ES2117684T3 - Sistema de comunicaciones. - Google Patents

Sistema de comunicaciones.

Info

Publication number
ES2117684T3
ES2117684T3 ES93112992T ES93112992T ES2117684T3 ES 2117684 T3 ES2117684 T3 ES 2117684T3 ES 93112992 T ES93112992 T ES 93112992T ES 93112992 T ES93112992 T ES 93112992T ES 2117684 T3 ES2117684 T3 ES 2117684T3
Authority
ES
Spain
Prior art keywords
communications device
control channel
channel signal
traffic channels
filter
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 - Lifetime
Application number
ES93112992T
Other languages
English (en)
Inventor
Doron Shalev
Gadi Shirazi
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.)
Motorola Solutions Israel Ltd
Original Assignee
Motorola Israel 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 Motorola Israel Ltd filed Critical Motorola Israel Ltd
Application granted granted Critical
Publication of ES2117684T3 publication Critical patent/ES2117684T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J1/00—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general
    • H03J1/0008—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general using a central processing unit, e.g. a microprocessor
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J5/00—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner
    • H03J5/24—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with a number of separate pretuned tuning circuits or separate tuning elements selectively brought into circuit, e.g. for waveband selection or for television channel selection
    • H03J5/242—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with a number of separate pretuned tuning circuits or separate tuning elements selectively brought into circuit, e.g. for waveband selection or for television channel selection used exclusively for band selection
    • H03J5/244—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with a number of separate pretuned tuning circuits or separate tuning elements selectively brought into circuit, e.g. for waveband selection or for television channel selection used exclusively for band selection using electronic means

Abstract

LA FIGURA 1. ILUSTRA UN SISTEMA DE COMUNICACIONES (10) QUE COMPRENDE UNA ESTACION DE BASE (12) PARA CONTROLAR UNA SEÑAL DE CANAL DE CONTROL Y UNA PLURALIDAD DE CANALES DE TRAFICO Y UN DISPOSITIVO DE COMUNICACIONES (17) EN RESPUESTA A DICHA SEÑAL DE CANAL DE CONTROL (16) Y RECEPTIVA A DICHA PLURALIDAD DE CANALES DE TRAFICO. EL DISPOSITIVO DE COMUNICACIONES COMPRENDE UN FILTRO SINTONIZABLE (48), QUE TIENE UNA CARACTERISTICA AJUSTABLE, LA CUAL FILTRA SUSTANCIALMENTE TODO PERO NO UN CANAL DE TRAFICO ELEGIDO DE DICHA PLURALIDAD DE CANALES DE TRAFICO. EL DISPOSITIVO DE COMUNICACIONES COMPRENDE ADEMAS UN CIRCUITO DE SINTONIZACION (24, 38, 40, 44, 46, 52) PARA AJUSTAR DICHA CARACTERISTICA DE FILTRO. EL CIRCUITO DE SINTONIZACION (24, 38, 40, 44, 46, 52) UTILIZA LA SEÑAL DE CANAL DE CONTROL (16) CON UNA FRECUENCIA CENTRAL PRECISA (FO) PARA UN PASABANDA DEL CIRCUITO SINTONIZABLE (48) Y AJUSTA DICHA CARACTERISTICA DE FILTRO A SUSTANCIALMENTE UNA PERDIDA DE INSERCION MINIMA A DICHA FRECUENCIA CENTRAL PRECISA, CON LO QUE SE OPTIMIZA SUSTANCIALMENTE LA SELECTIVIDAD Y LA SENSIBILIDAD DEL DISPOSITIVO DE COMUNICACIONES (17).
ES93112992T 1992-08-29 1993-08-13 Sistema de comunicaciones. Expired - Lifetime ES2117684T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9218451A GB2270223B (en) 1992-08-29 1992-08-29 A communications system

Publications (1)

Publication Number Publication Date
ES2117684T3 true ES2117684T3 (es) 1998-08-16

Family

ID=10721196

Family Applications (1)

Application Number Title Priority Date Filing Date
ES93112992T Expired - Lifetime ES2117684T3 (es) 1992-08-29 1993-08-13 Sistema de comunicaciones.

