SE447767B - Sett och anordning for magnetisk registrering av en digital datasignal - Google Patents
Sett och anordning for magnetisk registrering av en digital datasignalInfo
- Publication number
- SE447767B SE447767B SE8004696A SE8004696A SE447767B SE 447767 B SE447767 B SE 447767B SE 8004696 A SE8004696 A SE 8004696A SE 8004696 A SE8004696 A SE 8004696A SE 447767 B SE447767 B SE 447767B
- Authority
- SE
- Sweden
- Prior art keywords
- signal
- magnetization
- phase
- transitions
- data signal
- Prior art date
Links
- 230000005415 magnetization Effects 0.000 claims description 79
- 230000007704 transition Effects 0.000 claims description 78
- 238000000034 method Methods 0.000 claims description 8
- 230000002349 favourable effect Effects 0.000 description 9
- 238000004804 winding Methods 0.000 description 7
- 238000006073 displacement reaction Methods 0.000 description 5
- 239000000696 magnetic material Substances 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000001629 suppression Effects 0.000 description 2
- 241000442132 Lactarius lactarius Species 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
- 230000010363 phase shift Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/02—Recording, reproducing, or erasing methods; Read, write or erase circuits therefor
- G11B5/027—Analogue recording
- G11B5/03—Biasing
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Digital Magnetic Recording (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7917172A FR2460522A1 (fr) | 1979-07-02 | 1979-07-02 | Procede et dispositif d'enregistrement magnetique numerique avec polarisation a haute frequence |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| SE8004696L SE8004696L (sv) | 1981-01-03 |
| SE447767B true SE447767B (sv) | 1986-12-08 |
Family
ID=9227405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE8004696A SE447767B (sv) | 1979-07-02 | 1980-06-25 | Sett och anordning for magnetisk registrering av en digital datasignal |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US4383281A (enExample) |
| JP (1) | JPS5611610A (enExample) |
| DE (1) | DE3025045A1 (enExample) |
| FR (1) | FR2460522A1 (enExample) |
| GB (1) | GB2055238B (enExample) |
| IT (1) | IT1131891B (enExample) |
| NL (1) | NL8003646A (enExample) |
| SE (1) | SE447767B (enExample) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4420776A (en) * | 1981-11-30 | 1983-12-13 | International Business Machines | PSK Modulation in AC bias data recording |
| JPS601956A (ja) * | 1983-06-17 | 1985-01-08 | Sony Corp | デイジタルデ−タの変調方法 |
| DE3533447A1 (de) * | 1985-09-19 | 1987-03-26 | Tandberg Data | Verfahren und anordnung zum aufzeichnen von daten auf einem magnetischen aufzeichnungstraeger |
| DE3533454A1 (de) * | 1985-09-19 | 1987-03-26 | Tandberg Data | Verfahren und anordnung zur aufzeichnung und wiedergabe von daten |
| DE3633269A1 (de) * | 1986-09-30 | 1988-03-31 | Tandberg Data | Verfahren und anordnung zum aufzeichnen von digitalen daten auf einen magnetischen aufzeichnungstraeger |
| US4845573A (en) * | 1986-10-06 | 1989-07-04 | Tandberg Data A/S | System with filter system for improved reliability for recording data on a magnetic recording medium |
| DE3827370A1 (de) * | 1988-08-12 | 1990-02-15 | Broadcast Television Syst | Schaltungsanordnung zur aufzeichnung von digitalen signalen |
| US5083349A (en) * | 1991-03-08 | 1992-01-28 | Talon, Inc. | Slide fastener slider |
| US6650493B2 (en) * | 2000-03-31 | 2003-11-18 | Seagate Technology Llc | Pulsed write current adapted for use with a field maintenance current in a data storage device |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3215779A (en) * | 1961-02-24 | 1965-11-02 | Hallicrafters Co | Digital data conversion and transmission system |
| US3641524A (en) * | 1966-11-07 | 1972-02-08 | Leach Corp | Magnetic record and reproduce system for digital data having a nrzc format |
| US3551816A (en) * | 1969-03-10 | 1970-12-29 | T O Paine | Digital synchronizer |
| GB1333951A (en) | 1971-03-08 | 1973-10-17 | Standard Telephones Cables Ltd | Electrical supervisory system |
