DE60019032D1 - Gesteuerter Oszillator in einem Netzwerk zur Taktrückgewinnung von digitalen Symbolen - Google Patents
Gesteuerter Oszillator in einem Netzwerk zur Taktrückgewinnung von digitalen SymbolenInfo
- Publication number
- DE60019032D1 DE60019032D1 DE60019032T DE60019032T DE60019032D1 DE 60019032 D1 DE60019032 D1 DE 60019032D1 DE 60019032 T DE60019032 T DE 60019032T DE 60019032 T DE60019032 T DE 60019032T DE 60019032 D1 DE60019032 D1 DE 60019032D1
- Authority
- DE
- Germany
- Prior art keywords
- network
- controlled oscillator
- clock recovery
- digital symbols
- symbols
- 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
Links
- 238000011084 recovery Methods 0.000 title 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/015—High-definition television systems
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
- H03L7/00—Automatic control of frequency or phase; Synchronisation
- H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
- H03L7/08—Details of the phase-locked loop
- H03L7/085—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal
- H03L7/091—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal the phase or frequency detector using a sampling device
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
- H03L7/00—Automatic control of frequency or phase; Synchronisation
- H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
- H03L7/08—Details of the phase-locked loop
- H03L7/10—Details of the phase-locked loop for assuring initial synchronisation or for broadening the capture range
- H03L7/101—Details of the phase-locked loop for assuring initial synchronisation or for broadening the capture range using an additional control signal to the controlled loop oscillator derived from a signal generated in the loop
- H03L7/102—Details of the phase-locked loop for assuring initial synchronisation or for broadening the capture range using an additional control signal to the controlled loop oscillator derived from a signal generated in the loop the additional signal being directly applied to the controlled loop oscillator
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
- H03L7/00—Automatic control of frequency or phase; Synchronisation
- H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
- H03L7/08—Details of the phase-locked loop
- H03L7/10—Details of the phase-locked loop for assuring initial synchronisation or for broadening the capture range
- H03L7/101—Details of the phase-locked loop for assuring initial synchronisation or for broadening the capture range using an additional control signal to the controlled loop oscillator derived from a signal generated in the loop
- H03L7/102—Details of the phase-locked loop for assuring initial synchronisation or for broadening the capture range using an additional control signal to the controlled loop oscillator derived from a signal generated in the loop the additional signal being directly applied to the controlled loop oscillator
- H03L7/103—Details of the phase-locked loop for assuring initial synchronisation or for broadening the capture range using an additional control signal to the controlled loop oscillator derived from a signal generated in the loop the additional signal being directly applied to the controlled loop oscillator the additional signal being a digital signal
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
- H04L25/03006—Arrangements for removing intersymbol interference
- H04L25/03012—Arrangements for removing intersymbol interference operating in the time domain
- H04L25/03019—Arrangements for removing intersymbol interference operating in the time domain adaptive, i.e. capable of adjustment during data reception
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/02—Amplitude-modulated carrier systems, e.g. using on-off keying; Single sideband or vestigial sideband modulation
- H04L27/06—Demodulator circuits; Receiver circuits
- H04L27/066—Carrier recovery circuits
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/04—Synchronising
- H04N5/12—Devices in which the synchronising signals are only operative if a phase difference occurs between synchronising and synchronised scanning devices, e.g. flywheel synchronising
- H04N5/126—Devices in which the synchronising signals are only operative if a phase difference occurs between synchronising and synchronised scanning devices, e.g. flywheel synchronising whereby the synchronisation signal indirectly commands a frequency generator
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
- H03L2207/00—Indexing scheme relating to automatic control of frequency or phase and to synchronisation
- H03L2207/06—Phase locked loops with a controlled oscillator having at least two frequency control terminals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
- H04L25/03006—Arrangements for removing intersymbol interference
- H04L2025/03592—Adaptation methods
- H04L2025/03598—Algorithms
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
- H04L25/03006—Arrangements for removing intersymbol interference
- H04L2025/03592—Adaptation methods
- H04L2025/03726—Switching between algorithms
- H04L2025/03732—Switching between algorithms according to the convergence state
-
- 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
- H04L2027/0036—Correction of carrier offset using a recovered symbol clock
-
- 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
