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Systems and methods that provide enhanced state machine power management

A technology for managing system and power, applied in the field of state machine power management

Inactive Publication Date: 2005-11-02
SYMBOL TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above approach preserves power consumption and battery life, but the device is essentially disabled from communicating with the outside world until it transitions to a high power state

Method used

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  • Systems and methods that provide enhanced state machine power management
  • Systems and methods that provide enhanced state machine power management
  • Systems and methods that provide enhanced state machine power management

Examples

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Embodiment Construction

[0032] The present invention provides systems and methods that facilitate state machine power management. The system and method include a power management component for selectively determining which portion of the state machine receives power and / or applies power to which portion of the state machine. This power decision can be provided as a default, user-defined and / or message-generated power management configuration and be used for virtually any state machine. The systems and methods may be used with circuitry and / or battery powered wireless mobile computing devices, eg, portable terminals or scanners / readers, to reduce power consumption and / or extend battery life. The new power management tables according to the present invention provide power to desired supported functions, such as network connectors and network radios, while reducing and / or removing power to inactive components. The foregoing are systems that modify conventional systems to remain in a high power mode or ...

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Abstract

The present invention manages power for state machines. The system and methods selectively apply, remove and / or reduce power to portions of the state machine, based on power management schemes, intelligence, a user, an application, etc . Such novel systems and methods provide for sustaining a CPU and / or a network radio in an "on" state, while lowering and / or removing power to other portions of the state machine to reduce power consumption. The foregoing enables a wireless mobile terminal to maintain network connectivity and be able to wake to service events such as a link status change, a network keep alive, a proxy-ARP packets, a re-authentication packets, etc . Such power management can execute in the background and return the wireless mobile terminal to a "run" state via invocation from a wake source such as a power control, a key, a trigger, a touch screen, a wake up timer, a wake-on-LAN, etc .

Description

technical field [0001] The present invention generally relates to state machine power management, and more particularly to a system and method for selectively providing power to various parts of a state machine through enhanced power management techniques. Background technique [0002] A network typically consists of at least two microprocessor-based devices connected via hardware (e.g., network cables, hubs, switches...) and / or wireless technologies (e.g., radio frequency (RF), infrared (IF).. .) interconnect and utilize software layers (eg protocols, drivers...) to communicate with each other. In most instances, at least one of the microprocessor-based devices is a computer (eg, desktop, workstation, notebook, personal digital assistant (PDA), handheld mobile terminal . . . ). For example, a stand-alone computer may be networked with a peripheral device, such as a printer, scanner, and / or fax machine, to enhance the user experience by providing hard copies of generated in...

Claims

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Application Information

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IPC IPC(8): G06F1/32H04B1/16H04B1/38H04L29/00H04M1/00
CPCH04B1/1615G06F1/3287Y02B60/1278G06F1/3203H04W52/0274Y02B60/50G06F1/3209H04W52/028Y02B60/41Y02B60/1282Y02D10/00Y02D30/00Y02D30/70H04W52/02
Inventor A·达高斯地诺C·S·伯伦D·谢弗
Owner SYMBOL TECH INC
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