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:
Nov. 17, 2009
Filed:
Sep. 14, 2007
Andreas Schmid, Duisburg, DE;
Andreas Schmid, Duisburg, DE;
Infineon Technologies AG, Neubiberg, DE;
Abstract
This disclosure relates to systems and methods for polar modulation without analog filters. Digitals filters, a second order hold interpolator and a reconfigurable third order noise shaper can be used instead of the analog filters used in conventional polar modulators. The polar modulator receives either receives the input in polar coordinates or converts the signal into polar phase and amplitude components. The phase and amplitude components are processed separately using digital signal processing components including digital filters, PLL, interpolator and noise shaper. The processed phase and amplitude components are then mixed to generate the modulated signal.