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Method for power savings with memory compression

IP.com Disclosure Number: IPCOM000011949D
Publication Date: 2003-Mar-26
Document File: 3 page(s) / 64K

Publishing Venue

The IP.com Prior Art Database

Abstract

Disclosed is a method for power savings with memory compression. Benefits include improved power performance.

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Method for power savings with memory compression

Disclosed is a method for power savings with memory compression. Benefits include improved power performance.

Background

              In many computers, the amount of entropy in memory is not comparable to the occupied space of the information. One of the causes is that the information stored in random access memory (RAM) contains inherently redundant software, images, and data.

General description

              The disclosed method is power savings with memory compression. The method is applicable to devices that run on batteries or have an intermittent connection to AC power. The amount of power consumed in low power mode or the requirement for volatile memory is reduced (see Figure 1). A compression algorithm processes volatile memory to save the machine state. When power is restored, a reverse algorithm decompresses the memory.

              By compressing information and selectively turning off unused memory sections or storing them in nonvolatile memory, devices can function longer on battery power.

Advantages

              The disclosed method provides advantages, including:

•             Improved power performance due to the reduction in power consumption in low power mode

Detailed description

              The disclosed method is power savings with memory compression. The advantage of the disclosed method is a reduction in power consumption in low power mode. An example of the power gains from this procedure is seen in the memory use of a...