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:
Jan. 12, 1999
Filed:
Sep. 30, 1997
Qinglin Ma, Bothell, WA (US);
John C Lazenby, Fall City, WA (US);
Siemens Medical Systems, Inc., Iselin, NJ (US);
Abstract
A fuzzy logic tissue/flow determination system receives echo amplitude, color amplitude, and velocity signals from an ultrasound imaging system. These values are applied to a set of fuzzy rules which quantify the amount by which the signal values vary from preset thresholds. The outputs of the fuzzy rules provide an indication of the plausibility that the echo signals represent a tissue or flow condition. The outputs from all the fuzzy rules are combined and de-fuzzified to produce a combined plausibility of the signals representing either a tissue or flow condition. The tissue/flow decision is made based on which plausibility is larger.