FI905304A - The radio receiver. - Google Patents

The radio receiver.

Info

Publication number
FI905304A
FI905304A FI905304A FI905304A FI905304A FI 905304 A FI905304 A FI 905304A FI 905304 A FI905304 A FI 905304A FI 905304 A FI905304 A FI 905304A FI 905304 A FI905304 A FI 905304A
Authority
FI
Finland
Prior art keywords
signal
base frequency
frequency signal
radio receiver
amplification
Prior art date
Application number
FI905304A
Other languages
Finnish (fi)
Other versions
FI85786C (en
FI85786B (en
FI905304A0 (en
Inventor
Seppo Koivusaari
Original Assignee
Telenokia Oy
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Telenokia Oy filed Critical Telenokia Oy
Priority to FI905304A priority Critical patent/FI85786C/en
Publication of FI905304A0 publication Critical patent/FI905304A0/en
Application granted granted Critical
Publication of FI905304A publication Critical patent/FI905304A/en
Publication of FI85786B publication Critical patent/FI85786B/en
Publication of FI85786C publication Critical patent/FI85786C/en

Links

Landscapes

  • Circuits Of Receivers In General (AREA)
  • Control Of Amplification And Gain Control (AREA)
  • Superheterodyne Receivers (AREA)

Abstract

This invention concerns a radio receiver which has a mixer device 1 for mixing a received radio frequency signal RFIN at a base frequency, an amplifier device A1, A2 for setting the level of the base frequency signal and A/D devices 2, 3 for sampling the base frequency signal. In order that both high and low level signals can be A/D converted without clipping, the base frequency signal in the amplifier device is divided in the radio receiver according to the invention between two different A/D converter devices 2, 3 via two amplifier branches with different amplification, of which the branch A1 with the relatively large amplification is intended primarily for signal levels in the lower half of the dynamic range of the received signal, and of which the branch A2 with the relatively smaller amplification is intended primarily for signal levels within the upper half of the dynamic range of the signal. <IMAGE>
FI905304A 1990-10-26 1990-10-26 The radio receiver. FI85786C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FI905304A FI85786C (en) 1990-10-26 1990-10-26 The radio receiver.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI905304 1990-10-26
FI905304A FI85786C (en) 1990-10-26 1990-10-26 The radio receiver.

Publications (4)

Publication Number Publication Date
FI905304A0 FI905304A0 (en) 1990-10-26
FI905304A true FI905304A (en) 1992-02-14
FI85786B FI85786B (en) 1992-02-14
FI85786C FI85786C (en) 1992-05-25

Family

ID=8531321

Family Applications (1)

Application Number Title Priority Date Filing Date
FI905304A FI85786C (en) 1990-10-26 1990-10-26 The radio receiver.

Country Status (1)

Country Link
FI (1) FI85786C (en)

Also Published As

Publication number Publication date
FI85786C (en) 1992-05-25
FI85786B (en) 1992-02-14
FI905304A0 (en) 1990-10-26

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Legal Events

Date Code Title Description
MM Patent lapsed

Owner name: TELENOKIA OY