BRPI0618531A2 - método e aparelho para rastreamento de símbolo em receptores de rádio am de mesma faixa, mesmo canal - Google Patents

método e aparelho para rastreamento de símbolo em receptores de rádio am de mesma faixa, mesmo canal

Info

Publication number
BRPI0618531A2
BRPI0618531A2 BRPI0618531A BRPI0618531A BRPI0618531A2 BR PI0618531 A2 BRPI0618531 A2 BR PI0618531A2 BR PI0618531 A BRPI0618531 A BR PI0618531A BR PI0618531 A BRPI0618531 A BR PI0618531A BR PI0618531 A2 BRPI0618531 A2 BR PI0618531A2
Authority
BR
Brazil
Prior art keywords
channel
same
receivers
tracking symbol
tracking
Prior art date
Application number
BRPI0618531A
Other languages
English (en)
Inventor
Brian W Kroeger
Kun Wang
Original Assignee
Ibiquity Digital 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 Ibiquity Digital Corp filed Critical Ibiquity Digital Corp
Publication of BRPI0618531A2 publication Critical patent/BRPI0618531A2/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
    • H04L27/2662—Symbol synchronisation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • H04L7/02—Speed or phase control by the received code signals, the signals containing no special synchronisation information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/28—Arrangements for simultaneous broadcast of plural pieces of information
    • H04H20/36—Arrangements for simultaneous broadcast of plural pieces of information for AM broadcasts

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Noise Elimination (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Circuits Of Receivers In General (AREA)
BRPI0618531A 2005-11-14 2006-11-13 método e aparelho para rastreamento de símbolo em receptores de rádio am de mesma faixa, mesmo canal BRPI0618531A2 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/273,099 US7733983B2 (en) 2005-11-14 2005-11-14 Symbol tracking for AM in-band on-channel radio receivers
PCT/US2006/043984 WO2007059029A2 (en) 2005-11-14 2006-11-13 Symbol tracking for am in-band on-channel radio receivers

Publications (1)

Publication Number Publication Date
BRPI0618531A2 true BRPI0618531A2 (pt) 2016-11-22

Family

ID=37943941

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0618531A BRPI0618531A2 (pt) 2005-11-14 2006-11-13 método e aparelho para rastreamento de símbolo em receptores de rádio am de mesma faixa, mesmo canal

Country Status (16)

Country Link
US (1) US7733983B2 (pt)
EP (1) EP1969758B1 (pt)
JP (1) JP4951000B2 (pt)
KR (1) KR20080068743A (pt)
CN (1) CN101310470B (pt)
AR (1) AR056795A1 (pt)
AT (1) ATE486420T1 (pt)
AU (1) AU2006315620B2 (pt)
BR (1) BRPI0618531A2 (pt)
CA (1) CA2627993A1 (pt)
DE (1) DE602006017887D1 (pt)
HK (1) HK1124974A1 (pt)
NZ (1) NZ568893A (pt)
RU (1) RU2008123872A (pt)
TW (1) TWI394394B (pt)
WO (1) WO2007059029A2 (pt)

