| Patents for G01C 5 - Measuring height; Measuring distances transverse to line of sight; Levelling between separated points; Surveyors' levels (3,586) |
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| 10/04/2001 | EP1137910A1 Height estimating apparatus |
| 10/02/2001 | US6298287 System and method of compensating for pressure sensor errors and noise in inertial vertical loop data |
| 09/30/2001 | CA2329262A1 System and method for improving the accuracy of pressure altitude determinations in an inertial navigation system |
| 09/27/2001 | WO2001071281A1 Portable gps receiver using a barometric altimeter |
| 09/27/2001 | DE10008769C1 Processing signal for digital levelling gauge, using only pixel data provided by sensor elements within limited area of image sensor surface during adjustment of levelling gauge |
| 09/26/2001 | EP1136788A1 Portable GPS receiver using a barometric altimeter |
| 09/26/2001 | CN2450632Y Simple leveller |
| 09/26/2001 | CN1314581A Mile meter |
| 09/25/2001 | CA2209724C Levelling instrument |
| 09/18/2001 | US6292721 Premature descent into terrain visual awareness enhancement to EGPWS |
| 09/12/2001 | EP1132711A1 Portable altimeter and altitude computing method |
| 09/11/2001 | US6286607 Construction machine control system |
| 09/06/2001 | DE10005562A1 Leveling sensor for e.g. aligning laser device has acceleration measurement unit enclosed along with acceleration sensor via common frame |
| 08/28/2001 | US6281832 Method and apparatus for using statistical data processing in altimeter and terrain awareness integrity monitoring systems |
| 08/23/2001 | WO2001061277A2 Device, method and computer program product for altimetry system |
| 08/22/2001 | EP1126339A2 Stopwatch |
| 08/16/2001 | US20010014056 Stopwatch |
| 08/09/2001 | US20010012012 Measuring equipment and display method |
| 08/08/2001 | EP1122522A2 Measuring equipment and display method |
| 08/08/2001 | CN1069404C Laser survey instrument |
| 08/07/2001 | CA2013871C System of "computer aided surveying" for obtaining digital, 3d topographic information |
| 07/24/2001 | US6266628 Surveying system with an inertial measuring device |
| 07/24/2001 | US6266583 System and method for improving the accuracy of pressure altitude determinations in an inertial navigation system |
| 07/18/2001 | EP1116046A1 Interferometric synthetic aperture radar altimeter |
| 07/18/2001 | CN2439663Y Moveable type device for measuring level |
| 07/17/2001 | US6263263 Altitude correction for aircraft under non-ISA temperature conditions |
| 07/11/2001 | EP1115241A2 A portable communication device with means for measuring the altitude |
| 07/10/2001 | US6259380 Method and apparatus of automatically monitoring aircraft altitude |
| 07/10/2001 | US6259379 Air-ground logic system and method for rotary wing aircraft |
| 07/04/2001 | CN2438099Y Measuring telescope with leveler |
| 07/03/2001 | US6253457 Laser beam direction correcting optical system for a surveying instrument |
| 06/21/2001 | US20010004603 Communication handset |
| 06/21/2001 | US20010004287 Leveling device for a leveling instrument emitting at least two light beams |
| 06/21/2001 | DE10054327A1 Nivelliereinrichtung mit mindestens einem Empfänger zum Ermitteln einer Position in bezug zu einem mindestens zwei Lichtstrahlen aussendenden Nivelliergerät Leveling device with at least one receiver for determining a position with respect to an at least two light beams emitting leveling |
| 06/13/2001 | CN1299043A Self-calibration position indicating and ranging instrument |
| 05/29/2001 | US6237235 Electronic level and process for video sighting |
| 05/23/2001 | EP1102086A2 Opto-electronic device |
| 05/23/2001 | CN2431550Y Right angle multipurpose level-meter |
| 05/16/2001 | EP0914618B1 Integrity monitoring method and apparatus for gps and dgps receivers |
| 05/16/2001 | CN2430668Y Magnetic joint level height adjustable universal laser vertical leveler |
| 05/03/2001 | DE10000533A1 Altimeter for vehicle, has air gage which is calibrated based on data from navigation system and table containing height information corresponding to certain locations |
| 04/26/2001 | DE19941030C1 Laseranordnung für ein mehrstrahliges Laserrichtgerät Laser assembly for a multi-beam laser aiming device |
| 04/25/2001 | EP1093563A1 Topographic measurement device |
| 04/17/2001 | US6219618 Aircraft navigational warning system |
| 04/17/2001 | US6219592 Method and apparatus for terrain awareness |
| 04/12/2001 | WO2001025725A1 Method and apparatus for alerting submersible vessels to hazardous conditions |
