A distance measuring apparatus measure the distance to a target by measuring the time required for an emitted beam of light to go to and return from the target. The light receiving section of the apparatus converts the received light into an electric signal. The clamp/inversion section of the apparatus clamps and inverts the output of the light receiving section. The comparing section of the apparatus compares the output of the light receiving section and the output of the clamp/inversion sectio...

A vehicle wheel alignment system utilizing one or more optical imaging sensors to acquire either images gradient brightness optical targets affixed to vehicle wheels, or direct images, of the vehicle wheels, from which three-dimensional information related to one or more vehicle wheel alignment angles can be obtained.

The invention relates to a device for distance measurement, comprising a housing (24) which is provided with an integrated emitting unit (32) for a measuring signal (34, 36) and a receiving unit (38) for the measuring signal (34, 36) returned from a target object (16), and an evaluation unit (46) for determining the distance (d) between at least one reference point (14) of the housing (24) and the target object (16, 18), a display device (50) which reproduces said distance (d), and at least one ...

This invention relates to a system and method for suppressing external interference in radar data provided by a plurality of sensors from a main sensor array, the data being pre-processed. The noise suppression system includes a first processing module and a second processing module. The first processing module receives the radar data and produces matched radar data while the second processing module receives the radar data and produces mis-matched radar data. The system further includes a beamf...

The invention relates to a method for measuring distances, based on the phase measurement of an optical measuring beam that is reflected or scattered by an object, on which the beam is sighted. According to said method, the measurement object is exposed to an optical measuring beam of modulated intensity emitted by a measuring device and is converted into electrical measurement signals. The signals are then compared with a reference signal that is generated from the detection and conversion of a...

A laser transponder for disabling a laser-based speed monitor 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 that includes monitor pulse trains emitted at a first frequency, while the jamming laser beam is in the shape of a jamming signal that includes jamming pulse trains emitted at a second frequency.

A system for processing radar data from two or more areas of interest is provided, such as for simultaneously processing vehicle speeds in the opposite lane in front of the patrol vehicle and in the opposite lane behind the patrol vehicle. The system includes an antenna signal processor that receives radar data from one or more radar antennae and generates speed data for a first vehicle travelling in a first direction relative to a radar observation point and a second vehicle travelling in a sec...

A plurality of reflective points in front of one's vehicle in a traveling direction are detected by a radar device. The plurality of detected reflective points are grouped based on a predetermined standard, and the grouped reflective points are regarded as detection objects. Relative speeds of the detected detection objects are measured with respect to one's vehicle. Types of the detection objects are determined based on the measured relative speeds.

An electrically heated resistance element disposed on axis within a gold coated reflector, which collects the radiated infrared energy from the resistance element and shapes it to a desired beam, provides a shaped high intensity source of infrared radiation which is modulated by a rotating modulator positioned in front of the reflector.

An aerial vehicle speed correlation method for two-dimensional visual reproduction of laser radar images of the present invention is capable of altering and controlling the output timing of the invention's laser radar system rated output lines based on the moving distance and the speed of an aerial vehicle. The speed error correlation method of the present invention is not limited to outputting one output line for every scanned line (N) for reducing the accumulation of geometric distortion error...