FR2020789A1 - - Google Patents

Info

Publication number
FR2020789A1
FR2020789A1 FR6930692A FR6930692A FR2020789A1 FR 2020789 A1 FR2020789 A1 FR 2020789A1 FR 6930692 A FR6930692 A FR 6930692A FR 6930692 A FR6930692 A FR 6930692A FR 2020789 A1 FR2020789 A1 FR 2020789A1
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.)
Withdrawn
Application number
FR6930692A
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.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
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 International Business Machines Corp filed Critical International Business Machines Corp
Publication of FR2020789A1 publication Critical patent/FR2020789A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
    • G11B23/0007—Circuits or methods for reducing noise, for correction of distortion, or for changing density of recorded information
    • 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
    • G11B5/265—Structure or manufacture of a head with more than one gap for erasing, recording or reproducing on the same track
    • 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
    • G11B5/265—Structure or manufacture of a head with more than one gap for erasing, recording or reproducing on the same track
    • G11B5/2651—Manufacture

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetic Heads (AREA)
  • Recording Or Reproducing By Magnetic Means (AREA)
FR6930692A 1968-10-16 1969-09-02 Withdrawn FR2020789A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US76808468A 1968-10-16 1968-10-16

Publications (1)

Publication Number Publication Date
FR2020789A1 true FR2020789A1 (fr) 1970-07-17

Family

ID=25081475

Family Applications (1)

Application Number Title Priority Date Filing Date
FR6930692A Withdrawn FR2020789A1 (fr) 1968-10-16 1969-09-02

Country Status (9)

Country Link
US (1) US3582571A (fr)
AT (1) AT290875B (fr)
BE (1) BE738807A (fr)
BR (1) BR6913329D0 (fr)
CH (1) CH494445A (fr)
DE (2) DE1952070A1 (fr)
ES (1) ES372541A1 (fr)
FR (1) FR2020789A1 (fr)
ZA (1) ZA696792B (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3882544A (en) * 1973-12-14 1975-05-06 Xerox Corp Combined wide-erase and read-write magnetic head
JPS5577025A (en) * 1978-12-01 1980-06-10 Tdk Corp Erasing head
KR920001156B1 (ko) * 1988-07-13 1992-02-06 삼성전자 주식회사 컴퓨터용 자기헤드
DE3842079A1 (de) * 1988-12-14 1990-06-21 Broadcast Television Syst Verfahren zum aufzeichnen von signalen und magnetkopfanordnung hierfuer
JPH03222110A (ja) * 1990-01-26 1991-10-01 Nec Corp 磁気ヘッド
US7295694B2 (en) 2002-02-22 2007-11-13 International Business Machines Corporation MICR-based optical character recognition system and method
DE102005014101A1 (de) 2004-06-08 2005-12-29 Continental Teves Ag & Co. Ohg Elektrisch ansteuerbares Ventil
US7532437B2 (en) * 2006-01-19 2009-05-12 Seagate Technology Llc Slider having transducers orientated in different directions

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2633504A (en) * 1948-01-08 1953-03-31 Gasaccumulator Svenska Ab Combined record-erase head for magnetic recorders
US2653189A (en) * 1948-02-12 1953-09-22 Armour Res Found Electromagnetic transducer head
US2736776A (en) * 1951-06-02 1956-02-28 Armour Res Found Magnetic recorder head assembly
US2803708A (en) * 1951-09-26 1957-08-20 Armour Res Found Electromagnetic transducer head

Also Published As

Publication number Publication date
ZA696792B (en) 1971-05-27
US3582571A (en) 1971-06-01
DE1952070A1 (de) 1970-04-23
AT290875B (de) 1971-06-25
BE738807A (fr) 1970-02-16
ES372541A1 (es) 1971-10-16
DE6940188U (de) 1973-08-23
BR6913329D0 (pt) 1973-01-25
CH494445A (de) 1970-07-31

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Legal Events

Date Code Title Description
ST Notification of lapse