Patent · US Active

Method and system for processing laser signal taken by laser device

US12235394B2 · kind B2 · utility

0Cited by

6References

20Claims

0Family size

Assignee

APTIV TECHNOLOGIES AG · BB

Inventors

Roman Dietz · Berlin, DE
Denis Rainko · Essen, DE
Geng Fu · Clifton Park, US
Ali Haddadpour · Boston, US

Key dates

Filing date	Nov 12, 2020
Grant date	Feb 25, 2025
Priority date	—
Expiry date	Dec 12, 2043

Classification

Technology area (CPC G)Physics
CPC primaryG01S17/931
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

Described are techniques for processing a laser signal to illuminate an external scene that is sectored in pixels by a laser device. This includes frequency modulating a laser signal in up and down-chirps, illuminating the external scene, receiving a reflected laser signal, measuring an up-beat signal, measuring a down-beat signal, simultaneously illuminating the external scene with the up-chirp and with the down-chirp for at least one pixel, and amplitude modulating the modulated laser signal of at least two adjacent pixels, so that the calculating unit can distinguish the reflected laser signals of two adjacent pixels. This way, in order to allow for fast scanning of a single frame, up- and down-chirps are sent out simultaneously to scan a complete pixel row or line within one ramp without any waiting time and without any chirp reset on each pixel.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.