AU2006315620B2 - Symbol tracking for AM in-band on-channel radio receivers - Google Patents

Symbol tracking for AM in-band on-channel radio receivers Download PDF

Info

Publication number
AU2006315620B2
AU2006315620B2 AU2006315620A AU2006315620A AU2006315620B2 AU 2006315620 B2 AU2006315620 B2 AU 2006315620B2 AU 2006315620 A AU2006315620 A AU 2006315620A AU 2006315620 A AU2006315620 A AU 2006315620A AU 2006315620 B2 AU2006315620 B2 AU 2006315620B2
Authority
AU
Australia
Prior art keywords
symbol
samples
time domain
symbols
time
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.)
Ceased
Application number
AU2006315620A
Other languages
English (en)
Other versions
AU2006315620A1 (en
Inventor
Brian W. Kroeger
Kun Wang
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.)
Ibiquity Digital Corp
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 AU2006315620A1 publication Critical patent/AU2006315620A1/en
Application granted granted Critical
Publication of AU2006315620B2 publication Critical patent/AU2006315620B2/en
Ceased legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • 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
    • 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)
  • Circuits Of Receivers In General (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
AU2006315620A 2005-11-14 2006-11-13 Symbol tracking for AM in-band on-channel radio receivers Ceased AU2006315620B2 (en)

Applications Claiming Priority (3)

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
US11/273,099 2005-11-14
PCT/US2006/043984 WO2007059029A2 (en) 2005-11-14 2006-11-13 Symbol tracking for am in-band on-channel radio receivers

Publications (2)

Publication Number Publication Date
AU2006315620A1 AU2006315620A1 (en) 2007-05-24
AU2006315620B2 true AU2006315620B2 (en) 2011-04-28

Family

ID=37943941

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2006315620A Ceased AU2006315620B2 (en) 2005-11-14 2006-11-13 Symbol tracking for AM in-band on-channel radio receivers

Country Status (15)

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

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
TWI612518B (zh) * 2012-11-13 2018-01-21 Samsung Electronics Co., Ltd. 編碼模式決定方法、音訊編碼方法以及音訊解碼方法
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

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
WO1997008866A1 (en) * 1995-08-31 1997-03-06 Usa Digital Radio Partners, L.P. Am compatible digital waveform frame timing recovery and frame synchronous power measurement
EP1100237A2 (en) * 1999-11-12 2001-05-16 Lucent Technologies Inc. Methods and apparatus for frame synchronization in a digital audio broadcasting system
EP1330087A2 (en) * 2002-01-17 2003-07-23 Samsung Electronics Co., Ltd. Symbol timing recovery for multicarrier receivers
US20050074067A1 (en) * 2003-10-03 2005-04-07 Nieto John Wesley System and method for an adaptive receiver for the reception of signals subject to multipath interference
US20050249181A1 (en) * 2004-05-04 2005-11-10 Rajiv Vijayan Staggered pilot transmission for channel estimation and time tracking

Family Cites Families (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5376894A (en) * 1992-12-31 1994-12-27 Pacific Communication Sciences, Inc. Phase estimation and synchronization using a PSK demodulator
US5588022A (en) * 1994-03-07 1996-12-24 Xetron Corp. Method and apparatus for AM compatible digital broadcasting
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
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
GB9709063D0 (en) * 1997-05-02 1997-06-25 British Broadcasting Corp Improvements to OFDM symbol synchronization
US6137847A (en) * 1997-05-02 2000-10-24 Lsi Logic Corporation Demodulating digital video broadcast signals
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
US6269132B1 (en) * 1999-04-26 2001-07-31 Intellon Corporation Windowing function for maintaining orthogonality of channels in the reception of OFDM symbols
US6074086A (en) * 1999-04-26 2000-06-13 Intellon Corporation Synchronization of OFDM signals with improved windowing
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
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
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
US20060041609A1 (en) * 2004-08-20 2006-02-23 Pellar Ronald J System and method for multi-dimensional lookup table interpolation

