DE3684769D1 - "diversity"-empfaenger. - Google Patents

"diversity"-empfaenger.

Info

Publication number
DE3684769D1
DE3684769D1 DE8686309993T DE3684769T DE3684769D1 DE 3684769 D1 DE3684769 D1 DE 3684769D1 DE 8686309993 T DE8686309993 T DE 8686309993T DE 3684769 T DE3684769 T DE 3684769T DE 3684769 D1 DE3684769 D1 DE 3684769D1
Authority
DE
Germany
Prior art keywords
diversity
receiver
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
DE8686309993T
Other languages
English (en)
Inventor
Kazuya C O Nec Corpo Hashimoto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
NEC Corp
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 NEC Corp filed Critical NEC Corp
Application granted granted Critical
Publication of DE3684769D1 publication Critical patent/DE3684769D1/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/16—Circuits
    • H04B1/1607—Supply circuits
    • H04B1/1615—Switching on; Switching off, e.g. remotely
    • 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
    • H04B7/0802—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 antenna selection
    • H04B7/0817—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 antenna selection with multiple receivers and antenna path selection
    • H04B7/082—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 antenna selection with multiple receivers and antenna path selection selecting best antenna path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
    • H04W52/0245—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal according to signal strength
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Radio Transmission System (AREA)
DE8686309993T 1985-12-23 1986-12-22 "diversity"-empfaenger. Expired - Fee Related DE3684769D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP28983285 1985-12-23

Publications (1)

Publication Number Publication Date
DE3684769D1 true DE3684769D1 (de) 1992-05-14

Family

ID=17748345

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8686309993T Expired - Fee Related DE3684769D1 (de) 1985-12-23 1986-12-22 "diversity"-empfaenger.

Country Status (8)

Country Link
US (1) US4823398A (de)
EP (1) EP0227458B1 (de)
JP (1) JPS62230125A (de)
AU (1) AU589859B2 (de)
CA (1) CA1281079C (de)
DE (1) DE3684769D1 (de)
HK (1) HK30493A (de)
SG (1) SG128392G (de)

Families Citing this family (46)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5168574A (en) * 1987-08-03 1992-12-01 Orion Industries, Inc. System and method for switching between antennas in a radio frequency booster
US5065449A (en) * 1987-08-03 1991-11-12 Orion Industries Booster diversity receiving system usable with cellular booster
EP0388163B1 (de) * 1989-03-15 1995-12-27 Nec Corporation Vorrichtung zur Interferenzdetektion in einem digitalen beweglichen Kommunikationssystem
KR910009665B1 (ko) * 1989-05-31 1991-11-25 삼성전자 주식회사 무선 수신기의 전원 절약회로 및 그 제어방법
SE464437B (sv) * 1989-08-25 1991-04-22 Ericsson Telefon Ab L M Metod i en mogilradiomottagare foer att reducera mottagarens effektbehov
US5119501A (en) * 1990-04-19 1992-06-02 Ericsson Ge Mobile Communications, Inc. Adaptive diversity equipment arrangement for cellular mobile telephone systems
JP2979596B2 (ja) * 1990-07-27 1999-11-15 ソニー株式会社 表示装置
US5263175A (en) * 1990-09-28 1993-11-16 Motorola, Inc. Diversity repeater diagnostic method and apparatus
CA2052802A1 (en) * 1990-10-11 1993-04-05 Robert R. Clappier Fm receiver anti-fading method and system
JPH0480144U (de) * 1990-11-26 1992-07-13
GB9107919D0 (en) * 1991-04-15 1991-05-29 Gen Electric Co Plc Radio receiver systems
JP3016919B2 (ja) * 1991-08-28 2000-03-06 日本電気株式会社 ダイバーシチ受信装置
GB2262863B (en) * 1991-12-23 1995-06-21 Motorola Ltd Radio communications apparatus with diversity
FI934052A (fi) * 1993-09-15 1995-03-16 Nokia Telecommunications Oy Menetelmä radiovastaanotinyksikön toiminnan valvomiseksi sekä vastaanotinyksikkö
JP3989532B2 (ja) * 1993-09-30 2007-10-10 スカイワークス ソリューションズ，インコーポレイテッド ディジタルコードレス電話のための複数アンテナホームベース
FI934651A (fi) * 1993-10-21 1995-04-22 Nokia Telecommunications Oy Diversiteettivastaanotin
US5566364A (en) * 1994-01-31 1996-10-15 Nec Corporation Power saving portable radio communication device with diversity reception
JPH07254871A (ja) * 1994-01-31 1995-10-03 Nec Corp 携帯無線通信装置
US5615411A (en) * 1994-04-22 1997-03-25 Rockwell International Method and apparatus for composite signal separation and FM demodulation
FR2722042B1 (fr) * 1994-06-29 1996-10-04 Atral Dispositif de reception de signaux, notamment de signaux radioelectriques, a deux recepteurs
JP3088246B2 (ja) * 1994-10-05 2000-09-18 三菱電機株式会社 無線通信装置
JPH09162773A (ja) * 1995-12-07 1997-06-20 Nec Corp 消費電流低減機能付無線送受信装置
JP2968716B2 (ja) 1996-04-23 1999-11-02 埼玉日本電気株式会社 ダイバーシティ受信機
US6058228A (en) 1997-10-06 2000-05-02 Nec Research Institute, Inc. Cost-effective side-coupling polymer fiber optics for optical interconnections
US6079367A (en) * 1997-10-10 2000-06-27 Dogwatch, Inc. Animal training apparatus and method
GB9802767D0 (en) * 1998-02-11 1998-04-08 Renishaw Plc Signal transmission circuit for probe
GB9901789D0 (en) * 1998-04-22 1999-03-17 Koninkl Philips Electronics Nv Antenna diversity system
JP3109595B2 (ja) * 1998-08-28 2000-11-20 日本電気株式会社 受信ダイバーシティ制御方法およびダイバーシティ受信機
US6201472B1 (en) * 1998-10-26 2001-03-13 Pittway Corp. Wireless communication system with increased dynamic range
DE19905157B4 (de) * 1999-02-08 2006-06-29 Harman Becker Automotive Systems (Becker Division) Gmbh Rundfunkempfänger
DE19905158B4 (de) * 1999-02-08 2006-03-09 Harman Becker Automotive Systems (Becker Division) Gmbh Rundfunkempfänger
US7024168B1 (en) * 1999-07-07 2006-04-04 Telefonaktiebolaget L M Ericsson (Publ) Controlled antenna diversity
US6778815B1 (en) * 1999-11-24 2004-08-17 Kabushiki Kaisha Toshiba Mobile radio terminal apparatus
JP2004221803A (ja) * 2003-01-14 2004-08-05 Sharp Corp サイマル放送受信装置
CN102739300A (zh) * 2004-03-05 2012-10-17 高通股份有限公司 用于无线通信中的接收分集控制的设备
CA2558543A1 (en) * 2004-03-05 2005-09-22 Qualcomm Incorporated Multi-antenna receive diversity control in wireless communications
EP1657830B1 (de) * 2004-11-15 2008-06-18 Harman/Becker Automotive Systems GmbH Radiosystem und Verfahren zum Steuern eines Radiosystems
KR100577062B1 (ko) * 2004-12-29 2006-05-10 삼성전자주식회사 수신 다이버시티구조를 갖는 이동통신단말기에서전력제어를 하기 위한 장치 및 방법
US7925230B2 (en) 2006-08-25 2011-04-12 Infineon Technologies Ag Diversity receiver with channel estimator
CN101388971A (zh) * 2007-09-13 2009-03-18 深圳Tcl新技术有限公司 提供优选频道的方法及装置
JP5191719B2 (ja) * 2007-10-31 2013-05-08 株式会社日立製作所 無線ｉｃタグシステムおよび無線ｉｃタグ動作方法
PT2580811T (pt) * 2010-06-11 2018-06-12 Ericsson Telefon Ab L M Nó num sistema de comunicação com funções de antena comutáveis
US9203453B2 (en) * 2011-05-24 2015-12-01 Continental Automotive Systems, Inc. Receiver with antenna switching capability
CN103414507A (zh) * 2013-07-26 2013-11-27 北京小米科技有限责任公司 一种移动终端及其天线的切换方法和装置
CN104717668A (zh) * 2013-12-16 2015-06-17 展讯通信（上海）有限公司 一种用于提高移动终端天线定向性的系统及方法
CN106099397B (zh) * 2016-08-18 2018-11-16 常熟市泓博通讯技术股份有限公司 具有多天线的电子装置

