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:
Oct. 24, 1995
Filed:
Aug. 10, 1994
Applicant:
Inventors:
Djahanyar Chahabadi, Hildesheim, DE;
Lothar Vogt, Hohenhameln, DE;
Assignee:
Robert Bosch GmbH, Stuttgart, DE;
Primary Examiner:
Int. Cl.
CPC ...
H03D / ; H03D / ;
U.S. Cl.
CPC ...
329349 ; 329361 ; 375317 ; 455337 ;
Abstract
In an amplitude demodulator for radio receivers, an intermediate frequency signal is converted into a digital intermediate frequency signal. The digital intermediate frequency signal is mixed into the baseband and amplitude demodulated. Either the intermediate frequency signal, or the amplitude demodulated signal, is controlled and amplified or attenuated so that the DC component of the amplitude demodulated signal is kept constant.