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:
Sep. 17, 1991
Filed:
Mar. 20, 1990
Applicant:
Inventor:
Antoine Collet-Billon, Paris, FR;
Assignee:
U.S. Philips Corporation, New York, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06K / ; G01V / ;
U.S. Cl.
CPC ...
382 54 ; 73602 ; 73620 ; 73626 ; 1286601 ; 36441325 ; 367 45 ;
Abstract
An ultrasonic echographic imaging device for two dimensions (x, y), includes an adaptive filter for reducing the interference noise in the images obtained. A first circuit differentiates the signal (E(x, y)) applied to the adaptive filter and a second circuit forms the weighted sum of the signal (S(x, y)) leaving the adaptive filter (200) and the signal (dE(x, y)/dy) output of the differentiating circuit.