Country Status (9)

Country Link
US (1) US5475871A (es)
EP (1) EP0585693B1 (es)
JP (1) JPH06188689A (es)
CN (1) CN1085365A (es)
AT (1) ATE167599T1 (es)
DE (1) DE69319190T2 (es)
DK (1) DK0585693T3 (es)
ES (1) ES2117684T3 (es)
GB (1) GB2270223B (es)

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FI950106A (fi) * 1995-01-10 1996-07-11 Nokia Mobile Phones Ltd Menetelmä ja kytkentä häiriöiden suodattamiseksi radiolaitteen vastaanottimessa
DE19531032A1 (de) * 1995-08-23 1997-02-27 Hwa Lin Electronic Co Tuner für direkten Satellitenempfang
JPH09270602A (ja) * 1996-04-01 1997-10-14 Matsushita Electric Ind Co Ltd 受信装置
US5937341A (en) * 1996-09-13 1999-08-10 University Of Washington Simplified high frequency tuner and tuning method
JP3164008B2 (ja) * 1997-03-04 2001-05-08 日本電気株式会社 無線受信機
US6167246A (en) * 1997-05-09 2000-12-26 Micrel Incorporated Fully integrated all-CMOS AM receiver
JPH10313226A (ja) * 1997-05-12 1998-11-24 Fujitsu Ltd 送受分波器および送受分波器を搭載した無線通信装置
DE19908855A1 (de) * 1999-03-01 2000-09-07 Delphi Tech Inc Rundfunkempfangsvorrichtung und Verfahren zum Steuern einer Rundfunkempfangsvorrichtung
JP2000307458A (ja) * 1999-04-21 2000-11-02 Nec Corp Ｐｌｌ内蔵チューナｉｃ
FR2806554B1 (fr) * 2000-03-15 2002-11-29 Telediffusion Fse Dispositif de transposition a agilite de frequence d'un signal radiofrequence en un signal a frequence intermediaire ou reciproquement
DE10052719B4 (de) * 2000-10-24 2004-08-26 Siemens Ag Filter für elektromagnetisch übertragene Signale
KR20010078836A (ko) * 2001-04-14 2001-08-22 한남희 휴대형 티알에스(trs)에서의 전력 및 수신 채널에스/엔(s/n)비측정장치
US7155196B1 (en) * 2001-05-17 2006-12-26 Cypress Semiconductor Corp. Intermediate frequency tuner
GB0117578D0 (en) * 2001-07-19 2001-09-12 Zarlink Semiconductor Ltd Tuner
JP3906792B2 (ja) * 2002-01-22 2007-04-18 松下電器産業株式会社 高周波信号受信装置とその製造方法
JP3953333B2 (ja) * 2002-02-14 2007-08-08 パイオニア株式会社 受信装置およびその方法
US6718167B2 (en) * 2002-08-01 2004-04-06 Agere Systems Inc. Filter center frequency temperature compensation by adjustment of the operating frequency of the host system
US7272375B2 (en) 2004-06-30 2007-09-18 Silicon Laboratories Inc. Integrated low-IF terrestrial audio broadcast receiver and associated method
US7542764B2 (en) * 2005-02-25 2009-06-02 Research In Motion Limited Method of using SNR to reduce factory test time
US8229366B2 (en) * 2005-04-08 2012-07-24 Qualcomm, Incorporated Tunable duplexer with common node notch filter
ATE524879T1 (de) * 2005-07-21 2011-09-15 Telegent Systems Inc Abstimmbares filter mit verstärkter vorspannung und laufzeitkalibrierung
US20080248765A1 (en) * 2007-04-04 2008-10-09 Micrel, Inc. Superheterodyne Receiver with Switchable Local Oscillator Frequency and Reconfigurable IF Filter Characteristics
US9367711B1 (en) * 2008-09-04 2016-06-14 Intelleflex Corporation Battery assisted RFID tag with square-law receiver and optional part time active behavior
US8666346B1 (en) * 2012-08-24 2014-03-04 Texas Instruments Incorporated Robust FM modulation detector using signal autocorrelation
KR102324960B1 (ko) 2015-06-25 2021-11-12 삼성전자 주식회사 통신 장치 및 이를 포함하는 전자 장치
CN107257248B (zh) * 2017-07-19 2019-10-29 泉州泽仕通科技有限公司 宽带短波数字电台及其运行方法
CN112585828B (zh) * 2018-06-28 2024-01-09 索尔思光电股份有限公司 包含倾斜或分级通带滤波器的光发射器，及其制造和使用方法
US10715238B2 (en) 2018-09-28 2020-07-14 At&T Intellectual Property I, L.P. Outcome based receiver beam tuning

