JPS57143770A - Cylinder address converter for disc type magnetic storage device - Google Patents

Cylinder address converter for disc type magnetic storage device

Info

Publication number
JPS57143770A
JPS57143770A JP2700281A JP2700281A JPS57143770A JP S57143770 A JPS57143770 A JP S57143770A JP 2700281 A JP2700281 A JP 2700281A JP 2700281 A JP2700281 A JP 2700281A JP S57143770 A JPS57143770 A JP S57143770A
Authority
JP
Japan
Prior art keywords
cylinder
address
register
cylinder address
drive device
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
JP2700281A
Other languages
Japanese (ja)
Inventor
Keiji Kitazawa
Hiroshi Kuwabara
Kunihiko Onuma
Kunio Nakamura
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP2700281A priority Critical patent/JPS57143770A/en
Publication of JPS57143770A publication Critical patent/JPS57143770A/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
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/102—Programmed access in sequence to addressed parts of tracks of operating record carriers
    • G11B27/105—Programmed access in sequence to addressed parts of tracks of operating record carriers of operating discs

Landscapes

  • Indexing, Searching, Synchronizing, And The Amount Of Synchronization Travel Of Record Carriers (AREA)

Abstract

PURPOSE:To decrease wear in a drive section, by providing a device that a consecutive cylinder address designated with a processor is converted into a discontinuous cylinder address to a series of cylinders on a magnetic disc of a disc drive device. CONSTITUTION:Address information transmitted from a processor enters a control device, and a selector address of addresses of the information is delivered to a magnetic disc drive device 3 via a register 11. In this case, a cylinder address converting section 17 is provided between the register 11 and a register 12. The amount of movement of a head positioning mechanism of the disc drive device 3 is increased by repeating the access operation to the cylinder to be closed addressingly, allowing to reduce a small shaking movement of bearings of the head positioning mechanism so that fretting wear of bearings can hardly take plate.
JP2700281A 1981-02-27 1981-02-27 Cylinder address converter for disc type magnetic storage device Pending JPS57143770A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2700281A JPS57143770A (en) 1981-02-27 1981-02-27 Cylinder address converter for disc type magnetic storage device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2700281A JPS57143770A (en) 1981-02-27 1981-02-27 Cylinder address converter for disc type magnetic storage device

Publications (1)

Publication Number Publication Date
JPS57143770A true JPS57143770A (en) 1982-09-06

Family

ID=12208918

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2700281A Pending JPS57143770A (en) 1981-02-27 1981-02-27 Cylinder address converter for disc type magnetic storage device

Country Status (1)

Country Link
JP (1) JPS57143770A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0492775A2 (en) * 1990-12-25 1992-07-01 Fujitsu Limited Method and Apparatus for positioning head on target cylinder of disk

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0492775A2 (en) * 1990-12-25 1992-07-01 Fujitsu Limited Method and Apparatus for positioning head on target cylinder of disk
US5311379A (en) * 1990-12-25 1994-05-10 Fujitsu Limited Method and system for positioning head on target cylinder of disk

Similar Documents

Publication Publication Date Title
MY104105A (en) Scroll machine with anti-rotation mechanism
DE59700492D1 (en) Drive for a printing press
JPS57143770A (en) Cylinder address converter for disc type magnetic storage device
IT8567460A1 (en) Vessel with pressure control device, particularly for the storage and transfer of irradiated nuclear combustible materials.
JPS5398741A (en) High level recording and processing system
ES8608745A1 (en) A generator for vehicles
JPS53112633A (en) Information processor and its system
JPS5218569A (en) Hydraulic cylinder for trnsmission control
JPS6024500U (en) Press load control device
JPS58174243U (en) Remaining rice discharge device in rotary sorting rice huller
JPS5692663A (en) Control device for floppy disc
JPS56105988A (en) Printing machine
JPS52114101A (en) Automatic oil exchanger
JPS53119435A (en) Wick controller for oil stoves
JPS538414A (en) Seal structure in valve guide section for valve moving mechanism
JPS5387630A (en) Information processing unit
GB1414766A (en) Tachograph incorporating a drive for a recording member
JPS53104056A (en) Bearing
JPS5412234A (en) Control system for buffer registor
JPS53139945A (en) Information processing method and its unit
JPS60122579U (en) hydraulic power mechanism
JPS53104007A (en) Turning device for turbine rotor
JPS60191800U (en) Gas cylinder setting mechanism on a simple stove
Barfod Production Switchover in Danish Iron and Metal Industry
Gnauck et al. On the water quality management of a river basin with aid of combined models of water quantity and water quality.