JPS5654615A - Magnetic disk device - Google Patents

Magnetic disk device

Info

Publication number
JPS5654615A
JPS5654615A JP13152579A JP13152579A JPS5654615A JP S5654615 A JPS5654615 A JP S5654615A JP 13152579 A JP13152579 A JP 13152579A JP 13152579 A JP13152579 A JP 13152579A JP S5654615 A JPS5654615 A JP S5654615A
Authority
JP
Japan
Prior art keywords
recording
faces
magnetic disk
same
reproduction
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
JP13152579A
Other languages
Japanese (ja)
Inventor
Osamu Isaka
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.)
Ricoh Co Ltd
Original Assignee
Ricoh 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP13152579A priority Critical patent/JPS5654615A/en
Publication of JPS5654615A publication Critical patent/JPS5654615A/en
Pending legal-status Critical Current

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  • Signal Processing For Digital Recording And Reproducing (AREA)

Abstract

PURPOSE: To increase the transfer velocity and thus to realize a high-speed recording/reproducing process, by forming the same sector over several faces such as both the faces of a magnetic disk and then carrying out the recording and reproduction.
CONSTITUTION: Both the odd and even order numbers of the clock pulses are allotted through the latch circuit 15 in the distributing circuit 18, and a control is given to the switching regions of the AND gates 9 and 10 plus 19 and 20. Then the recording is carried out for several same sectors such as two pairs and the like which are formed over both faces of the magnetic disk 1 by the magnetic heads 2 and 3 opposing to each other centering on the disk 1 via the proper recording/reproducing circuits 4 and 5. In the same way, the reproduction is carried out in allotment to be then compounded. In such constitution, the transfer velocity of the information can be increased double in comparison with the case in which several same disks are not formed, thus realizing a high-speed recording/reproducing process for the information.
COPYRIGHT: (C)1981,JPO&Japio
JP13152579A 1979-10-12 1979-10-12 Magnetic disk device Pending JPS5654615A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13152579A JPS5654615A (en) 1979-10-12 1979-10-12 Magnetic disk device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13152579A JPS5654615A (en) 1979-10-12 1979-10-12 Magnetic disk device

Publications (1)

Publication Number Publication Date
JPS5654615A true JPS5654615A (en) 1981-05-14

Family

ID=15060092

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13152579A Pending JPS5654615A (en) 1979-10-12 1979-10-12 Magnetic disk device

Country Status (1)

Country Link
JP (1) JPS5654615A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2574211A1 (en) * 1984-12-05 1986-06-06 Philips Nv METHOD FOR ADDRESSING INFORMATION STORED IN A STORAGE DEVICE AND STORAGE DEVICE FOR EXECUTING THE PROCESS
JPS6220139A (en) * 1985-07-19 1987-01-28 Hitachi Ltd Optical disk device
JPH04212731A (en) * 1990-03-23 1992-08-04 Matsushita Electric Ind Co Ltd Optical head and optical disk

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2574211A1 (en) * 1984-12-05 1986-06-06 Philips Nv METHOD FOR ADDRESSING INFORMATION STORED IN A STORAGE DEVICE AND STORAGE DEVICE FOR EXECUTING THE PROCESS
JPS6220139A (en) * 1985-07-19 1987-01-28 Hitachi Ltd Optical disk device
JPH04212731A (en) * 1990-03-23 1992-08-04 Matsushita Electric Ind Co Ltd Optical head and optical disk

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