Storage device available for increasing storage capacity

• US 20040250010A1
• Filed: 10/16/2003
• Published: 12/09/2004
• Est. Priority Date: 06/05/2003
• Status: Abandoned Application

• Current Assignee: Carry Computer Engineering Co Ltd
• Original Assignee: Carry Computer Engineering Co Ltd
• Inventors: Hsieh, Hsiang-An, Chen, Chia-Li
• Application Number:
  US10/685,499
• Publication Number:
  US 20040250010A1
• Time in Patent Office: Days
• US Class Current: 711/103
• CPC Class Codes: G11C 2207/102 Compression or decompression of data before storage
• CPC Class Codes: G11C 7/1006 Data managing, e.g. manipulating data before writing or reading out, data bus switches or control circuits therefor

Abstract

The present invention provides a storage device available for increasing storage capacity, mainly comprising a controller and at least a solid-state storage medium; wherein said controller has at least a interface that may be connected to an external system, a microprocessor processing system instructions, and a memory interface communicates to said solid-state storage medium (media); said controller, through an appropriate compressing/decompressing mechanism, compresses original data transferred from the external system to minimized data in 1/N ratio and write it to said solid-state storage medium (media), in order to achieve more storage capacity in said solid-state storage medium (media).

Claims

1. A storage device available for increasing storage capacity, comprising a controller and at least a solid-state storage medium;

said controller having a system interface connected to external system end, a microprocessor processing system instructions, and a memory interface communicating with said solid-state storage medium;

wherein;

said controller has a data compression module between said system interface and said memory interface, and the data compression module compresses the original data transferred from the system interface in 1/N compression ratio under the control of the microprocessor and then stores the compressed data into said solid-state storage medium via said memory interface;

2. A storage device available for increasing storage capacity according to claim 1, wherein said storage device has a data decompression module between said system interface and said memory interface;

said decompression module, under the control of said microprocessor, retrieves compressed data stored in said solid-state storage medium and decompresses it to original data to output.

3. A storage device available for increasing storage capacity according to claim 1 or 2, wherein said storage device has a first data cache electrically connected to said system interface, said microprocessor, said data compression module and said data decompression module.

4. A storage device available for increasing storage capacity according to claim 1 or 2, wherein said controller has a second data cache electrically connected to said memory interface, said microprocessor, said data compression module and said data decompression module.

5. A storage device available for increasing storage capacity according to claim 1 or 2, wherein said data compression module and said data decompression module are in said controller.