terrain aided navigation systems |
Aug. 5, 2008 |
| 7295150 |
Methods and systems for identifying high-quality phase angle measurements in an interferometric radar system |
Nov. 13, 2007 |
| 7295151 |
Systems and methods for self-test of a radar altimeter |
Nov. 13, 2007 |
| 7248342 |
Three-dimension imaging lidar |
Jul. 24, 2007 |
| 7248208 |
Methods and systems for maintaining a position during hovering operations |
Jul. 24, 2007 |
| 7161527 |
Navigation system |
Jan. 9, 2007 |
| 7138940 |
Method and systems for automatic zero calibration of radar altimeters |
Nov. 21, 2006 |
| 7057549 |
Method and apparatus for predictive altitude display |
Jun. 6, 2006 |
| 7009553 |
Device and method for alert and density altitude features in a transponder |
Mar. 7, 2006 |
| 6885334 |
Methods and systems for detecting forward obstacles |
Apr. 26, 2005 |
| 6750807 |
Radar altimeter with forward obstacle avoidance capabilities |
Jun. 15, 2004 |
| 6731236 |
Methods and apparatus for optimizing interferometric radar altimeter cross track accuracy |
May. 4, 2004 |
| 6593875 |
Site-specific doppler navigation system for back-up and verification of GPS |
Jul. 15, 2003 |
| 6362776 |
Precision radar altimeter with terrain feature coordinate location capability |
Mar. 26, 2002 |
| 6204779 |
Combined altitude and height-above-ground indicator for an aircraft |
Mar. 20, 2001 |
| 5923283 |
Altimetric type measurement method for use on a satellite |
Jul. 13, 1999 |
| 5736957 |
Delay compensated doppler radar altimeter |
Apr. 7, 1998 |
| 5719582 |
Software/hardware digital signal processing (DSP) altimeter |
Feb. 17, 1998 |
| 5410317 |
Terrain clearance generator |
Apr. 25, 1995 |
| 5136301 |
Primary flight display system having a vertical linear altimeter |
Aug. 4, 1992 |
| 5109230 |
Method for aircraft velocity error detection with a Doppler radar |
Apr. 28, 1992 |
| 5047779 |
Aircraft radar altimeter with multiple target tracking capability |
Sep. 10, 1991 |
| 4894659 |
Radar altimeter systems |
Jan. 16, 1990 |
| 4174520 |
Radar altimeter for tropical areas |
Nov. 13, 1979 |
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