Laser transponder for disabling a laser-based speed monitor

Details Laser transponder for disabling a laser-based speed monitor Laser transponder for disabling a laser-based speed monitor

G - Physics

01

S

G01S 7/495 (2006.01) G01S 7/483 (2006.01) G01S 17/58 (2006.01)

Patent

CA 2483588

A laser transponder (1) for disabling a laser-based speed monitor (7), which is transmitting a monitor laser beam at a moving vehicle by transmitting a jamming laser beam to the laser-based speed monitor. The monitor laser beam is in the shape of a monitor signal (8; s1; sm) comprising monitor pulse trains (65) emitted with a first frequency f1, while the jamming laser beam is in the shape of a jamming signal (11; s2; sj) comprising jamming pulse trains (67) emitted with a second frequency f3.

L'invention concerne un transpondeur laser (1) servant à désactiver un détecteur (7) de vitesse à laser, qui émet un faisceau laser de détection vers un véhicule en mouvement en transmettant un faisceau laser de brouillage au détecteur de vitesse à laser. Le faisceau laser de détection est sous la forme d'un signal de détection (8; s1; s¿m?) comprenant des trains (65) d'impulsions de détection émis à une première fréquence f¿1?, alors que le faisceau laser de brouillage est sous la forme d'un signal de brouillage (11; s2; s¿j?) comprenant des trains (67) d'impulsions de brouillage émis à une deuxième fréquence f¿3?.

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