Patent
Active night vision system for vehicles employing anti-blinding scheme
TLDR
In this article, the controller adjusts the pulse phase of the first light source to be exactly out-of-phase with that of the oncoming vehicle since the pulsed timing of the NIR light source is known upon detection of the opposing vehicle's trigger light source.Abstract:
A night vision system for a vehicle includes a pulsed light source for illuminating a region proximate the vehicle and a secondary trigger light source operating at a predetermined pulse timing and second wavelength. A light sensor detects light at the second wavelength. The trigger light pulses are used to indicate the pulse timing of each respective vehicle's primary NIR light source. Upon detecting another vehicle's trigger light source, the controller adjusts the pulse phase of the first light source to be exactly out-of-phase with that of the oncoming vehicle since the pulsed timing of the oncoming vehicle's NIR light source is known upon detection of the opposing vehicle's trigger light source. Each vehicle can then adjust its primary light source to be out-of-phase with the other vehicle and, hence, non-interfering.read more
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Internet appliance system and method
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Method and system for detecting objects external to a vehicle
TL;DR: In this paper, a method for obtaining information about objects in the environment outside of and around a vehicle and preventing collisions involving the vehicle includes directing a laser beam from the vehicle into the environment, receiving from an object in the path of the laser beam a reflection of the LR at a location on the vehicle, and analyzing the received LR reflections to obtain information about the object from which the LR is being reflected.
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Weather monitoring techniques
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Proceedings ArticleDOI
Pedestrian detection and tracking with night vision
Fengliang Xu,Kikuo Fujimura +1 more
TL;DR: A two-step detection/tracking method for pedestrian detection and tracking using a night vision video camera installed on the vehicle to deal with the nonrigid nature of human appearance on the road is proposed.
Patent
Vehicular environment scanning techniques
TL;DR: In this paper, a method for creating and managing a digital map for use by vehicles and including information relating to travel lanes on which the vehicles travel includes illuminating the environment outside of and around the vehicle with infrared illumination in an eye-safe part of the infrared spectrum as the vehicle is traveling on a travel lane to be mapped.
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Patent
Method for controlling a light source in a night vision surveillance system
TL;DR: In this paper, a method for controlling a light source in a night vision system is presented, where a pulse width Tp = 2(d−d1)/c, where c is the light speed, according to parameters of a desired observing distance d and a shortest distance d1 of the back-scattering light that enters the light sensor, such as a low-light-level camera.
Patent
Motor vehicle collision avoidance signalling device
TL;DR: In this article, a device for emitting signals from a vehicle indicating the type vehicle, its operating status and a safe following distance to be observed by a following vehicle is presented, where a laser beam source is mounted preferably at a location on an upper portion of the vehicle which emits the signal.
Patent
Multi-pulse, multi-return, modal range processing for clutter rejection
TL;DR: In this article, a laser rangefinding system utilizes multiple pulse, multiple return, modal range processing for clutter rejection, and each return signal above a predetermined threshold is added as a count to a count table within a selected bin representing the range of the return signal.
Patent
Apparatus and method for intensifying illumination brightness by time-superposing multiple pulsed light sources
TL;DR: In this article, a controller for sequentially driving each of the light sources at a high power above their respective maximum rated power, to produce a respective light beam for each light source, and for leaving the remaining light source at a low power below their respective max-rated power, such that the time-average of the high and low power levels are set to a predetermined value for each source.
Patent
Target designation system
TL;DR: In this paper, a system including a pulsed laser for illuminating targets is described, where a detector has shutter synchronized by a radio link from the laser, so that the shutter allows the detector only to be energized when the laser pulses.