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:
Jan. 30, 2007
Filed:
Jul. 09, 2002
Applicants:
Jens Wildhagen, Weinstadt, DE;
Dietmar Schill, Winnenden, DE;
Inventors:
Jens Wildhagen, Weinstadt, DE;
Dietmar Schill, Winnenden, DE;
Assignee:
Sony Deutschland GmbH, Cologne, DE;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03C 1/52 (2006.01);
U.S. Cl.
CPC ...
Abstract
An AM simulcast broadcast signal combining a digital transmission signal and an analogue transmission signal in one transmission channel. The digital transmission signal is modulated to one sideband of a carrier of the transmission channel and a correcting signal (C) is modulated to the other sideband of the carrier of the transmission channel, which correcting signal (C) is determined so that the envelope demodulation of the transmission channel represents the analogue transmission signal.