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:
Oct. 13, 2009
Filed:
Dec. 21, 2006
John W. Sliwa, Jr., Los Altos, CA (US);
Prasanna Hariharan, Rockville, MD (US);
Ronald A. Robinson, Germantown, MD (US);
Matthew R. Myers, Potomac, MD (US);
Subha Maruvada, North Bethesda, MD (US);
Rupak K. Banerjee, Mason, OH (US);
Gerald R. Harris, Rockville, MD (US);
John W. Sliwa, Jr., Los Altos, CA (US);
Prasanna Hariharan, Rockville, MD (US);
Ronald A. Robinson, Germantown, MD (US);
Matthew R. Myers, Potomac, MD (US);
Subha Maruvada, North Bethesda, MD (US);
Rupak K. Banerjee, Mason, OH (US);
Gerald R. Harris, Rockville, MD (US);
St. Jude Medical, Atrial Fibrillation Division, Inc., St. Paul, MN (US);
The United States of America as represented by the Secretary Department of Health and Human Services, Washington, DC (US);
The University of Cincinnati, Cincinnati, OH (US);
Abstract
A system for optically characterizing an acoustic beam generally includes an immersant, which is an immersion medium seeded with a plurality of seed particles that respond to illumination with fluorescence indicative of at least one parameter of the immersant such as flow or temperature. Optical transmitters illuminate the immersant slicewise, and optical receptors receive the fluorescence in order to generate a three-dimensional map of the parameter over time. A processor back-calculates one or more characteristics of an acoustic beam that results in the map. The processor initially generates a behavior model of an acoustic beam propagating in the immersant by utilizing initial guesses for the characteristics. The initial guess model is compared to the map, and an optimization routine is used to refine the initial guesses. The process repeats iteratively with refined guesses until the difference between the model and the map is minimized.