| Patent Number |
Title Of Patent |
Date Issued |
| 6255831 |
Millimeter wave measurement process |
July 3, 2001 |
| With the help of the millimeter wave measurement system, the surface impedance is determined by means of one or a plurality of resonators with very high three dimensional resolution when there are relatively large resonator openings in the millimeter wave range. By means of this, str |
| 6188717 |
Method of simultaneous radio transmission of digital data between a plurality of subscriber stat |
February 13, 2001 |
| The method of the invention is based on an optimum combination of multi-carrier modulation with the spread-spectrum technique. The data of a subscriber station are spread, with the data of a subscriber station being modulated on a set of orthogonal spread sequences and superimposed. The |
| 6055080 |
Optical microphone |
April 25, 2000 |
| In an optical microphone including a light source, a fiber optic cable and a Fabry-Perot interferometer with two reflectors, wherein one end face of the fiber optic cable forms a first reflector and the second reflector is arranged at a distance therefrom and is displaceable by fluctuati |
| 6012494 |
Flexible structure |
January 11, 2000 |
| In a flexible structure, a number n of notches (12a, 12b) is formed in a preferably circular-cylindrical block of material (1). The parallel and equidistant notches (12a, 12b) begin at two diametrically opposed jacket lines (10.sub.1, 10.sub.2) and are at right angles or an acute angle t |
| 5964780 |
Gripping apparatus for use in minimally-invasive surgery |
October 12, 1999 |
| In an apparatus for operating a robotic device (1), preferably in minimally-invasive surgery and/or robotics, at least one movable robotic part (11; 12) of the robotic device (1) is connected to a first holding part (60) by way of a first, flexible connecting part (51.sub.1) of a hin |
| 5952829 |
Process and device for magnetic resonance examinations |
September 14, 1999 |
| The invention relates to a process for magnetic resonance examinations, in particular nuclear spin tomography, whereby a static magnetic field is produced in an examination zone and at least one gradient magnetic field is superposed, whereby unwanted alternating electromagnetic forces ar |
| 5923037 |
Device for determining the ozone concentration in air |
July 13, 1999 |
| In a device for determining the ozone concentration by utilizing the surface chemiluminescence effect having a fan (13), a chemiluminescence element (8), a photomultiplier (6), a temperature sensor (16), and control electronics (12), an airflow generated by a fan (13) passes via a suctio |
| 5914776 |
Method for an automated visual range measurement by means of a LIDAR system |
June 22, 1999 |
| For automated visual range measurement by a LIDAR system, a distance measuring range is first determined through repeated evaluation of a voltage level U(R) which indicates the intensity of a threshold value. After random initialization of a start value, the start value is then repla |
| 5836208 |
Apparatus for converting a rotational movement into an axial movement |
November 17, 1998 |
| To convert a rotational movement into an axial movement, rolling or roller bodies (2') are seated by way of a plurality of guide rings (5) and bearings (6) disposed between the guide rings (5) and a spindle nut (3'). The rolling or roller bodies (2') are fixedly spaced relative to the |
| 5820545 |
Method of tracking a surgical instrument with a mono or stereo laparoscope |
October 13, 1998 |
| For tracking a mono- or stereo-laparoscope in connection with minimally invasive surgery, where the laparoscope is moved by a robot in respect to surgical instruments located in the operation area, surgical instruments are color-coded and are identified in images provided by the camera o |
| 5812082 |
Method for azimuth scaling of SAR data and highly accurate processor for two-dimensional process |
September 22, 1998 |
| In a method for azimuth scaling of SAR data without interpolation, raw SAR data in azimuth are multiplied with a phase function H.sub.5 (f.sub.a ;r.sub.o), where f.sub.a denotes the azimuth frequency and r.sub.o denotes the range to a target point, and where a desired scaling factor is e |
| 5805107 |
Cost-effective method for determining a pulse response of a high-resolution, band-limited radar |
September 8, 1998 |
| For less expensive estimation the impulse response x.sub.MOS of a high-resolution, band-limited radar channel in a radar station operating with an expanded transmitted pulse a(t), from a received signal e, over which a correlated or uncorrelated additive interference signal n can be |
| 5797387 |
Absorber |
August 25, 1998 |
