Patent · US Active

Method and device for determining a distance from an object

US8064046B2 · kind B2 · utility

30Cited by

3References

16Claims

0Family size

Assignee

FARO Technologies, Inc. · US

Inventors

Martin Ossig · Tamm, DE
Philipp Schumann · Stuttgart, DE

Key dates

Filing date	Feb 1, 2010
Grant date	Nov 22, 2011
Priority date	—
Expiry date	Mar 4, 2030

Classification

Technology area (CPC G)Physics
CPC primaryG01S17/42
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A method for determining a distance from an object may include emitting an emission light beam from a light emitter, receiving a reception light beam at a light receiver, and determining the distance on the basis of a propagation time of the emission and reception light beams. The reception light beam may arise as a result of reflection of the emission light beam at the object. The emission light beam may be amplitude-modulated with a rectangular-waveform modulation signal. The modulation signal may have a multiplicity of rectangular pulses which occur in a multiplicity of groups. The groups may occur at varying temporal intervals with respect to one another and have changing numbers of rectangular pulses.

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