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1. WO1990013880 - OPTICAL WARNING SYSTEM

Publication Number WO/1990/013880
Publication Date 15.11.1990
International Application No. PCT/US1990/001809
International Filing Date 04.04.1990
IPC
G01S 3/16 2006.01
GPHYSICS
01MEASURING; TESTING
SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
3Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
02using radio waves
14Systems for determining direction or deviation from predetermined direction
16using amplitude comparison of signals derived sequentially from receiving antennas or antenna systems having differently-oriented directivity characteristics or from an antenna system having periodically-varied orientation of directivity characteristic
CPC
G01S 3/16
GPHYSICS
01MEASURING; TESTING
SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
3Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
02using radio waves
14Systems for determining direction or deviation from predetermined direction
16using amplitude comparison of signals derived sequentially from receiving antennas or antenna systems having differently-oriented directivity characteristics or from an antenna system having periodically-varied orientation of directivity characteristic
Applicants
  • AIRBORNE RESEARCH ASSOCIATES, INC. [US]/[US] (AllExceptUS)
  • MARKSON, Ralph, J. [US]/[US] (UsOnly)
  • GOVAERT, Johan, A. [US]/[US] (UsOnly)
Inventors
  • MARKSON, Ralph, J.
  • GOVAERT, Johan, A.
Agents
  • FRENCH, Timothy, A.
Priority Data
345,72001.05.1989US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) OPTICAL WARNING SYSTEM
(FR) SYSTEME D'AVERTISSEMENT OPTIQUE
Abstract
(EN)
A lightning and strobe light detector and warning system capable of distinguishing strobe light and lightning flashes (150) and including to an operator of the existence of a flash even under high illumination background conditions. The device may comprise a plurality of detectors (118) and therefore not only distinquish between the strobe and lightning flashes (150) but also indicate the direction of a flash.
(FR)
L'invention concerne un détecteur d'éclairs et de lumière stroboscopique, ainsi qu'un système d'avertissement, capables de distinguer la lumière stroboscopique et les éclairs (150), et d'indiquer à un utilisateur l'existence d'un éclair, même dans des conditions d'éclairage intense d'arrière plan. Le dispositif peut comprendre une pluralité de détecteurs (118), et par conséquent non seulement distinguer la lumière stroboscopique et les éclairs (150), mais aussi indiquer le sens d'un éclair.
Also published as
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