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:
Feb. 18, 2003
Filed:
Nov. 26, 2001
Applicant:
Inventors:
Philippe Barricau, Castelnau d'Estrefonds, FR;
André Mignosi, Toulouse, FR;
Christine Lempereur, Balma, FR;
Jean-Michel Mathe, Fourquevaux, FR;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01P 3/36 ;
U.S. Cl.
CPC ...
G01P 3/36 ;
Abstract
A method and device for measuring the speed of at least one object by Doppler effect, whereby the light diffused by an object illuminated by a laser sheet is transmitted to a CCD video camera by spectral filtering means which are substantially tuned to the laser illumination frequency, means being provided to generate reference monochromatic luminous fluxes having frequencies which are different from the laser illumination frequency by fixed known amounts, and the reference luminous fluxes being transmitted to the CCD video camera.