|
Match
|
Document |
Document Title |
|
|
8164521 |
Pseudo-omni-directional beamforming with multiple narrow-band beams
In a technique for communication with a station on a wireless network, the technique includes forming a plurality of narrow-band beams, each having a different angular direction from an antenna of...
|
|
|
7817065 |
Airport viewing system for an aircraft
The invention relates to a system with a device for determining the current position of the aircraft, a display device displaying, on a viewing screen an airport map, wherewith is associated a...
|
|
|
7626544 |
Robust low-frequency spread-spectrum navigation system
Methods and apparatus are described for a navigation system. A process includes providing a plurality of transmitters distributed throughout a desired coverage area; locking the plurality of...
|
|
|
7599678 |
Processor for a passive ranger
A receiver includes an RF bridge and a processor coupled to the RF bridge to receive an information signal from the RF bridge. The processor includes a clock source and a processor front end. The...
|
|
|
7576693 |
Position determination by directional broadcast
Methods and systems to determine the position of objects indoors or in confined areas are disclosed. A multitude of broadcast stations are transmitting an omni-directional reference signal and...
|
|
|
6847327 |
Base station, base station module and method for direction of arrival estimation
The invention relates to a base station for a radio communications network. In order to be able to enhance the resolution for a direction of arrival estimation, the base station comprises: a first...
|
|
|
5922031 |
Low-altitude piloting method
In a method for the piloting of an aircraft, enabling low-altitude flight by setting up a tangent with the relief to be overflown, the aircraft pilot determines the goals to be attained on a...
|
|
|
5689273 |
Aircraft surface navigation system
A surface guidance system for guiding aircraft equipped with Instrument Landing Systems along taxiways which utilizes two inductive loops (14,16) installed around the right half and the left half...
|
|
|
5526000 |
Procedure and automatic control device for an airborne vehicle in low altitude overflight
The so-called flight path of an aircraft is defined in the form of a set of successive target points (Bi -1, Bi, Bi +1) with a target circle (CBi) associated with each target point. A navigation...
|
|
|
5250955 |
State entry beacon system
A beacon system wherein a beacon station is placed at a landmark such as a state line adjacent a major highway to broadcast information-containing alternating directional signals. In addition, each...
|
|
|
5218360 |
Millimeter-wave aircraft landing and taxing system
Apparatus, and a corresponding method, for generating navigational data to aid a pilot in landing or taxiing an aircraft in poor visibility conditions. Radio-frequency (rf) beacons at predetermined...
|
|
|
5014067 |
Integrated landing system
An integrated landing system interleaves signals encoded in a first format such as the microwave landing system that (MLS) format with signals encoded in a second format such as the precision...
|
|
|
4990921 |
Multi-mode microwave landing system
A guidance system for landing an aircraft is described which uses a source of signals identifiable with the aircraft and a ground station which is linked to the aircraft. Specifically, the ground...
|
|
|
4893127 |
Radar navigation system
A low cost electronic navigation system including a Loran receiver and a marine radar unit adapted to receive vessel position information from the Loran. A computer within the radar unit uses...
|
|
|
4811022 |
Scanning antenna having phase center diversity
The object of this invention is to reduce the adverse effects of reflected electromagnetic radiation on the measurement threshold of a scanning beam. It has particular application to the time...
|
|
|
4789864 |
Low elevation guidance system
A guidance system for aircraft wherein a radio antenna on the ground transmits a beam that sweeps across an aircraft and the aircraft receives the beam and utilizes its amplitude waveform in...
|
|
|
4646097 |
Off-channel frequency discriminator circuit for use in a precision distance measuring equipment (DME/P) receiver
A precision distance measuring equipment (DME/P) receiver for detecting an RF signal including at least one interrogation pulse is described. The DME/P receiver includes first and second signal...
|
|
|
4642646 |
Automatic sensitivity adjustment and audio muting for aircraft marker beacon receiver
An improved aircraft marker beacon receiving and indicating system is provided, which automatically responds to the amplitude of the received signals to provide reduced sensitivity and muting of...
|
|
|
4333081 |
Monitoring system for scanning-beam microwave landing apparatus
Monitoring apparatus for a time reference scanning-beam microwave landing system which supplies directional information throughout a 40° to 60° landing approach sector. Several transponders are p...
