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. 12, 1995
Filed:
Nov. 12, 1993
Applicant:
Inventor:
Andreas Mueller, Nersingen, DE;
Assignee:
Daimler Benz AG, Stuttgart, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04B / ; H04B / ; H04Q / ;
U.S. Cl.
CPC ...
375224 ; 375343 ; 375365 ; 370 20 ; 370 21 ; 3701051 ;
Abstract
A multi-channel transmission system operates by transmitting digitally-coded signals modulated in sequential symbol blocks at a plurality of carrier frequencies, and receiving and demodulating the digitally-coded signals, wherein, in the transmitting, a test signal is generated in at least one symbol block, the test signal containing at least one periodically continued, differentially coded, self-orthogonal sequence of a constant amplitude modulated to a part of the plurality of carrier frequencies within a symbol block in differential coding.