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
WO1997008866A1 (en) * 1995-08-31 1997-03-06 Usa Digital Radio Partners, L.P. Am compatible digital waveform frame timing recovery and frame synchronous power measurement
EP1100237A2 (en) * 1999-11-12 2001-05-16 Lucent Technologies Inc. Methods and apparatus for frame synchronization in a digital audio broadcasting system
EP1330087A2 (en) * 2002-01-17 2003-07-23 Samsung Electronics Co., Ltd. Symbol timing recovery for multicarrier receivers
US20050074067A1 (en) * 2003-10-03 2005-04-07 Nieto John Wesley System and method for an adaptive receiver for the reception of signals subject to multipath interference
US20050249181A1 (en) * 2004-05-04 2005-11-10 Rajiv Vijayan Staggered pilot transmission for channel estimation and time tracking

Also Published As

Publication number Publication date
CN101310470A (zh) 2008-11-19
KR20080068743A (ko) 2008-07-23
DE602006017887D1 (de) 2010-12-09
JP4951000B2 (ja) 2012-06-13
TW200726114A (en) 2007-07-01
JP2009516431A (ja) 2009-04-16
US20070110185A1 (en) 2007-05-17
WO2007059029A2 (en) 2007-05-24
RU2008123872A (ru) 2009-12-27
ATE486420T1 (de) 2010-11-15
BRPI0618531A2 (pt) 2016-11-22
CA2627993A1 (en) 2007-05-24
NZ568893A (en) 2010-04-30
AR056795A1 (es) 2007-10-24
CN101310470B (zh) 2012-06-27
WO2007059029A3 (en) 2007-07-19
US7733983B2 (en) 2010-06-08
AU2006315620A1 (en) 2007-05-24
EP1969758B1 (en) 2010-10-27
TWI394394B (zh) 2013-04-21
EP1969758A2 (en) 2008-09-17
HK1124974A1 (en) 2009-07-24

Similar Documents

Publication Publication Date Title
US5822368A (en) Developing a channel impulse response by using distortion
US6704374B1 (en) Local oscillator frequency correction in an orthogonal frequency division multiplexing system
RU2235435C2 (ru) Способ оценки отношения "сигнал-шум" цифровых несущих в системе широковещательной передачи цифровых аудиосигналов, совместимых с амплитудно-модулированными сигналами
US6628735B1 (en) Correction of a sampling frequency offset in an orthogonal frequency division multiplexing system
US6711221B1 (en) Sampling offset correction in an orthogonal frequency division multiplexing system
US5748686A (en) System and method producing improved frame synchronization in a digital communication system
AU2006315620B2 (en) Symbol tracking for AM in-band on-channel radio receivers
US6546055B1 (en) Carrier offset determination for RF signals having a cyclic prefix
KR100377257B1 (ko) 멀티-캐리어 복조 시스템내 정밀 주파수 동기화 방법 및장치
CA2199760C (en) A transmission system for digital audio broadcasting
US5802079A (en) Transmission system for digital audio broadcasting
US5828954A (en) Transmission system for digital audio broadcasting
US5751774A (en) Transmission system for digital audio broadcasting
US6480536B2 (en) Method and apparatus for demodulating and equalizing an AM compatible digital audio broadcast signal
US20070110020A1 (en) Equalizer for AM in-band on-channel radio receivers
EP1961175A1 (en) Carrier tracking for am in-band on- channel radio receivers
HK1124974B (en) Symbol tracking for am in-band on-channel radio receivers
WO2004109961A2 (en) Method and apparatus for transceivers in wireless communications using ofdm spread spectrum
HK1124973B (en) Equalizer for am in-band on-channel radio receivers
GB2354411A (en) Transparent-in-tone-band (TTIB) transmitter and receiver

Legal Events

Date Code Title Description
FGA Letters patent sealed or granted (standard patent)
MK14 Patent ceased section 143(a) (annual fees not paid) or expired