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:
Jun. 19, 1984
Filed:
Sep. 27, 1982
Applicant:
Inventor:
Leonard D Seader, Maple Valley, WA (US);
Assignee:
Advanced Technology Laboratories, Inc., Bellevue, WA (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61B / ; G01N / ;
U.S. Cl.
CPC ...
128660 ; 73631 ; 73632 ;
Abstract
The wide dynamic range ultrasound receiver utilizes a multi-stage logarithmic amplifier in order to logarithmically amplify a returned echo signal. The output of the returned echo signal from the logarithmic amplifier is simply added to a saw-tooth wave Time Gain Control (TGC) signal. Thus, the wide dynamic range of the returned echo signals is simply converted into a video display.