DE69708366T2 - Signalverarbeitungskanal - Google Patents
SignalverarbeitungskanalInfo
- Publication number
- DE69708366T2 DE69708366T2 DE69708366T DE69708366T DE69708366T2 DE 69708366 T2 DE69708366 T2 DE 69708366T2 DE 69708366 T DE69708366 T DE 69708366T DE 69708366 T DE69708366 T DE 69708366T DE 69708366 T2 DE69708366 T2 DE 69708366T2
- Authority
- DE
- Germany
- Prior art keywords
- data symbols
- signal
- circuitry
- output signal
- input
- 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
- 238000012545 processing Methods 0.000 title claims description 12
- 230000004044 response Effects 0.000 claims description 31
- 238000007493 shaping process Methods 0.000 claims description 24
- 230000005291 magnetic effect Effects 0.000 claims description 21
- 230000000630 rising effect Effects 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 14
- 230000003044 adaptive effect Effects 0.000 claims description 13
- 230000007704 transition Effects 0.000 claims description 11
- 230000001965 increasing effect Effects 0.000 claims description 4
- 238000001914 filtration Methods 0.000 claims 5
- 230000003247 decreasing effect Effects 0.000 claims 1
- 230000003111 delayed effect Effects 0.000 description 6
- 230000009467 reduction Effects 0.000 description 6
- 230000008901 benefit Effects 0.000 description 5
- 239000003990 capacitor Substances 0.000 description 5
- 238000001514 detection method Methods 0.000 description 5
- 238000013459 approach Methods 0.000 description 4
- 230000000295 complement effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 208000019300 CLIPPERS Diseases 0.000 description 2
- 208000021930 chronic lymphocytic inflammation with pontine perivascular enhancement responsive to steroids Diseases 0.000 description 2
- 238000012937 correction Methods 0.000 description 2
- 230000001939 inductive effect Effects 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 238000007476 Maximum Likelihood Methods 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 239000000872 buffer Substances 0.000 description 1
- 238000005094 computer simulation Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000011143 downstream manufacturing Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000010363 phase shift Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
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
- G11B20/10203—Improvement or modification of read or write signals filtering or equalising, e.g. setting the tap weights of an FIR filter baseline correction
-
- 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
- H04L25/03828—Arrangements for spectral shaping; Arrangements for providing signals with specified spectral properties
- H04L25/03834—Arrangements for spectral shaping; Arrangements for providing signals with specified spectral properties using pulse shaping
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Digital Magnetic Recording (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
- Dc Digital Transmission (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US08/628,173 US5774505A (en) | 1996-04-04 | 1996-04-04 | Intersymbol interference cancellation with reduced complexity |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE69708366D1 DE69708366D1 (de) | 2002-01-03 |
| DE69708366T2 true DE69708366T2 (de) | 2002-05-16 |
Family
ID=24517781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE69708366T Expired - Fee Related DE69708366T2 (de) | 1996-04-04 | 1997-03-19 | Signalverarbeitungskanal |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US5774505A (https=) |
