Patent ID: 7564639
Filing Date: 2009-07-21
Classification: G06F,G11B,Y02D

Abstract:
1. A battery powered device comprising: a disk memory; a means for rotating the disk memory; a read/write means for at least one of reading and writing streaming data from or to the disk memory; a buffer memory for storing data read from or to be written to the disk memory, said buffer memory including a plurality of buffer memories associated with a corresponding one of said streaming data allowing concurrent reading and writing, said buffer memory being partitioned into n buffers for n data streams, wherein at least one buffer memory buffers data to be written and at least one buffer memory buffers data that has been read, said plurality of buffer memories being chosen proportional to a maximum bit rate associated with said corresponding streaming data, an energy saving scheduling means for: controlling the disk memory rotating means in accordance with the adjusted schedule, wherein the scheduling means performs the functions of: