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:
Dec. 19, 2006
Filed:
Dec. 07, 2000
Andreas Hecht, Eichenau, DE;
Andreas Hecht, Eichenau, DE;
Rohde & Schwarz GmbH & Co. KG, Munich, DE;
Abstract
A system and method for generating an I/Q signal for an I/Q modulator (). The signal is composed of two or more data streams, which have been edited according to identical or different modulation methods. A known modulation encoder is used to generate corresponding digital I/Q values from a first inputted digital data stream. The I/Q values then undergo a digital-analogue conversion () that generates the corresponding analogue I/Q signals. The system includes an additional modulation generator that calculates digital I/Q values, or generates I/Q values from an additional inputted digital data stream. The digital I/Q values of the modulation encoder and the digital I/Q values of the modulation generator () are then added together, using digital adders (A) located upstream of the digital-analogue converter ().