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:
Nov. 02, 1999
Filed:
Feb. 25, 1997
Applicant:
Inventors:
Thomas Hilpert, Denzlingen, DE;
Stefan Mueller, Freiburg, DE;
Assignee:
Deutsche ITT Industries, GmbH, Freiburg, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N / ;
U.S. Cl.
CPC ...
348484 ; 348738 ; 348473 ;
Abstract
A circuit for decoding additional information in a composite signal, the circuit having a filter device for separating a signal range in the composite signal, which includes the additional information in coded form. An adaptive decoding device is controlled by a signal quality parameter which is determined in an additional circuit from the respective reception state of the composite signal.