The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 20, 2001
Filed:
Mar. 23, 2000
Applicant:
Inventors:
Sigmund Manhart, Haar, DE;
Elke Schmidt, Oberkochen, DE;
Assignee:
DaimlerChrysler AG, Stuttgart, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01P 3/36 ;
U.S. Cl.
CPC ...
G01P 3/36 ;
Abstract
A velocity such as wind velocity is measured based on a Doppler shift of a backscattered or returned laser signal. The Doppler shift of the backscattered beam is determined from a change in the polarization state or intensity shift of the received or backscattered signal after it has passed through a polarization-dispersive element (PD) and through a polarization analyzer (PA). The electrical signals (I,and I,) generated from two partial beams provided by the polarization analyzer (PA) represent an the intensity shift. The signals are processed in a computer and the resulting information is displayed, for example.