| Patents for G01S 11 - Systems for determining distance or velocity not using reflection or reradiation (4,179) |
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| 03/30/1991 | CA2026342A1 Sonic direction locating system |
| 03/26/1991 | US5001985 Sensor system |
| 03/07/1991 | DE4020758A1 Measuring object distance using natural radiation emission - involves comparing intensities of measurement and reference beams, e.g. for autofocussing chambers |
| 03/07/1991 | DE3834036A1 Abstandsmessgeraet Distance measuring |
| 02/26/1991 | US4996473 Microburst/windshear warning system |
| 02/21/1991 | WO1991001778A1 Process and device for determining the optimal training speed for throwing, shooting or passing in throwing sports or ball games |
| 02/13/1991 | EP0412248A2 Method for the passive determination of target data |
| 02/05/1991 | US4991148 Acoustic digitizing system |
| 01/29/1991 | US4988189 Passive ranging system especially for use with an electro-optical imaging system |
| 01/22/1991 | US4987357 Adaptive motor vehicle cruise control |
| 01/22/1991 | CA1279391C Passive ranging method and apparatus |
| 01/09/1991 | EP0407300A1 On board electronic anti-collision device for a vehicle |
| 01/02/1991 | EP0406070A1 Safety system for an engine in particular for an earth moving machine |
| 12/04/1990 | US4975886 Sound source |
| 11/29/1990 | WO1990014605A1 Microburst/windshear warning system |
| 11/28/1990 | EP0399860A1 Method for determining the movement of a target in underwater acoustic |
| 11/20/1990 | US4972195 Interferometric lightning ranging system |
| 11/13/1990 | US4970523 Differential doppler velocity GPS receiver |
| 11/13/1990 | US4969735 Passive range finding apparatus utilizing television sensors |
| 10/31/1990 | EP0395613A1 Laser-warning method and laser warning arrangement |
| 10/10/1990 | CN1009964B 先进的仪表着陆系统 Advanced Instrument Landing System |
| 10/04/1990 | DE3910537A1 Method for collision avoidance in systems with driverless vehicles and vehicle equipment for vehicles for carrying out the method |
| 10/03/1990 | EP0389972A2 Differential doppler velocity GPS receiver |
| 09/26/1990 | EP0388409A1 A device for the screening in the fog with 100 to 7000 micron electromagnetic waves and microcell screen |
| 09/25/1990 | CA1274584A1 Phase measurements using pseudo-random code |
| 09/13/1990 | DE4006989A1 Distance measuring unit from following to leading vehicle |
| 08/23/1990 | DE3904914A1 Method and device for error reduction in the measurement of three-dimensional movement of measurement points, by means of ultrasound signals |
| 08/08/1990 | EP0380797A1 IR sensor for motor vehicle rear light recognition |
| 08/01/1990 | EP0380390A2 Programmable and autonomous mine fuze |
| 07/25/1990 | EP0379425A1 System for determining the position of at least one target by means of triangulation |
| 07/17/1990 | US4942533 Mobile range finder |
| 07/17/1990 | US4942404 Passive doppler differential ranging system and method |
| 07/03/1990 | US4939701 Method and apparatus for error reduction when measuring movement in space of test points by means of ultrasonic signals |
| 06/20/1990 | EP0373979A1 Method to estimate the distance between a fixed object and a moving vehicle and device for carrying out this method |
| 06/19/1990 | US4934477 Automatic control device for preventing rear-end collision of motorized vehicles |
| 06/19/1990 | CA1270551A1 Methods of and apparatus for measuring time of arrival of remote loran-c and related signals and effective time of transmission of local signals at transmitter sites |
| 06/12/1990 | US4933916 Phase measurements using pseudo-random code |
| 06/05/1990 | US4931937 Distance detector mounted on vehicle |
| 05/29/1990 | US4929958 High precision radar detection system and method |
| 05/22/1990 | US4926693 Contactless actuator piston proximity sensor |
| 05/15/1990 | US4926346 Road image input system for vehicle control |
| 05/15/1990 | US4926050 Scanning laser based system and method for measurement of distance to a target |
| 05/09/1990 | CN1007934B Method of and apparatus for measuring time of arrival of remote loran-c and related signals and effective time of transmission of local signals at transmitter sites |
| 05/03/1990 | DE3927851A1 Moving object spatial position detector and guide - has electro=optical system detecting lights on aircraft steering, guidance computer and radio link for automatic landing |
| 04/26/1990 | DE3835656A1 Method for correction of the detonation time of a projectile which is fired from a weapon barrel, and a circuit arrangement for carrying out the method |
| 04/26/1990 | DE3835655A1 Method for correction of the detonation point of a projectile |
| 04/17/1990 | US4918609 Satellite-based position-determining system |
| 04/17/1990 | US4918442 Airplane collision avoidance system |
