| ReturnTo Theme-Group-Choice | Onelevelup |
| 2F029 | Navigation | |
| G01C21/00 -21/24;23/00-25/00 | ||
| G01C21/00@A-21/00@H;21/00@N;21/00@Z;21/04;21/10;21/14;21/16;21/16@N;21/18;21/20;21/22 | AA | AA00 APPLICATIONS |
AA01 | AA02 | AA03 | AA04 | AA05 | AA07 | AA08 | |||
| . For vehicles | . . For automobiles | . . For railroads | . . For ships | . . For aircraft | . For animals (including persons) | . Others (e.g., work vehicles, excavators) | ||||||
| AB | AB00 NAVIGATING METHODS (NAVIGATIONAL MEASUREMENTS AND METHODS FOR THEIR USE) |
AB01 | AB03 | AB05 | AB07 | AB09 | ||||||
| . Variants that use measurement of the distance and direction (orientation) of movement | . Inertial navigation | . Radio navigation (including wave motion such as by lasers and sound waves) | . . For satellites (i.e., global positioning systems) | . Hybrid navigation | ||||||||
| AB11 | AB12 | AB13 | ||||||||||
| . Others | . . Methods of monitoring navigational problems (i.e., safety) | . . Methods of determining ship (navigation) routes and guidance | ||||||||||
| AC | AC00 NAVIGATING INFORMATION AND DISPLAY THEREOF |
AC01 | AC02 | AC03 | AC04 | AC05 | AC06 | AC08 | AC09 | |||
| . Distance (one-dimensional position) | . Two-dimensional position | . Three-dimensional position | . Bearing (direction) | . . Multi-dimensional bearing | . Variants using time as an element | . Navigation trails, navigation routes | . Interdependence between a navigating body and its destination (point) | |||||
| AC11 | AC12 | AC13 | AC14 | AC16 | AC17 | AC18 | AC19 | AC20 | ||||
| . Other navigating information | . . Within the navigating body | . . Outside the navigating body | . . . Maps | . Display, indication | . . Digital (i.e., numeric values) | . . Using sound | . . Others | . Recording | ||||
| AD | AD00 CORRECTION, COMPENSATION, CONVERSION OF UNIT SYSTEMS AND THE LIKE |
AD01 | AD02 | AD03 | AD04 | AD05 | AD07 | AD08 | ||||
| . Correction (modification), compensation | . . Of systematic error | . . . Variants where the cause of error is indicated | . . Fixed-point calibration | . . Others | . Conversion of unit systems | . . Between multi-dimensional unit systems (coordinate systems) |