Patent · US Expired

Mobile radio receiver device

US7356324B2 · kind B2 · utility

2Cited by

11References

17Claims

0Family size

Assignee

Infineon Technologies AG · DE

Inventors

Markus Hammes · Dinslaken, DE
Stefan Waasen · Sollentuna, SE

Key dates

Filing date	Dec 23, 2004
Grant date	Apr 8, 2008
Priority date	—
Expiry date	May 16, 2026

Classification

Technology area (CPC H)Electricity
CPC primaryH04L27/3854
WIPO fieldTelecommunications
WIPO sectorElectrical engineering

Abstract

The invention is directed to a receiver arrangement, for example, in a mobile radio, which allows the use of slowly locking phase locked loops for a point-to-point connection between two transceivers, even in the case of a heterodyne receiver structure. The need to change channels between a transmission slot and a reception slot is avoided by virtue of a changeover device being provided for the purpose of interchanging the in-phase and quadrature components at the input side on a down-conversion frequency mixer. This advantageously allows either the upper sideband or the lower sideband of a useful signal to be down-converted without the need to change channel.

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