ATE163792T1 - Einrichtung zur wiedergabe eines digitalen signals von einem aufzeichnungsträger mit einem variablen entzerrer - Google Patents
Einrichtung zur wiedergabe eines digitalen signals von einem aufzeichnungsträger mit einem variablen entzerrerInfo
- Publication number
- ATE163792T1 ATE163792T1 AT93202241T AT93202241T ATE163792T1 AT E163792 T1 ATE163792 T1 AT E163792T1 AT 93202241 T AT93202241 T AT 93202241T AT 93202241 T AT93202241 T AT 93202241T AT E163792 T1 ATE163792 T1 AT E163792T1
- Authority
- AT
- Austria
- Prior art keywords
- signal
- variable equalizer
- transmission path
- equalizer
- unit
- Prior art date
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
-
- 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
-
- 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
- H04L25/03114—Arrangements for removing intersymbol interference operating in the time domain non-adaptive, i.e. not adjustable, manually adjustable, or adjustable only during the reception of special signals
- H04L25/03133—Arrangements for removing intersymbol interference operating in the time domain non-adaptive, i.e. not adjustable, manually adjustable, or adjustable only during the reception of special signals with a non-recursive structure
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
- Digital Magnetic Recording (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
- Filters That Use Time-Delay Elements (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP92202427 | 1992-08-06 |
Publications (1)
Publication Number | Publication Date |
---|---|
ATE163792T1 true ATE163792T1 (de) | 1998-03-15 |
Family
ID=8210831
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT93202241T ATE163792T1 (de) | 1992-08-06 | 1993-07-29 | Einrichtung zur wiedergabe eines digitalen signals von einem aufzeichnungsträger mit einem variablen entzerrer |
Country Status (4)
Country | Link |
---|---|
US (1) | US5504633A (de) |
JP (2) | JPH06208761A (de) |
AT (1) | ATE163792T1 (de) |
DE (1) | DE69317181T2 (de) |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6650688B1 (en) * | 1999-12-20 | 2003-11-18 | Intel Corporation | Chip rate selectable square root raised cosine filter for mobile telecommunications |
US6600617B1 (en) | 2000-03-07 | 2003-07-29 | International Business Machines Corporation | Method and apparatus for adjusting digital filter taps based upon minimization of viterbi margin counts |
US7173551B2 (en) * | 2000-12-21 | 2007-02-06 | Quellan, Inc. | Increasing data throughput in optical fiber transmission systems |
US7149256B2 (en) | 2001-03-29 | 2006-12-12 | Quellan, Inc. | Multilevel pulse position modulation for efficient fiber optic communication |
US7307569B2 (en) * | 2001-03-29 | 2007-12-11 | Quellan, Inc. | Increasing data throughput in optical fiber transmission systems |
WO2002082694A1 (en) * | 2001-04-04 | 2002-10-17 | Quellan, Inc. | Method and system for decoding multilevel signals |
US20030030873A1 (en) * | 2001-05-09 | 2003-02-13 | Quellan, Inc. | High-speed adjustable multilevel light modulation |
US7212580B2 (en) * | 2002-02-15 | 2007-05-01 | Quellan, Inc. | Multi-level signal clock recovery technique |
US6816101B2 (en) * | 2002-03-08 | 2004-11-09 | Quelian, Inc. | High-speed analog-to-digital converter using a unique gray code |
AU2003223687A1 (en) * | 2002-04-23 | 2003-11-10 | Quellan, Inc. | Combined ask/dpsk modulation system |
JP2004013681A (ja) * | 2002-06-10 | 2004-01-15 | Bosu & K Consulting Kk | 名刺情報管理システム |
US7035361B2 (en) * | 2002-07-15 | 2006-04-25 | Quellan, Inc. | Adaptive noise filtering and equalization for optimal high speed multilevel signal decoding |
WO2004045078A2 (en) | 2002-11-12 | 2004-05-27 | Quellan, Inc. | High-speed analog-to-digital conversion with improved robustness to timing uncertainty |
WO2005018134A2 (en) * | 2003-08-07 | 2005-02-24 | Quellan, Inc. | Method and system for crosstalk cancellation |
US7804760B2 (en) * | 2003-08-07 | 2010-09-28 | Quellan, Inc. | Method and system for signal emulation |
US20070147490A1 (en) * | 2003-11-11 | 2007-06-28 | Kouji Okamoto | Filter coefficient adjusting circuit |
