Mobile Terminal Caption Font Size Adjustment via Proximity Sensing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Traditional mobile terminals lack the ability to adaptively adjust captions and voice volume based on the distance between the user and the screen during video playback, leading to suboptimal user experience.
Innovation Solution
A method and device that acquire the distance between the mobile terminal's screen and the user's eyes, dynamically adjusting the caption font size and volume in a progressive relationship, using proximity sensing to ensure optimal viewing and listening experience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the mobile terminal uses fixed caption font size and volume during video playback, then the device complexity is reduced, but the adaptability to different viewing distances deteriorates
Solution Approach 1:
The system continuously monitors the distance between the user and screen using a proximity sensor, and uses this feedback to dynamically adjust caption font size and volume. This closed-loop feedback mechanism enables automatic adaptation to different viewing distances without requiring complex manual configuration interfaces.
Solution Approach 2:
The system automatically adjusts caption and volume parameters based on detected distance, eliminating the need for user intervention. The mobile terminal serves itself by autonomously optimizing display and audio settings according to the user's position, reducing the need for complex user interface elements.
2Ease of operation
If the mobile terminal dynamically adjusts caption font size based on distance, then the user experience is improved, but the measurement precision requirements increase
Solution Approach 1:
The system changes display and audio parameters (caption font size, volume) based on detected distance parameters. By establishing predetermined relationships between distance ranges and parameter values, the system achieves good user experience without requiring extremely high measurement precision, as long as the distance can be categorized into appropriate ranges.
Solution Approach 2:
The system pre-establishes the relationship between distance ranges and optimal caption/volume parameters. This preliminary configuration allows the system to quickly adjust settings based on detected distance without requiring real-time complex calculations, reducing the burden on measurement precision.
3Adaptability or versatility
If the mobile terminal uses high-definition video formats, then the multimedia experience is enhanced, but the caption visibility at varying distances deteriorates
Solution Approach 1:
The system dynamically adjusts caption font size based on the detected distance between the user and the screen. When the user is farther away, the caption font size increases to maintain visibility; when closer, it decreases to maintain proportionality with the video content, thereby maintaining good caption visibility across different viewing distances while enjoying high-definition video.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution effectively mitigates the issue by ensuring that the caption font size and volume are adjusted in real-time according to the user's distance, enhancing the overall multimedia experience by maintaining clear and readable text and audible audio.
Implementation Method 1
a proximity sensor, also referred to as a displacement sensor, needs to be implanted into the mobile terminal, which, in normal situations, is arranged at the two sides or in a groove of the mobile phone receiver. The principle thereof lies in calculating, through acquiring the physical variations of the monitored object, the distance from the sensor to the detected object.
Data Source
AI summary
Disclosed are a method and a device for displaying a video on a mobile terminal. The method comprises: a distance between a display screen of the mobile terminal which is displaying the video and human eyes watching the video being displayed on the mobile terminal is acquired; and according to the acquired distance, the caption font size of the video being displayed on the mobile terminal is adjusted, wherein the caption font size and the acquired distance are in a progressive increase relationship. The technical solution provided in the disclosure achieves the effect that the change in the distance between a display screen of the mobile terminal and a user does not influence the user when watching a caption in a video being displayed on the mobile terminal, and the user experience is friendly.