DE69424908T2 - Signalverarbeitungsapparat - Google Patents
SignalverarbeitungsapparatInfo
- Publication number
- DE69424908T2 DE69424908T2 DE69424908T DE69424908T DE69424908T2 DE 69424908 T2 DE69424908 T2 DE 69424908T2 DE 69424908 T DE69424908 T DE 69424908T DE 69424908 T DE69424908 T DE 69424908T DE 69424908 T2 DE69424908 T2 DE 69424908T2
- Authority
- DE
- Germany
- Prior art keywords
- processing apparatus
- signal processing
- signal
- processing
- 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 - Fee Related
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/10009—Improvement or modification of read or write signals
- G11B20/10046—Improvement or modification of read or write signals filtering or equalising, e.g. setting the tap weights of an FIR filter
- G11B20/10055—Improvement or modification of read or write signals filtering or equalising, e.g. setting the tap weights of an FIR filter using partial response filtering when writing the signal to the medium or reading it therefrom
- G11B20/10083—PR1 or PR(1,1,), i.e. partial response class 1, polynomial 1+D
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/10009—Improvement or modification of read or write signals
-
- 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
- H04L25/03178—Arrangements involving sequence estimation techniques
-
- 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
- H04L2025/0335—Arrangements for removing intersymbol interference characterised by the type of transmission
- H04L2025/03356—Baseband transmission
- H04L2025/03369—Partial response
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Algebra (AREA)
- Pure & Applied Mathematics (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Error Detection And Correction (AREA)
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP25650393A JPH0795098A (ja) | 1993-09-20 | 1993-09-20 | 信号処理装置 |
JP5256500A JPH0793899A (ja) | 1993-09-20 | 1993-09-20 | 磁気記録再生装置 |
JP5256501A JPH0793915A (ja) | 1993-09-20 | 1993-09-20 | 磁気記録再生装置 |
JP5256502A JPH0793703A (ja) | 1993-09-20 | 1993-09-20 | 磁気記録再生装置 |
JP6178568A JPH0845186A (ja) | 1994-07-29 | 1994-07-29 | Agc回路及びディジタル磁気再生装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69424908D1 DE69424908D1 (de) | 2000-07-20 |
DE69424908T2 true DE69424908T2 (de) | 2000-11-09 |
Family
ID=27528727
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69424908T Expired - Fee Related DE69424908T2 (de) | 1993-09-20 | 1994-09-19 | Signalverarbeitungsapparat |
Country Status (3)
Country | Link |
---|---|
US (1) | US5809071A (de) |
EP (1) | EP0644661B1 (de) |
DE (1) | DE69424908T2 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10126801B4 (de) * | 2001-06-01 | 2006-09-21 | Infineon Technologies Ag | Verfahren und Vorrichtung zum Auswerten eines digitalen Informationssignals |
Families Citing this family (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19517405A1 (de) * | 1995-05-16 | 1996-11-21 | Thomson Brandt Gmbh | Signalverarbeitungssystem für digitale Signale |
US5764858A (en) * | 1995-09-14 | 1998-06-09 | University Of Southern California | One-dimensional signal processor with optimized solution capability |
JP2973946B2 (ja) * | 1996-10-04 | 1999-11-08 | 日本電気株式会社 | データ再生装置 |
JP3570841B2 (ja) * | 1997-03-05 | 2004-09-29 | 日本電気株式会社 | データ再生装置 |
JP3855361B2 (ja) * | 1997-05-08 | 2006-12-06 | ソニー株式会社 | 情報再生装置および再生方法 |
JP3338374B2 (ja) * | 1997-06-30 | 2002-10-28 | 松下電器産業株式会社 | 演算処理方法および装置 |
US6084926A (en) * | 1997-12-08 | 2000-07-04 | Ericsson Inc. | Method and system for demodulating radio signals |
US6252904B1 (en) * | 1998-11-13 | 2001-06-26 | Broadcom Corporation | High-speed decoder for a multi-pair gigabit transceiver |
US6249544B1 (en) * | 1998-11-13 | 2001-06-19 | Broadcom Corporation | System and method for high-speed decoding and ISI compensation in a multi-pair transceiver system |
US6253345B1 (en) * | 1998-11-13 | 2001-06-26 | Broadcom Corporation | System and method for trellis decoding in a multi-pair transceiver system |
US6201831B1 (en) * | 1998-11-13 | 2001-03-13 | Broadcom Corporation | Demodulator for a multi-pair gigabit transceiver |
