Terminal Screenshot Gesture Detection and Capture

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Solution Overview

Problem

Current screenshot methods on terminals are inefficient, either unable to implement partial screenshots or have low success rates due to complex operation requirements, such as needing multiple fingers or synchronized button presses, which complicates user experience.

Innovation Solution

A method and device that enable screenshot capture by detecting specific touch actions, such as rolling, shaking, or multiple touch points with certain parameters, allowing for easy entry into screenshot mode and capturing of partial or full screen content through simple touch operations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional screenshot methods require multiple fingers or synchronized button presses, then the screenshot function can be implemented, but the operation complexity increases and user experience deteriorates

Engineering Contradiction:

Improvescreenshot success rateVSAvoidoperation complexity

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The patent changes the trigger parameter from complex multi-finger or button combinations to a simple single-touch gesture with specific movement characteristics (rolling or shaking motion within a first preset time). This parameter change simplifies the operation while maintaining reliable screenshot capture through motion detection algorithms that distinguish intentional gestures from normal scrolling.

Inventive Principle:

Principle #35Parameter changes

2Adaptability or versatility

If traditional screenshot methods are used, then full screenshot can be captured, but partial screenshot functionality is unavailable

Engineering Contradiction:

Improvescreenshot type flexibilityVSAvoidscreenshot efficiency

Core Design Contradiction:

Adaptability or versatilityVSProductivity

Solution Approach 1:

The patent introduces dynamic screenshot capabilities where the screenshot type (full or partial) changes based on the gesture characteristics. After entering screenshot mode through a rolling or shaking gesture, users can perform additional touch actions to select specific regions, transforming a static full-screen capture function into a dynamic system that adapts to user needs for either full or partial screenshots.

Inventive Principle:

Principle #15Dynamics

3Reliability

If complex trigger conditions are used for screenshot mode, then false triggers are reduced, but the time required to enter screenshot mode increases

Engineering Contradiction:

Improvefalse trigger resistanceVSAvoidtime to enter screenshot mode

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The patent employs periodic detection within a first preset time window to identify characteristic rolling or shaking motions. By monitoring touch movements periodically and recognizing specific motion patterns (repeated rolling or shaking actions within the time threshold), the system distinguishes intentional screenshot triggers from normal scrolling operations, reducing false triggers while maintaining quick response through efficient temporal pattern recognition.

Inventive Principle:

Principle #19Periodic action

Data Source

PatentUS11474686B2Method and device for implementing screen capture, and storage medium

Publication Date: 2022.10.18 ZTE CORP

AI summary

Disclosed are a method and a device for implementing screenshot, and a storage medium. The method includes: when a trigger condition is satisfied, a terminal entering a screenshot mode; and when the terminal detects a touch action after entering the screenshot mode, the terminal capturing, according to the touch action, part or all of the contents of a screen.