Foldable Mobile Terminal Volume Control
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Solution Overview
Problem
Existing mobile terminal technologies do not consider the duration since closure or operational state when controlling ringtone volume for incoming calls, leading to unnecessary loud notifications and potential hearing issues.
Innovation Solution
A mobile terminal system that determines the output for incoming calls based on the duration since closure and operational state, using a counter to differentiate between standard and operative volume settings, and also considers the display and backlight states to adjust notification methods such as ringtone or vibration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the ring tone volume is set to maximum permissible value to ensure the user notices the incoming call, then the notification effectiveness is improved, but it causes excessive sound volume and potential hearing issues when the user is holding the terminal
Solution Approach 1:
The patent applies dynamics by making the ring tone volume adjustable rather than fixed. The control unit dynamically changes the volume based on the detected holding state of the terminal. When the terminal is detected to be held (within predetermined time after closure), a first volume level is used; when not held (after predetermined time), a second volume level is used. This dynamic adjustment resolves the contradiction between ensuring notification effectiveness and avoiding excessive sound volume.
Solution Approach 2:
The patent changes the parameter of ring tone volume based on the operating state of the terminal. By detecting whether the terminal is in a held state (via timing since closure and operational state monitoring), the system adjusts the volume parameter accordingly. This parameter change allows the system to optimize notification effectiveness while preventing harmful excessive volume when the user is holding the device.
2Object-affected harmful factors
If the ring tone volume is reduced when the terminal is held to avoid excessive sound, then the hearing safety is improved, but the notification effectiveness may be insufficient when the user is not holding the terminal
Solution Approach 1:
The system dynamically adjusts ring tone volume based on real-time detection of the terminal's holding state. When the terminal is held (detected within predetermined time after closure), the volume is reduced to a first level for hearing safety. When the terminal is not held (detected after predetermined time), the volume increases to a second level for effective notification. This dynamic response ensures both hearing safety and notification effectiveness are maintained appropriately.
Solution Approach 2:
The patent implements feedback by continuously monitoring the terminal's operating state and closure timing to determine the holding state. Based on this feedback information, the control unit automatically adjusts the ring tone volume. This closed-loop feedback mechanism ensures that the volume is always appropriate for the current usage context, preventing both excessive volume and insufficient notification.
3Measurement precision
If the terminal closure time is monitored to determine holding state, then the volume control accuracy is improved, but the device complexity increases due to additional timing and state detection mechanisms
Solution Approach 1:
The patent applies universality by using the existing closure detection mechanism and operational state monitoring for multiple purposes. The same detection system that tracks terminal closure and operational states is also used to determine the holding state for volume control. This multi-functional use of existing components achieves accurate holding state detection without adding significant complexity to the device.
Solution Approach 2:
The system uses its own existing resources (closure detection capability, operational state monitoring, and timing functions) to determine the holding state. Rather than requiring external or additional specialized sensors, the terminal leverages its built-in capabilities to achieve accurate volume control based on holding state, thereby avoiding increased device complexity.
Data Source
AI summary
Counting of time is started when a housing of a foldable type of mobile terminal changes from an open state to a close state, and it is detected whether it is during counting or not when there is an incoming call. In the case where it is during counting, count time is acquired to check whether it is less than predetermined time or not. In the case where it is not during counting, operating states of a display section 4 and a backlight 5 are detected to check whether they are coincident with operating states registered in advance or not. In the case where the count time is less than the predetermined time, or in the case where the operating states of the display section 4 and the backlight 5 are coincident with them, a ring tone is outputted with first sound volume. In the case where the count time is the predetermined time or more, or in the case where the operating states of the display section 4 and the backlight 5 are not coincident with them, a ring tone is outputted with second sound volume.