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. 12, 2022
Filed:
Mar. 22, 2019
Applicant:
Hitachi, Ltd., Tokyo, JP;
Inventors:
Assignee:
FUJIFILM Healthcare Corporation, Kashiwa, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61B 8/00 (2006.01); A61B 8/08 (2006.01); G01S 7/52 (2006.01); G01S 15/89 (2006.01); A61B 8/13 (2006.01); A61B 8/06 (2006.01);
U.S. Cl.
CPC ...
A61B 8/4444 (2013.01); A61B 8/4488 (2013.01); A61B 8/5207 (2013.01); A61B 8/5269 (2013.01); A61B 8/56 (2013.01); A61B 8/06 (2013.01); A61B 8/13 (2013.01); A61B 8/488 (2013.01); G01S 7/52033 (2013.01); G01S 15/8915 (2013.01);
Abstract
A plurality of transmission and reception circuits are connected to a plurality of vibration elements. The transmission and reception circuit includes a basic delay circuit and a fine delay circuit. The basic delay circuit delays a transmission signal and a reception signal for sub beamforming. The fine delay circuit is configured to be capable of performing delay finer than that of the basic delay circuit. A quantized delay error is compensated for by the fine delay circuit at the time of transmission.