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:
May. 12, 1992
Filed:
Dec. 10, 1990
Applicant:
Inventors:
Assignee:
Dornier GmbH, , DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01S / ; G01S / ; G01S / ;
U.S. Cl.
CPC ...
342119 ; 342 28 ; 342194 ;
Abstract
A sensing circuit is assumed to produce in phase and quadrature Doppler signals. The relative phase of these signals is used to determine the passage of object such that correctly related zero passages in the two signals are counted, and the count state within certain periods of time yields information to check the significance of signals as genuine Doppler signals.