| Patents for G01C 21 - Navigation; Navigational instruments not provided for in groups (52,650) |
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| 03/30/1988 | EP0261404A1 Navigation device for a vehicle |
| 03/29/1988 | US4734863 Apparatus for generating a heading signal for a land vehicle |
| 03/29/1988 | US4734702 Passive ranging method and apparatus |
| 03/23/1988 | EP0242396A4 Synchronous fm digital detector. |
| 03/22/1988 | US4733356 Control device for a vehicle route guidance system |
| 03/22/1988 | CA1234417A1 System for alerting a pilot of a dangerous flight profile during low level maneuvering |
| 03/15/1988 | US4731613 Positioning system for a vehicle |
| 03/15/1988 | US4731526 Process for picking up navigation data |
| 03/15/1988 | CA1234216A1 Method for navigating vehicles, particularly land vehicles |
| 03/01/1988 | US4728951 Vertical windshear detection for aircraft |
| 03/01/1988 | US4728926 Apparatus enabling the identification of a periodic composite signal made up of a train of elementary signals |
| 03/01/1988 | CA1233341A1 Marine instrument |
| 02/25/1988 | WO1988001409A1 Distributed kalman filter |
| 02/25/1988 | WO1988001389A1 Spacecraft accelerometer auto-alignment |
| 02/18/1988 | DE3718189A1 Inertial navigation system, preferably for surveying purposes |
| 02/16/1988 | US4725957 Process for correcting angle errors in an electronic compass in vehicles |
| 02/11/1988 | WO1988001080A1 Assembly of elements for the remote reading of identification marks on a substrate |
| 02/02/1988 | US4723218 Navigator for automotive vehicles |
| 01/28/1988 | WO1988000748A1 Ground proximity warning system for an excessive descent rate over undulating terrain |
| 01/28/1988 | WO1988000734A1 Terrain map memory matrixing |
| 01/27/1988 | EP0253816A1 Navigation process for vehicles. |
| 01/26/1988 | US4720921 Navigational instrument |
| 01/14/1988 | DE3720431A1 Parallel rule |
| 01/07/1988 | EP0251565A2 Autopilot controller for marine vessels |
| 01/07/1988 | EP0251157A2 Inertial sensor arrangement |
| 01/06/1988 | CN87103730A Onboard automobile radar and the under-road-surface thin metal wire guidance |
| 12/23/1987 | EP0249666A2 Satellite camera image navigation |
| 12/15/1987 | US4713767 Apparatus for calculating position of vehicle |
| 12/08/1987 | US4711125 Inertial measurement unit |
| 12/03/1987 | WO1987007403A1 Guiding apparatus for unmanned movable bodies |
| 12/02/1987 | EP0247265A2 Star sightings by satellite for image navigation |
| 12/01/1987 | US4710619 Apparatus for generating a signal providing information regarding a radiating source, especially an infrared source |
| 11/25/1987 | EP0246886A1 Method of and apparatus for locating a discrete inground boring device |
| 11/25/1987 | EP0246452A2 Computerized trip planner and automotive navigator |
| 11/25/1987 | EP0246348A1 Arrangement for controlling and stabilizing the attitude of an aircraft by which triple redundancy for at least two axes in space is achieved |
| 11/19/1987 | WO1987007013A1 Navigation aids |
| 11/19/1987 | WO1987007012A1 Automatic orientation device for walkers and the blind |
| 11/19/1987 | EP0245562A2 Spacecraft camera image registration |
| 11/19/1987 | EP0245467A1 Inertial measurement unit |
| 11/17/1987 | CA1229413A1 Inertial reference system |
| 11/10/1987 | US4706233 Control system for record changer apparatus |
| 11/10/1987 | US4706199 Moving map display providing various shaded regions per altitude for aircraft navigation |
| 11/04/1987 | EP0244091A2 Navigation mode selection apparatus |
| 11/04/1987 | EP0050668B1 Inertial instrument with a temporally digitized rebalance network |
| 10/28/1987 | EP0242396A1 Synchronous fm digital detector. |
| 10/27/1987 | US4703167 Star scanner with semiconductor photosensitive elements having reticles |
| 10/21/1987 | EP0242050A1 Apparatus for displaying travel path |
| 10/13/1987 | US4700307 Feature navigation system and method |
| 10/13/1987 | US4698912 Magnetic compass calibration |
| 10/08/1987 | WO1987006044A1 Warning system for tactical aircraft |
