JPS5538621A - Magnetic disc unit - Google Patents

Magnetic disc unit

Info

Publication number
JPS5538621A
JPS5538621A JP10930578A JP10930578A JPS5538621A JP S5538621 A JPS5538621 A JP S5538621A JP 10930578 A JP10930578 A JP 10930578A JP 10930578 A JP10930578 A JP 10930578A JP S5538621 A JPS5538621 A JP S5538621A
Authority
JP
Japan
Prior art keywords
head
track
circuit
register
held
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.)
Granted
Application number
JP10930578A
Other languages
Japanese (ja)
Other versions
JPS6043579B2 (en
Inventor
Masao Fujiki
Osamu Ishii
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP10930578A priority Critical patent/JPS6043579B2/en
Publication of JPS5538621A publication Critical patent/JPS5538621A/en
Publication of JPS6043579B2 publication Critical patent/JPS6043579B2/en
Expired legal-status Critical Current

Links

Abstract

PURPOSE: To eliminate burdens upon a control system and software by equalizing a cartridge disc side and fixed disc side in terms of the number of tracks by viewing from the control system.
CONSTITUTION: At a cartridge side, externally-assigned track and head addresses are held by registers 21 and 22 and supplied to arm 11 to select head 5 and 6. At a fixed disc side, on the other hand, a track address, held by register 23, is transferred to converter circuit 25, where a virtual track address is converted into a physical track address and supplied to positioning arm 12. Further, a head address, held by register 24, is transferred to head selector circuit 26. Addresses from circuit 25 and register 24 are decoded by circuit 26 to select fixed heads from heads 7W10. Here, when one head at the cartridge side is considered to have the N-number tracks and that at the fixed-disc side to have a 1/N head, the maximun track munbers and maximum head number assigned externally are N at the track side and two at the head side respectively.
COPYRIGHT: (C)1980,JPO&Japio
JP10930578A 1978-09-06 1978-09-06 magnetic disk device Expired JPS6043579B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10930578A JPS6043579B2 (en) 1978-09-06 1978-09-06 magnetic disk device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10930578A JPS6043579B2 (en) 1978-09-06 1978-09-06 magnetic disk device

Publications (2)

Publication Number Publication Date
JPS5538621A true JPS5538621A (en) 1980-03-18
JPS6043579B2 JPS6043579B2 (en) 1985-09-28

Family

ID=14506818

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10930578A Expired JPS6043579B2 (en) 1978-09-06 1978-09-06 magnetic disk device

Country Status (1)

Country Link
JP (1) JPS6043579B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6057427A (en) * 1983-09-09 1985-04-03 Toshiba Corp Control circuit of information recording and reproducing device
US4563715A (en) * 1982-01-22 1986-01-07 Canon Denshi Kabushiki Kaisha Head position control device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4563715A (en) * 1982-01-22 1986-01-07 Canon Denshi Kabushiki Kaisha Head position control device
JPS6057427A (en) * 1983-09-09 1985-04-03 Toshiba Corp Control circuit of information recording and reproducing device

Also Published As

Publication number Publication date
JPS6043579B2 (en) 1985-09-28

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