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. 25, 1989

Filed:

Apr. 28, 1988
Applicant:
Inventor:

Yasushi Takeda, Brugg, CH;

Assignee:

Novatec S.A., Renens, CH;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01F / ;
U.S. Cl.
CPC ...
367 90 ; 7386125 ; 12866108 ;
Abstract

A measure window (29-30, FIG. 2d) is provided in a Doppler velocity profile (FIG. 2c) by deleting an initial section (T.sub.1) and a terminal section (T.sub.2) of each emission cycle of a train of ultrasound of a period T so as to conserve only the section (T.sub.o) which it is desirable to study. The conserved section (T.sub.o) is thereafter segmented into a certain number (N) of measure channels. The advantage of restricting the zone divided into channels to the part which is really useful is that the definition of the profile which is obtained is improved, even when the emitter-receptor of ultrasound is located at a relatively important distance in comparison with the depth of the zone which is studied.


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