| The invention relates to an absorber designed to absorb radiation and to transfer the energy of the radiation to a heat transport medium. To provide an absorber with high efficiency, the absorber according to the invention comprises a plurality of absorber components (32) attached to |
| 5778549 |
Correcting measurement errors |
July 14, 1998 |
| A method of correcting measurement errors in a measurement robot resulting from relative movements between an object to be measured and a measurement probe comprises the steps of detecting the accelerations at the probe, detecting the accelerations at or close to the object to be measure |
| 5774089 |
Method to resolve ambiguities in a phase measurement |
June 30, 1998 |
| In a method to resolve ambiguities in a phase measurement for application in radar interferometry, a frequency estimation method is used, starting from conjugate complex products of pairs of adjacent pixels in an interferogram. The resolution of these products is subsequently reduced |
| 5765817 |
Interface for vibration reduction in structural-dynamic systems |
June 16, 1998 |
| An interface (3) for vibration reduction in structural-dynamic systems comprises a base-side construction element (8) and a structure-side construction element (9) and at least one actuator (14), for example a piezoelectric or a magnetostrictive actuator. The actuator (14) has a main |
| 5758298 |
Autonomous navigation system for a mobile robot or manipulator |
May 26, 1998 |
| In an autonomous navigation system for a mobile robot or a manipulator which is intended to guide the robot through the workspace to a predetermined target point in spite of incomplete information without colliding with known or unknown obstacles. All operations are performed on the |
| 5757105 |
Pivot drive |
May 26, 1998 |
| A pivot drive for quick and precisely positioned rotational movements around a limited angle value comprises one or more rods with a cross-section which is not warping-free and one or more actuators for the introduction of longitudinal forces into the rods. The longitudinal forces ge |
| 5751410 |
Method for measuring flow vectors in gas flows |
May 12, 1998 |
| In the optical measurement of the flow vectors in gas flows, two substantially parallel light beams (11a, 11b) are focussed at separate focussing spots. The particles passing the focussing spots light up and thereby generate a start pulse and a stop pulse, respectively. Therewith, th |
| 5735486 |
Aircraft wing |
April 7, 1998 |
| In a wing with wing shells with good shear strength made of fibrous composite materials, particularly fiber-reinforced plastics, for aircraft, members taking up tensile and compressive forces are attached to the inside of the wing shells. These members have unidirectional fibers exte |
| 5735374 |
Current collector for transmitting energy between a contact wire and a motor coach |
April 7, 1998 |
| A current collector (15) is provided for transmitting energy between a contact wire (2) and a motor coach. The current collector comprises at least one collector shoe (1) and a support arm (11) constructed and arranged to lift the collector shoe, and to apply a contact force in which |
| 5731640 |
Converter for changing rotary movement to axial movement |
March 24, 1998 |
| A device (1) for converting rotary movement into axial movement has a spindle (8), a spindle nut (5) surrounding the spindle (8), and a plurality of interposed rollers (7). Each of the rollers has a groove profile (72) corresponding to a thread (81) on the spindle (8), and roller gro |
| 5731589 |
Ultraviolet radiation dosimeter |
March 24, 1998 |
| The invention relates to a radiation dosimeter comprising a sensor arranged in a dosimeter casing and including at least one measuring field and a calibrating zone (64). To provide a dosimeter which can be readily manufactured and comprises a wide measuring range with high precision, it |
| 5730581 |
Rotor blade |
March 24, 1998 |
| A rotor blade made of fiber-reinforced synthetic resin has a profile which, at least in the region of the blade tip is designed so as to be twistable by actuators about the rotor blade longitudinal axis. The torsion skin of the rotor blade in the region of the blade tip is designed aniso |
| 5705241 |
Fibre-composite rod |
January 6, 1998 |
| A rod with a tubular, fibre-composite wall, cut into two parts has actively controllable, pressure- and tension-generating elements which are effective in an axial direction of the rod, provided therebetween. An exterior pressure-generating element, which effects an elongation, takes |
| 5696381 |
Radiation dosimeter for the detection and/or dosimetry of radiation, particularly UV radiation |
December 9, 1997 |
