PDA Phone Power Control Mode Transition
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Solution Overview
Problem
Conventional PDA phones consume excessive power due to maintaining unnecessary modes like called, in-call, and calling modes, and lack the ability to transition to sleep mode in all states, leading to inefficient power management.
Innovation Solution
Implementing a power consumption control method that automatically transitions the PDA phone from idle, called, calling, and in-call modes to sleep mode after a certain time or upon user input, reducing power consumption across all states.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the PDA phone maintains multiple operational modes (called, in-call, calling) to handle various user scenarios, then the adaptability and functionality are improved, but the power consumption increases significantly
Solution Approach 1:
The patent implements dynamic mode transition control where the system automatically adjusts between operational modes based on real-time conditions. The control unit monitors system state and autonomously transitions between sleep, idle, called, in-call, and calling modes, making the power management system adaptive rather than static. This resolves the contradiction by enabling versatile mode handling while automatically selecting power-efficient transitions.
Solution Approach 2:
The system changes operational parameters (mode states) based on detected conditions. When specific conditions are met (e.g., call completion, user inactivity), the system transitions parameter values between modes, particularly forcing transitions to sleep mode to reduce power consumption. This parameter-based control allows the system to maintain adaptability while systematically reducing power usage through controlled state changes.
2Ease of operation
If the PDA phone stays in high-power modes (idle, called, calling, in-call) to ensure immediate responsiveness to user actions, then the ease of operation is improved, but the battery life decreases
Solution Approach 1:
The system performs preliminary transitions to sleep mode when conditions indicate that high-power modes are no longer needed. By proactively transitioning to low-power states before battery depletion becomes critical, the system prepares for extended operation. This preliminary action resolves the contradiction by balancing immediate responsiveness with proactive power conservation.
Solution Approach 2:
The control unit continuously monitors system state and uses this feedback to determine appropriate mode transitions. Based on feedback from call status, user activity detection, and system conditions, the controller makes informed decisions about when to transition between modes, particularly when to return to sleep mode. This feedback mechanism ensures responsiveness while optimizing battery life through data-driven mode selection.
3Extent of automation
If the PDA phone automatically transitions between modes without user intervention, then the extent of automation is improved, but the device complexity increases due to additional control logic
Solution Approach 1:
The control unit serves multiple functions: it manages mode transitions, monitors system state, detects user actions, and controls power distribution. By making the control unit universal and multi-functional, the patent avoids adding separate dedicated controllers for each function. This resolves the contradiction by achieving high automation through a consolidated control system rather than multiple specialized components.
Solution Approach 2:
The patent merges the power management control logic with the existing operational control system. Rather than adding a separate complex control system, the mode transition control is integrated into the existing control architecture. This merging approach achieves automatic mode transitions while minimizing the increase in overall device complexity by reusing existing control infrastructure.
Data Source
AI summary
A power consumption control apparatus and a method thereof in the PDA phone comprise: transiting the PDA phone from an idle mode to a sleep mode automatically after a certain amount of time or by user's input signal; transiting the PDA phone from a called mode to the sleep mode automatically after a certain amount of time or by user's input signal; transiting the PDA phone from a calling mode to the sleep mode automatically after a certain amount of time or by user's input signal; and transiting the PDA phone from an in-call mode to the sleep mode automatically after a certain amount of time or by user's input signal, so that the power consumption control apparatus and the method thereof in a personal digital assistant (PDA) phone in accordance with the present invention can reduce power consumption of the PDA phone by transiting the PDA phone from a called mode, an in-called mode and a calling mode to a sleep mode, and cope with the circumstances which may occur in every state of the PDA phone.