Patent ID: 8375159
Filing Date: 2013-02-12
Classification: G06F

Abstract:
1. An electronic storage device adapted for connecting with a host system, comprising: a storage unit comprising at least one memory segment which has at least one physical block; a memory unit receiving access commands sent from said host system, each of said access commands containing at least a logical address which corresponds to a physical block; and a control unit connecting with said memory unit and determining a command execution order of said access commands according to adjacent extent of the physical blocks in said memory segment to which the logical addresses of said access commands correspond, and wherein said adjacent extent stands for the logical addresses of said access commands correspond to the same memory segment; wherein when there is a new command arrived, the command execution order is checked to insert the new arrived command thereinto; wherein after all commands of the same memory segment have been executed, a new command is selected to execute, and wherein the command which has the same type as that of the memory segment previously accessed is selected to be executed firstly and the command which have the relatively large access data is selected to be executed secondly.