| EP (1) | EP0800171B1 (https=) |
| JP (1) | JP3806219B2 (https=) |
| DE (1) | DE69708366T2 (https=) |
Families Citing this family (44)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5892801A (en) * | 1996-03-04 | 1999-04-06 | Adtran, Inc. | Decision path reduction of M-ary tree-search detector |
| US6278744B1 (en) | 1996-11-15 | 2001-08-21 | Conexant Systems, Inc. | System for controlling and shaping the spectrum and redundancy of signal-point limited transmission |
| US6192087B1 (en) | 1996-11-15 | 2001-02-20 | Conexant Systems, Inc. | Method and apparatus for spectral shaping in signal-point limited transmission systems |
| US6285709B1 (en) * | 1997-10-31 | 2001-09-04 | 3 Com Corporation | Error filtering in a hybrid equalizer system |
| WO1999039334A1 (en) * | 1998-01-28 | 1999-08-05 | Fujitsu Limited | Error propagation suppressing method in decision feedback equalization and magnetic recording / reproducing apparatus using the method |
| US6473253B1 (en) * | 1999-04-28 | 2002-10-29 | Koninklijke Philips Electronics N.V. | Read channel with programmable bandwidth control |
| US6233276B1 (en) | 1999-09-13 | 2001-05-15 | Virata Corporation | XDSL modem having time domain filter for ISI mitigation |
| US7173551B2 (en) * | 2000-12-21 | 2007-02-06 | Quellan, Inc. | Increasing data throughput in optical fiber transmission systems |
| US7307569B2 (en) | 2001-03-29 | 2007-12-11 | 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 |
| CA2442922A1 (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 |
| US7349489B2 (en) * | 2001-08-13 | 2008-03-25 | Nokia Siemens Networks Gmbh & Co. Kg | Pulse shaping filter with minimal intersymbol interference |
| FR2831735B1 (fr) * | 2001-10-26 | 2004-01-30 | France Telecom | Annuleur d'interferences entre symboles |
| US7221958B2 (en) * | 2001-12-12 | 2007-05-22 | Ericsson Inc. | Received signal filtering for enhanced selectivity |
| AU2003211094A1 (en) | 2002-02-15 | 2003-09-09 | Quellan, Inc. | Multi-level signal clock recovery technique |
| 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 |
| US7180950B2 (en) * | 2002-11-01 | 2007-02-20 | Avago Technologies Fiber Ip (Singapore) Pte. Ltd. | Low-noise feedback cancellation filter for enhanced common-mode rejection and noise immunity |
| AU2003287628A1 (en) | 2002-11-12 | 2004-06-03 | Quellan, Inc. | High-speed analog-to-digital conversion with improved robustness to timing uncertainty |
| US7376356B2 (en) * | 2002-12-17 | 2008-05-20 | Lucent Technologies Inc. | Optical data transmission system using sub-band multiplexing |
| US20040190661A1 (en) * | 2003-03-26 | 2004-09-30 | Quellan, Inc. | Method and system for equalizing communication signals |
| US6917223B2 (en) * | 2003-04-22 | 2005-07-12 | Texas Instruments Incorporated | Gaussian noise generator |
| US7804760B2 (en) | 2003-08-07 | 2010-09-28 | Quellan, Inc. | Method and system for signal emulation |
| WO2005018134A2 (en) | 2003-08-07 | 2005-02-24 | Quellan, Inc. | Method and system for crosstalk cancellation |
| ATE488068T1 (de) | 2003-11-17 | 2010-11-15 | Quellan Inc | Verfahren und system zur löschung von antennenstörungen |
| US7522847B2 (en) * | 2003-12-19 | 2009-04-21 | Broadcom Corporation | Continuous time filter-decision feedback equalizer architecture for optical channel equalization |
| US7822113B2 (en) * | 2003-12-19 | 2010-10-26 | Broadcom Corporation | Integrated decision feedback equalizer and clock and data recovery |
| US7616700B2 (en) | 2003-12-22 | 2009-11-10 | Quellan, Inc. | Method and system for slicing a communication signal |
