Patent · US Expired

Device and method for spectrally shaping a transmission signal in a radio transmitter

US7072422B2 · kind B2 · utility

1Cited by

2References

13Claims

0Family size

Assignee

Infineon Technologies AG · DE

Inventors

Markus Dötsch · Köniz, CH
Peter Jung · Munich, DE
Jörg Plechinger · Hersbruck, DE
Peter Schmidt · Ellerstadt, DE
Michael Schneider · Conroe, US
Tideya Kella · Birkenfeld, DE

Key dates

Filing date	Mar 28, 2002
Grant date	Jul 4, 2006
Priority date	—
Expiry date	Mar 30, 2024

Classification

Technology area (CPC H)Electricity
CPC primaryH04L25/03828
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

A device for spectrally shaping a discrete-value transmission signal, in a radio transmitter, includes one input for receiving an in phase component of the transmission signal and a further input for receiving a quadrature component of the transmission signal. The device also includes a filter circuit with a plurality of multipliers. A multiplexing unit is located in the signal path before the filter circuit, and a demultiplexing unit is located in the signal path after the filter circuit.

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