Handset Display Disable During Cradle Handling
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Solution Overview
Problem
There is a risk of unintentional contact with operating parts of electronic devices when they are taken out of or set in a cradle, leading to erroneous operations.
Innovation Solution
Incorporating a first sensor to detect movement directions and a controller to disable the display unit during specific movements, or using a sound acquisition unit to detect reeling sounds and control the display unit's operation accordingly, preventing unintended interactions with the device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the display unit remains operational during handling, then the device is ready for immediate use, but unintentional contact causes erroneous operations
Solution Approach 1:
The controller disables the display unit in advance before the user can accidentally operate it, by detecting movement in the taking-out or setting directions. This preliminary disabling action prevents erroneous operations while maintaining readiness - the device is prepared to operate immediately once properly positioned, but protective disabling occurs first during handling movements
Solution Approach 2:
The first sensor continuously monitors device movement and provides feedback to the controller, which automatically disables or enables the display unit based on detected movement patterns. This feedback mechanism ensures the display is disabled during handling movements but automatically re-enabled when the device is properly positioned, balancing readiness with protection against accidental operation
2Reliability
If the display unit is disabled during movement, then erroneous operations are prevented, but the device cannot respond to valid user inputs during handling
Solution Approach 1:
The display unit's operational state dynamically changes based on real-time movement detection. The controller automatically transitions the display between disabled and enabled states according to the device's position and movement, ensuring it is disabled during handling to prevent errors but enabled when properly positioned to accept user inputs, thus optimizing both reliability and productivity
Data Source
AI summary
The handset is connected to a cord that can be unreeled and reeled in, and can be set in a cradle and taken out of the cradle, the handset comprising an acceleration sensor, a display unit, and a controller. The acceleration sensor detects movement of the handset in a first direction, which is a direction in which the handset is taken out of the cradle, and/or a second direction, which is a direction in which the handset is set in the cradle. The controller controls operation of the display unit, and disables the operation of the display unit while the acceleration sensor is detecting movement of the handset in the first direction or the second direction.