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CH561484A5 (es) * 1972-01-12 1975-04-30 Gruening Horst
US4087756A (en) * 1977-06-14 1978-05-02 Harris Corporation FM Feedback demodulator having threshold extension circuit with two-pole crystal filters
US4339829A (en) * 1978-12-29 1982-07-13 Dimon Donald F Automatic tuning system for a narrow bandwidth communication
DE3306401C1 (de) * 1983-02-24 1984-08-23 Deutsche Thomson-Brandt Gmbh, 7730 Villingen-Schwenningen Schaltungsanordnung zum Abgleich eines frequenzselektiven elektronischen Messobjekts
FR2562349B1 (fr) * 1984-03-27 1986-06-27 Cepe Oscillateur piezo-electrique fonctionnant en mode aperiodique
US4619002A (en) * 1984-07-02 1986-10-21 Motorola, Inc. Self-calibrating signal strength detector
DE3724604A1 (de) * 1987-04-15 1988-12-01 H U C Elektronik Gmbh Anordnung zum filtern eines fm-ukw-empfangssignals
US5220681A (en) * 1989-02-27 1993-06-15 Multi-Leasing Services Inc. Electronic signal decoder display/enunciator apparatus for electronic signal receivers
US5058204A (en) * 1989-08-02 1991-10-15 Motorola, Inc. Synthesized selective call receiver having variable characteristics
JP2625552B2 (ja) * 1989-08-16 1997-07-02 株式会社東芝 フィルタ回路
US5203011A (en) * 1990-09-04 1993-04-13 Motorola, Inc. Method and apparatus for establishing voice and tone signalling communication in a trunked system
US5327582A (en) * 1992-01-24 1994-07-05 Motorola, Inc. Wideband wireless communications receiver
DE4208605A1 (de) * 1992-03-18 1993-09-23 Blaupunkt Werke Gmbh Schaltungsanordnung zur nachbarkanalerkennung und -unterdrueckung in einem rundfunkempfaenger
TW263640B (es) * 1992-06-26 1995-11-21 Philips Electronics Nv
US5281931A (en) * 1992-10-08 1994-01-25 International Business Machines Corporation On-chip self-tuning filter system

Also Published As

Publication number Publication date
DE69319190T2 (de) 1998-12-10
GB9218451D0 (en) 1992-10-14
CN1085365A (zh) 1994-04-13
DE69319190D1 (de) 1998-07-23
EP0585693A2 (en) 1994-03-09
ATE167599T1 (de) 1998-07-15
GB2270223A (en) 1994-03-02
DK0585693T3 (da) 1999-04-06
EP0585693B1 (en) 1998-06-17
EP0585693A3 (en) 1995-02-15
GB2270223B (en) 1996-06-19
JPH06188689A (ja) 1994-07-08
US5475871A (en) 1995-12-12

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