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:
May. 16, 2023
Filed:
May. 09, 2019
Koninklijke Philips N.v., Eindhoven, NL;
Jean-Luc Francois-Marie Robert, Cambridge, MA (US);
Sheng-Wen Huang, Ossining, NY (US);
Francois Guy Gerard Marie Vignon, Andover, MA (US);
Jun Seob Shin, Winchester, MA (US);
Seungsoo Kim, Andover, MA (US);
Hua Xie, Cambridge, MA (US);
Man Nguyen, Melrose, MA (US);
Faik Can Meral, Mansfield, MA (US);
William Tao Shi, Wakefield, MA (US);
Carolina Amador Carrascal, Eindhoven, NL;
KONINKLIJKE PHILIPS N.V., Eindhoven, NL;
Abstract
In an ultrasound imaging system which produces synthetically transmit focused images, the multiline signals used to form image scanlines are analyzed for speed of sound variation, and a mapof this variation is generated. In a preferred implementation, the phase discrepancy of the received multilines caused by speed of sound variation in the medium is estimated in the angular spectrum domain for the receive angular spectrum. Once the phase is estimated for all locations in an image, the differential phase between two points at the same lateral location, but different depth, is computed. This differential phase is proportional to the local speed of sound between the two points. A color-coded two- or three-dimensional mapis produced from these speed of sound estimates and presented to the user.