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:
Jan. 19, 1982
Filed:
Dec. 31, 1979
Applicant:
Inventors:
William L Konrad, Niantic, CT (US);
William L Clay, Stonington, CT (US);
Assignee:
The United States of America as represented by the Secretary of the Navy, Arlington, VA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H03F / ; H03F / ; H03K / ;
U.S. Cl.
CPC ...
307529 ; 307490 ; 332 / ;
Abstract
A summing amplifier which sums and amplifies two input signals and combines them in a single load or output device. It includes a bridge circuit using either 4 NPN or 4 PNP type transistors. Two transformers are used to achieve input relationship. A square wave of different frequency is applied to each of the two input terminals and the sum of the two input frequencies is converted to a three level waveform of constant amplitude but with on-time variations periodic at the difference frequency of the two input frequencies.