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:
Nov. 12, 1985
Filed:
Jul. 13, 1983
Applicant:
Inventors:
Ryobun Tachita, Kawasaki, JP;
Tsutomu Yano, Kawasaki, JP;
Hiroshi Fukukita, Tokyo, JP;
Kuniaki Fukaya, Atsugi, JP;
Akira Fukumoto, Machida, JP;
Assignee:
Matsushita Electric Industrial Company, Ltd., Kadoma, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61B / ;
U.S. Cl.
CPC ...
128663 ;
Abstract
Ultrasonic echo signals are detected in phase and integrated with a period corresponding to an ultrasonic pulse. The integrated values are sampled and the difference between two integrated values is successively frequency-analyzed.