- H04L2027/0038—Correction of carrier offset using an equaliser
-
- 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
- H04L2027/0087—Out-of-band signals, (e.g. pilots)
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Multimedia (AREA)
- Power Engineering (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
- Television Systems (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/351,065 US6445423B1 (en) | 1999-07-09 | 1999-07-09 | Controlled oscillator in a digital symbol timing recovery network |
US351065 | 1999-07-09 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE60019032D1 true DE60019032D1 (de) | 2005-05-04 |
DE60019032T2 DE60019032T2 (de) | 2005-09-08 |
Family
ID=23379425
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE60019032T Expired - Lifetime DE60019032T2 (de) | 1999-07-09 | 2000-07-04 | Gesteuerter Oszillator in einem Netzwerk zur Taktrückgewinnung von digitalen Symbolen |
Country Status (6)
Country | Link |
---|---|
US (1) | US6445423B1 (de) |
EP (1) | EP1067785B1 (de) |
JP (1) | JP4733812B2 (de) |
KR (1) | KR100639633B1 (de) |
CN (1) | CN1208961C (de) |
DE (1) | DE60019032T2 (de) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6275554B1 (en) * | 1999-07-09 | 2001-08-14 | Thomson Licensing S.A. | Digital symbol timing recovery network |
JP3537738B2 (ja) * | 2000-06-20 | 2004-06-14 | 松下電器産業株式会社 | クロック再生回路 |
KR100396672B1 (ko) * | 2001-09-25 | 2003-09-02 | 엘지전자 주식회사 | 디지털 tv 수신기 |
US7646831B2 (en) * | 2001-10-19 | 2010-01-12 | Nokia Corporation | Method and a device for controlling data extraction from a data stream containing at lease one data packet |
TW543328B (en) * | 2001-12-10 | 2003-07-21 | Silicon Integrated Sys Corp | TV decoder |
KR100442255B1 (ko) * | 2002-02-27 | 2004-07-30 | 엘지전자 주식회사 | 채널 등화 장치 |
KR100613602B1 (ko) * | 2005-02-07 | 2006-08-21 | 삼성전자주식회사 | Vsb 수신기에 적용되는 심벌 타이밍 복원 장치 및 그방법 |
US20060291082A1 (en) * | 2005-06-23 | 2006-12-28 | Steve Bounds | Extending lock-in range of a PLL or DLL |
KR100746087B1 (ko) * | 2006-03-13 | 2007-08-06 | 엘지전자 주식회사 | 디지탈 방송 수신기의 타이밍 복원 장치 및 방법 |
US8331500B2 (en) * | 2009-05-13 | 2012-12-11 | Lg Electronics Inc. | Transmitting/receiving system and method of processing broadcast signal in transmitting/receiving system |
WO2011046088A1 (ja) * | 2009-10-16 | 2011-04-21 | Quadrac株式会社 | 無線通信システム、送信装置、受信装置、受信方法、及び送信方法 |
US8666001B2 (en) * | 2011-07-15 | 2014-03-04 | Motorola Solutions, Inc. | Method and apparatus for updating symbol recovery parameters and correcting symbol timing misalignment |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3432313A1 (de) * | 1984-09-03 | 1986-03-13 | Philips Patentverwaltung Gmbh, 2000 Hamburg | Schaltungsanordnung zum synchronisieren eines signals |
JP2731722B2 (ja) * | 1994-05-26 | 1998-03-25 | 日本電気株式会社 | クロック周波数自動制御方式及びそれに用いる送信装置と受信装置 |
US5581585A (en) | 1994-10-21 | 1996-12-03 | Level One Communications, Inc. | Phase-locked loop timing recovery circuit |
JP3539793B2 (ja) * | 1995-05-01 | 2004-07-07 | 富士通テン株式会社 | シンボルタイミング再生回路 |
US5796535A (en) * | 1995-05-12 | 1998-08-18 | Cirrus Logic, Inc. | Sampled amplitude read channel employing a user data frequency synthesizer and a servo data frequency synthesizer |
KR0143115B1 (ko) * | 1995-06-09 | 1998-07-15 | 김광호 | 심볼 타이밍 복구회로 및 방법 |
US5872815A (en) | 1996-02-16 | 1999-02-16 | Sarnoff Corporation | Apparatus for generating timing signals for a digital television signal receiver |
US5838738A (en) * | 1996-07-29 | 1998-11-17 | Cirrus Logic, Inc. | Coding to improve timing recovery in a sampled amplitude read channel |
US5892632A (en) | 1996-11-18 | 1999-04-06 | Cirrus Logic, Inc. | Sampled amplitude read channel employing a residue number system FIR filter in an adaptive equalizer and in interpolated timing recovery |
JP2883866B2 (ja) * | 1997-04-21 | 1999-04-19 | 株式会社次世代デジタルテレビジョン放送システム研究所 | Ofdm復調装置 |
JP4149662B2 (ja) * | 1997-10-31 | 2008-09-10 | トムソン ライセンシング | Hdtvチューナのリカバリネットワーク |
US6356598B1 (en) * | 1998-08-26 | 2002-03-12 | Thomson Licensing S.A. | Demodulator for an HDTV receiver |
US6233295B1 (en) * | 1998-08-26 | 2001-05-15 | Thomson Licensing S.A. | Segment sync recovery network for an HDTV receiver |
JP3412558B2 (ja) * | 1999-04-30 | 2003-06-03 | 日本電気株式会社 | クロック周波数制御方法及びこれに用いる受信装置 |
US6275554B1 (en) * | 1999-07-09 | 2001-08-14 | Thomson Licensing S.A. | Digital symbol timing recovery network |
-
1999
- 1999-07-09 US US09/351,065 patent/US6445423B1/en not_active Expired - Lifetime
-
2000
- 2000-07-04 DE DE60019032T patent/DE60019032T2/de not_active Expired - Lifetime
- 2000-07-04 EP EP00114281A patent/EP1067785B1/de not_active Expired - Lifetime
- 2000-07-06 KR KR1020000038642A patent/KR100639633B1/ko active IP Right Grant
- 2000-07-07 JP JP2000206680A patent/JP4733812B2/ja not_active Expired - Lifetime
- 2000-07-10 CN CNB001204602A patent/CN1208961C/zh not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JP2001060939A (ja) | 2001-03-06 |
CN1287448A (zh) | 2001-03-14 |
KR100639633B1 (ko) | 2006-10-31 |
CN1208961C (zh) | 2005-06-29 |
EP1067785B1 (de) | 2005-03-30 |
US6445423B1 (en) | 2002-09-03 |
KR20010049730A (ko) | 2001-06-15 |
EP1067785A2 (de) | 2001-01-10 |
DE60019032T2 (de) | 2005-09-08 |
EP1067785A3 (de) | 2002-06-26 |
JP4733812B2 (ja) | 2011-07-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8320 | Willingness to grant licences declared (paragraph 23) | ||
8364 | No opposition during term of opposition |