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5542790B2 (de) * 1975-01-09 1980-11-01
US4403343A (en) * 1980-09-30 1983-09-06 Clarion Co., Ltd. Diversity receiver
JPS5868328A (ja) * 1981-10-19 1983-04-23 Hitachi Ltd スペ−スダイバシテイ受信方式
DE3203591C2 (de) * 1982-02-03 1984-06-14 Robert Dipl.-Ing. 8156 Otterfing Lechner Verfahren und Schaltungsanordnung zum Prüfen zweier zeitverschobener NF-Signale auf Übereinstimmung für die automatische Sendereinstellung in einem Rundfunkempfänger
JPS58184341A (ja) * 1982-04-19 1983-10-27 Ricoh Co Ltd 高負荷伝達用遊星歯車装置
US4494244A (en) * 1983-02-14 1985-01-15 Alfred Arndt Step-off device for aircraft voice communication system
JPS59181732A (ja) * 1983-03-31 1984-10-16 Toshiba Corp 携帯用無線機におけるダイバ−シチ−受信方式
JPH0666722B2 (ja) * 1983-09-01 1994-08-24 日本電信電話株式会社 移動局におけるダイバ−シチ受信方式
JPS60100840A (ja) * 1983-11-07 1985-06-04 Nippon Telegr & Teleph Corp <Ntt> 携帯無線機用ダイバ−シチ受信機
JPS60212048A (ja) * 1984-04-06 1985-10-24 Nec Corp 符号修正型切替方式
JPS61284125A (ja) * 1985-06-11 1986-12-15 Nec Corp ダイバ−シチ受信方式
JPH0683127B2 (ja) * 1985-07-22 1994-10-19 日本電気株式会社 ダイバーシチ受信無線機

Also Published As

Publication number Publication date
EP0227458B1 (de) 1992-04-08
EP0227458A3 (en) 1988-10-19
AU6691486A (en) 1987-06-25
US4823398A (en) 1989-04-18
AU589859B2 (en) 1989-10-19
SG128392G (en) 1993-03-12
EP0227458A2 (de) 1987-07-01
HK30493A (en) 1993-04-02
CA1281079C (en) 1991-03-05
JPS62230125A (ja) 1987-10-08

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee