JPS5257814A - Video magnetic disk device - Google Patents

Video magnetic disk device

Info

Publication number
JPS5257814A
JPS5257814A JP13447375A JP13447375A JPS5257814A JP S5257814 A JPS5257814 A JP S5257814A JP 13447375 A JP13447375 A JP 13447375A JP 13447375 A JP13447375 A JP 13447375A JP S5257814 A JPS5257814 A JP S5257814A
Authority
JP
Japan
Prior art keywords
head
magnetic disk
disk device
recording
video magnetic
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.)
Pending
Application number
JP13447375A
Other languages
Japanese (ja)
Inventor
Eiji Miyagawa
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co Ltd
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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP13447375A priority Critical patent/JPS5257814A/en
Publication of JPS5257814A publication Critical patent/JPS5257814A/en
Pending 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
    • G11B5/488—Disposition of heads
    • G11B5/4886—Disposition of heads relative to rotating disc

Abstract

PURPOSE:To eliminate an undersired signal generated by rap writing and recording by preceding elimination completion time of a erase head so far as specific time from recording completion time of a recording head, when one of 2 pieces of head is used for record reproducing head and the other is used for an erase head.
JP13447375A 1975-11-07 1975-11-07 Video magnetic disk device Pending JPS5257814A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13447375A JPS5257814A (en) 1975-11-07 1975-11-07 Video magnetic disk device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13447375A JPS5257814A (en) 1975-11-07 1975-11-07 Video magnetic disk device

Publications (1)

Publication Number Publication Date
JPS5257814A true JPS5257814A (en) 1977-05-12

Family

ID=15129131

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13447375A Pending JPS5257814A (en) 1975-11-07 1975-11-07 Video magnetic disk device

Country Status (1)

Country Link
JP (1) JPS5257814A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4422115A (en) * 1980-02-29 1983-12-20 Digital Equipment Corporation Lightweight dual head support assembly for magnetic disk drives
EP0185764A1 (en) * 1984-03-13 1986-07-02 Olympus Optical Co., Ltd. Magnetic recording/reproducing apparatus

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4422115A (en) * 1980-02-29 1983-12-20 Digital Equipment Corporation Lightweight dual head support assembly for magnetic disk drives
EP0185764A1 (en) * 1984-03-13 1986-07-02 Olympus Optical Co., Ltd. Magnetic recording/reproducing apparatus
EP0185764A4 (en) * 1984-03-13 1989-02-06 Olympus Optical Co Magnetic recording/reproducing apparatus.
US4928190A (en) * 1984-03-13 1990-05-22 Olympus Optical Co., Ltd. Magnetic recording/reproduction apparatus
EP0371006A2 (en) * 1984-03-13 1990-05-30 Olympus Optical Co., Ltd. Magnetic recording apparatus
EP0371961A2 (en) * 1984-03-13 1990-06-06 Olympus Optical Co., Ltd. Magnetic recording/reproduction apparatus
EP0374129A2 (en) * 1984-03-13 1990-06-20 Olympus Optical Co., Ltd. Image information recording apparatus
EP0371961A3 (en) * 1984-03-13 1990-11-22 Olympus Optical Co., Ltd. Magnetic recording/reproduction apparatus
US4996610A (en) * 1984-03-13 1991-02-26 Olympus Optical Co., Ltd. Disk-type magnetic recording apparatus with video signal discrimination means

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