Dynamic magnetic information storage or retrieval – General processing of a digital signal – Address coding
Patent
1986-10-02
1989-01-10
Faber, Alan
Dynamic magnetic information storage or retrieval
General processing of a digital signal
Address coding
360 48, G11B 509
Patent
active
047977558
ABSTRACT:
A system for data transfer includes a plurality of disks each having surfaces divided into sectors in which data may be stored; drive mechanisms for rotating the disks; a plurality of data transfer heads, one transfer head associated with each disk surface; sector determining circuitry for determining the current sector of each disk surface relative the associated head; and control circuitry responsive to the sector determining circuitry, for initiating transfer of data between the head and the associated disk surface whenever the head for that surface is at the beginning of any sector involved in the data transfer. The system further includes a memory; and a data bus coupled to the memory; a buffer coupled between each of the heads and the data bus. The control circuitry is able to determine correspondence between a location in the memory and a sector of the disk surfaces for data involved in the transfer, so as to permit individual transfer of data between a head and associated disk surfaces for each sector involved in the transfer in an order that is independent of the order of the data in the memory. A related method is also disclosed.
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Baldwin David R.
Sata Shingo
Faber Alan
Kabushiki Kaisha Toshiba
Sachar Surinder
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