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:
Nov. 02, 2021
Filed:
Jul. 17, 2014
Applicant:
Hitachi, Ltd., Tokyo, JP;
Inventor:
Shinta Takano, Tokyo, JP;
Assignee:
HITACHI, LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61B 8/00 (2006.01); A61B 8/08 (2006.01); G01S 7/52 (2006.01); A61B 8/14 (2006.01); G01S 15/89 (2006.01);
U.S. Cl.
CPC ...
A61B 8/4488 (2013.01); A61B 8/14 (2013.01); A61B 8/5269 (2013.01); G01S 7/52019 (2013.01); G01S 7/52046 (2013.01); G01S 15/8915 (2013.01); G01S 15/8997 (2013.01); G01S 15/8906 (2013.01);
Abstract
A transmitting beamformer performs convergence transmission that forms a transmission focus of an ultrasonic beam in a subject. A receiving beamformer comprises a virtual sound source method-based delay amount calculation part that obtains delay amount of a received signal with regarding the transmission focus as a virtual sound source, and a correction operation part that corrects the delay amount obtained by the virtual sound source method-based delay amount calculation part depending on position of imaging point. Delay amounts can be thereby obtained with good accuracy for imaging points in a wide area.