| US3792454A (en) * | 1972-01-03 | 1974-02-12 | Honeywell Inf Systems | Magnetic strorage system using alternate codes to reduce write current bias |
| US3789380A (en) * | 1972-02-18 | 1974-01-29 | Ibm | Digital recording at twice nyquist bandwidth |
| US3980824A (en) * | 1974-10-29 | 1976-09-14 | Motorola, Inc. | Modulator demodulator for binary digitally encoded messages |
| US3952329A (en) * | 1975-02-06 | 1976-04-20 | International Business Machines Corporation | Pulse compression recording |
| US4017903A (en) * | 1975-08-27 | 1977-04-12 | Hewlett-Packard Company | Pulse code modulation recording and/or reproducing system |
| JPS5836403B2 (ja) * | 1976-04-19 | 1983-08-09 | 日本電信電話株式会社 | デジタル信号の磁気記録法 |
| US4202017A (en) * | 1978-05-08 | 1980-05-06 | Sperry Rand Corporation | Magnetic recording signal equalization apparatus |
| US4234897A (en) * | 1978-10-05 | 1980-11-18 | Ampex Corporation | DC Free encoding for data transmission |
| FR2459529A1 (fr) * | 1979-06-18 | 1981-01-09 | Cii Honeywell Bull | Procede et dispositif d'enregistrement magnetique numerique avec polarisation a haute frequence |
-
1979
- 1979-07-02 FR FR7917172A patent/FR2460522A1/fr active Granted
-
1980
- 1980-06-24 US US06/162,421 patent/US4383281A/en not_active Expired - Lifetime
- 1980-06-24 NL NL8003646A patent/NL8003646A/nl not_active Application Discontinuation
- 1980-06-25 SE SE8004696A patent/SE447767B/sv not_active IP Right Cessation
- 1980-06-27 GB GB8021094A patent/GB2055238B/en not_active Expired
- 1980-07-02 IT IT23200/80A patent/IT1131891B/it active
- 1980-07-02 DE DE19803025045 patent/DE3025045A1/de active Granted
- 1980-07-02 JP JP8928880A patent/JPS5611610A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| FR2460522A1 (fr) | 1981-01-23 |
| DE3025045C2 (enExample) | 1990-05-31 |
| JPS5611610A (en) | 1981-02-05 |
| SE8004696L (sv) | 1981-01-03 |
| GB2055238A (en) | 1981-02-25 |
| DE3025045A1 (de) | 1981-01-15 |
| IT8023200A0 (it) | 1980-07-02 |
| NL8003646A (nl) | 1981-01-06 |
| FR2460522B1 (enExample) | 1983-07-22 |
| US4383281A (en) | 1983-05-10 |
| GB2055238B (en) | 1983-07-20 |
| IT1131891B (it) | 1986-06-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5986830A (en) | Read/write channel write precompensation system and method using one or more delay clocks | |
| CA1291561C (en) | Asymmetric rll coding | |
| US4937802A (en) | Magnetic head drive circuit | |
| SE447767B (sv) | Sett och anordning for magnetisk registrering av en digital datasignal | |
| JPS606900Y2 (ja) | 磁気データ記録装置 | |
| SE445400B (sv) | Sett och anordning for magnetisk registrering av en digital datasignal | |
| JPS5975705A (ja) | 電圧制御発振器回路 | |
| JP3224418B2 (ja) | 記録データ列２次変調方法 | |
| EP0464090A1 (en) | Method for modulating binary data | |
| US3603942A (en) | Predifferentiated recording | |
| US4544961A (en) | Triplex digital magnetic recording and reproducing system | |
| EP0480509B1 (en) | Arrangement for supplying energy to a load, as well as a drive system and a sound reproduction system comprising such an arrangement | |
| US6760171B2 (en) | Magnetic medium precompensation method and apparatus | |
| CN100414632C (zh) | 提供普适写入预补偿的方法及设备 | |
| US4547818A (en) | Circuit arrangement for the recording of data on a magnetic recording carrier | |
| US4870513A (en) | Method and arrangement for the recording and playback of data | |
| US4761695A (en) | Method and arrangement for recording data on a magnetic recording medium | |
| JP2578754B2 (ja) | デイジタルデ−タ記録方法 | |
| SU902056A1 (ru) | Способ магнитной записи цифровой информации и устройство дл его осуществлени | |
| JPH06176430A (ja) | 光磁気記録再生装置 | |
| KR20040082397A (ko) | 증가된 타이밍 해상도를 갖는 타이밍 신호를 발생하는수단을 포함하는 광 기록매체 기록장치 및 기록방법 | |
| SU1001167A1 (ru) | Способ записи цифровой информации на подвижный магнитный носитель | |
| SU1545259A1 (ru) | Устройство записи сигналов времени на магнитный носитель | |
| JPS61182609A (ja) | 書き込み回路 | |
| EP1530211A1 (en) | High-density magneto-optical recording/reproducing apparatus and high-density magneto-optical recording/reproducing method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| NUG | Patent has lapsed |
Ref document number: 8004696-4 Effective date: 19910131 Format of ref document f/p: F |