| KR100520224B1 (ko) * | 2003-12-23 | 2005-10-11 | 삼성전자주식회사 | 반도체 메모리 장치에서의 ｉｓｉ 제거장치 및 그에 따른ｉｓｉ 제거방법 |
| US7243798B2 (en) * | 2004-08-04 | 2007-07-17 | Fisher Clinical Services | System and a method for a V-indent blister opening cavity |
| US7522883B2 (en) * | 2004-12-14 | 2009-04-21 | Quellan, Inc. | Method and system for reducing signal interference |
| US7725079B2 (en) | 2004-12-14 | 2010-05-25 | Quellan, Inc. | Method and system for automatic control in an interference cancellation device |
| US7480110B2 (en) * | 2005-04-13 | 2009-01-20 | Hewlett-Packard Development Company, L.P. | Medium dependent write equalization |
| US7251090B2 (en) * | 2005-04-13 | 2007-07-31 | Hewlett-Packard Development Company, L.P. | Pattern dependent write equalization |
| US7580452B2 (en) * | 2005-11-17 | 2009-08-25 | Avago Technologies General Ip (Singapore) Pte. Ltd. | Dynamic comparator system |
| KR101372361B1 (ko) | 2006-04-26 | 2014-03-12 | 인터실 아메리카스 엘엘씨 | 통신 채널로부터 복사성 방출을 감소시키기 위한 방법 및 시스템 |
| US9148313B2 (en) * | 2007-01-09 | 2015-09-29 | Rambus, Inc. | Equalizing transmitter and method of operation |
| US8094707B1 (en) | 2007-03-21 | 2012-01-10 | Arrowhead Center, Inc. | List-based detection in fading channels with long intersymbol interference |
| KR101368413B1 (ko) * | 2007-10-31 | 2014-03-04 | 삼성전자 주식회사 | 반도체 메모리 장치에서의 ｄｆｅ회로 및 그의 초기화방법 |
| US8170829B1 (en) | 2008-03-24 | 2012-05-01 | Cisco Technology, Inc. | Tester bundle |
| US8963573B2 (en) | 2011-12-22 | 2015-02-24 | Cisco Technology, Inc. | Universal test system for testing electrical and optical hosts |
| MX341538B (es) * | 2011-12-31 | 2016-08-24 | Broad-Ocean Motor Ev Co Ltd | Circuito de filtro de pulsos angostos con compensacion automatica y controlador de motor que lo aplica. |
| US20150372805A1 (en) * | 2014-06-23 | 2015-12-24 | Qualcomm Incorporated | Asynchronous pulse modulation for threshold-based signal coding |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4283788A (en) * | 1976-06-25 | 1981-08-11 | Cselt - Centro Studi E Laboratori Telecomunicazioni S.P.A. | Equalization system with preshaping filter |
| US4276573A (en) * | 1979-06-29 | 1981-06-30 | Datapoint Corporation | Pulse shaping network for disc read circuitry |
| NL8701332A (nl) * | 1987-06-09 | 1989-01-02 | Philips Nv | Systeem voor transmissie van datasignalen met gebruikmaking van beslissingsteruggekoppelde egalisatie. |
| US4953041A (en) * | 1989-01-24 | 1990-08-28 | Maxtor Corporation | Read channel detector for use in digital magnetic recording systems |
| US5107379A (en) * | 1989-01-24 | 1992-04-21 | Maxtor Corporation | Read channel detector with improved signaling speed |
| US5235540A (en) * | 1990-04-26 | 1993-08-10 | Silicon Systems, Inc. | Parasitic insensitive programmable biquadratic pulse slimming technique |
| US5168395A (en) * | 1990-05-02 | 1992-12-01 | International Business Machines Corporation | Controlled magnetic recording head relaxation in a magnetic recording system |
| US5153875A (en) * | 1991-03-25 | 1992-10-06 | Level One Communications, Inc. | Adaptive balancing network |
| JP2552053B2 (ja) * | 1992-03-11 | 1996-11-06 | ローム株式会社 | レベルスライス回路、フロッピーディスク用読取り回路及び磁気再生装置 |
| US5337264A (en) * | 1992-06-01 | 1994-08-09 | Levien Raphael L | Time reversal gaussian approximation filter |
| US5297129A (en) * | 1992-12-24 | 1994-03-22 | Optical Disc Corporation | Waveform shaping method and apparatus for optical recording |
| KR0152023B1 (ko) * | 1993-06-05 | 1998-10-15 | 김광호 | 재생신호 등화방법 및 그 장치 |
