Double magnetic coil measuring device for determining shielding effectiveness - has magnetically conducting collars around openings in housing arranged with constant opposing surface separation
DE4223118A1
Air traffic position detector for regional aerodrome - determines horizontal and vertical position of aircraft esp. around landing sites to ensure safe landing
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METHOD FOR THE AUTOMATIC CLASSIFICATION OF DIGITALLY MODULATED SIGNALS AND ARRANGEMENT FOR IMPLEMENTING THE PROCESS
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Road vehicle speed measurement for in vehicle use - having pair of microwave doppler sensor coupled to correlator to determine propagation delay related to true road speed
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Double reflector radar antenna with variable directional characteristic - has movable metal or metallised element within radiation field of main reflector or pivoted edge around main reflector
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Locating position of aircraft using a simple ground station - involves exchanging signals via half=duplex link between aircraft and ground station with multi=channel antenna=receiver arrangement
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Doppler radar sensor for position, velocity or movement detection - uses switch between base of microwave transistor and DC source allowing continuous wave or pulsed operating mode
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Vehicle combined lighting unit - has common light deflector for different light sources coupled to optical fibres
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Information communication procedure using available TV channels - identifying subscribers by codes held in memory and comparing with transmitted values to control access
EP0492330A1
Capacitive inclination sensor
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Sensor for security alarm switching in motor vehicle - incorporates reed switches for detecting switching at alarm installation and attempt at external manipulation by magnet
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INTERIOR SENSOR, PREFERRED FOR MOTOR VEHICLES
DE4135495A1
Equaliser for digital communication signals - uses transversal filter to adapt receiver for transmitted signals without use of test signal sequence
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Electronic vehicle alarm system - has logic circuit for controlled switching between power down and normal modes
DE4132603A1
Absorber for damping electromagnetic waves - contains resistive conductor forming closed loop on reflective surface, matching resistors in loop sections not horizontally aligned w.r.t. surface
DE4132240A1
PROCESS FOR SIGNAL PROCESSING FOR A RADAR SYSTEM
DE4131141A1
METHOD FOR DISTINATING AT LEAST TWO GOALS
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CARRIER FOR PLANAR MICROWAVE CIRCUITS
DE4129595A1
Solar cell coating removal appts., e.g of anti-reflex or passivation coats - includes rotating drum carrying cells arranged along spiral path while laser beam is adjusted sideways
DE4129011A1
Transmission appts. with several transmitters, e.g for ship or aircraft - has frequency selector and common aerial with various transmitters tunable to same or at least overlapping frequency ranges
