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:
Jul. 02, 1991
Filed:
Aug. 25, 1989
Applicant:
Inventor:
Orest Fedan, Belmont, MA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03B / ; H03L / ;
U.S. Cl.
CPC ...
331183 ; 307547 ;
Abstract
Disclosed is an oscillator circuit comprised of a sharp bandpass filter having an input and an output; a linear gain stage having an input and an output, the output of the sharp bandpass filter being connected to the input of the linear stage; a limiter having an input and an output, the output of the linear stage being connected to the input of the limiter; and a feedback loop having an input and an output, the output of the limiter being connected to the input of the feedback loop and the output of the feedback loop being connected to the input of the sharp bandpass filter, wherein the improvement being comprised of the limiter being a symmetrical active clamp.