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.

Date of Patent:
Apr. 24, 1979

Filed:

Mar. 11, 1977
Applicant:
Inventors:

Leon Masliah, Vaucresson, FR;

Jean F Morand, Paris, FR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01S / ;
U.S. Cl.
CPC ...
343-75 ; 343 / ; 343 175 ;
Abstract

A process and apparatus for the detection of an object in air, wherein a beam of electromagnetic radiation is emitted, the reflected beam is received, the frequency of the reflected beam being varied discontinuously over a frequency band. The amplitude of the energy of the beam received for the various frequencies of the emitted beam is measured so as to utilize, for the detection of the object, the particular frequency or frequencies of the beam for which the reflected beam possesses a substantially higher energy than the energy of the beam reflected at the other frequencies.


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