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:
Feb. 21, 1989
Filed:
Sep. 01, 1987
Applicant:
Inventor:
Tsuyoshi Yoshie, Ootawara, JP;
Assignee:
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
73602 ; 73620 ;
Abstract
An ultrasonic imaging apparatus includes a transducer probe having a plurality of transducer elements, an impedance converter provided in the transducer probe, a signal processor, and a signal cable connected between the signal processor and the transducer elements via the impedance converter. The impedance converter is a transistor emitter follower having an emitter resistor. The emitter resistor is not provided within the probe, but connected between the output terminal of the signal cable and the input terminal of the signal processor.