| The radiation dosimeter for the detection/and or dosimetry of radiation, particularly UV radiation, is provided with a housing comprising an opening. A sensor device sensitive to the radiation of interest is arranged below the diffuser cover layer (10). The diffuser cover layer (10) |
| 5686852 |
Circuit arrangement for forming the square root of an input signal |
November 11, 1997 |
| A circuit arrangement for forming the square root of an input signal in at least one quadrant. The input signal is fed to the input of a first differential amplifier, the current outputs of which work on two diodes. The two outputs of the first differential amplifier are also connected t |
| 5684572 |
Method for determining the velocity of a flow |
November 4, 1997 |
| In a method for determing the velocity of a flow seeded with particles reflecting light, the particles located in a light sheet (4) are illuminated with monochromatic light (5). The doppler-shifted frequency of the light reflected sideways out of the light sheet (4) by the particles |
| 5669918 |
Surgical instrument for preparing an anastomosis in minimally invasive surgery |
September 23, 1997 |
| A surgical instrument for one-handed preparation of an anastomosis in minimally invasive surgery has, from the distal end to the proximal end, an interchangeable insertion head (1), a staple holder (30) with U-shaped staples and with a circular groove with thread placed in it, an ejector |
| 5627543 |
Method of image generation by means of two-dimensional data processing in connection with a rada |
May 6, 1997 |
| In connection with a method for image generation by means of two-dimensional data processing, received SAR data are multiplied by a phase correction (H.sub.mc) for a reference range (r.sub.ref) for the insertion of a motion compensation and for processing at a high drift angle, and a |
| 5610703 |
Method for contactless measurement of three dimensional flow velocities |
March 11, 1997 |
| A digital particle image velovimetry (DPIV) method for contactless measurement of three dimensional flow velocities comprising the steps of seeding a flow with tracer particles; repeatedly illuminating a plane-like interrogation volume of the seeded flow; projecting the repeatedly il |
| 5602587 |
Correction of influence of alternating voltage coupling in a signal chain of scanning opto-elect |
February 11, 1997 |
| A method for correction of influence of alternating voltage coupling in a signal chain of scanning opto-electronic sensors on radiometric data thereof is carried out by firstly ascertaining, and storing, characteristic times from the time constant of a RC-circuit of the signal chain |
| 5594832 |
Black body radiator with reflector |
January 14, 1997 |
| A black body radiator for calibrating infrared measuring devices in the form of a heatable body is heated by means of a heating foil in the form of a metallic electrically excellently conducting heating coil embedded in a plastic sheet. The heating foil is adhered in excellently thermall |
| 5592164 |
Circuit arrangement for signal processing |
January 7, 1997 |
| A circuit arrangement for signal processing of discrete or continuous signals of at least one CCD component, includes a multiplexer which receives the signals for processing and has an output, a pre-amplifier having an input connected to the output of the multiplexer, and further hav |
| 5590044 |
Method and apparatus for finding aircraft position by integrating accelerations less time averag |
December 31, 1996 |
| A method and apparatus for short-range position determination of aircraft, used for preventing errors in radar mapping from position inaccuracies, finds velocity in the x-direction (flight direction) by integrating accelerometer outputs. The accelerometer values are averaged over a time |
| 5567865 |
Method for determining the size of airborne water droplets |
October 22, 1996 |
| To determine the size of airborne water droplets having a diameter from approximately 1 to 100 .mu.m, if such water droplets move at a velocity of 50 to 150 m/s relative to a measuring probe and strike it,in the probe body, whose front face toward the flow has a vapor-deposited platinum |
| 5539408 |
Method for the detection, localization and velocity determination of moving targets from raw rad |
July 23, 1996 |
| In a method for the detection, localization and velocity determination of moving targets from raw radar data from a coherent, single- or multi-channel image system (SAR), for representing the surface of the earth with different backscatter ratios, chronologically successive azimuth s |
| 5537754 |
Extensometer and support for an extensometer |
July 23, 1996 |
| The extensometer comprises a basic body (18) which carries two tap legs (12) which abut a specimen (16) to be measured so as to be frictionally locked thereto. Due to the frictional contact, the tap legs (12) move relative to each other when the specimen is subjected to external stre |