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US8014446B2 (en) * 2006-12-22 2011-09-06 Ibiquity Digital Corporation Method and apparatus for store and replay functions in a digital radio broadcasting receiver
US8040989B2 (en) * 2008-01-29 2011-10-18 Ibiquity Digital Corporation System and method for sampling rate adjustment of digital radio receiver
US8068563B2 (en) * 2008-10-20 2011-11-29 Ibiquity Digital Corporation Systems and methods for frequency offset correction in a digital radio broadcast receiver
US8279908B2 (en) * 2008-12-31 2012-10-02 Ibiquity Digital Corporation Synchronization of separated platforms in an HD radio broadcast single frequency network
US8638834B2 (en) * 2009-07-15 2014-01-28 Cisco Technology, Inc. Signal sequence detection techniques for OFDM/OFDMA systems
US8849226B2 (en) * 2009-08-13 2014-09-30 Cascoda Limited Wireless receiver
US8724757B2 (en) * 2010-03-26 2014-05-13 General Dynamics C4 Systems, Inc. Symbol timing synchronization methods and apparatus
CN102421186B (zh) * 2011-01-24 2014-04-02 展讯通信（上海）有限公司 一种冲击响应定时调整方法及装置
US8817917B2 (en) 2011-06-21 2014-08-26 Ibiquity Digital Corporation Method and apparatus for implementing signal quality metrics and antenna diversity switching control
CN108074579B (zh) * 2012-11-13 2022-06-24 三星电子株式会社 用于确定编码模式的方法以及音频编码方法
US9819480B2 (en) 2015-08-04 2017-11-14 Ibiquity Digital Corporation System and method for synchronous processing of analog and digital pathways in a digital radio receiver
US9768948B2 (en) 2015-09-23 2017-09-19 Ibiquity Digital Corporation Method and apparatus for time alignment of analog and digital pathways in a digital radio receiver
US9832007B2 (en) 2016-04-14 2017-11-28 Ibiquity Digital Corporation Time-alignment measurement for hybrid HD radio™ technology
US10666416B2 (en) 2016-04-14 2020-05-26 Ibiquity Digital Corporation Time-alignment measurement for hybrid HD radio technology
RU2735494C1 (ru) * 2020-01-31 2020-11-03 Акционерное общество "Концерн "Созвездие" Устройство адаптивной синхронизации символов

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US5588022A (en) 1994-03-07 1996-12-24 Xetron Corp. Method and apparatus for AM compatible digital broadcasting
US5544200A (en) * 1994-12-08 1996-08-06 Titan Information Systems Corporation Acquisition of carrier phase and symbol timing through joint estimation of phase and timing adjustments
WO1996021291A1 (en) 1995-01-03 1996-07-11 Northrop Grumman Corporation Method and apparatus for improving am compatible digital broadcast analog fidelity
US5640416A (en) * 1995-06-07 1997-06-17 Comsat Corporation Digital downconverter/despreader for direct sequence spread spectrum communications system
US5764706A (en) 1995-08-31 1998-06-09 Usa Digital Radio Partners, L.P. AM compatible digital waveform frame timing recovery and frame synchronous power measurement
JPH09270765A (ja) 1996-01-31 1997-10-14 Victor Co Of Japan Ltd Ｏｆｄｍ変復調装置及びｏｆｄｍ変調方法
JP3289610B2 (ja) 1996-07-31 2002-06-10 日本ビクター株式会社 Ｏｆｄｍ復調装置及びその方法
US5764102A (en) 1997-02-13 1998-06-09 Sicom, Inc. Multi-stage symbol synchronization
US6137847A (en) 1997-05-02 2000-10-24 Lsi Logic Corporation Demodulating digital video broadcast signals
GB9709063D0 (en) 1997-05-02 1997-06-25 British Broadcasting Corp Improvements to OFDM symbol synchronization
US6058150A (en) 1997-09-30 2000-05-02 Wireless Access, Inc. Method and apparatus for combined timing recovery, frame synchronization and frequency offset correction in a receiver
US6122135A (en) * 1997-12-19 2000-09-19 Western Digital Corporation Disk drive with voice coil motor rise time manager
FI106592B (fi) 1998-05-07 2001-02-28 Nokia Multimedia Network Termi Menetelmä ja laite symbolitahdistuksen saavuttamiseksi ja ylläpitämiseksi erityisesti OFDM-järjestelmässä
US6074086A (en) 1999-04-26 2000-06-13 Intellon Corporation Synchronization of OFDM signals with improved windowing
US6269132B1 (en) 1999-04-26 2001-07-31 Intellon Corporation Windowing function for maintaining orthogonality of channels in the reception of OFDM symbols
US6154510A (en) 1999-05-03 2000-11-28 Sicom, Inc. Symbol timing recovery based on adjusted, phase-selected magnitude values
US6549544B1 (en) 1999-11-10 2003-04-15 Ibiquity Digital Corporation Method and apparatus for transmission and reception of FM in-band on-channel digital audio broadcasting
US6631143B1 (en) 1999-11-12 2003-10-07 Lucent Technologies Inc. Methods and apparatus for frame synchronization in a digital audio broadcasting system
KR100402906B1 (ko) 2001-02-08 2003-10-22 (주)아이앤씨테크놀로지 직교주파수분할다중방식에서의 주파수 오프셋 동기화 장치및 방법
US7248652B2 (en) 2001-02-28 2007-07-24 Agere Systems Inc. Method and apparatus for recovering timing information in orthogonal frequency division multiplexing (OFDM) systems
US20030107986A1 (en) 2001-12-11 2003-06-12 Sarnoff Corporation Method and apparatus for demodulating orthogonal frequency division multiplexed signals
US20030135374A1 (en) * 2002-01-16 2003-07-17 Hardwick John C. Speech synthesizer
KR100441501B1 (ko) 2002-01-17 2004-07-23 삼성전자주식회사 오에프디엠수신기의 심볼 타이밍 복원장치 및 방법
DE10208717B4 (de) * 2002-02-28 2004-04-01 Infineon Technologies Ag Verfahren zum Übertragen eines analogen Datenstroms mit Abtastratenerhöhung im Datenstromsender und Schaltungsanordnung zur Durchführung des Verfahrens
US6898249B2 (en) 2002-12-17 2005-05-24 Ibiquity Digital Corporation Method and apparatus for AM digital audio broadcasting with amplitude scaled tertiary subcarriers
JP4076912B2 (ja) * 2003-06-10 2008-04-16 アルパイン株式会社 Ｉｂｏｃ放送受信機
US7292640B2 (en) * 2003-10-03 2007-11-06 Harris Corporation System and method for an adaptive receiver for the reception of signals subject to multipath interference
US7457231B2 (en) * 2004-05-04 2008-11-25 Qualcomm Incorporated Staggered pilot transmission for channel estimation and time tracking
US20060041609A1 (en) * 2004-08-20 2006-02-23 Pellar Ronald J System and method for multi-dimensional lookup table interpolation

