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:
May. 19, 1987
Filed:
Mar. 14, 1984
Applicant:
Inventors:
Heinz Lindenmeier, 8033 Planegg, DE;
Leopold M Reiter, 8031 Gilching, DE;
Gerhard Flachenecker, D 8012 Ottobrunn, DE;
Assignee:
Other;
Primary Examiner:
Int. Cl.
CPC ...
H04B / ;
U.S. Cl.
CPC ...
455150 ; 455291 ; 455293 ; 455311 ; 455333 ; 455341 ;
Abstract
A tunable receiver input circuit consists of an emitter follower amplifying circuit with a resonant circuit connected between emitter and ground. The impedance of the resonant circuit is high at frequencies away from the resonant frequency. The mixer circuit is connected to the collector of the amplifying circuit, so that unwanted second and third order noise products are suppressed.