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:
Aug. 12, 1986
Filed:
Nov. 01, 1984
Applicant:
Inventor:
Leonard A Ferrari, San Clemente, CA (US);
Assignee:
The Regents of the University of California, Berkeley, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61B / ;
U.S. Cl.
CPC ...
128660 ;
Abstract
A method and apparatus is disclosed which improves the image quality obtained in a system for displaying frequency demodulated acoustic images of an object. A squelch signal is added to the input of a frequency demodulator. When the 'echo signal' represents merely high frequency noise input to the demodulator, the squelch signal overrides the noise. A uniform level is thereby provided to the image display devices of the system which substantially improves output image quality.