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. 11, 2001
Filed:
Apr. 01, 1999
Applicant:
Inventor:
Luc Dartois, Carrieres Sous Poissy, FR;
Assignee:
Alcatel, Paris, FR;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 2/704 ; H04L 2/712 ; H04L 2/720 ;
U.S. Cl.
CPC ...
H04L 2/704 ; H04L 2/712 ; H04L 2/720 ;
Abstract
In a broadband multicarrier modulator, all processing within a modulator is replaced by a pre-computed table so that a modulated signal can be produced as a function of the modulating signal merely by reading the table. The carrier frequency of the modulator is even programmable. The size of the pre-computed table is reduced by using an automation. With this automation the address for reading the table at a given time depends on preceding values of the modulating signal. By reading the table on a time sharing basis it is even possible, with a single modulator, to perform the work of several modulators. A multicarrier modulator is then easily implemented.