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. 05, 1991
Filed:
May. 04, 1990
Odile Bonnefous, Nogent sur Marne, FR;
U.S. Philips Corporation, New York, NY (US);
Abstract
A device for the measurement of the speed of blood flows on the basis of a sequence of N successive echographic signals, comprising an M-point fixed-echo elimination device (200), followed by a unit (300) for measuring the speed by correlation/summation/interpolation of the N-M+1 independent signals supplied by the fixed-echo elimination device (220). In accordance with the invention, the measuring unit (300) comprises N.sub.F parallel processing channels (310j), each of which is formed by a filter (311j), a memory (312j) for storing the filtered N-M+1 signals, and a corrlation device (313j) which supplies N-M intercorrelation functions, and on the other hand an adder (320) which forms the mean value of the N.sub.F (N-M) intercorrelation functions obtained, an estimate of the relevant speed being supplied by an interpolation circuit (330) acts on the mean intercorrelation function.
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