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:
May. 05, 2015
Filed:
Dec. 16, 2011
Pylyp Ostrovskyy, Frankfurt, DE;
Johann Christoph Scheytt, Frankfurt, DE;
Jae Ho Jung, Daejeon, KR;
Bong Hyuk Park, Daejeon, KR;
Sung Jun Lee, Daejeon, KR;
Pylyp Ostrovskyy, Frankfurt, DE;
Johann Christoph Scheytt, Frankfurt, DE;
Jae Ho Jung, Daejeon, KR;
Bong Hyuk Park, Daejeon, KR;
Sung Jun Lee, Daejeon, KR;
Abstract
A digital polar modulator (DPM) for transforming a baseband signal into a modulated digital modulator output signal comprises an input unit and two low-pass delta-sigma modulators, a first one being connected downstream from the first input part and configured to provide at its output a first pulse train in dependence on an amplitude- modulating baseband signal component, and a second one being connected downstream from the second input part and configured to provide at its output a multilevel quantized signal in dependence on a phase modulating baseband signal component; a multiphase generator, which is configured to provide a set of square-wave carrier signals having a common carrier frequency and exhibiting discrete phase shifts with respect to each other; a multiplexer, which is configured to provide a multiplexer output signal that is formed by switching, in dependence on a signal received at a select input as a function of time, between selected ones of the carrier signals; and a combiner unit.