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:
Jul. 31, 2018
Filed:
May. 05, 2014
Alcatel Lucent, Boulogne Billancourt, FR;
Luc Dartois, Nozay, FR;
Alcatel Lucent, Boulogne-Billancourt, FR;
Abstract
A signal modulation device comprising: an input for receiving a complex input signal () comprising an in-phase component signal and a quadrature-phase component signal, a sigma-delta modulator () for modulating the complex input signal at an oversampling clock rate (F1) into an intermediary signal (), a numerical oscillator () for generating a phase signal () oscillating at a selected carrier frequency (FC), wherein the phase signal takes a finite number of quantized states, and a symbol mapping table () comprising a predefined quantized symbol for each quantized complex state of the intermediary signal and each quantized state of the phase signal, and operates at each oversampling clock period (F1) to select a quantized symbol () as a function of a current quantized complex state of the intermediary signal () and a current quantized state of the phase signal ().