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WO/2000/048159A2 |
The present invention provides apparatus, methods, and computer program products that monitor the altitude of an aircraft with respect to a selected runway. If the altitude of the aircraft is below a minimum glideslope with respect to th...
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WO/2000/045126A1 |
The present invention provides several apparatus, methods, and computer program products for determining a look ahead distance value for use in a ground proximity warning system. The apparatus, methods, and computer program products gene...
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WO/2000/042379A1 |
Apparatus and method for measuring height and stagger of a railway catenary is disclosed. The apparatus comprises a platform (22) supported on the track (4) having a distance measuring means (42) mounted on a traversing means for angular...
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WO/2000/034740A2 |
The invention relates to a radio measuring method and to auxiliary means thereof for carrying out the method, said auxiliary means being at least one transportable transmitter and at least one transportable receiver. According to the inv...
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WO/2000/031564A1 |
An aircraft navigation system (figs. 1 and 2) including a global positioning receiver (11) for providing real time longitude, latitude, altitude, heading, velocity, and time data; a minimum safe altitude database for a collection of cell...
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WO/2000/020892A1 |
Aircraft position determination system includes a transmitter to transmit a signal (10), and two receivers (22, 24) to receive the transmitted signal reflected from the terrain below the aircraft, and a phase comparison apparatus (96) op...
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WO/2000/002102A1 |
A system is disclosed that can measure the vertical height and/or the hang time of a jump. The system includes an acceleration detector (26), a controller (20), a display (22), a power source (32) and a case that houses the components in...
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WO/2000/000788A1 |
The apparatus for determining the relative height between two targets includes: two signal-responsive target-objects; a casing housing first and second measurement ports displaced a known distance from each other; at least one signaling ...
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WO1999032850A9 |
In order to provide the pilots with a display or a map of the terrain below the aircraft, a display is generated on a cockpit display, such as a weather radar, of the contours of the terrain below the aircraft. The terrain contour displa...
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WO/1999/042788A1 |
Methods and apparatus for determining altitude, specifically altitude in an aircraft, and an estimated error of the altitude. The altitude determination preferably uses a first altitude based on hydrostatic calculations, including local ...
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WO/1999/000644A1 |
A gauge for monitoring the relative height of two points (7, 9) comprises a generally tubular conduit (6) extending from a first end thereof (7) via a first limb thereof to a monitoring position (9) spaced from the first end (7) and via ...
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WO/1998/043045A1 |
A method for calibrating a pressure-sensing altitude sensor (12) of an aircraft (10) while the aircraft (10) is in flight. The method includes the steps of obtaining a set of reference atmospheric pressures as a function of height above ...
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WO/1998/043107A1 |
An aircraft collision avoidance method, including the steps of determining geopotential heights of a first (10) and a second (14) aircraft at substantially the same instant of time using a satellite-based position determining device disp...
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WO/1998/039618A1 |
An educational clinometer apparatus enabling calculations of heigth or distance to be made comprises an enclosed, hand-held (17) housing (16) with a tunnel viewing path (20) having eyepiece and objective lenses (21, 22). Inside the housi...
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WO/1998/039620A1 |
The invention relates to a flight guidance system for low-flying aircraft. A base image is provided by the natural vision of the pilot or produced by means of a sensor, this being an image of the scene in front of the aircraft. The inven...
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WO/1998/010147A1 |
A construction machine with a laser measuring instrument comprising a construction machine main body, a working device, and an operating member for operating a plurality of arm members and tip working members by driving a cylinder device...
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WO/1998/004929A1 |
A fail safe GPS system for an aircraft moving along a desired trajectory within vertical and horizontal limits using first and second redundant GPS receivers a first of which is connected to the avionics equipment of the aircraft and to ...
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WO/1998/004883A1 |
In order to provide the pilots with a display or a map of the terrain below the aircraft, a display is generated on a cockpit display, such as a weather radar, of the contours of the terrain below the aircraft. The terrain contour displa...
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WO/1997/048029A1 |
The invention concerns a method for aerodyne altitude management consisting in: selecting and displaying (A1) a reference altitude; acquiring the aerodyne current altitude from at least one altitude sensor (ACS1, ADC2); comparing the cur...
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WO/1997/029387A1 |
A relatively low-cost FMCW radio altimeter includes a voltage-controlled oscillator based upon a GaAs FET. The oscillator produces, for example, a 4.3 GHz microwave signal that is modulated with a triangular wave having a pin-selectable ...
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WO/1997/029389A1 |
An integrated flight safety device for general aviation aircraft includes a radio altimeter and flight data recorder.
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WO/1997/024634A2 |
An ambiguous dial indicator intuitively communicates the relative value of setpoints to an operator. The ambiguous dial indicator includes an ambiguous scale and a pointer or needle. The setpoints are represented by "bugs" which are adja...
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WO/1997/018439A1 |
A hydrostatic height measurment system including a set of vessels (10, 20, no) containing a liquid (9) and fitted with level sensors (15, 25, n5), and means for interconnecting the vessels (10, 20, no) via a connecting circuit (3). The s...
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WO/1997/007296A1 |
In an excavation region setting apparatus for controlling the region limited excavation by a construction machine, which is adapted to calculate a target speed vector Vc for use in controlling a front unit (1A), on the basis of a vehicle...
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WO/1997/005450A1 |
A terrain awareness system (TAS) provides LOOK-AHEAD/LOOK-DOWN as well as LOOK-UP terrain advisory and warning indications to the pilot of an aircraft of a hazardous flight condition. The TAS includes an airport data base as well as a te...
