JP4974247B2 - ディジタル信号処理装置におけるタイミング再生装置 - Google Patents
ディジタル信号処理装置におけるタイミング再生装置 Download PDFInfo
- Publication number
- JP4974247B2 JP4974247B2 JP2008236709A JP2008236709A JP4974247B2 JP 4974247 B2 JP4974247 B2 JP 4974247B2 JP 2008236709 A JP2008236709 A JP 2008236709A JP 2008236709 A JP2008236709 A JP 2008236709A JP 4974247 B2 JP4974247 B2 JP 4974247B2
- Authority
- JP
- Japan
- Prior art keywords
- signal
- sample
- delay
- transmitter
- fixed frequency
- 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
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Classifications
-
- 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
- H03L7/081—Details of the phase-locked loop provided with an additional controlled phase shifter
- H03L7/0812—Details of the phase-locked loop provided with an additional controlled phase shifter and where no voltage or current controlled oscillator is used
- H03L7/0814—Details of the phase-locked loop provided with an additional controlled phase shifter and where no voltage or current controlled oscillator is used the phase shifting device being digitally controlled
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
- H04L27/22—Demodulator circuits; Receiver circuits
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L7/00—Arrangements for synchronising receiver with transmitter
- H04L7/0016—Arrangements for synchronising receiver with transmitter correction of synchronization errors
- H04L7/002—Arrangements for synchronising receiver with transmitter correction of synchronization errors correction by interpolation
- H04L7/0029—Arrangements for synchronising receiver with transmitter correction of synchronization errors correction by interpolation interpolation of received data signal
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/41—Structure of client; Structure of client peripherals
- H04N21/426—Internal components of the client ; Characteristics thereof
-
- 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
- H03L2207/50—All digital phase-locked loop
-
- 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
- H03L7/093—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal using special filtering or amplification characteristics in the loop
-
- 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
- H03L7/099—Details of the phase-locked loop concerning mainly the controlled oscillator of the loop
- H03L7/0991—Details of the phase-locked loop concerning mainly the controlled oscillator of the loop the oscillator being a digital oscillator, e.g. composed of a fixed oscillator followed by a variable frequency divider
- H03L7/0994—Details of the phase-locked loop concerning mainly the controlled oscillator of the loop the oscillator being a digital oscillator, e.g. composed of a fixed oscillator followed by a variable frequency divider comprising an accumulator
-
- 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
- H04L7/033—Speed or phase control by the received code signals, the signals containing no special synchronisation information using the transitions of the received signal to control the phase of the synchronising-signal-generating means, e.g. using a phase-locked loop
- H04L7/0334—Processing of samples having at least three levels, e.g. soft decisions
- H04L7/0335—Gardner detector
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/04—Synchronising
Description
INおよび直角位相(Q)信号入力端子Q INは図2の補間装置12の対応する各出力端子に結合されている。同相入力端子I INは遅延素子102、遅延素子103および合計器108の反転入力端子からなる直列接続回路に結合されている。同相入力端子I INはまた合計器108の第2の入力端子に結合されている。合計器108の出力端子は乗算器110の第1の入力端子に結合されており、遅延素子102の出力端子は上記乗算器110の第2の入力端子に結合されている。乗算器110の出力端子は合計器114の第1の入力端子に結合されている。
12 補間装置
14 フィルタ
16 位相誤差検出器
31 遅延レジスタ(公称遅延信号源)
32 合計器
34 マルチプレクサ
36 加算器
38 遅延装置(アキュムレータ)
40 整数部分選択装置
41 比較器
42 遅延装置
44 モジュロ2カウンタ
46 アンドゲート
48 分数部分選択装置
261 固定周波数発振器
Claims (6)
- 受信信号を表わすサンプルのサンプル源と、
前記サンプル源に結合されており且つ送信機同期化サンプルに関わるサンプル・クロックの隣接するサイクルに関連する制御信号に応答して送信機からの連続するシンボルに同期した時点で取り出されたサンプルを生成する、区分的パラボラ・フィルタからなる補間装置と、
