Touchscreen Media Player Power Control via Region Mapping
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Solution Overview
Problem
Existing media players consume unnecessary electrical power when users attempt to control media functions while the touchscreen is in an inactive display state, as they often require waking the screen to register touch inputs, leading to increased power consumption.
Innovation Solution
A media player with a touchscreen that remains in a power-saving inactive display state unless a specific touch input pattern, such as a double-tap or simultaneous touches, is detected, allowing media control functions to be performed without activating the screen, using a controller to process touch input data without entering an active display state.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the touchscreen remains in inactive display state to save power, then power consumption is reduced, but the ability to receive and process touch inputs for media control is lost
Solution Approach 1:
The touchscreen is divided into multiple distinct input regions, each assigned to specific media control functions. Even in inactive state, the touchscreen maintains differentiated sensitivity and functionality across different regions, allowing users to access specific media controls without activating the full display.
Solution Approach 2:
The media control functions are pre-configured and associated with specific touchscreen regions before the device enters inactive state. When a touch input is detected in an active region, the corresponding pre-assigned media control function is executed immediately without requiring display activation, thus preserving both power savings and operational capability.
2Ease of operation
If the touchscreen enters active display state to process touch inputs, then media control functions can be performed, but electrical power usage increases
Solution Approach 1:
Different regions of the touchscreen are assigned different media control functions (e.g., play/pause, skip, volume). The controller can determine which region was touched and execute the corresponding function without activating the display, maintaining operational capability while avoiding unnecessary power consumption.
Solution Approach 2:
Media control functions are pre-mapped to specific touchscreen regions. When the device is in inactive state, the controller can still process touch inputs in these predefined regions and execute the associated media controls directly, eliminating the need to wake the display for routine media adjustments.
3Measurement precision
If the touchscreen is divided into multiple input regions for different media control functions, then operational precision is improved, but device complexity increases
Solution Approach 1:
The touchscreen surface is divided into distinct regions, each corresponding to a specific media control function. The controller uses simple region-based detection logic to determine which area was touched and executes the appropriate function, achieving precise control without requiring complex processing algorithms.
Data Source
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AI summary
A media player (1) for playing media has a controller (4) and a touchscreen (2). The controller (4) is configured to control the media player (1) in accordance with touch input data received from the touchscreen (2). In the case that the touchscreen (2) is in an inactive display state and touch input data received from the touchscreen (2) indicates that the touch input concerns a media control function, the controller (4) operates to control the media player (1) in accordance with the touch input data received from the touchscreen (2) without causing the touchscreen (2) to enter an active display state.