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Using historic load profiles to dynamically adjust operating frequency and available power to a handheld multimedia device processor core

A multimedia device and processor core technology, applied in the direction of data processing power supply, electrical digital data processing, digital data processing components, etc., can solve the problems that have not yet been used, and the power management technology of handheld multimedia applications does not yet exist, so as to reduce power consumption. consumption effect

Inactive Publication Date: 2008-07-16
NYTELL SOFTWARE LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In other applications, power management techniques for handheld multimedia applications do not exist or are not used

Method used

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  • Using historic load profiles to dynamically adjust operating frequency and available power to a handheld multimedia device processor core
  • Using historic load profiles to dynamically adjust operating frequency and available power to a handheld multimedia device processor core
  • Using historic load profiles to dynamically adjust operating frequency and available power to a handheld multimedia device processor core

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Embodiment Construction

[0014] Currently, techniques for saving CPU energy usage in handheld devices that process multimedia data have not been optimized. Current systems do not investigate and take into account the characteristics or complexity of the multimedia content when determining the appropriate amount of power or operating frequency to provide to the CPU for processing specific multimedia content. In other words, current power saving techniques do not provide dynamic and optimized power saving methods. Furthermore, current fixed power saving systems may cause problems such as video / audio loss during playback and / or possible degradation of playback quality due to handheld hardware capabilities being limited by a power budget control that is set to a predetermined pre-estimated bound .

[0015] One of the biggest challenges facing the handheld multimedia device industry today is how to run multimedia applications on portable handhelds and other portable devices while optimizing the power used...

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Abstract

A technique is provided for use in a handheld multimedia device that uses the historical load profile statistics of a particular multimedia stream to dynamically scale the computational power of a computing engine, depending upon the complexity of the multimedia content and thereby reduce the power consumption for computationally less intensive content and consequently reduce the power consumption by a significant amount over a duration of time.

Description

Background technique [0001] Power consumption is currently an area of ​​intense research in applications requiring streaming or playback of multimedia content in handheld or portable devices. Some handhelds have a fixed low power setting that helps reduce CPU power consumption depending on the system architecture and the silicon on which the application is running. Other handheld devices use low-power techniques in the design of the silicon itself, helping to reduce overall power consumption. In other applications, power management techniques for handheld multimedia applications do not exist or are not used yet. [0002] One of the most widely used power saving techniques in handheld devices is achieved by setting the operating frequency of the CPU / hardware and memory to a predetermined upper limit. This predetermined upper frequency limit of operation enables most current multimedia content to be decoded and played back on handheld devices. This is a one speed fits all sit...

Claims

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Application Information

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IPC IPC(8): G06F1/32
CPCG06F1/3203G06F1/324G06F1/3296Y02D10/00
Inventor 马诺耶·库尔特斯坦·芬克
Owner NYTELL SOFTWARE LLC
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