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BR9809165B1 - aparelho para recuperaÇço da portadora em receptores dab. - Google Patents

aparelho para recuperaÇço da portadora em receptores dab.

Info

Publication number
BR9809165B1
BR9809165B1 BRPI9809165-4A BR9809165A BR9809165B1 BR 9809165 B1 BR9809165 B1 BR 9809165B1 BR 9809165 A BR9809165 A BR 9809165A BR 9809165 B1 BR9809165 B1 BR 9809165B1
Authority
BR
Brazil
Prior art keywords
recovery device
carrier recovery
dab receivers
dab
receivers
Prior art date
Application number
BRPI9809165-4A
Other languages
English (en)
Other versions
BR9809165A (pt
Inventor
Hiroshi Katsumoto
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 filed Critical
Publication of BR9809165A publication Critical patent/BR9809165A/pt
Publication of BR9809165B1 publication Critical patent/BR9809165B1/pt

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2647—Arrangements specific to the receiver only
    • H04L27/2655—Synchronisation arrangements
    • H04L27/2657—Carrier synchronisation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H04L2027/0024—Carrier regulation at the receiver end
    • H04L2027/0026—Correction of carrier offset
    • H04L2027/0028—Correction of carrier offset at passband only
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H04L2027/0044—Control loops for carrier regulation
    • H04L2027/0063—Elements of loops
    • H04L2027/0065—Frequency error detectors
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H04L2027/0044—Control loops for carrier regulation
    • H04L2027/0071—Control of loops
    • H04L2027/0079—Switching between loops
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H04L2027/0083—Signalling arrangements
    • H04L2027/0089—In-band signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2647—Arrangements specific to the receiver only
    • H04L27/2655—Synchronisation arrangements
    • H04L27/2668—Details of algorithms
    • H04L27/2673—Details of algorithms characterised by synchronisation parameters
    • H04L27/2675—Pilot or known symbols

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Superheterodyne Receivers (AREA)
  • Circuits Of Receivers In General (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
BRPI9809165-4A 1997-05-28 1998-05-12 aparelho para recuperaÇço da portadora em receptores dab. BR9809165B1 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP15313697A JP3466422B2 (ja) 1997-05-28 1997-05-28 受信装置
PCT/JP1998/002087 WO1998054875A1 (en) 1997-05-28 1998-05-12 Carrier recovery in dab receivers

Publications (2)

Publication Number Publication Date
BR9809165A BR9809165A (pt) 2000-08-01
BR9809165B1 true BR9809165B1 (pt) 2013-04-02

Family

ID=15555799

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI9809165-4A BR9809165B1 (pt) 1997-05-28 1998-05-12 aparelho para recuperaÇço da portadora em receptores dab.

Country Status (12)

Country Link
US (1) US6501730B1 (pt)
EP (1) EP0985304B8 (pt)
JP (1) JP3466422B2 (pt)
KR (1) KR100377277B1 (pt)
CN (1) CN1120604C (pt)
AU (1) AU738049B2 (pt)
BR (1) BR9809165B1 (pt)
CA (1) CA2291024C (pt)
DE (1) DE69833251T2 (pt)
RU (1) RU2216113C2 (pt)
TR (1) TR199902908T2 (pt)
WO (1) WO1998054875A1 (pt)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6876675B1 (en) 1998-02-06 2005-04-05 Cisco Technology, Inc. Synchronization in OFDM systems
JP3551235B2 (ja) * 1999-06-25 2004-08-04 日本電気株式会社 Ａｆｃ回路
DE19944495C2 (de) * 1999-09-17 2002-01-03 Bosch Gmbh Robert Verfahren zum Empfang von Funksignalen über einen Funkkanal
US6862297B1 (en) * 1999-12-21 2005-03-01 Cisco Technology, Inc. Wide range frequency offset estimation in OFDM systems
US6606363B1 (en) * 1999-12-28 2003-08-12 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for estimating a frequency offset by combining pilot symbols and data symbols
US6930989B1 (en) * 2000-06-20 2005-08-16 Cisco Technology, Inc. Wide frequency offset correction using encoded interburst phase differences
GB0104280D0 (en) * 2001-02-21 2001-11-21 Cambridge Silicon Radio Ltd Estimating frequency offset
JP4449259B2 (ja) * 2001-06-19 2010-04-14 日本電気株式会社 Ａｆｃ回路
US20070019585A1 (en) * 2005-07-22 2007-01-25 Industrial Technology Research Institute Apparatus for path selection and signal processing in wireless communications system
US20070021086A1 (en) * 2005-07-22 2007-01-25 Industrial Technology Research Institute Method for path selection and signal processing in wireless communications system
US7369002B2 (en) * 2005-07-28 2008-05-06 Zarlink Semiconductor, Inc. Phase locked loop fast lock method
JP4585455B2 (ja) 2006-01-20 2010-11-24 富士通セミコンダクター株式会社 復調回路および復調方法
CN101247622B (zh) * 2008-03-03 2011-07-20 中兴通讯股份有限公司 一种音频通信系统的测试方法及装置
CN101854322B (zh) * 2009-03-31 2012-07-04 华为技术有限公司 一种频率跟踪方法、系统和鉴频器
CN101989863B (zh) * 2010-11-04 2013-10-09 华为终端有限公司 一种频偏快速跟踪装置及方法
CN103188175B (zh) * 2011-12-30 2018-05-04 国民技术股份有限公司 一种频率补偿电路、解调系统及解调方法
RU2625806C1 (ru) * 2016-04-08 2017-07-19 Сергей Александрович Косарев Способ передачи тревожных сообщений по радиоэфиру
CN111541507B (zh) * 2020-04-20 2021-12-14 吉林省广播电视研究所(吉林省广播电视局科技信息中心) 单片机测频式调频立体声解调系统

