Video Conference Layout Stability via Time Delay

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Solution Overview

Problem

In TV conference systems, frequent screen transitions occur due to changes in reception band, causing user discomfort as image data is prioritized and de-prioritized, leading to unstable image display.

Innovation Solution

An information processing apparatus with a receiver, display number determiner, layout determiner, and display processor that maintains the same layout for a predetermined time before adjusting the number of displayed images, using substitute images when necessary, to reduce screen transitions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If the terminal device adjusts the number of displayed images based on reception band changes, then the communication efficiency is improved, but the display stability deteriorates due to frequent screen transitions

Engineering Contradiction:
Improvecommunication efficiencyVSAvoiddisplay stability
Core Design Contradiction:
ProductivityVSStability of the object's composition

Solution Approach 1:

The system dynamically adjusts the number of displayed images based on reception band conditions, transitioning between displaying multiple images when bandwidth is sufficient and displaying a single image when bandwidth is limited. This dynamic adaptation resolves the contradiction by making the display configuration flexible rather than fixed, allowing the system to optimize communication efficiency while managing display stability through controlled transitions.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The layout determiner determines the layout at specific intervals or triggered by reception band changes, rather than continuously adjusting. This periodic determination approach prevents excessive screen transitions while still responding to significant bandwidth variations, thereby maintaining display stability while preserving communication efficiency improvements.

Inventive Principle:
Principle #19Periodic action

2Adaptability or versatility

If the layout is changed immediately when the number of images to be displayed changes, then the adaptability to communication conditions is improved, but the user comfort deteriorates due to frequent screen transitions

Engineering Contradiction:
Improveadaptability to communication conditionsVSAvoiduser comfort
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The system prepares multiple layout configurations in advance corresponding to different reception band conditions. When bandwidth changes occur, the system switches between pre-prepared layouts rather than creating new layouts dynamically. This preliminary preparation reduces the computational overhead and transition frequency, improving user comfort while maintaining adaptability to communication conditions.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The layout determiner changes layout parameters (such as the number of displayed images and their arrangement) based on reception band parameters. By linking layout parameters to communication condition parameters, the system achieves adaptability to communication conditions while the controlled nature of parameter changes prevents excessive transitions, thereby preserving user comfort.

Inventive Principle:
Principle #35Parameter changes

3Loss of information

If multiple images are displayed when reception band is sufficient, then the information completeness is improved, but the system complexity increases due to layout management

Engineering Contradiction:
Improveinformation completenessVSAvoidsystem complexity
Core Design Contradiction:
Loss of informationVSDevice complexity

Solution Approach 1:

The display is segmented into multiple regions that can independently display different images. When reception band is sufficient, multiple segments are activated to display multiple images simultaneously, providing complete information. When bandwidth is limited, only one segment is activated. This segmentation approach manages system complexity by using a modular structure that can be easily configured and controlled.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The layout determiner serves multiple functions: it determines the number of images to display, arranges the images in appropriate positions, and adapts to different reception band conditions. By making this single component multi-functional, the system reduces overall complexity while maintaining the ability to display multiple images when bandwidth permits, thus preserving information completeness without proportionally increasing system complexity.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentUS9864563B2Information processing apparatus, image display method, and communication system
Publication Date: 2018.01.09 RICOH CO LTD
  • US9864563B2 patent drawing
  • US9864563B2 patent drawing
  • US9864563B2 patent drawing

AI summary

An information processing apparatus includes a receiver configured to receive images from other information processing apparatuses via a network; a determiner configured to determine a number of the images to be displayed on a display device based on a communication status; a determiner configured to determine a layout of a screen on which the images are displayed, according to the determined number; a determiner configured to determine whether a predetermined time has passed from when the layout has been previously changed, when the determined number is different from the number presently displayed; and a display processor configured to display the screen having the previously changed layout until the predetermined time is determined to have passed since the layout is previously changed, and to display the screen having a different layout, which is newly determined, when the predetermined time is determined to have passed since the layout is previously changed.