Electrical computers and digital processing systems: memory – Storage accessing and control – Specific memory composition
Patent
1997-02-19
2000-09-05
Cabeca, John W.
Electrical computers and digital processing systems: memory
Storage accessing and control
Specific memory composition
711112, 711114, 711167, 348 7, G06F 1200
Patent
active
061157864
ABSTRACT:
A disk memory controlling system and a method for controlling disk memory devices for use in a Video On Demand system is provided so that delay caused in time intervals of reading when a single buffer is employed may be avoided, and the number of users who can be served program data may not decrease. The disk memory controlling system may include a plurality of disk memory devices, each of which is assigned a time slot to store separately divided data of a program; a buffer memory for storing data read out from the plurality of disk memory devices; and a controller for counting an estimated period equivalent to a period during which a transmission bus connected to the disk memory devices to be occupied for reading out data for the "i"th time slot, when the "i"th time slot is assigned to no user, while the "i+1"th time slot is assigned to a user; and controlling to read out from the disk memory devices, data for the "i+1"th time slot, after the estimated period has passed.
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Bataille Pierre-Michel
Cabeca John W.
Fujitsu Limited
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