| 04/12/2001 | WO2001025724A1 Method and apparatus for alerting surface vessels to hazardous conditions |
| 04/11/2001 | EP0715707B1 Automatic level and plumb tool |
| 04/11/2001 | CN1064426C Excavation regions setting apparatus for controlling region limited excavation by construction machinery |
| 04/10/2001 | US6216064 Method and apparatus for determining altitude |
| 04/03/2001 | US6209832 Holder for reference projected light detector |
| 04/03/2001 | US6209232 Construction machine with function of measuring finishing accuracy of floor face smoothed thereby |
| 03/28/2001 | CN2425347Y Tow-way magnetic damping automatic stabilizing laser level gauge |
| 03/21/2001 | CN2424446Y 回转盘 Circle |
| 03/08/2001 | DE19941598A1 Influencing gas diffusion in closed flexible liquid containers involves setting increasing pressure on liquid in container at least temporarily, removing application of pressure when in use |
| 03/07/2001 | EP1081460A2 Laser assembly for a multi-beam laser aiming device |
| 03/07/2001 | CN1062955C Laser collimation device capable of auto-holding reference precision |
| 03/06/2001 | US6195901 Laser beam projector power and communication system |
| 02/28/2001 | CN2421615Y Float guiding way guiding device |
| 02/14/2001 | CN2419576Y Miniature laser scanner |
| 02/08/2001 | DE19937154A1 Altitude detection in motor vehicle, calculating measurements of suction reed pressure from environmental pressure dependent on operating point, and subjecting them subsequently to filtering |
| 01/25/2001 | WO2000048159A3 Apparatus, methods and computer program product for the generation and use of a runway field clearance floor envelope about a selected runway |
| 01/24/2001 | EP1070936A2 Electronic leveling apparatus |
| 01/18/2001 | WO2000057202A3 Ground proximity warning system and method having a reduced set of input parameters |
| 01/09/2001 | US6172742 Reference irradiation beam detecting apparatus |
| 01/09/2001 | US6171018 Automatic control system for construction machinery |
| 01/02/2001 | US6167629 Electronic level and a leveling rod for use in combination with the same |
| 12/28/2000 | WO2000048050A3 Ground proximity warning system, method and computer program product for controllably altering the base width of an alert envelope |
| 12/27/2000 | CN2412199Y Multifunctional automatic vertical mechanism |
| 12/26/2000 | US6167356 System for measuring a jump |
| 12/21/2000 | WO2000077473A1 Automatic height adjustment in an altimeter |
| 12/20/2000 | EP1061335A2 Position detecting apparatus |
| 12/20/2000 | EP1061334A2 Portable pressure measuring apparatus |
| 12/19/2000 | US6163373 Rotary laser irradiating system |
| 12/13/2000 | EP1058816A1 Method and apparatus for determining altitude |
| 12/07/2000 | WO2000034740A3 Radio measuring method and auxiliary means for carrying out said method |
| 12/05/2000 | US6157891 Positioning and ground proximity warning method and system thereof for vehicle |
| 11/29/2000 | CN2408434Y Laser scriber |
| 11/23/2000 | WO2000070354A1 Method and apparatus for determining the vertical speed of an aircraft |
| 11/16/2000 | WO2000068641A1 Topographic measurement device |
| 11/14/2000 | US6148250 Altitude detection by use of planar approximation of a region of ground surface |
| 11/08/2000 | CN2405185Y Instrument for measuring slope digging line of earth work |
| 10/24/2000 | US6138060 Terrain awareness system |
| 10/24/2000 | US6137569 Survey instrument |
| 10/24/2000 | US6137568 Optical axis compensator |
| 10/24/2000 | US6137567 Laser survey instrument |
| 10/19/2000 | WO2000062016A1 Apparatus to calculate dynamic values for pressure density in an aircraft |
| 10/19/2000 | CA2368920A1 Apparatus to calculate dynamic values for pressure density in an aircraft |
| 10/11/2000 | EP1042646A1 Aircraft terrain warning system |
| 10/05/2000 | WO2000058744A1 Position finding |
| 10/04/2000 | CN2399703Y Horizontal extension measuring support |
| 10/03/2000 | US6128326 Constructional laser |
| 09/28/2000 | WO2000057202A2 Ground proximity warning system and method having a reduced set of input parameters |
| 09/28/2000 | WO2000057130A1 Height estimating apparatus |
| 09/28/2000 | CA2361112A1 Height estimating apparatus |
| 09/20/2000 | EP1037014A2 Electric level |
| 09/19/2000 | US6122570 System and method for assisting the prevention of controlled flight into terrain accidents |
| 09/13/2000 | CN2396377Y Connecting vessels type level-meter |
| 09/13/2000 | CN2396376Y Laser level-meter capable of projecting multiple light-spots |
| 08/30/2000 | CN2394197Y Rotary laser coal estimating device |