| 5527985 |
Process for recycling waste sulfuric acid |
June 18, 1996 |
| A process for recycling waste sulfuric acid by decomposing organic contaminants by use of light energy, comprising exposing a waste sulfuric acid containing contaminants to a focused radiation emission having an irradiation intensity within the range of from 0.01 to 100 MW/m.sup.2 in a |
| 5515275 |
Control system for steering a road vehicle having both front-wheel steering and rear wheel steer |
May 7, 1996 |
| A control system for steering a road vehicle having front-wheel and rear-wheel steering, comprising a wheel base l (in m), a rear cornering stiffness c.sub.h (in N/rad), a center of gravity distance l.sub.v (in m) from the front axle and a mass m (in kg) and provided with a decoupled |
| 5511081 |
Method for source-controlled channel decoding by expanding the Viterbi algorithm |
April 23, 1996 |
| Improved Viterbi decoding of radio signals of the type calculating a metric increment ##EQU1## wherein .lambda..sub.k is calculated at time intervals indexed by k, i is a data bit position index, y is a received value, x is a coded bit of a predetermined sequence, and a is a fadi |
| 5506780 |
Apparatus for orbit control of at least two co-located geostationary satellites |
April 9, 1996 |
| In an apparatus for orbit control of at least two co-located geostationary satellites a single interface is provided in the form of an orbit database for exchanging orbit and maneuver data between four independent decoupled function blocks of an orbit control system having a matched func |
| 5497548 |
Method of making rings for gears having internal or external toothing |
March 12, 1996 |
| To reduce the mass of internally or externally toothed gears, a thin metal ring having internal or external toothing is made and bonded to a ring of fibrous composite material. Furthermore, to make rings for gears having internal or external toothing, fabric hoses of fibrous composite ma |
| 5496002 |
Aircraft wings |
March 5, 1996 |
| A wing made of composite fibre materials, especially carbon fibre reinforced plastics, comprises shell components having a thin-walled, pre-formed wing skin and tubular rods as stringers. The stringers are provided with a connection element and a compression plate at the fuselage end |
| 5489907 |
Airborne SAR system for determining the topography of a terrain |
February 6, 1996 |
| In an airborne SAR system for determining the topography of a terrain, two complete, correlated SAR images with different amplitude modulation in the cross-track direction are obtained and recorded by switching of two antenna patterns which can be generated by means of a monopulse antenn |
| 5484634 |
Connection element made from a composite material with carbon fibres |
January 16, 1996 |
| A rod connection arrangement includes a connection element for connecting a cylindrical reinforcing rod to a cylindrical main rod, with the reinforcing rod extending at an angle to the axis of the main rods. Each rod respectively consists of a core of compression material surrounded by |
| 5482584 |
Method for manufacturing rotor blades |
January 9, 1996 |
| A rotor blade is made of fibre-reinforced synthetic resin and comprises a moulded core with central, front and rear elements and a foot end fastening element, a unidirectional fibre layer being wound longitudinally of the core, a first cross-binding lying over the fibre layer and a secon |
| 5448243 |
System for locating a plurality of objects and obstructions and for detecting and determining th |
September 5, 1995 |
| In a system for locating a plurality of objects and obstructions and for detecting and determining the rolling status of moving objects, such as aircraft, ground vehicles, and the like, in the area of an airport, a short-range radar network is provided having at least three radar sta |
| 5440309 |
Method of extracting motion errors of a carrier bearing a coherent imaging radar system from rad |
August 8, 1995 |
| In a method of extracting motion errors of a carrier bearing a coherent imaging radar system from radar raw data, after calculating the entire azimuth spectrum (S(f,i)) and before correlation the azimuth spectrum is broken down over the entire bandwidth into n subspectra (S.sub.1 (f,i) . |
| 5440144 |
Apparatus for the three-dimensional determination of flows |
August 8, 1995 |
| An apparatus for the three-dimensional determination of flows has a light source for briefly illuminating a light section (3) and a stereoscopic recording device (10). The stereoscopic recording device (10) comprises two equivalent objectives (11, 12) aligned parallel to each other as we |
