Patent · US Active

Alternating power-level scanning for time-of-flight lidar systems

US11802970B2 · kind B2 · utility

0Cited by

3References

18Claims

0Family size

Assignee

APTIV TECHNOLOGIES AG · BB

Inventors

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

Key dates

Filing date	Jul 8, 2020
Grant date	Oct 31, 2023
Priority date	—
Expiry date	Jul 9, 2042

Classification

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

Abstract

This document describes techniques and systems to alternate power-level scanning for ToF lidar systems. The described lidar system transmits an initial signal having a first power level of an alternating pattern of power levels. The initial signal is associated with an initial pixel of consecutive pixels. The lidar system then transmits a subsequent signal, which is associated with a subsequent pixel of the consecutive pixels, having a second power level. The transmission of the initial signal and the subsequent signal with the alternating pattern of power levels limits a total power level emitted by the lidar system during a time interval to comply with safety regulations. The alternating pattern of power levels also permits the lidar system to switch between a long-detection range and a short-detection range for consecutive pixels.

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