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:
Dec. 24, 1990
Filed:
Oct. 06, 1988
Ikuo Sakai, Kawasaki, JP;
Nobuaki Furuya, Kawasaki, JP;
Yasuhiro Nakamura, Tokyo, JP;
Masami Kawabuchi, Yokohama, JP;
Abstract
Pulses of an ultrasonic wave beam are emitted into a body at a predetermined repetition period. Echo pulses of the ultrasonic wave beam are received via a plurality of different channels. Each of the received pulses is converted simultaneously into corresponding electric signals of the respective channels. A time-dependent change in a variation between the electric signals of the respective channels is derived. A component of a speed of moving matter within the body in a predetermined direction is calculated on the basis of the derived time-dependent change. The moving matter causes the echo pulses. The predetermined direction is perpendicular to a direction of travel of the ultrasonic wave beam pulses.