FR2460522B1 - - Google Patents

Info

Publication number
FR2460522B1
FR2460522B1 FR7917172A FR7917172A FR2460522B1 FR 2460522 B1 FR2460522 B1 FR 2460522B1 FR 7917172 A FR7917172 A FR 7917172A FR 7917172 A FR7917172 A FR 7917172A FR 2460522 B1 FR2460522 B1 FR 2460522B1
Authority
FR
France
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
Application number
FR7917172A
Other languages
French (fr)
Other versions
FR2460522A1 (fr
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CII HONEYWELL BULL
Original Assignee
CII HONEYWELL BULL
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by CII HONEYWELL BULL filed Critical CII HONEYWELL BULL
Priority to FR7917172A priority Critical patent/FR2460522A1/fr
Priority to US06/162,421 priority patent/US4383281A/en
Priority to NL8003646A priority patent/NL8003646A/nl
Priority to SE8004696A priority patent/SE447767B/sv
Priority to GB8021094A priority patent/GB2055238B/en
Priority to DE19803025045 priority patent/DE3025045A1/de
Priority to JP8928880A priority patent/JPS5611610A/ja
Priority to IT23200/80A priority patent/IT1131891B/it
Publication of FR2460522A1 publication Critical patent/FR2460522A1/fr
Application granted granted Critical
Publication of FR2460522B1 publication Critical patent/FR2460522B1/fr
Granted legal-status Critical Current

Links

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)
FR7917172A 1979-07-02 1979-07-02 Procede et dispositif d'enregistrement magnetique numerique avec polarisation a haute frequence Granted FR2460522A1 (fr)

Priority Applications (8)

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
US06/162,421 US4383281A (en) 1979-07-02 1980-06-24 Method and arrangement for magnetic digital recording with high frequency biasing with suppression of DC components in the recording signals
NL8003646A NL8003646A (nl) 1979-07-02 1980-06-24 Werkwijze en digitale magnetische registratie- -inrichting met hoogfrequente polarisatie.
SE8004696A SE447767B (sv) 1979-07-02 1980-06-25 Sett och anordning for magnetisk registrering av en digital datasignal
GB8021094A GB2055238B (en) 1979-07-02 1980-06-27 Method and arrangement for magnetic digital recording with high frequency biasing
DE19803025045 DE3025045A1 (de) 1979-07-02 1980-07-02 Verfahren und vorrichtung zur magnetischen digitalen aufzeichnung mit hochfrequenzpolarisierung
JP8928880A JPS5611610A (en) 1979-07-02 1980-07-02 Magnetic recording method of and apparatus for digital data signal
IT23200/80A IT1131891B (it) 1979-07-02 1980-07-02 Procedimento e dispositivo di registrazione magnetica numerica con polarizzazione ad alta frequenza

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
FR2460522A1 FR2460522A1 (fr) 1981-01-23
FR2460522B1 true FR2460522B1 (enExample) 1983-07-22

Family

ID=9227405

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7917172A Granted FR2460522A1 (fr) 1979-07-02 1979-07-02 Procede et dispositif d'enregistrement magnetique numerique avec polarisation a haute frequence

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

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
US4383281A (en) 1983-05-10
GB2055238B (en) 1983-07-20
IT1131891B (it) 1986-06-25
SE447767B (sv) 1986-12-08

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Legal Events

Date Code Title Description
ST Notification of lapse