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. 20, 1994
Filed:
Aug. 28, 1991
Ryoichi Kanda, Ootawara, JP;
Yoichi Sumino, Nishinasuno, JP;
Kabushiki Kaisha Toshiba, Kanagawa, JP;
Abstract
In an ultrasonic diagnostic apparatus, ultrasonic propagation time differences contained in echo signals reflected from a biological body under medical examination are corrected by comprising: a quadrature phase detecting unit for quadrature-phase-detecting the echo signals derived from an ultrasonic transducer probe to obtain as phase data a quadrature signal component and an in-phase signal component; a delay-time correcting value calculating unit for calculating at least one of delay-time correcting values used for the energizing signals and the echo signals based upon both of the quadrature signal component and in-phase signal component; and, a delay controlling unit for controlling at least one of delay time data previously given to the energizing signals anti echo signals based upon one of calculated delay-time correcting values.