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WO/1996/024820A1 |
A levelling instrument has an image-forming objective, a picture-taking spatial resolution optoelectronic detector, and electronics and a computing unit for driving the detector and evaluating the detector signals. The image-forming obje...
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WO/1996/018867A1 |
The object of the invention is to create a one-man operated level difference measurement apparatus to replace the usual sensitive optical apparatus. It should also supply sufficiently precise measurement results even in poor local visibi...
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WO/1996/017132A1 |
A marking device (1) has an outer tube (2) to which is secured a revolving holding device (19) for a piece of chalk (20) or a marking plate. An inner tube (10) slides in the longitudinal direction inside the outer tube (2). The inner tub...
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WO/1995/018954A1 |
A device for providing one or more signals that are functions of a sensor module's altitude relative to a reference body of a liquid. The sensor module has one or two hydrostatic pressure transducers (10) which transducers are linked to ...
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WO/1995/018955A1 |
A hydrostatic measurement module (24) senses elevation relative to a fluid reservoir under atmospheric pressure. The measurement module further includes multiple functions and modes. One function allows the invention to measure heights a...
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WO/1995/006231A1 |
An automatic plumb, level and pointing tool (75) uses a visible laser diode (80) to project light beams (100, 102) in two modes through two windows (98, 121). In the first mode of operation, the unit is able to project a plumb-up beam an...
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WO/1994/020886A1 |
Water detection means (5) and actuator means for operating water depth measuring means (6) are disposed so that the water depth measuring means (6) is forcedly operated by the actuator means when the water detection means (5) detects wat...
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WO/1994/013892A1 |
A gas/liquid accumulator (8) for a level difference measuring apparatus based on the measurement of the hydrostatic head of a liquid column and particularly intended for use in a piece of construction equipment, said equipment having its...
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WO/1994/011704A1 |
The compensator is used for an equipment which requires verticality or horizontality. The compensator comprises a sealed liquid container (4) in which transparent liquid is sealed in such a way that the liquid has a free surface (1); a l...
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WO/1994/005971A1 |
A water level (10) includes a length of plastics tubing (12) having glass or plastic cylinders (14 and 16) at the ends of the tubing, the cylinders being secured to mounting plates (18 and 20) respectively. The cylinders (14 and 16) can ...
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WO/1994/005970A1 |
A spatial positioning system includes fixed referent stations (101, 102 or 103) which emit rotating, divergent laser beams (130) and a portable reflector (200). Each fixed station also includes a detector (330) and a processor (120). The...
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WO/1993/017300A1 |
A pressure measurement device (10) with a selective altitude threshold crossings accumulator and method therefor provides for selective accumulation of relative pressure thresholds. A pressure sensor (12) measures atmospheric pressure an...
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WO/1993/009399A1 |
The system at issue applies to the field of topographical, cadastral and any other kind of ground survey, including the measurement and mapping of interiors. Such system allows the measurement both of distances between points and of thei...
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WO/1992/021936A1 |
An attitude sensor in which a spherical ball (1, 1'') is suspended in a fluid (11) contained in a housing (22); the sensor is maintained neutrally with respect to the fluid and has a means (17, 33) for maintaining the ball out of direct ...
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WO/1992/015975A1 |
A ground proximity warning system (12) for use in conjunction with an automated guidance system (20) provides a warning (24) to the pilot of an aircraft on approach to a landing if the automated guidance system (20) is not coupled or is ...
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WO/1992/015976A1 |
A ground proximity warning system (10) monitors the descent rate (14) of an aircraft and generates a warning (24) if the descent rate is excessive for the current altitude above ground (12) of the aircraft according to a predetermined re...
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WO/1992/006356A1 |
An accumulating altimeter (10) includes a programmable accumulator (16) which selectively accumulates altitude changes from a reference altitude in accordance with accumulation thresholds. Altitude changes in the direction of interest, e...
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WO/1992/003701A1 |
A spatial positioning apparatus providing three-dimensional position information and methods to utilize the position information for improved surveying, construction layout, equipment operations, manufacturing control and autonomous vehi...
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WO/1991/016233A1 |
A hydrostatic pressure sensor, one use for which is to initiate the automatic deployment of emergency marine safety equipment, when a specified depth below the water level is exceeded. The sensor uses a novel method of compensating for a...
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WO/1991/016525A1 |
A system for controlling the direction of an underground excavator for carrying out underground excavation while performing a directional control by rocking a pilot jack through a rocking jack provided on the system, wherein a rocking ma...
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WO/1991/009272A1 |
A vertical-difference measuring instrument comprising an entirely closed liquid system containing, as the only fluid, only substantially non-compressive liquid, the liquid system comprising a variable-volume reference reservoir (12) and ...
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WO/1991/002944A1 |
A combined altimeter/barometer instrument (1) is provided with setting means (6) which can be actuated in two different modes, i.e., in a pressure level setting mode so as to set the instrument to a known sea-level pressure, or in an alt...
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WO/1990/013002A1 |
A device for defining a plane to determine relative elevations comprising in combination a stationary housing (7) having an aperture (8) and locating a pair of vertical reflecting surfaces (6) at right angles to each other which may be a...
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WO/1989/010536A1 |
A level comprises a suitably tubular conduit (2) which is at least partly filled with liquid and which, at least at a first end thereof, is transparent (11) for making visible a first liquid surface (17) for reading, which is located in ...
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WO/1989/009924A1 |
Distance travelled over a gradient is determined by measuring atmospheric pressure at a point on a path to be travelled in order to obtain an altitude value. The measurement is repeated at another point on the path travelled, and by dete...
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