| 10/08/1987 | WO1987006043A1 Wind shear detector head-up display system |
| 10/06/1987 | US4698635 Radar guidance system |
| 09/29/1987 | US4696112 Bore hole navigator |
| 09/29/1987 | US4696109 Satellite locator |
| 09/23/1987 | EP0237714A1 Low altitude flying method for automatically finding the flight path |
| 09/23/1987 | EP0237531A1 Device for measuring the distance and direction of destinations on road maps |
| 09/16/1987 | EP0237223A1 Passive ranging method and apparatus |
| 09/15/1987 | US4693114 Gyrocompass navigation system for land vehicles |
| 09/10/1987 | DE3607686A1 Navigation method for vehicles |
| 09/09/1987 | EP0235964A2 Method and apparatus for flight guidance for an aircraft in windshear |
| 09/09/1987 | EP0235963A2 Vertical windshear detection for aircraft |
| 09/09/1987 | EP0235594A2 Apparatus and method for real time reconstruction of digital map data |
| 09/09/1987 | EP0235326A1 Navigation method |
| 09/09/1987 | CN86208268U Automatic helm controller with an automatic course-tracking magnetic compass |
| 09/08/1987 | US4692765 Adaptive learning controller for synthetic aperture radar |
| 09/02/1987 | EP0234237A1 Low altitude flying method for automatically determining the flight path |
| 09/02/1987 | EP0233941A1 Ground proximity warning system for use with aircraft having degraded performance. |
| 09/01/1987 | CA1226355A1 Method and system for determining position using signals from satellites |
| 08/25/1987 | US4689747 Vehicle navigational apparatus for displaying a road map |
| 08/18/1987 | US4688244 Integrated cargo security system |
| 08/18/1987 | US4688176 Navigator for use aboard a vehicle |
| 08/18/1987 | US4688092 Satellite camera image navigation |
| 08/18/1987 | US4688091 Spacecraft camera image registration |
| 08/05/1987 | EP0230480A1 Procedure for setting up and keeping up to date datafiles for road traffic |
| 07/30/1987 | DE3602061A1 Method for registering navigation data |
| 07/22/1987 | EP0229468A2 Magnetic flux detector correction system |
| 07/21/1987 | US4680866 Magnetic flux detector correction system |
| 07/16/1987 | DE3600763A1 Inertial sensor system for navigation and flight guidance |
| 07/15/1987 | EP0170655B1 System for introducing by reflection additional information into binoculars |
| 07/14/1987 | US4680718 Method and apparatus of determining an attitude of a satellite |
| 07/14/1987 | US4680715 Method for navigating vehicles, particularly land vehicles |
| 07/14/1987 | US4680521 Stabilization aid for a vehicle-or vessel-borne search unit |
| 07/14/1987 | US4679753 Surveying satellite incorporating star-sensing attitude determination subsystem |
| 07/07/1987 | US4679147 Navigation system with capability of instructing running direction |
| 07/07/1987 | US4679047 Terminal-guidance or position-adjustment system for aircraft using distance and angle measurements |
| 07/06/1987 | EP0217852A4 Aircraft terrain closure warning system with descent rate based envelope modification. |
| 07/06/1987 | EP0215115A4 Aircraft terrain warning system with configuration modified warning and improved mode switching. |
| 07/06/1987 | EP0214272A4 Altitude loss after take-off warning system utilizing time and altitude. |
| 07/01/1987 | EP0226653A1 Method to determine heading by using and automatically calibrating a 3-axis magnetometer rigidly fitted in an aircraft |
| 06/30/1987 | US4677563 Automotive navigation system |
| 06/30/1987 | US4677562 Automotive navigation system |
| 06/30/1987 | US4677561 Automotive navigation system |
| 06/30/1987 | US4677450 Automotive navigation system |
| 06/23/1987 | US4675822 Doppler-inertial data loop for navigation system |
| 06/23/1987 | US4675820 Inertial reference system |
| 06/23/1987 | US4675676 Map display system |
| 06/23/1987 | US4674715 Measuring arrangement for determining the attitude of an earth satellite |
| 06/23/1987 | CA1223356A1 Vehicle navigational system and method |
| 06/18/1987 | WO1987003718A1 Procedure for setting up and keeping up-to-date datafiles for road traffic |
| 06/16/1987 | US4674051 Navigation point locating system |