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MX9400870A - Disposicion para transmision duplex. - Google Patents

Disposicion para transmision duplex.

Info

Publication number
MX9400870A
MX9400870A MX9400870A MX9400870A MX9400870A MX 9400870 A MX9400870 A MX 9400870A MX 9400870 A MX9400870 A MX 9400870A MX 9400870 A MX9400870 A MX 9400870A MX 9400870 A MX9400870 A MX 9400870A
Authority
MX
Mexico
Prior art keywords
filter
arrangement
transmitter
receiver
oas
Prior art date
Application number
MX9400870A
Other languages
English (en)
Inventor
Jan Anders Larsson
Original Assignee
Ericsson Ge Mobile Communicat
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 Ericsson Ge Mobile Communicat filed Critical Ericsson Ge Mobile Communicat
Publication of MX9400870A publication Critical patent/MX9400870A/es

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/3052—Automatic control in amplifiers having semiconductor devices in bandpass amplifiers (H.F. or I.F.) or in frequency-changers used in a (super)heterodyne receiver
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • 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
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transceivers (AREA)
  • Transmitters (AREA)
  • Circuits Of Receivers In General (AREA)

Abstract

La presente invención se relaciona con una disposición (20) para transmisión dúplex en un radio o un aparato semejante, con un transmisor (1) y un receptor (2), la disposición comprende un filtro (3) del transmisor, un filtro (4) del receptor y de preferencia un dispositivo (5) transmisor/receptor, en donde el filtro (4) del receptor comprende un filtro llamado OAS (Filtro de Onda Acústica Superficial) y el filtro (3) del transmisor y el filtro (4) OAS están conectados a través de un circulador (6). La disposición comprende un dispositivo (7) detector de energía hacia adentro/hacia afuera de los filtros receptores (filtros OAS) y la disposición (7) detectora de energía proporciona una señal de realimentación hacia una disposición de control para controlar la energía desde un amplificador (8) de energía colocado adelante del filtro (3) del transmisor.
MX9400870A 1993-02-05 1994-02-03 Disposicion para transmision duplex. MX9400870A (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9300349A SE513813C2 (sv) 1993-02-05 1993-02-05 Anordning med SAW-filter för duplexöverföring

Publications (1)

Publication Number Publication Date
MX9400870A true MX9400870A (es) 1994-08-31

Family

ID=20388769

Family Applications (1)

Application Number Title Priority Date Filing Date
MX9400870A MX9400870A (es) 1993-02-05 1994-02-03 Disposicion para transmision duplex.

Country Status (18)

Country Link
US (1) US5487179A (es)
EP (1) EP0613258B1 (es)
JP (1) JP3457374B2 (es)
KR (1) KR100241244B1 (es)
CN (1) CN1041480C (es)
AU (1) AU679948B2 (es)
CA (1) CA2114982C (es)
DE (1) DE69421557T2 (es)
DK (1) DK0613258T3 (es)
ES (1) ES2141212T3 (es)
FI (1) FI112011B (es)
GR (1) GR3032440T3 (es)
HK (1) HK1013896A1 (es)
MX (1) MX9400870A (es)
MY (1) MY110378A (es)
SE (1) SE513813C2 (es)
SG (1) SG49066A1 (es)
TW (1) TW295748B (es)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0837434A (ja) * 1994-07-25 1996-02-06 Oki Electric Ind Co Ltd 移動体通信装置の出力パワー制御回路及び空中線共用器
FI105865B (fi) * 1994-11-14 2000-10-13 Nokia Mobile Phones Ltd Menetelmä ja kytkentä radiolaitteen lähetinsignaalin tehon säätämiseksi ja linearisoimiseksi
JPH08204763A (ja) * 1994-11-21 1996-08-09 Sony Corp 送信機及び送受信機
US5701595A (en) * 1995-05-04 1997-12-23 Nippondenso Co., Ltd. Half duplex RF transceiver having low transmit path signal loss
KR0167895B1 (ko) * 1995-10-06 1999-02-01 김광호 이동무선 통신시스템에서 공급전원 제어회로
KR100193842B1 (ko) * 1996-09-13 1999-06-15 윤종용 무선통신시스템의 전력조절 회로 및 방법
JPH10173547A (ja) * 1996-12-11 1998-06-26 Matsushita Electric Ind Co Ltd 送信出力検出回路
JPH10190381A (ja) * 1996-12-27 1998-07-21 Fujitsu Ltd 送受信装置
KR100275071B1 (ko) 1998-06-23 2000-12-15 윤종용 이동통신기지국의스마트안테나시스템용송수신장치
KR100514679B1 (ko) * 1998-11-18 2005-12-06 주식회사 팬택앤큐리텔 이동통신 단말기의 알에프 최종단 모듈구조
WO2000052841A1 (fr) * 1999-03-01 2000-09-08 Fujitsu Limited Circuit radiofrequence pour emission/reception radioelectrique et module de circuit radiofrequence pour emission/reception radioelectrique
US6591086B1 (en) 2000-04-24 2003-07-08 Telaxis Communications Corporation Enhanced time division duplexing (TDD) transceiver circuitry
DE60305505T2 (de) * 2003-10-23 2007-04-26 Sony Ericsson Mobile Communications Ab Leistungssteuerungsschaltkreis für eine mobile Endgeräteanwendung
US8301077B2 (en) * 2009-09-24 2012-10-30 ConvenientPower, Ltd Antenna network for passive and active signal enhancement
US20110199045A1 (en) * 2010-02-15 2011-08-18 Convenientpower Hk Ltd Power transfer device and method
US8294418B2 (en) * 2010-02-03 2012-10-23 ConvenientPower, Ltd. Power transfer device and method
US8738944B2 (en) * 2011-11-16 2014-05-27 Cisco Technology, Inc. Energy-based feedback for transmission reception in a communication network
US9525514B2 (en) * 2015-01-26 2016-12-20 Mitsubishi Electric Research Laboratories, Inc. System and method for decoding block of data received over communication channel
CN109596111B (zh) * 2018-12-05 2021-09-10 柳州铁道职业技术学院 一种用于传话的全站仪

