Multiple-field-of-view scannerless optical rangefinder in high ambient background light

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United States of America Patent

PATENT NO 8908159
SERIAL NO

13105497

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Abstract

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A multiple-field-of-view scannerless optical rangefinder operating in pulsed Time-Of-Flight operation for use in high ambient background light is described. The rangefinder comprises an optical emitter having a LED light source and driver electronics, emitting a train of light pulses having a broad field-of-illumination (FOI); a multi-channel optical receiver (MCOR) for detecting optical return signals, an overall field-of-view (FOV) encompassing each channel instantaneous FOV, the FOI encompassing the overall FOV, the multi-channel optical receiver having analog front-end electronics; an Analog-to-Digital Converter (ADC) for receiving and converting the waveforms into digital format; a control and processing unit (CPU) for generating a pulse trigger signal, sending a synchronization trigger signal to the MCOR for starting the detection of the optical return signals, and for processing the waveforms in digital format; a data interface; wherein a peak present in any of waveforms is a signature of an object located within the instantaneous FOV.

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Patent Owner(s)

Patent OwnerAddress
LEDDARTECH INCQUÉBEC QUÉBEC G1P 2J7

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Mimeault, Yvan Québec, CA 32 1093

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