DE69525725D1 - Kodemodulations-, Kodedemodulations- und Kodedetektionsverfahren - Google Patents
Kodemodulations-, Kodedemodulations- und KodedetektionsverfahrenInfo
- Publication number
- DE69525725D1 DE69525725D1 DE69525725T DE69525725T DE69525725D1 DE 69525725 D1 DE69525725 D1 DE 69525725D1 DE 69525725 T DE69525725 T DE 69525725T DE 69525725 T DE69525725 T DE 69525725T DE 69525725 D1 DE69525725 D1 DE 69525725D1
- Authority
- DE
- Germany
- Prior art keywords
- code
- demodulation
- detection methods
- modulation
- code modulation
- 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
- 238000001514 detection method Methods 0.000 title 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
- G11B20/10055—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
-
- 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
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M5/00—Conversion of the form of the representation of individual digits
- H03M5/02—Conversion to or from representation by pulses
- H03M5/04—Conversion to or from representation by pulses the pulses having two levels
- H03M5/14—Code representation, e.g. transition, for a given bit cell depending on the information in one or more adjacent bit cells, e.g. delay modulation code, double density code
- H03M5/145—Conversion to or from block codes or representations thereof
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- Algebra (AREA)
- Pure & Applied Mathematics (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
- Communication Control (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP32694794A JP3509083B2 (ja) | 1994-12-28 | 1994-12-28 | 符号変調方法、符号復調方法、および符号復号方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE69525725D1 true DE69525725D1 (de) | 2002-04-11 |
Family
ID=18193556
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69525725T Expired - Lifetime DE69525725D1 (de) | 1994-12-28 | 1995-12-28 | Kodemodulations-, Kodedemodulations- und Kodedetektionsverfahren |
Country Status (5)
Country | Link |
---|---|
US (1) | US5638063A (de) |
EP (1) | EP0720302B1 (de) |
JP (1) | JP3509083B2 (de) |
KR (1) | KR960025617A (de) |
DE (1) | DE69525725D1 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6177892B1 (en) | 1998-12-31 | 2001-01-23 | Oak Technology, Inc. | EFM/DVD demodulator |
US6732320B1 (en) * | 2000-04-28 | 2004-05-04 | Promos Technologies Inc. | Method and system for improved error correction in optical media data processing |
US20020110200A1 (en) * | 2000-12-19 | 2002-08-15 | Intel Corporation | Method for quadrature phase decoding allowing for skipped states |
DE10134472B4 (de) * | 2001-07-16 | 2005-12-15 | Infineon Technologies Ag | Sende- und Empfangsschnittstelle und Verfahren zur Datenübertragung |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4567464A (en) * | 1983-01-28 | 1986-01-28 | International Business Machines Corporation | Fixed rate constrained channel code generating and recovery method and means having spectral nulls for pilot signal insertion |
US4888779A (en) * | 1988-03-18 | 1989-12-19 | International Business Machines Corporation | Matched spectral null trellis codes for partial response channels |
JPH063943B2 (ja) * | 1989-11-13 | 1994-01-12 | インターナショナル・ビジネス・マシーンズ・コーポレーション | 2進データ列の符号化方法 |
US5280489A (en) * | 1992-04-15 | 1994-01-18 | International Business Machines Corporation | Time-varying Viterbi detector for control of error event length |
JP3528929B2 (ja) * | 1993-09-22 | 2004-05-24 | ソニー株式会社 | 磁気記録装置 |
-
1994
- 1994-12-28 JP JP32694794A patent/JP3509083B2/ja not_active Expired - Fee Related
-
1995
- 1995-12-27 US US08/579,002 patent/US5638063A/en not_active Expired - Fee Related
- 1995-12-28 DE DE69525725T patent/DE69525725D1/de not_active Expired - Lifetime
- 1995-12-28 EP EP19950120698 patent/EP0720302B1/de not_active Expired - Lifetime
- 1995-12-28 KR KR1019950072167A patent/KR960025617A/ko not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
EP0720302B1 (de) | 2002-03-06 |
JP3509083B2 (ja) | 2004-03-22 |
EP0720302A3 (de) | 1999-03-17 |
KR960025617A (ko) | 1996-07-20 |
US5638063A (en) | 1997-06-10 |
EP0720302A2 (de) | 1996-07-03 |
JPH08180606A (ja) | 1996-07-12 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8332 | No legal effect for de |