DK168506B1 - Kredsløb til gengivelsesdelen i FM-modtager beregnet for telefonsystem - Google Patents

Kredsløb til gengivelsesdelen i FM-modtager beregnet for telefonsystem Download PDF

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Publication number
DK168506B1
DK168506B1 DK601987A DK601987A DK168506B1 DK 168506 B1 DK168506 B1 DK 168506B1 DK 601987 A DK601987 A DK 601987A DK 601987 A DK601987 A DK 601987A DK 168506 B1 DK168506 B1 DK 168506B1
Authority
DK
Denmark
Prior art keywords
frequency
channel
signal
circuit
phase
Prior art date
Application number
DK601987A
Other languages
Danish (da)
English (en)
Other versions
DK601987A (da
DK601987D0 (da
Inventor
Jaakko Hulkko
Original Assignee
Nokia Mobira 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 Nokia Mobira Oy filed Critical Nokia Mobira Oy
Publication of DK601987D0 publication Critical patent/DK601987D0/da
Publication of DK601987A publication Critical patent/DK601987A/da
Application granted granted Critical
Publication of DK168506B1 publication Critical patent/DK168506B1/da

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0837—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using pre-detection combining
    • H04B7/0842—Weighted combining
    • H04B7/0865—Independent weighting, i.e. weights based on own antenna reception parameters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0837—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using pre-detection combining
    • H04B7/084—Equal gain combining, only phase adjustments
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/12—Frequency diversity

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Radio Transmission System (AREA)
  • Superheterodyne Receivers (AREA)
  • Structure Of Receivers (AREA)
  • Transmitters (AREA)
  • Telephone Function (AREA)
DK601987A 1986-11-18 1987-11-17 Kredsløb til gengivelsesdelen i FM-modtager beregnet for telefonsystem DK168506B1 (da)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI864704 1986-11-18
FI864704A FI76227C (fi) 1986-11-18 1986-11-18 Koppling foer aotergivningsdelen i en foer ett telefonsystem avsedd fm-mottagare.

Publications (3)

Publication Number Publication Date
DK601987D0 DK601987D0 (da) 1987-11-17
DK601987A DK601987A (da) 1988-05-19
DK168506B1 true DK168506B1 (da) 1994-04-05

Family

ID=8523509

Family Applications (1)

Application Number Title Priority Date Filing Date
DK601987A DK168506B1 (da) 1986-11-18 1987-11-17 Kredsløb til gengivelsesdelen i FM-modtager beregnet for telefonsystem

Country Status (8)

Country Link
US (1) US4856080A (de)
AT (1) AT390701B (de)
CH (1) CH675041A5 (de)
DK (1) DK168506B1 (de)
FI (1) FI76227C (de)
NL (1) NL194187C (de)
NO (1) NO171340C (de)
SE (1) SE466229B (de)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3828817A1 (de) * 1988-08-25 1990-03-08 Ant Nachrichtentech Raumdiversity-empfaengerschaltung
US5203025A (en) * 1990-11-09 1993-04-13 Kovatel Communications, Ltd. Selection circuit in a space diversity reception system for a mobile receiver
US5740519A (en) * 1991-05-31 1998-04-14 Telefunken Method for the time-correlated transmission of a control signal and a radio program signal
US5666660A (en) * 1991-05-31 1997-09-09 Telefunken System for receiving a radio signal including multiple receiving units
GB2294609B (en) * 1994-10-26 1999-01-27 Northern Telecom Ltd A base station arrangement
FI107485B (fi) * 1996-04-17 2001-08-15 Nokia Mobile Phones Ltd Diversiteettimenetelmä, radiovastaanotin ja radiojärjestelmä
JP2880971B2 (ja) * 1996-11-15 1999-04-12 埼玉日本電気株式会社 周波数安定化回路
DE19705735A1 (de) * 1997-02-14 1998-08-20 Nokia Mobile Phones Ltd Verfahren und Vorrichtung zur Inspektion wenigstens eines Antennenzweigs, insbesondere in einem Fahrzeug
AU4367899A (en) * 1998-05-27 1999-12-13 Nokia Mobile Phones Limited A receiver and receiving method for wireless communication
US6567981B1 (en) 1998-08-03 2003-05-20 Elysium Broadband Inc. Audio/video signal redistribution system
CN110823142B (zh) * 2019-11-11 2021-04-30 华滋奔腾（苏州）安监仪器有限公司 基于增益鉴相器同轴电缆应变传感器的解调仪及解调方法
CN110823140B (zh) * 2019-11-11 2021-04-30 华滋奔腾（苏州）安监仪器有限公司 基于混频器与功率检波器应变传感器的解调仪及解调方法

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5919652B2 (ja) * 1979-06-02 1984-05-08 郵政省電波研究所長 コヒ−レント周波数ダイバ−シチ受信方式
DE3030811C2 (de) * 1980-08-14 1982-08-19 Siemens AG, 1000 Berlin und 8000 München Raumdiversity-Empfänger mit ZF-Kombinator
US4528697A (en) * 1983-05-26 1985-07-09 Rockwell International Corporation Broadband quadrature phase modulator for control loop error generation in an IF combiner
JPS59230334A (ja) * 1983-06-13 1984-12-24 Fujitsu Ltd 空間ダイバ−シチ受信方式
JPS60132430A (ja) * 1983-12-21 1985-07-15 Toshiba Corp 妨害波除去装置
JPS60515A (ja) * 1984-05-30 1985-01-05 Hitachi Ltd 位置決め装置
FI844809A0 (fi) * 1984-12-05 1984-12-05 Nokia Oy Ab Foerfarande foer mottagning och detektering av digitala signaler.
FI844810A0 (fi) * 1984-12-05 1984-12-05 Nokia Oy Ab Foerfarande foer mottagning och detektering av digitala signaler.
JPS62143527A (ja) * 1985-12-18 1987-06-26 Nec Corp 同相合成方式

Also Published As

Publication number Publication date
SE466229B (sv) 1992-01-13
SE8704306L (sv) 1988-05-19
NL8702753A (nl) 1988-06-16
NO874693L (no) 1988-05-19
FI76227C (fi) 1988-09-09
US4856080A (en) 1989-08-08
NL194187C (nl) 2001-08-03
NL194187B (nl) 2001-04-02
FI864704A0 (fi) 1986-11-18
AT390701B (de) 1990-06-25
ATA298187A (de) 1989-11-15
SE8704306D0 (sv) 1987-11-04
NO171340C (no) 1993-02-24
NO171340B (no) 1992-11-16
CH675041A5 (de) 1990-08-15
FI76227B (fi) 1988-05-31
DK601987A (da) 1988-05-19
NO874693D0 (no) 1987-11-11
DK601987D0 (da) 1987-11-17

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B1 Patent granted (law 1993)
PBP Patent lapsed

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