US6865234B1 (en) * | 1999-01-20 | 2005-03-08 | Broadcom Corporation | Pair-swap independent trellis decoder for a multi-pair gigabit transceiver |
AU4492100A (en) * | 1999-04-22 | 2000-11-10 | Broadcom Corporation | Gigabit ethernet with timing offsets between the twisted pairs |
GB2349756B (en) * | 1999-05-06 | 2003-05-14 | Sony Uk Ltd | Signal processors |
JP2000341136A (ja) * | 1999-05-27 | 2000-12-08 | Sony Corp | 復号装置及びデータの復号方法 |
US7020185B1 (en) | 2000-11-28 | 2006-03-28 | Lucent Technologies Inc. | Method and apparatus for determining channel conditions in a communication system |
WO2003032314A1 (fr) | 2001-10-04 | 2003-04-17 | Sony Corporation | Appareil et procede de detection de codes |
CN100433156C (zh) * | 2002-08-15 | 2008-11-12 | 联发科技股份有限公司 | 光盘机中具有最大似然数据检测电路的数据读出系统 |
GB2400002A (en) * | 2003-03-27 | 2004-09-29 | Tandberg Television Asa | Decoding a concatenated convolutional and block encoded signal by marking known correct bits |
EP1496512A1 (de) | 2003-07-09 | 2005-01-12 | Deutsche Thomson-Brandt Gmbh | Verfahren zur adaptiven Datenrückgewinnung |
US6980140B1 (en) * | 2004-06-18 | 2005-12-27 | Nortel Networks Limited | Flash ADC receiver with reduced errors |
US7430084B2 (en) | 2004-12-03 | 2008-09-30 | International Business Machines Corporation | Magnetic tape read channel signal values developed employing intermediate bits of the path memory of a PRML viterbi detector |
JP2006344294A (ja) * | 2005-06-09 | 2006-12-21 | Hitachi Ltd | 情報再生装置及び再生信号処理回路 |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4644564A (en) * | 1983-08-05 | 1987-02-17 | International Business Machines Corporation | Decoding the output signal of a partial-response class-IV communication or recording device channel |
US4583078A (en) * | 1984-11-13 | 1986-04-15 | Communications Satellite Corporation | Serial Viterbi decoder |
US4868830A (en) * | 1985-09-27 | 1989-09-19 | California Institute Of Technology | Method and apparatus for implementing a traceback maximum-likelihood decoder in a hypercube network |
JPH0824270B2 (ja) * | 1985-12-25 | 1996-03-06 | 日本電信電話株式会社 | たたみ込み符号器および最尤復号器 |
AU629300B2 (en) * | 1989-02-28 | 1992-10-01 | Sony Corporation | Digital signal reproducing apparatus |
US5424882A (en) * | 1989-03-13 | 1995-06-13 | Hitachi, Ltd. | Signal processor for discriminating recording data |
JPH03128552A (ja) * | 1989-07-31 | 1991-05-31 | Nec Corp | データ伝送システムのための変復調装置 |
US5050191A (en) * | 1989-10-24 | 1991-09-17 | Hughes Aircraft Company | Synchronization detector using path metric and branch metric values of a Viterbi decoder |
US5265125A (en) * | 1990-11-16 | 1993-11-23 | Matsushita Electric Industrial Co., Ltd. | Signal detection apparatus for detecting digital information from PCM signal |
JP2668455B2 (ja) * | 1990-12-20 | 1997-10-27 | 富士通株式会社 | ビタビ復調制御方式 |
EP0510756B1 (de) * | 1991-04-24 | 1997-12-10 | Koninklijke Philips Electronics N.V. | Abtasttaktrückwinnung für Empfänger, die Viterbi-Verarbeitung benutzen |
GB2255482B (en) | 1991-05-01 | 1995-05-10 | Silicon Systems Inc | Maximum likelihood sequence metric calculator |
US5159608A (en) * | 1991-08-28 | 1992-10-27 | Falconer David D | Method and apparatus for using orthogonal coding in a communication system |
US5204874A (en) * | 1991-08-28 | 1993-04-20 | Motorola, Inc. | Method and apparatus for using orthogonal coding in a communication system |
JPH05234279A (ja) * | 1992-02-24 | 1993-09-10 | Sony Corp | 最尤復号装置及びこれを用いた再生データ復調装置 |
JP3470341B2 (ja) * | 1992-11-13 | 2003-11-25 | ソニー株式会社 | ディジタル信号再生回路 |
-
1994
- 1994-09-19 DE DE69424908T patent/DE69424908T2/de not_active Expired - Fee Related
- 1994-09-19 EP EP94306842A patent/EP0644661B1/de not_active Expired - Lifetime
-
1997
- 1997-10-29 US US08/967,221 patent/US5809071A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10126801B4 (de) * | 2001-06-01 | 2006-09-21 | Infineon Technologies Ag | Verfahren und Vorrichtung zum Auswerten eines digitalen Informationssignals |
Also Published As
Publication number | Publication date |
---|---|
DE69424908D1 (de) | 2000-07-20 |
EP0644661B1 (de) | 2000-06-14 |
EP0644661A1 (de) | 1995-03-22 |
US5809071A (en) | 1998-09-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |