Optics: measuring and testing – Velocity or velocity/height measuring – With light detector
Patent
1995-12-04
1998-08-11
Buczinski, Stephen C.
Optics: measuring and testing
Velocity or velocity/height measuring
With light detector
356 285, G01P 336
Patent
active
057934762
ABSTRACT:
A laser transponder and method for disabling a laser-based speed monitor of the type that transmits a monitor laser beam at a moving motor vehicle. The monitor laser beam transmitted by the speed monitor is detected when it arrives at the motor vehicle. In response to detecting the monitor laser beam, a warning is output to the motor vehicle driver and a jamming laser beam is transmitted toward the speed monitor. The jamming laser beam includes a plurality of pulses separated from each other by a time period that is less than or equal to an amount of time needed for the monitor laser beam to travel from the speed monitor to the motor vehicle and back to the speed monitor. The jamming laser beam disables the speed monitor for a time period sufficient to allow the motor vehicle driver to reduce the speed of the motor vehicle.
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Laakmann Peter
Zhang Yong Fang
Buczinski Stephen C.
Lidatek L.L.C.
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