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4292939A (en) * 1979-12-13 1981-10-06 Lumenition Limited Fail safe devices for use with devices for limiting the speed of revolution of an internal combustion engine
US4380822A (en) * 1981-11-02 1983-04-19 Motorola, Inc. Transmit-receive switching circuit for radio frequency circulators
JPS5896351U (ja) * 1981-12-22 1983-06-30 日本電気株式会社 アンテナ共用器
US4792939A (en) * 1986-01-24 1988-12-20 Hitachi Denshi Kabushiki Kaisha Duplex radio communication transceiver
FR2595889B1 (fr) * 1986-03-14 1988-05-06 Havel Christophe Dispositif de controle de puissance d'emission dans une station emettrice-receptrice de radiocommunication
JPS6423612A (en) * 1987-07-20 1989-01-26 Hitachi Ltd Elastic surface wave device
JP2769478B2 (ja) * 1989-04-10 1998-06-25 三菱電機株式会社 無線機
JPH036913A (ja) * 1989-06-05 1991-01-14 Hitachi Ltd 弾性表面波フィルタ及びそれを用いた移動無線装置
JP2540377B2 (ja) * 1990-07-04 1996-10-02 三菱電機株式会社 自動出力電力制御装置
FI90158C (fi) * 1991-06-25 1993-12-27 Lk Products Oy Oevertonsfrekvensfilter avsett foer ett keramiskt filter
US5212815A (en) * 1991-09-03 1993-05-18 Motorola, Inc. Radio equipment directional coupler
US5333176A (en) * 1992-04-30 1994-07-26 Murata Machinery, Ltd. Cellular hand held portable speakerphone system having an interface adapter
US5266909A (en) * 1992-08-05 1993-11-30 Harris Corporation Waveguide circulator

Also Published As

Publication number Publication date
DE69421557D1 (de) 1999-12-16
SE9300349D0 (sv) 1993-02-05
SG49066A1 (en) 1998-05-18
GR3032440T3 (en) 2000-05-31
FI940506L (fi) 1994-08-06
FI940506A0 (fi) 1994-02-03
FI112011B (fi) 2003-10-15
MY110378A (en) 1998-04-30
ES2141212T3 (es) 2000-03-16
JPH0750611A (ja) 1995-02-21
JP3457374B2 (ja) 2003-10-14
CA2114982C (en) 2007-04-24
EP0613258B1 (en) 1999-11-10
AU679948B2 (en) 1997-07-17
TW295748B (es) 1997-01-11
US5487179A (en) 1996-01-23
HK1013896A1 (en) 1999-09-10
KR940020711A (ko) 1994-09-16
DK0613258T3 (da) 2000-04-17
CA2114982A1 (en) 1994-08-06
EP0613258A1 (en) 1994-08-31
SE9300349L (sv) 1994-08-06
KR100241244B1 (ko) 2000-02-01
AU5490394A (en) 1994-08-11
SE513813C2 (sv) 2000-11-06
CN1099918A (zh) 1995-03-08
CN1041480C (zh) 1998-12-30
DE69421557T2 (de) 2000-05-04

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