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:
Jun. 05, 2007
Filed:
Jun. 21, 2001
Dietmar Lipka, Berg, DE;
Dietmar Lipka, Berg, DE;
Telefonaktiebolaget LM Ericsson (publ), Stockholm, SE;
Abstract
In up-to date communication devices an intermediate frequency signal is generated at first in a digital way and than is converted to an analogue signal by a digital-to-analogue converter (). In order to offer a greater flexibility in choosing a particular digital-to-analogue converter () the invention proposes to use sigma-delta modulators (), the output bit width (n) of which is arranged to be configurable. The advantage of providing sigma-delta modulators with a configurable output bit width is that by this the output bit width of the interpolation filters can be easily adapted to the input bit width of a chosen digital-to-analogue converter without the need to change the internal design of a baseband processing circuit.