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:
Apr. 27, 1999
Filed:
Nov. 26, 1996
Tommy King-Yuen Wong, Issaquah, WA (US);
Zoran Banjanin, Newcastle, WA (US);
Siemens Medical Systems, Inc., Iselin, NJ (US);
Abstract
An improved technique for providing persistence to velocity signals obtained by an ultrasound imaging system is disclosed. The velocity signals with appropriate persistence are then used to form an image on a display device so as to accurately depict fluid flow. The persistence technique intelligently decides whether or not to provide persistence to the velocity signals. In making these persistence determinations, the persistence technique not only avoids distorting the velocity values with corrupt signals, but also preserves directional flow information. The persistence technique can also make use of various thresholds to reduce errors (e.g., flash artifacts or random noise) as well as persistence of such errors.