Cross-Terminal Screenshot Capture for High-Clarity Data Transfer
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Solution Overview
Problem
Current methods for transmitting information from a computer screen to a smartphone, such as taking photos, result in poor image quality and low clarity due to interference from screen refresh frequencies and other factors.
Innovation Solution
A method involving a first terminal sending a screenshot instruction and target area indication to a second terminal, which performs a screenshot and sends a local screenshot containing the target information, allowing for higher quality image transmission with reduced interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If a photo is taken of a computer screen with a smartphone, then the information can be transmitted to another smartphone, but the image quality is poor and information clarity is low
Solution Approach 1:
The patent uses screenshot technology to create a digital copy of the screen content instead of using optical photography. The second terminal receives a screenshot instruction, performs a screenshot of its screen to obtain a target screenshot, and sends this digital copy to the first terminal. This copying approach eliminates the optical interference and quality degradation inherent in photographing screens, directly resolving the contradiction between information clarity and image quality.
2Loss of information
If a global screenshot is performed to capture the entire screen, then all information is captured, but the file size increases and transmission efficiency decreases
Solution Approach 1:
The patent implements segmentation by dividing the screenshot process into targeted area capture. Instead of capturing the entire screen, the system captures only the specific target area that contains the required information. The second terminal performs a screenshot of the screen according to the screenshot instruction and target area indication information to obtain a target screenshot that is a local screenshot comprising only the target information. This segmentation reduces file size and improves transmission efficiency while maintaining information completeness for the required content.
3Speed
If a screenshot is taken during screen refresh, then the capture speed is fast, but the image quality fluctuates due to refresh frequency interference
Solution Approach 1:
The patent employs feedback mechanisms to monitor and respond to screen refresh states. The system detects the screen refresh frequency and adjusts the screenshot timing accordingly. By using feedback from the screen's refresh cycle, the system can determine the optimal moment to capture the screenshot, ensuring that the capture occurs when the display is stable rather than during refresh transitions. This feedback-based timing resolution eliminates the quality fluctuations caused by refresh interference while maintaining fast capture speed.
Data Source
AI summary
Method, device and system for information transmission and data processing. In embodiments, for target information displayed on the screen of a second terminal, when a first terminal needs the target information, the first terminal cooperates with the second terminal, and the second terminal captures the screen of the second terminal, based on the screenshot operation of the second terminal, which is combined with the information that indicates the position of the target information on the screen of the second terminal and the cross-screen transmission, the first terminal obtains the target screenshot containing the target information. Compared to taking a photo of the screen of the second terminal, the screenshot is relatively less affected by interference factors such as the screen refresh frequency, quality of the screenshot is relatively high, thus information obtained by the first terminal has relatively high clarity.