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:
Sep. 30, 1997
Filed:
Mar. 21, 1994
Applicant:
Inventors:
Jurgen Kasser, Diekholzen, DE;
Matthias Herrmann, Hildesheim, DE;
Assignee:
Blaupunkt-Werke GmbH, Hildesheim, DE;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04H / ;
U.S. Cl.
CPC ...
381-4 ; 381 13 ; 4551613 ; 4552262 ; 455296 ;
Abstract
In a circuit for deriving at least one quality signal that is dependent on the quality of a received signal, where the received signal is demodulated, a first auxiliary signal which is dependent on the field strength, and a second or further auxiliary signal, are derived from the demodulated signal. The auxiliary signal and the second or further auxiliary signal are combined to derive the quality signal.