| 04/17/1990 | US4917488 Photocell distance measurement |
| 04/10/1990 | US4916302 Apparatus for and method of measuring distances to objects present in a plurality of directions |
| 04/03/1990 | US4914298 Infrared detector with direction identification capability |
| 03/28/1990 | EP0359767A1 Locating process for localizing unknown receiver or transmitter positions. |
| 03/27/1990 | US4911548 Determination of one or more spatial parameters of an object |
| 03/20/1990 | US4910719 Passive sound telemetry method |
| 02/27/1990 | CA1266316A1 Digital circuit for correcting phase shift of digital signal |
| 02/20/1990 | CA1266126A1 Deviation measurement system |
| 02/14/1990 | EP0165921B1 Electronic navigation method and system |
| 01/30/1990 | US4897823 Method for location of shocks with a structure-borne sound monitoring system, in particular in pressurized enclosures in power plants |
| 12/28/1989 | DE3820883A1 Apparatus and device for determining the piston stroke in hydraulic cylinders, with the aid of ultrasound |
| 12/05/1989 | US4885725 Position measuring apparatus and method |
| 11/22/1989 | CN1037399A Method and device in antenna and receiving system of radio theodolite |
| 11/16/1989 | WO1989011139A1 A device for the screening in the fog with 100 to 7000 micron electromagnetic waves and microcell screen |
| 11/02/1989 | EP0339242A2 Method and device in the antenna and receiving system of a radio theodolite |
| 10/03/1989 | US4872051 Collision avoidance alarm system |
| 09/26/1989 | CA1260120A1 Apparatus for and method of doppler searching in a digital gps receiver |
| 09/20/1989 | EP0333459A2 Apparatus and method for position reporting |
| 09/14/1989 | DE3806849A1 Distance measurement system for non-touching (contact-free) distance measurement |
| 09/13/1989 | CN1035562A Geodetic ground telemetering draughting instrument |
| 09/12/1989 | US4866450 Advanced instrument landing system |
| 09/06/1989 | EP0331353A2 Detecting change in location of a moving source of electromagnetic radiation |
| 08/15/1989 | US4857840 Information and guiding system including a portable receiver device having an electromagnetic wave antenna and magnetic field sensor |
| 08/09/1989 | EP0327447A1 Radio navigation system |
| 08/03/1989 | DE3802235A1 Method and device for determining the speed, direction and location of a body |
| 07/27/1989 | WO1989006623A1 Apparatus and method for tracking a rotating blade to determine parameters associated with the rotation of that blade |
| 07/05/1989 | EP0322502A2 Apparatus for determining target data |
| 06/27/1989 | US4843565 Range determination method and apparatus |
| 05/03/1989 | DE3837229A1 Sensor system for a weapon |
| 05/02/1989 | US4827414 Monitoring system and method for nuclear weapons effects detection and damage assessment |
| 03/28/1989 | US4817113 Range estimation using floating reference points |
| 03/21/1989 | US4814772 Method and apparatus for precisely measuring relative velocity in an interferometric radiometer |
| 03/21/1989 | US4813877 Remote strafe scoring system |
| 03/08/1989 | EP0305780A1 Method and apparatus for error reduction in the measurement of the spatial movement of points to be measured by means of ultrasonic signals |
| 03/07/1989 | US4811250 Deviation measurement system |
| 02/07/1989 | US4803645 Method and apparatus for measuring coordinates |
| 02/07/1989 | US4803631 Doppler-adaptive filter for non-zero mean dropout noise |
| 01/31/1989 | US4801942 Interferometeric lightning ranging system |
| 01/10/1989 | US4797677 Method and apparatus for deriving pseudo range from earth-orbiting satellites |
| 12/15/1988 | DE3719179C1 Arrangement for determining the separation between vehicles moving one behind the other |
| 12/13/1988 | US4791422 Methods of and apparatus for measuring time of arrival of remote Loran-C and related signals and effective time of transmission of local signals at transmitter sites |
| 12/01/1988 | WO1988009515A1 Locating process for localizing unknown receiver or transmitter positions |
| 11/29/1988 | US4788548 Phase measurement ranging |
| 11/15/1988 | US4785463 Digital global positioning system receiver |
| 10/26/1988 | EP0288374A1 Passive telemetry method using sound |
| 10/12/1988 | EP0285961A1 Infrared detector |
| 09/13/1988 | US4771290 Range measurement method and apparatus having scanning interferometers and range signal processor |
| 08/25/1988 | DE3702743A1 Rangefinder |
| 08/24/1988 | EP0279184A1 Impact localising method using an acoustic emission monitoring system, in particular for pressure-retaining boundaries in power plants |
| 08/18/1988 | DE3215479A1 Method for determining time intervals |
| 08/16/1988 | CA1240782A1 Method for locating an on-bottom seismic cable |
| 08/03/1988 | EP0276909A1 Photocell distance measurement method and apparatus |