Optics: measuring and testing – Velocity or velocity/height measuring – With light detector
Reexamination Certificate
2007-04-10
2007-04-10
Tarcza, Thomas H. (Department: 3662)
Optics: measuring and testing
Velocity or velocity/height measuring
With light detector
C356S028000
Reexamination Certificate
active
11227383
ABSTRACT:
A system for measuring velocity of a target is disclosed. In one embodiment, the system includes a laser device, a detector and a signal processor. The laser device produces a frequency-modulated laser beam, wherein the frequency-modulated beam is split into at least two laser beams, wherein a reflected beam comprising one split beam is directed to the target and reflected from the target. The detector detects a combination of the reflected beam and a reference beam comprising another split beam, wherein the reflected beam and the reference beam have unequal delays. The signal processor obtains velocity information from the combined beam by use of Doppler-shifted harmonics of the modulation frequency.
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Alsomiri Isam
Doppler Ltd.
Knobbe Martens Olson & Bear LLP
Tarcza Thomas H.
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