Patent · US Expired

Communication receiver having reduced dynamic range by reducing the fixed range of the amplifier and increasing the variable gain via a gain control circuit

US6678509B2 · kind B2 · utility

111Cited by

22References

25Claims

0Family size

Assignee

Telefonaktiebolaget LM Ericsson (Publ) · SE

Inventors

Karin Skarman · Stockholm, SE
Tomas Stolt · Stockholm, SE
Anders Järleholm · Sollentuna, SE

Key dates

Filing date	Oct 15, 2001
Grant date	Jan 13, 2004
Priority date	—
Expiry date	Apr 13, 2022

Classification

Technology area (CPC H)Electricity
CPC primaryH03G3/3078
WIPO fieldBasic communication processes
WIPO sectorElectrical engineering

Abstract

An apparatus for use in a receiver in a communication system in which signals cover a wide range of power levels. The apparatus provides reduced power consumption without sacrificing receiver sensitivity by using an amplifier having a fixed, relatively narrow dynamic range that can by selectively positioned to accommodate the wide range of power levels. The amplifier is placed earlier in the receiver signal processing chain than comparable amplifiers in conventional receivers.

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