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. 01, 2012
Filed:
Aug. 07, 2007
Shin-ichiro Umemura, Hachioji, JP;
Yuichi Miwa, North Bethesda, MD (US);
Takashi Azuma, Kawasaki, JP;
Takashi Sugiyama, Nagareyama, JP;
Hiroshi Kuribara, Abiko, JP;
Shin-ichiro Umemura, Hachioji, JP;
Yuichi Miwa, North Bethesda, MD (US);
Takashi Azuma, Kawasaki, JP;
Takashi Sugiyama, Nagareyama, JP;
Hiroshi Kuribara, Abiko, JP;
Hitachi Medical Corporation, Tokyo, JP;
Abstract
An ultrasonograph capable of generating a transmission beam having a uniform width over a wide range in an ultrasonic wave propagation direction is provided. A weighted mean value of a plurality of transmission delay time values corresponding to focal lengths of transmission pulse waves set in the ultrasonic wave propagation direction is calculated for each element constituting a transmission aperture and used as the delay time for the element when waves are transmitted. As the weight used for obtaining the weighted mean value, a transmission effective aperture width according to each transmission focal length is selected, and a weight in the direction of the transmit aperture realizing the width is calculated and is used in a focal length direction.