Method and device for determining a distance from an object

Details Method and device for determining a distance from an object Method and device for determining a distance from an object

2010-02-01

2011-11-22

Alsomiri, Isam (Department: 3662)

Optics: measuring and testing

Range or remote distance finding

With photodetection

Reexamination Certificate

active

08064046

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.

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