Mobile Terminal Video Memo Input via Touch Path

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Solution Overview

Problem

Existing mobile terminals lack a convenient method for inputting and managing memos while recording or playing videos, as users often find it difficult to pause the video preview screen to input handwritten notes effectively.

Innovation Solution

A mobile terminal with a touch screen that outputs a preview screen of recorded video, allowing users to pause the screen and store touch paths as handwriting memos, which are then included in the recorded video, enabling convenient memo input and playback synchronization.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a video preview screen is displayed during recording, then users can monitor the recording in real-time, but users cannot input handwritten memos effectively because the screen is occupied by the video preview

Engineering Contradiction:
Improvememo input convenienceVSAvoidscreen operation complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The touch screen dynamically switches between displaying the video preview and accepting handwriting input. When handwriting input is detected, the system pauses the video preview and activates the handwriting interface, allowing users to input memos during video recording without permanent screen occupation by the preview

Inventive Principle:
Principle #15Dynamics

2Ease of operation

If the video preview screen is paused for memo input, then users can input memos more easily, but the video recording process is interrupted

Engineering Contradiction:
Improvememo input convenienceVSAvoidvideo recording efficiency
Core Design Contradiction:
Ease of operationVSProductivity

Solution Approach 1:

The system automatically pauses the video preview before handwriting input begins and automatically resumes it after input completes. This preliminary action of pausing the preview creates the necessary condition for comfortable memo input while ensuring the video recording continues uninterrupted in the background

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The video recording continues continuously in the background while the preview is temporarily paused. The useful action of video capture is maintained without interruption, while the preview display is temporarily suspended to allow memo input, then automatically resumed

Inventive Principle:
Principle #20Continuity of useful action

Data Source

PatentEP3712757B1Mobile terminal and method for controlling the same
Publication Date: 2023.05.31 LG ELECTRONICS INC
  • EP3712757B1 patent drawingFigure 1a~1b
  • EP3712757B1 patent drawingFigure 1c~2(d)
  • EP3712757B1 patent drawingFigure 3(a)~3(d)

AI summary

The present invention relates to a mobile terminal capable of receiving a memo while recording a video. Specifically, the present invention relates to a mobile terminal including a camera, a touch screen and a controller. When a video is recorded using the camera, the controller is configured to control the touch screen to output a preview screen of the camera. If a touch and drag input is received on the outputted preview screen, the controller is configured to temporarily stop outputting the preview screen and store a touch path of the touch and drag input as a handwriting memo which is included in the recorded video.