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:
Aug. 27, 2002
Filed:
Mar. 22, 1999
Applicant:
Inventors:
Herrmann Hampel, Grosshabersdorf, DE;
Johannes Huber, Langensendelbach, DE;
Klaus Lehmann, Hoechstadt/Aisch, DE;
Thomas Wagner, Kammerstein, DE;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 2/728 ;
U.S. Cl.
CPC ...
H04L 2/728 ;
Abstract
The system achieves high bandwidth efficiency and a low bit and message error probability in digital data transmission. The system, with its associated methods and devices, obviates carrier synchronization or clock synchronization. Digital multicarrier transmission with coding and decoding is carried out on the basis of block synchronization, wherein, for carrier modulation, the modulation of the subcarriers is carried out differentially in coded form in the direction of the subcarriers, that is to say in the frequency domain.