High performance mass storage systems
OwnerJeng-Jye Shauinventor
Life of this patent
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Abstract
A data access system for accessing data stored in a first and a second memory devices. The first and second memory devices have a difference of latency ΔL that constitutes a time-duration by which the first memory device starts an initial data access earlier than in the second memory device. A data access controller is implemented to simultaneously access data in the first and second memory devices and to stop accessing data in the first memory device once a data access operation has begun in the second memory device. Therefore, the first memory device stored data only accessed initially in a time duration corresponding substantially to the difference of latency ΔL before the data access operations is started in the second memory device.
Claims18
A data access system for accessing data stored in a first and a second memory devices wherein:
- said first and second memory devices having a difference of latency ΔL constituting a time-duration by which said first memory device starts an initial data access earlier than in said second memory device;
- and
- a data access means for simultaneously accessing data in said first and second memory devices and for stopping accessing data in said first memory device once a data access operation has begun in said second memory device whereby said first memory device storing data only accessed initially in a time duration corresponding substantially to said difference of latency ΔL.
A data memory system comprising:
- a dynamic random access memory (DRAM) and a static random access memory (SRAM) wherein said DRAM comprising a plurality of rows and said SRAM storing first several data of a plurality of rows in said DRAM and said DRAM storing data of a plurality of entire rows in said DRAM.
A method for accessing data stored in a first and a second memory devices having a difference of latency ΔL constituting a time-duration by which said first memory device starts an initial data access earlier than in said second memory device, comprising:
- simultaneously accessing data in said first and second memory devices and stopping accessing data in second first memory device once an initial data access in said second memory device begins.
A method of configuring data memory system comprising:
- dividing a dynamic random access memory (DRAM) into a plurality of rows for storing data into a plurality of entire rows and storing first several data from a plurality of said rows of said DRAM in a static random access memory (SRAM).
Dependencies are inferred from the claim text.