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. 01, 2008
Filed:
Jun. 23, 2005
Johannes Wilhelmus Eikenbroek, Emmen, NL;
Johannes Wilhelmus Eikenbroek, Emmen, NL;
Telefonaktiebolaget LM Ericsson (publ), Stockholm, SE;
Abstract
A method of generating a quantized signal in a Sigma-Delta modulator () comprises the steps of feeding a modulator input signal to a quantizer () via at least one integrator (); generating in the quantizer () a quantized signal; feeding back the quantized signal to be subtracted from the modulator input signal; and generating a dither signal to be applied to a point in the Sigma-Delta modulator. The dither signal is applied to a selected one of a number of different points () in the Sigma-Delta modulator () in dependence of a control signal. In this way a method of generating a quantized signal in a Sigma-Delta modulator is provided which provides optimal results for different modes of the application, such as phase modulation mode and frequency modulation mode in a Bluetooth receiver.