Electrical computers and digital processing systems: memory – Storage accessing and control – Specific memory composition
Patent
1998-01-22
2000-06-20
Robertson, David L.
Electrical computers and digital processing systems: memory
Storage accessing and control
Specific memory composition
711154, G06F 1314
Patent
active
060789883
ABSTRACT:
Data read out from a disk storage device by a read thread is stored into a ring buffer on a predetermined unit basis. This process is independently controlled every element. The data is read out from the buffer by an output thread in accordance with a predetermined order and is outputted as a stream. Each element includes the disk storage device, the read thread, and the ring buffer, and is periodically checked by the thread and a flag is set to an element in which a using ratio of the buffer is equal to or less than a predetermined value. When the flag has been set to the other elements and the using ratio of the buffer of the initially set element is equal to or larger than a predetermined value, each thread pauses the reading operation of the data from the disk. The absorption of a fluctuation in the disk and the distribution of the ability according to a load are executed by the buffer and the flag so that the moving image bit stream can be stably outputted.
REFERENCES:
patent: 5414455 (1995-05-01), Hooper et al.
patent: 5586264 (1996-12-01), Belknap et al.
Maioli Jay H.
Robertson David L.
Sony Corporation
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