Disk storage control device including a sector number register a

Details Disk storage control device including a sector number register a Disk storage control device including a sector number register a

1991-11-12

1995-01-03

Gossage, Glenn

Boots, shoes, and leggings

395275, 364DIG1, 360 48, G06F 1206, G06F 1300

Patent

active

053793978

ABSTRACT:
An external memory control device which is capable of reducing the time required for processings such as write and read of data for the storage areas of an external memory device, such as a disk, is disclosed. The external memory control device includes a smallest sector number register and a largest sector number register which store the smallest and the largest sector numbers, respectively, within a processing range on a track that is designated by a processing request signal frokm a central processing unit, and a processing range detecting part which detects whether a sector number read from the designated track is within the processing range. In this external memory control device, if the sector number read from the designated track is within the processing range, the processings start from the next sector, so that waiting until the arrival of the smallest sector number is no longer needed, and the time required for processing per track can be reduced.

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patent: 4839878 (1989-06-01), Inoue
patent: 4918651 (1990-04-01), Bonke et al.
patent: 5068755 (1991-11-01), Hamilton et al.

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