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, 1984
Filed:
Aug. 19, 1981
Applicant:
Inventor:
Gary L Engle, Fair Oaks, CA (US);
Assignee:
General Electric Company, Rancho Cordova, CA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03G / ;
U.S. Cl.
CPC ...
330281 ; 330129 ;
Abstract
In a system such as an ultrasonic scanner in which a signal must be variably amplified with time in response to a time gain control (TGC) signal, automatic noise rejection is provided by periodically comparing amplified noise with a threshold value above which noise interferes with signal analysis. TGC signal control of a variable amplifier is permitted so long as the amplified noise is less than the threshold value. A maximum control voltage, V.sub.n, is applied to the variable amplifier when the amplified noise exceeds the threshold level.