FR2238205A1 - - Google Patents

Info

Publication number
FR2238205A1
FR2238205A1 FR7326163A FR7326163A FR2238205A1 FR 2238205 A1 FR2238205 A1 FR 2238205A1 FR 7326163 A FR7326163 A FR 7326163A FR 7326163 A FR7326163 A FR 7326163A FR 2238205 A1 FR2238205 A1 FR 2238205A1
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.)
Granted
Application number
FR7326163A
Other languages
French (fr)
Other versions
FR2238205B1 (en
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.)
G E M SA
Original Assignee
G E M SA
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 G E M SA filed Critical G E M SA
Priority to FR7326163A priority Critical patent/FR2238205B1/fr
Priority to FR7403675A priority patent/FR2260160A2/en
Priority to DE19742433420 priority patent/DE2433420A1/en
Priority to GB3134574A priority patent/GB1462914A/en
Publication of FR2238205A1 publication Critical patent/FR2238205A1/fr
Application granted granted Critical
Publication of FR2238205B1 publication Critical patent/FR2238205B1/fr
Expired 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
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/58—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B5/596—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following on disks
    • G11B5/59633—Servo formatting
    • 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
    • G11B5/012—Recording on, or reproducing or erasing from, magnetic disks
    • 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
    • G11B5/127—Structure or manufacture of heads, e.g. inductive
FR7326163A 1973-07-17 1973-07-17 Expired FR2238205B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FR7326163A FR2238205B1 (en) 1973-07-17 1973-07-17
FR7403675A FR2260160A2 (en) 1973-07-17 1974-02-04 Magnetic disc recording system - uses disc surface divided into data and position tracks
DE19742433420 DE2433420A1 (en) 1973-07-17 1974-07-11 METHOD OF RECORDING INFORMATION ON A MAGNETIC DISC AND DEVICE FOR READING AND RECORDING INFORMATION ON TRACKS OF A MAGNETIC DISC
GB3134574A GB1462914A (en) 1973-07-17 1974-07-16 Method for writing information on a magnetic disc and device for reading or writing information on the tracks of a magnetic disc

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7326163A FR2238205B1 (en) 1973-07-17 1973-07-17

Publications (2)

Publication Number Publication Date
FR2238205A1 true FR2238205A1 (en) 1975-02-14
FR2238205B1 FR2238205B1 (en) 1978-03-17

Family

ID=9122711

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7326163A Expired FR2238205B1 (en) 1973-07-17 1973-07-17

Country Status (3)

Country Link
DE (1) DE2433420A1 (en)
FR (1) FR2238205B1 (en)
GB (1) GB1462914A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2462747A1 (en) * 1979-07-30 1981-02-13 Atlantic Richfield Co INFORMATION MEDIUM HAVING IDENTIFICATION CODE INFORMATION BETWEEN TRACKS
WO1999024971A2 (en) * 1997-11-12 1999-05-20 Matsushita Electric Industrial Co., Ltd. Magnetic recording/reproduction device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2462747A1 (en) * 1979-07-30 1981-02-13 Atlantic Richfield Co INFORMATION MEDIUM HAVING IDENTIFICATION CODE INFORMATION BETWEEN TRACKS
WO1999024971A2 (en) * 1997-11-12 1999-05-20 Matsushita Electric Industrial Co., Ltd. Magnetic recording/reproduction device
WO1999024971A3 (en) * 1997-11-12 1999-10-07 Matsushita Electric Ind Co Ltd Magnetic recording/reproduction device
US6529341B1 (en) 1997-11-12 2003-03-04 Matsushita Electric Industrial Co., Ltd. Magnetic recording/reproduction device using preformat information

Also Published As

Publication number Publication date
GB1462914A (en) 1977-01-26
FR2238205B1 (en) 1978-03-17
DE2433420A1 (en) 1975-02-20

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Legal Events

Date Code Title Description
ST Notification of lapse