Mobile Terminal Touch Screen Magnification Control
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Solution Overview
Problem
Mobile terminals face inconvenience in executing camera functions due to complex processes required for setting or editing images, necessitating a solution for immediate and efficient execution of camera functions through touch screen interactions.
Innovation Solution
A mobile terminal with a camera, touch screen, and controller that allows for changing magnification ratios and activating specific functions by touch, enabling partitioning of the screen into regions for independent control and simultaneous display of images from multiple cameras, and allowing image storage without stopping video capture.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a user wants to execute camera functions, then the function can be activated, but the user must enter setting change mode or display a setting screen first, which increases the number of operations required
Solution Approach 1:
The system prepares the camera function execution environment in advance by monitoring touch screen interactions. When specific touch patterns are detected on the preview screen, the system is already positioned to immediately execute the desired camera function without requiring the user to navigate through setting menus first.
Solution Approach 2:
The system automatically detects user intent through touch patterns on the preview screen and self-executes the appropriate camera function. This eliminates the need for users to manually enter setting modes or search through menus, as the system serves itself by interpreting touch gestures and activating corresponding functions directly.
2Adaptability or versatility
If the touch screen is partitioned into multiple regions for independent control, then the control flexibility is improved, but the device complexity increases
Solution Approach 1:
The touch screen is divided into multiple independent control regions, each capable of receiving and processing touch inputs separately. This segmentation allows different areas of the screen to control different camera functions or parameters independently, providing granular control without requiring complex overall system redesign.
Solution Approach 2:
Each partitioned region on the touch screen is designed to handle multiple types of touch gestures and control different camera functions. This multi-functionality approach allows the same hardware structure to support diverse control scenarios, reducing the need for dedicated controls for each function and thereby limiting complexity increase.
3Adaptability or versatility
If images from multiple cameras are displayed simultaneously on the touch screen, then the functionality is enhanced, but the screen real estate for each image is reduced
Solution Approach 1:
The system transitions from displaying a single full-screen image to a multi-region layout where multiple camera feeds are arranged in different spatial zones. This dimensional reorganization of the display space allows simultaneous presentation of multiple camera views, with each region maintaining adequate visibility while accommodating the enhanced multi-camera functionality.
Data Source
AI summary
A mobile terminal includes: a camera; a touch screen; and a controller configured to: cause the touch screen to display an image received via the camera, the image acquired at a first magnification ratio; control the camera to change a magnification ratio from the first magnification ratio to a second magnification ratio based on a touch applied to the touch screen displaying the image; cause the touch screen to display an image acquired at the second magnification ratio; and activate a specific function if the touch is continuously applied to the touch screen displaying the image acquired at the second magnification ratio.