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. 06, 1985
Filed:
Mar. 23, 1983
Applicant:
Inventors:
Hans Rehm, Munich, DE;
Horst Breitenfeld, Gauting, DE;
Assignee:
Siemens Aktiengesellschaft, Berlin and Munich, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03F / ; H03F / ;
U.S. Cl.
CPC ...
330261 ; 330310 ; 375-3 ; 307455 ;
Abstract
A circuit for amplifying electrical signals, particularly for devices for transmitting frequency-modulated emitter coupled logic (ECL) broad-band signals by means of coaxial lines utilizes a plurality of ECL logic elements as amplifier stages. The input of each logic element is connected to a bias voltage and is charged by means of a coupling capacitor with the signal to be amplified. The circuit amplifies electrical signals to ECL level with an improved signal pulse duty factor.