Patent · US Active

Device for converting a complex-valued bandpass signal into a digital baseband signal

US7796707B2 · kind B2 · utility

0Cited by

6References

14Claims

0Family size

Assignee

Atmel Automotive GmbH · DE

Inventors

Dirk Haentzschel · Langenburg, DE
Thomas Hanusch · Dresden, DE
Michael Schmidt · Dresden, DE

Key dates

Filing date	Sep 28, 2006
Grant date	Sep 14, 2010
Priority date	—
Expiry date	Jun 7, 2029

Classification

Technology area (CPC H)Electricity
CPC primaryH03D3/006
WIPO fieldTelecommunications
WIPO sectorElectrical engineering

Abstract

A device is disclosed for converting a complex-valued bandpass signal into a digital baseband signal having: a) an analog filter unit to filter the complex-valued bandpass signal to produce only the real component from the filtered signal, and to provide a real-valued bandpass signal, b) one analog-to-digital converter that is connected to the analog filter unit and that is designed to convert the real-valued bandpass signal into a digital signal with sampled values with a width of one bit, c) a digital filter unit embodied as a lookup table, to provide a complex-valued filtered signal such that signal components outside of the useful band are suppressed, d) a sampling rate reduction unit to reduce the sampling rate of the complex-valued filtered signal and provide a reduced-rate signal, and e) a mixer unit to convert the reduced-rate signal into the digital baseband signal.

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