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:
Feb. 04, 1986
Filed:
Mar. 11, 1983
Applicant:
Inventors:
Wolfgang Nolde, Hamburg, DE;
Winfried Jansen, Hasloh, DE;
Wolfdietrich G Kasperkovitz, Eindhoven, NL;
Assignee:
U.S. Philips Corporation, New York, NY (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H04B / ;
U.S. Cl.
CPC ...
455208 ; 455192 ; 455261 ;
Abstract
The invention relates to a circuit for an FM-receiver having a very low intermediate frequency and a tuning frequency-independent amplitude of the LF output signal. The oscillator frequency is controlled in such a way by a reactance circuit that frequency swing reduction occurs. In addition, a reactance circuit is described by means of which a constant fine tuning slope can be obtained during the capacitive tuning of the oscillator circuit.