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:
Sep. 05, 2006
Filed:
Oct. 17, 2001
Jean-francois Aubry, Bourg la Reine, FR;
Mathias A. Fink, Meudon, FR;
Mickaël Tanter, Paris, FR;
Jean-louis Thomas, Villejuif, FR;
Jean-Francois Aubry, Bourg la Reine, FR;
Mathias A. Fink, Meudon, FR;
Mickaël Tanter, Paris, FR;
Jean-Louis Thomas, Villejuif, FR;
Abstract
The invention concerns a method for focusing acoustic waves useful for obtaining an image of a field to be observed in a dissipative heterogeneous medium () around which acoustic transducers (T–Tn, T'–T′m) forming an imaging network and a target network. The method consists in following a training step during which pulse responses from the medium are measured between each transducer (Ti) of the imaging network () and several transducers (Tj) of the target network (); deducing therefrom reference signals to be emitted by the transducers of the imaging network to produce a focused acoustic pulse in each transducer of the target network, then cumulatively, in determining reference signals to be emitted to focus an acoustic pulse on predetermined points in the medium. Said reference signals are stored and used subsequently to generate an acoustic image of the medium.