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2658016B1 (fr) 1990-02-06 1994-01-21 Etat Francais Cnet Procede de diffusion de donnees numeriques, notamment pour la radiodiffusion a haut debit vers des mobiles, a entrelacement temps-frequence et demodulation coherente, et recepteur correspondant.
RU2022485C1 (ru) * 1990-06-18 1994-10-30 Вяткин Михаил Георгиевич Цифровой согласованный фильтр сигналов с дискретной частотной манипуляцией
KR100355684B1 (ko) * 1992-11-26 2002-12-11 코닌클리케 필립스 일렉트로닉스 엔.브이. 직접변환수신기
DE69406151T2 (de) * 1993-01-13 1998-04-02 Koninkl Philips Electronics Nv Einrichtung zur Synchronisierung eines lokalen Trägers, in OFDM-Systemen
DE4319769C1 (de) 1993-06-15 1994-07-14 Grundig Emv Verfahren und Anordnung zur Einstellung der lokalen Oszillatoren eines Empfängers in einem Mehrkanalübertragungssystem
AU682700B2 (en) * 1993-06-21 1997-10-16 Kabushiki Kaisha Toshiba Digital radio communication equipment
DE69533246T2 (de) * 1994-03-25 2005-08-25 Samsung Electronics Co., Ltd., Suwon Verfahren und Vorrichtung für automatische Frequenzregelung
US5483663A (en) * 1994-04-05 1996-01-09 Diversified Communication Engineering, Inc. System for providing local originating signals with direct broadcast satellite television signals
FR2721778B1 (fr) 1994-06-23 1996-09-06 France Telecom Procédé d'estimation d'une erreur de phase résiduelle sur les échantillons d'un signal numérique démodulé, et procédé de correction correspondant.
DE4441566A1 (de) 1994-11-23 1996-05-30 Bosch Gmbh Robert Verfahren zur digitalen Frequenzkorrektur bei Mehrträgerübertragungsverfahren
SE504787C2 (sv) 1994-12-14 1997-04-28 Hd Divine Ab Metod vid OFDM-mottagning för korrigering av frekvens, tidsfönster, samplingsklocka och långsamma fasvariationer
JPH09153882A (ja) * 1995-09-25 1997-06-10 Victor Co Of Japan Ltd 直交周波数分割多重信号伝送方式、送信装置及び受信装置
US5822323A (en) * 1995-09-29 1998-10-13 Victor Company Of Japan, Ltd. Frequency division multiplexed signal generating apparatus and related decoding apparatus
JP3130773B2 (ja) * 1995-10-16 2001-01-31 日本電気株式会社 無線データ通信の復調装置
JP3556047B2 (ja) * 1996-05-22 2004-08-18 三菱電機株式会社 ディジタル放送受信機
JPH1051418A (ja) * 1996-08-06 1998-02-20 Mitsubishi Electric Corp ディジタル受信装置
JP3666162B2 (ja) * 1997-01-31 2005-06-29 三菱電機株式会社 ディジタル放送受信機
JPH10257013A (ja) * 1997-03-14 1998-09-25 Toshiba Corp 受信装置
JPH10303851A (ja) * 1997-04-25 1998-11-13 Mitsubishi Electric Corp デジタル放送受信機
JP3549361B2 (ja) * 1997-05-13 2004-08-04 三菱電機株式会社 ディジタル音声放送受信機
WO1998058451A2 (en) * 1997-06-19 1998-12-23 Koninklijke Philips Electronics N.V. Digital communication device

Also Published As

Publication number Publication date
CN1257629A (zh) 2000-06-21
KR100377277B1 (ko) 2003-03-28
DE69833251D1 (de) 2006-04-06
WO1998054875A1 (en) 1998-12-03
DE69833251T2 (de) 2006-07-13
AU738049B2 (en) 2001-09-06
JP3466422B2 (ja) 2003-11-10
EP0985304B1 (en) 2006-01-18
EP0985304B8 (en) 2006-08-02
BR9809165A (pt) 2000-08-01
KR20010012896A (ko) 2001-02-26
CA2291024C (en) 2003-01-07
RU2216113C2 (ru) 2003-11-10
CN1120604C (zh) 2003-09-03
EP0985304A1 (en) 2000-03-15
CA2291024A1 (en) 1998-12-03
US6501730B1 (en) 2002-12-31
AU7235998A (en) 1998-12-30
TR199902908T2 (xx) 2000-04-21
JPH10336138A (ja) 1998-12-18

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Legal Events

Date Code Title Description
B06A Patent application procedure suspended [chapter 6.1 patent gazette]
B06A Patent application procedure suspended [chapter 6.1 patent gazette]
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

Free format text: PRAZO DE VALIDADE: 10 (DEZ) ANOS CONTADOS A PARTIR DE 02/04/2013, OBSERVADAS AS CONDICOES LEGAIS.

B21F Lapse acc. art. 78, item iv - on non-payment of the annual fees in time
B24J Lapse because of non-payment of annual fees (definitively: art 78 iv lpi, resolution 113/2013 art. 12)