前記制御信号を供給する制御回路網であって、(a)前記補間装置からの出力信号と(b)前記連続するシンボルの所望のシンボル・レートに基づく予め設定された公称遅延信号とに応じた前記制御信号を供給する被制御遅延回路網を含む前記制御回路網と、
から成る連続するシンボルを表わす信号を受信するディジタル信号処理装置用のタイミング再生装置。 - 前記サンプル源は前記サンプルが固定された周波数で取り出されるように構成されている請求項1記載のタイミング再生装置。
- 前記固定された周波数は予想される最高送信機同期化サンプル率の2倍よりも高い、請求項2記載のタイミング再生装置。
- 前記固定された周波数は送信機同期化サンプル率の2倍よりも高い、請求項2記載のタイミング再生装置。
- 前記固定された周波数は62MHzであり、送信機同期化シンボル・レートは30Mシンボル/秒である請求項4記載のタイミング再生装置。
- 前記固定された周波数は62MHzであり、送信機同期化シンボル・レートは20Mシンボル/秒である請求項4記載のタイミング再生装置。
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US721780 | 1991-06-28 | ||
US1233996P | 1996-02-27 | 1996-02-27 | |
US012339 | 1996-02-27 | ||
US08/721,780 US5943369A (en) | 1996-02-27 | 1996-09-25 | Timing recovery system for a digital signal processor |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP05716397A Division JP4212067B2 (ja) | 1996-02-27 | 1997-02-26 | ディジタル信号処理装置におけるタイミング再生装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2008301537A JP2008301537A (ja) | 2008-12-11 |
JP4974247B2 true JP4974247B2 (ja) | 2012-07-11 |
Family
ID=26683446
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP05716397A Expired - Fee Related JP4212067B2 (ja) | 1996-02-27 | 1997-02-26 | ディジタル信号処理装置におけるタイミング再生装置 |
JP2008236709A Expired - Lifetime JP4974247B2 (ja) | 1996-02-27 | 2008-09-16 | ディジタル信号処理装置におけるタイミング再生装置 |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP05716397A Expired - Fee Related JP4212067B2 (ja) | 1996-02-27 | 1997-02-26 | ディジタル信号処理装置におけるタイミング再生装置 |
Country Status (11)
Country | Link |
---|---|
US (1) | US5943369A (ja) |
EP (1) | EP0793363B1 (ja) |
JP (2) | JP4212067B2 (ja) |
KR (1) | KR100812554B1 (ja) |
CN (1) | CN1157904C (ja) |
BR (1) | BR9700851B1 (ja) |
DE (1) | DE69738879D1 (ja) |
HK (1) | HK1005396A1 (ja) |
ID (1) | ID16554A (ja) |
MY (1) | MY114450A (ja) |
SG (1) | SG64965A1 (ja) |
Families Citing this family (34)
Publication number | Priority date | Publication date | Assignee | Title |
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JP3886159B2 (ja) * | 1996-09-20 | 2007-02-28 | トムソン コンシユーマ エレクトロニクス インコーポレイテツド | タイミング復元システム |
US6421396B1 (en) * | 1997-04-16 | 2002-07-16 | Broadcom Corporation | Variable rate modulator |
TW371758B (en) * | 1997-06-04 | 1999-10-11 | Siemens Ag | Method to optimize the signal-propagation-time in a reprogrammable switching circuit and reprogrammable switching circuit with program-code optimized in said signal-propagation time |
GB2331210A (en) * | 1997-09-12 | 1999-05-12 | Daewoo Electronics Co Ltd | Timing recovery in vestigial sideband modulation |
US6144712A (en) | 1997-10-09 | 2000-11-07 | Broadcom Corporation | Variable rate modulator |
US6128357A (en) * | 1997-12-24 | 2000-10-03 | Mitsubishi Electric Information Technology Center America, Inc (Ita) | Data receiver having variable rate symbol timing recovery with non-synchronized sampling |
JP3363768B2 (ja) * | 1997-12-26 | 2003-01-08 | 株式会社ケンウッド | ディジタル復調器 |
US6351293B1 (en) * | 1998-05-18 | 2002-02-26 | Sarnoff Corporation | Decision directed phase detector |
US6381291B1 (en) * | 1998-09-28 | 2002-04-30 | Harris Corporation | Phase detector and method |
KR100324749B1 (ko) * | 1998-10-09 | 2002-03-13 | 구자홍 | 최대 가능성 심볼 타이밍 복원기 |
US6563862B1 (en) * | 1998-10-21 | 2003-05-13 | Thomson Licensing Sa | Digital variable symbol rate modulation |
US6370160B1 (en) * | 1998-12-29 | 2002-04-09 | Thomson Licensing S. A. | Base to handset epoch synchronization in multi-line wireless telephone |
DE60030801T2 (de) * | 1999-05-11 | 2007-09-06 | Koninklijke Philips Electronics N.V. | Übertragungssystem und Empfänger mit Vorrichtung zur Dezimation |
KR100346783B1 (ko) * | 1999-07-19 | 2002-08-01 | 한국전자통신연구원 | 보간 필터를 사용한 타이밍 복원장치 및 방법 |
US7039139B1 (en) * | 1999-07-21 | 2006-05-02 | Honeywell International Inc. | System for increasing digital data demodulator synchronization timing resolution using training sequence correlation values |
US6480535B1 (en) * | 1999-07-26 | 2002-11-12 | Sony Corporation | Generating multi-channel outputs simultaneously in a receiver using polyphase filter |
US6545532B1 (en) * | 1999-09-08 | 2003-04-08 | Atmel Corporation | Timing recovery circuit in a QAM demodulator |
US6600495B1 (en) | 2000-01-10 | 2003-07-29 | Koninklijke Philips Electronics N.V. | Image interpolation and decimation using a continuously variable delay filter and combined with a polyphase filter |
DE10002964A1 (de) * | 2000-01-25 | 2001-07-26 | Philips Corp Intellectual Pty | Anordnung zur Filterung digitaler Daten |
US6816328B2 (en) | 2000-06-20 | 2004-11-09 | Infineon Technologies North America Corp. | Pseudo-synchronous interpolated timing recovery for a sampled amplitude read channel |
EP1233568B1 (en) * | 2000-10-11 | 2008-01-16 | NTT Electronics Corporation | Phase comparator circuit |
US6993104B2 (en) * | 2001-04-27 | 2006-01-31 | Adtran, Inc. | Apparatus and method for adaptively adjusting a timing loop |
US6775341B2 (en) | 2001-11-30 | 2004-08-10 | Motorola, Inc. | Time recovery circuit and method for synchronizing timing of a signal in a receiver to timing of the signal in a transmitter |
US20030149907A1 (en) * | 2001-12-26 | 2003-08-07 | Singh Chandra Mauli | Method and apparatus for uplink clock extraction in a communication system |
WO2004066355A2 (en) * | 2003-01-17 | 2004-08-05 | Thomson Licensing S.A. | A method for using a synchronous sampling design in a fixed-rate sampling mode |
US7450655B2 (en) * | 2003-07-22 | 2008-11-11 | Intel Corporation | Timing error detection for a digital receiver |
DE10334064B3 (de) * | 2003-07-25 | 2005-04-14 | Infineon Technologies Ag | Verfahren und Schaltungsanordnung zum Kalibrieren eines den Abtastzeitpunkt eines Empfangssignals beeinflussenden Abtastungssteuersignales eines Abtastphasenauswahlelements |
KR100752735B1 (ko) * | 2006-04-10 | 2007-08-28 | 삼성전기주식회사 | 패킷기반 무선통신의 타이밍 위상 오차 검출 시스템 및 그검출 방법 |
US8045670B2 (en) * | 2007-06-22 | 2011-10-25 | Texas Instruments Incorporated | Interpolative all-digital phase locked loop |
GB0815458D0 (en) * | 2008-08-26 | 2008-10-01 | Zarlink Semiconductor Inc | Method of transferring timing information over packet network |
KR20160037656A (ko) * | 2014-09-29 | 2016-04-06 | 삼성전자주식회사 | 에러 검출기 및 발진기의 에러 검출 방법 |
US11038602B1 (en) | 2020-02-05 | 2021-06-15 | Credo Technology Group Limited | On-chip jitter evaluation for SerDes |
US10992501B1 (en) | 2020-03-31 | 2021-04-27 | Credo Technology Group Limited | Eye monitor for parallelized digital equalizers |
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-
1996
- 1996-09-25 US US08/721,780 patent/US5943369A/en not_active Expired - Lifetime
-
1997
- 1997-02-01 SG SG1997000233A patent/SG64965A1/en unknown
- 1997-02-04 BR BRPI9700851-6A patent/BR9700851B1/pt not_active IP Right Cessation
- 1997-02-05 MY MYPI97000457A patent/MY114450A/en unknown
- 1997-02-17 CN CNB971025274A patent/CN1157904C/zh not_active Expired - Fee Related
- 1997-02-20 EP EP97400374A patent/EP0793363B1/en not_active Expired - Lifetime
- 1997-02-20 DE DE69738879T patent/DE69738879D1/de not_active Expired - Lifetime
- 1997-02-26 JP JP05716397A patent/JP4212067B2/ja not_active Expired - Fee Related
- 1997-02-27 ID IDP970580A patent/ID16554A/id unknown
-
1998
- 1998-05-27 HK HK98104563A patent/HK1005396A1/xx not_active IP Right Cessation
-
2005
- 2005-08-05 KR KR1020050071968A patent/KR100812554B1/ko not_active IP Right Cessation
-
2008
- 2008-09-16 JP JP2008236709A patent/JP4974247B2/ja not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
CN1168027A (zh) | 1997-12-17 |
EP0793363B1 (en) | 2008-08-06 |
EP0793363A2 (en) | 1997-09-03 |
JPH09247569A (ja) | 1997-09-19 |
DE69738879D1 (de) | 2008-09-18 |
EP0793363A3 (en) | 2004-07-07 |
JP2008301537A (ja) | 2008-12-11 |
BR9700851A (pt) | 1998-09-01 |
JP4212067B2 (ja) | 2009-01-21 |
HK1005396A1 (en) | 1999-01-08 |
ID16554A (id) | 1997-10-16 |
KR20070095473A (ko) | 2007-10-01 |
MY114450A (en) | 2002-10-31 |
KR100812554B1 (ko) | 2008-03-13 |
BR9700851B1 (pt) | 2009-08-11 |
MX9701490A (es) | 1998-06-30 |
CN1157904C (zh) | 2004-07-14 |
US5943369A (en) | 1999-08-24 |
SG64965A1 (en) | 1999-05-25 |
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