Also Published As

Publication number Publication date
AU2006315620B2 (en) 2011-04-28
JP4951000B2 (ja) 2012-06-13
CN101310470B (zh) 2012-06-27
JP2009516431A (ja) 2009-04-16
NZ568893A (en) 2010-04-30
ATE486420T1 (de) 2010-11-15
TW200726114A (en) 2007-07-01
WO2007059029A3 (en) 2007-07-19
CN101310470A (zh) 2008-11-19
RU2008123872A (ru) 2009-12-27
WO2007059029A2 (en) 2007-05-24
HK1124974A1 (en) 2009-07-24
TWI394394B (zh) 2013-04-21
CA2627993A1 (en) 2007-05-24
EP1969758B1 (en) 2010-10-27
KR20080068743A (ko) 2008-07-23
US20070110185A1 (en) 2007-05-17
DE602006017887D1 (de) 2010-12-09
EP1969758A2 (en) 2008-09-17
AU2006315620A1 (en) 2007-05-24
AR056795A1 (es) 2007-10-24
US7733983B2 (en) 2010-06-08

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Legal Events

Date Code Title Description
B06G Technical and formal requirements: other requirements [chapter 6.7 patent gazette]

Free format text: SOLICITA-SE A REGULARIZACAO DA PROCURACAO, UMA VEZ QUE BASEADO NO ARTIGO 216 1O DA LPI, O DOCUMENTO DE PROCURACAO DEVE SER APRESENTADO NO ORIGINAL, TRASLADO OU FOTOCOPIA AUTENTICADA.

B11Z Dismissal: petition dismissal - article 216, par 2 of industrial property law

Free format text: REFERENTE A PETICAO NO 20080071998/RJ DE 13/05/2008.

B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]
B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]