|
|
|
4125836 |
Electrically scanned antenna system and modulator for omnidirectional radio range
An antenna system in which the antennas are not mechanically rotated generates an amplitude-modulated signal of equal intensity in all horizontal directions with the phase of the amplitude...
|
|
|
3989209 |
Apparatus for guiding an aircraft along a multi-segment path when landing the craft
For use with a microwave landing system of the type including a ground based station for generating a relatively wide aircraft navigational beam and airborne equipment for deriving precision...
|
|
|
3750176 |
INTEGRITY MONITOR FOR ILS RECEIVER WITH AUTOMATIC CHANGE OF MONITOR THRESHOLD SENSITIVITY
An integrity monitor for an aircraft Instrument Landing System receiver in which malfunctions are detected by comparing the outputs of identical guidance signal channels. Tracer signals are...
|
|
|
3739382 |
AIRCRAFT LATERAL GUIDANCE SYSTEM
Course and directional radio signals are combined to produce an aircraft guidance signal. The guidance signal is amplified and applied to control the intercept of the aircraft with a directional...
|
|
|
3715757 |
RADIO GUIDANCE SYSTEM WITH SEPARATE TRANSMISSION OF A STANDARD FREQUENCY SIGNAL TO ENHANCE THE DISCRIMINATION OF THE RECEIVER
A system for a craft to be guided including a receiver operable to receive guidance signals in a predetermined band of radio frequencies, the receiver also being capable of receiving a separate...
|
|
|
3697997 |
INTERFEROMETER AND ANGLE ENCODING NAVIGATION SYSTEM
A receiver system for determining the angle and direction between the longitudinal axis of a vehicle such as an aircraft and the direction of propagation from a source of radiation such as a VHF...
|
|
|
3696425 |
NAVIGATION SYSTEM FOR IMPROVING NOISY SIGNALS
A navigation system which includes monitoring means for continuously monitoring the navigation signal such that if an intelligent signal varies at an inordinately high rate the rapidly fluctuating...
|
|
|
3696426 |
RECTILINEAR NAVIGATION SYSTEM
An aircraft navigation system which has a rectilinear navigation director with a fixed aircraft indicia and which continuously indicates the heading of the aircraft. The system also allows the...
|
|
|
3671963 |
BLIND LANDING AIDS
A blind landing aid system for visualizing on board an aircraft, a runway delimited by responder beacons wherein an infra-red transmitter, located on board the aircraft, emits an infra-red beam...
|
|
|
3577195 |
SERVOED METER APPARATUS
Apparatus for positioning an indicator in accordance with a control signal including a D'Arsonval-type meter movement having an auxiliary AC excitation winding on the field magnet thereby providing...
|
|
|
3550128 |
GAIN ADJUSTMENT MEANS FOR BEAM COUPLERS
|
|
|
3495241 |
NAVIGATION SYSTEM FOR CORRECTING SLANT RANGE ERRORS
|
|
|
3848114 |
CONTROL SYSTEM FOR PROVIDING A SPIRAL FLIGHT PATH TO A RADIO BEACON
|
|
|
3553696 |
AERIAL SYSTEM FOR APPLICATION TO RADIO PROPAGATION AND NAVIGATION
|
|
|
3445846 |
AIRCRAFT CONTROL SYSTEM INCLUDING AUTOMATIC COURSE CHANGING MEANS
|
|
|
3376574 |
Guidance system for ploughs
|
|
|
3368065 |
Aircraft instruments
|
|
|
3361391 |
Gain adjustment means for beam couplers
|
|
|
3355126 |
Radio beam capture circuit for aircraft guidance
|
|
|
3353182 |
Radio polarization guidance system
|
|
|
3351941 |
Radio way-following system
|
|
|
3314068 |
Grading method and appartaus
|
|
|
3290687 |
Course beacon system to provide directional information with the aid of two frequency-deviation directional radiation patterns
|
|
|
3286261 |
Direction-determination system employing unequal directional patterns
|
|
|
3286262 |
Amplitude modulation radio beacon
|
|
|
3283326 |
Antenna array and method for instrument landing systems
|
|
|
3283325 |
Directive transmitter system for aircraft runway approach
|
|
|
3277431 |
Ship separation control system
|
|
|
3274599 |
Radio direction finder system
|
|
|
3241143 |
Optimum beam captive control device for providing distance information
|
|
|
3130407 |
Twin beacon system
|