Display Control Apparatus for Dynamic Video Playback
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Solution Overview
Problem
Users may not be able to see the entirety of video data displayed on display apparatuses due to not considering the user's movement mode, which can vary by time of day, climate, and surroundings.
Innovation Solution
A display control apparatus that uses a processor to detect user movement mode, estimate the time the user is in a viewing area, and control video data playback to ensure it completes within this time, adjusting playback speed or selecting appropriate video content based on the user's position, direction, and speed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If video data is displayed with fixed playback time regardless of user movement, then the display system is simple to control, but users may not be able to see the entirety of video data when moving quickly past the display
Solution Approach 1:
The patent applies dynamics by making the playback time of video data adjustable based on detected user movement speed. The system transitions from a static fixed playback time to a dynamic playback time that adapts to user movement conditions, resolving the contradiction between information completeness and system complexity
Solution Approach 2:
The patent implements feedback by using a detector to obtain user position information and movement speed, then using this feedback to adjust the playback time accordingly. This closed-loop control ensures video data completeness while maintaining manageable system complexity through automated adjustment
2Loss of information
If playback time is extended to ensure users see all video content, then users can view complete information, but users moving quickly will still not be able to see the entirety due to limited viewing time
Solution Approach 1:
The patent changes the playback time parameter based on detected user movement speed. When users are detected moving quickly, the playback time is shortened appropriately; when users move slowly or are stationary, the playback time is extended. This dynamic parameter adjustment resolves the contradiction between information completeness and viewing time availability
3Reliability
If the system adapts playback to user movement mode, then users can see complete video data, but the system requires detecting and responding to various movement patterns
Solution Approach 1:
The patent implements self-service by enabling the display system to automatically detect user movement patterns and adjust playback time without requiring manual intervention. The system serves itself by using its own detection capabilities to control its playback behavior, improving reliability while keeping operational complexity manageable
Data Source
AI summary
A display control apparatus includes a processor configured to: obtain detection information from a detector that detects a user; obtain a movement mode of the user based on the detection information; estimate a being time during, which the user is in a predetermined viewing area of a display apparatus based on the movement mode; and control display of video data displayed on the display apparatus so that a playback time of the video data becomes less than or equal to the being time.