Handheld Standby Key Prevents Accidental Activation
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Solution Overview
Problem
Handheld electronic devices are prone to accidental key actuation and unintended operations during storage, leading to excessive power consumption and unwanted functions such as accidental calls or messages, due to their compact size and mobility.
Innovation Solution
A standby mode system is implemented using a dedicated standby key, which initiates and exits the standby mode with deliberate user action, disabling features like the trackball and keyboard to prevent accidental activation, and enabling specific keys for incoming calls, with confirmation messages and abort options to ensure intentional user interaction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If the handheld electronic device is made compact for portability, then mobility and storage convenience are improved, but the likelihood of accidental key actuation increases
Solution Approach 1:
The device automatically enters standby mode when detected to be in a pocket or bag, preventing accidental activation before it can occur. This preliminary action of transitioning to standby mode eliminates the reliability issue while maintaining compact design.
2Use of energy by moving object
If features are disabled to prevent accidental activation, then power consumption is reduced, but user accessibility and ease of operation deteriorate
Solution Approach 1:
The device dynamically transitions between active and standby modes based on contextual detection. When in a pocket or bag, it enters standby mode to conserve power; when removed, it automatically returns to active mode for full functionality. This dynamic behavior resolves the contradiction between power savings and ease of operation.
3Duration of action of moving object
If a standby mode is implemented to reduce power consumption, then battery life is improved, but device complexity increases
Solution Approach 1:
The device uses its existing sensors and processors to detect whether it is in a pocket or bag and automatically manages the standby mode transition. This self-service approach eliminates the need for additional dedicated hardware, reducing complexity while extending battery life through automatic standby management.
Data Source
AI summary
A handheld electronic device comprises a dedicated standby key for initiating a standby mode in the handheld electronic device. The handheld electronic device further comprises means for disabling at least a portion of a keyboard and any navigation actuator of the handheld electronic device upon entry into the standby mode. The dedicated standby key is embedded along a first edge of the handheld electronic device.