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:
Dec. 02, 1986
Filed:
Jan. 10, 1986
Applicant:
Inventors:
Helmut Moser, Heilbronn, DE;
Karl Militzer, Heilbronn, DE;
Assignee:
Telefunken Electronic GmbH, Heilbronn, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F / ; H01J / ;
U.S. Cl.
CPC ...
330 59 ; 2502 / ;
Abstract
A receiver amplifier for amplifying a photoelectric current produced by a light-sensitive semiconductor component. The amplifier includes an amplifier transistor, a capacitor connected between the light-sensitive conductor component and the amplifier transistor for isolating signals with a frequency below a certain threshold delivered by the semiconductor components from the amplifier transistor, and a second transistor connected to the amplifier transistor for producing a current which compensates for changes in the current produced by the light-sensitive semiconductor component in response to light pulses.