JP4510832B2 (ja) * | 2003-11-17 | 2010-07-28 | ケラン インコーポレイテッド | アンテナ干渉消去のための方法およびシステム |
US7616700B2 (en) * | 2003-12-22 | 2009-11-10 | Quellan, Inc. | Method and system for slicing a communication signal |
US7725079B2 (en) * | 2004-12-14 | 2010-05-25 | Quellan, Inc. | Method and system for automatic control in an interference cancellation device |
US7522883B2 (en) | 2004-12-14 | 2009-04-21 | Quellan, Inc. | Method and system for reducing signal interference |
WO2007127369A2 (en) * | 2006-04-26 | 2007-11-08 | Quellan, Inc. | Method and system for reducing radiated emissions from a communications channel |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4615037A (en) * | 1985-01-29 | 1986-09-30 | Ampex Corporation | Phase scatter detection and reduction circuit and method |
US4888808A (en) * | 1987-03-23 | 1989-12-19 | Matsushita Electric Industrial Co., Ltd. | Digital equalizer apparatus enabling separate phase and amplitude characteristic modification |
JPH01229516A (ja) * | 1988-03-10 | 1989-09-13 | Sony Corp | 自動等化器 |
US5237588A (en) * | 1989-03-13 | 1993-08-17 | Sony Corporation | Automatic equalizer |
EP0454445B1 (de) * | 1990-04-26 | 1996-07-03 | Fujitsu Limited | Wellenformentzerrer mit Neuronalnetzwerk |
-
1993
- 1993-07-29 AT AT93202241T patent/ATE163792T1/de active
- 1993-07-29 DE DE69317181T patent/DE69317181T2/de not_active Expired - Fee Related
- 1993-08-04 JP JP5212348A patent/JPH06208761A/ja active Pending
-
1994
- 1994-11-21 US US08/342,684 patent/US5504633A/en not_active Expired - Fee Related
-
2002
- 2002-09-09 JP JP2002263122A patent/JP2003178529A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
DE69317181T2 (de) | 1998-08-20 |
JP2003178529A (ja) | 2003-06-27 |
DE69317181D1 (de) | 1998-04-09 |
JPH06208761A (ja) | 1994-07-26 |
US5504633A (en) | 1996-04-02 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE69317181D1 (de) | Einrichtung zur Wiedergabe eines digitalen Signals von einem Aufzeichnungsträger mit einem variablen Entzerrer | |
US4121295A (en) | Integer weighted impulse equivalent coded signal processing apparatus | |
MY128258A (en) | Optical information recording medium, optical information recording apparatus, and method of recording test signal on the same | |
JPS6410406A (en) | Magnetic recording and reproducing device | |
US5319502A (en) | System and method for employing buried servos within a magnetic recording medium | |
KR940009954A (ko) | 디지틀신호의 주파수특성을 제어하여 디지틀신호를 기록하는 장치 | |
JPS6243267B2 (de) | ||
US3775759A (en) | Magnetic recording and readback systems with raised cosine equalization | |
KR950703815A (ko) | 광기록 시스템에서의 디지탈 이퀼라이제이션 | |
US3940694A (en) | Apparatus and method for reducing multiplicative gain variation distortions in data recording and transmission channels | |
US6091558A (en) | Device for write compensation in magnetic media recording | |
KR840007295A (ko) | 디지탈신호의 재생장치 | |
US4330799A (en) | Interleaved dipulse sequence generating apparatus for data transmission or recording channels | |
US4195318A (en) | High density bias linearized magnetic recording system utilizing Nyquist bandwidth partial response transmission | |
TWI256623B (en) | Equalizer for high density optical disc reproducing apparatus and equalizing method therefor | |
US4389682A (en) | Magnetic recording systems | |
SU1644212A1 (ru) | Способ записи-воспроизведени аналоговых сигналов на движущийс носитель и устройство дл его осуществлени | |
US6392973B1 (en) | Method and apparatus for recording digital data by forming pits on recording medium | |
Schneider | Design methodology for high-density read equalization | |
GB1177774A (en) | High Density and/or High Frequency Digital Recording | |
EP0585991B1 (de) | Einrichtung zur Wiedergabe eines digitalen Signals von einem Aufzeichnungsträger mit einem variablen Entzerrer | |
SU1663626A1 (ru) | Устройство дл многоканальной магнитной записи и воспроизведени сигналов | |
SU1513509A1 (ru) | Устройство записи цифровой информации на магнитный носитель | |
SU1108497A1 (ru) | Устройство опережающего шумопонижени фотографических фонограмм | |
KR930003092A (ko) | 디지탈 자기기록 재생장치 |