| BE1007528A3 (nl) * | 1993-09-16 | 1995-07-25 | Philips Electronics Nv | Transmissiesysteem met verbeterde egalisator. |
| JPH07110906A (ja) * | 1993-10-08 | 1995-04-25 | Toshiba Corp | 磁気記録再生装置とデータ再生方法 |
-
1996
- 1996-04-04 US US08/628,173 patent/US5774505A/en not_active Expired - Lifetime
-
1997
- 1997-03-19 DE DE69708366T patent/DE69708366T2/de not_active Expired - Fee Related
- 1997-03-19 EP EP97301844A patent/EP0800171B1/en not_active Expired - Lifetime
- 1997-03-28 JP JP07637497A patent/JP3806219B2/ja not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP3806219B2 (ja) | 2006-08-09 |
| EP0800171B1 (en) | 2001-11-21 |
| US5774505A (en) | 1998-06-30 |
| DE69708366D1 (de) | 2002-01-03 |
| JPH1011708A (ja) | 1998-01-16 |
| EP0800171A3 (en) | 1999-03-24 |
| EP0800171A2 (en) | 1997-10-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE69708366T2 (de) | Signalverarbeitungskanal | |
| DE3229761C2 (de) | Schwellwertsteuerungsschaltung zur Decodierung eines partiellen Lesesignals in einem magnetischen Aufzeichnungs- und Wiedergabegerät | |
| DE19904059B4 (de) | Detektorsystem mit Entzerrer und Verfahren zum Entwerfen eines Entzerrers mit mehreren Multiplizierern | |
| US6002717A (en) | Method and apparatus for adaptive equalization using feedback indicative of undercompensation | |
| DE69319864T2 (de) | Magnetaufzeichnungskanal eines nicht idealen gleichstromfreien Entzerrers und einem gleichstromfreien Modulationskode | |
| DE3852395T2 (de) | Adaptiver Entzerrer für Aufzeichnungssysteme unter Verwendung von Partial-Response-Signalisierung. | |
| DE19732019C2 (de) | Hochgeschwindigkeits-Datenempfänger | |
| DE69314356T2 (de) | Adaptive, rauschvorhersagende partial-response entzerrung für kanäle mit spektralen nullstellen | |
| DE68925347T2 (de) | Verfahren zur Signalverarbeitung in einem Kanal | |
| DE69723477T2 (de) | Anordnung und verfahren zur rauschvorhersagenden maximal-wahrscheinlichkeitsdetektion | |
| DE69321427T2 (de) | Empfangsanordnung zum Empfang eines digitalen Signals von einem Übertragungsmedium mit variablen Entzerrungsmitteln | |
| DE69028516T2 (de) | Lese-kanal-detektor zur anwendung in digitalen magnetaufzeichnungssystemen | |
| DE69631959T2 (de) | Schaltung zur vorbehandlung von lesesignalen eines mr-kopfes | |
| DE69709833T2 (de) | Wellenformentzerrer | |
| DE69424908T2 (de) | Signalverarbeitungsapparat | |
| DE19546951B4 (de) | Wiedergabeschaltung für ein optisches Informationsaufzeichnungs- und Informationswiedergabegerät | |
| DE69622489T2 (de) | Zeitbereichfilter für Kommunikationskanal | |
| WO2003019889A2 (de) | Detenrekonstruktion in einem empfänger | |
| DE68920710T2 (de) | Wiedergabe-Anordnung für digitale Signale. | |
| DE4322033B4 (de) | Vorrichtung für die Nachfilterung von Rauschen bei der Entscheidungs-Rückkopplungs-Entzerrung | |
| DE69131675T2 (de) | Verfahren und Schaltungsanordnung zum Umsetzen analoger Wiedergabesignale in digitale Signale | |
| DE3852454T2 (de) | Empfänger, geeignet für die Verbesserung des Geräuschabstands bei der Wiedergabe digitaler Signale. | |
| DE69022763T2 (de) | Aufzeichnungs- und Wiedergabeschaltung für Daten. | |
| DE69025484T2 (de) | Nachbarkanalstörungskompensator mit Minimisierungsmitteln für Nachbarsymbolstörung | |
| DE3830272A1 (de) | Verfahren und vorrichtung zur wellenformentzerrung |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8364 | No opposition during term of opposition | ||
| 8327 | Change in the person/name/address of the patent owner |
Owner name: HEWLETT-PACKARD DEVELOPMENT CO., L.P., HOUSTON, TE |
|
| 8339 | Ceased/non-payment of the annual fee |