NL194187C - Schakeling in een meervoudigheidseenheid van een FM-ontvanger voor een telefoonstelsel. - Google Patents

Schakeling in een meervoudigheidseenheid van een FM-ontvanger voor een telefoonstelsel. Download PDF

Info

Publication number
NL194187C
NL194187C NL8702753A NL8702753A NL194187C NL 194187 C NL194187 C NL 194187C NL 8702753 A NL8702753 A NL 8702753A NL 8702753 A NL8702753 A NL 8702753A NL 194187 C NL194187 C NL 194187C
Authority
NL
Netherlands
Prior art keywords
channel
signal
circuit
phase
frequency
Prior art date
Application number
NL8702753A
Other languages
English (en)
Dutch (nl)
Other versions
NL194187B (nl
NL8702753A (nl
Original Assignee
Nokia Mobile Phones Ltd
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 Mobile Phones Ltd filed Critical Nokia Mobile Phones Ltd
Publication of NL8702753A publication Critical patent/NL8702753A/nl
Publication of NL194187B publication Critical patent/NL194187B/xx
Application granted granted Critical
Publication of NL194187C publication Critical patent/NL194187C/nl

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)
NL8702753A 1986-11-18 1987-11-18 Schakeling in een meervoudigheidseenheid van een FM-ontvanger voor een telefoonstelsel. NL194187C (nl)

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
NL8702753A NL8702753A (nl) 1988-06-16
NL194187B NL194187B (nl) 2001-04-02
NL194187C true NL194187C (nl) 2001-08-03

Family

ID=8523509

Family Applications (1)

Application Number Title Priority Date Filing Date
NL8702753A NL194187C (nl) 1986-11-18 1987-11-18 Schakeling in een meervoudigheidseenheid van een FM-ontvanger voor een telefoonstelsel.

Country Status (8)

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

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
US5666660A (en) * 1991-05-31 1997-09-09 Telefunken System for receiving a radio signal including multiple receiving units
US5740519A (en) * 1991-05-31 1998-04-14 Telefunken Method for the time-correlated transmission of a control signal and a radio program signal
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
JP2002517124A (ja) * 1998-05-27 2002-06-11 ノキア モービル フォーンズ リミテッド ワイヤレス通信用の受信器及び受信方法
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
DK601987A (da) 1988-05-19
FI76227C (fi) 1988-09-09
NL194187B (nl) 2001-04-02
ATA298187A (de) 1989-11-15
SE8704306L (sv) 1988-05-19
DK168506B1 (da) 1994-04-05
FI864704A0 (fi) 1986-11-18
NO874693D0 (no) 1987-11-11
SE8704306D0 (sv) 1987-11-04
FI76227B (fi) 1988-05-31
US4856080A (en) 1989-08-08
DK601987D0 (da) 1987-11-17
NO171340B (no) 1992-11-16
NO171340C (no) 1993-02-24
SE466229B (sv) 1992-01-13
AT390701B (de) 1990-06-25
NO874693L (no) 1988-05-19
CH675041A5 (no) 1990-08-15
NL8702753A (nl) 1988-06-16

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Legal Events

Date Code Title Description
BA A request for search or an international-type search has been filed
BB A search report has been drawn up
BC A request for examination has been filed
DNT Communications of changes of names of applicants whose applications have been laid open to public inspection

Free format text: NOKIA MOBILE PHONES LTD.

V1 Lapsed because of non-payment of the annual fee

Effective date: 20020601