Patent · US Active

Sample rate conversion in delta-sigma modulators

US8290087B2 · kind B2 · utility

1Cited by

3References

12Claims

0Family size

Assignee

Ubidyne, Inc. · US

Inventors

Johannes Schlee · Ulm, DE
Maik Riegler · Blaustein, DE

Key dates

Filing date	Oct 21, 2008
Grant date	Oct 16, 2012
Priority date	—
Expiry date	Mar 4, 2029

Classification

Technology area (CPC H)Electricity
CPC primaryH04B2001/0491
WIPO fieldTelecommunications
WIPO sectorElectrical engineering

Abstract

Transmitter comprising a delta-sigma modulator (DSM), a sample rate converter (SRC) situated downstream of the delta-sigma modulator with respect to a direction of transmission signal flow, and a switching amplifier (SA) situated downstream of the sample rate converter (SRC) with respect to the direction of transmission signal flow. The invention as defined above allows for a decoupling of the clock frequency of the delta-sigma modulator (DSM) and the carrier frequency, for example in radio frequency (RF) signal generation applications using delta-sigma modulators. With the invention described herein it is possible to design the delta-sigma modulator independently of the carrier frequency.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.