Screen Sharing Data Segmentation for Load Reduction

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Solution Overview

Problem

Existing screen sharing technologies face excessive communication load when multiple devices share dynamic images, particularly in scenarios where background images differ between devices, leading to inefficient data delivery.

Innovation Solution

An information processing device that determines whether the background image information has been previously delivered to external terminals, and only delivers drawing information without the background image when they match, thereby reducing communication load and ensuring seamless screen updates.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If background image data is delivered to all receiving-side devices, then screen sharing is enabled, but communication load becomes excessive when number of devices is large

Engineering Contradiction:

Improvescreen sharing capabilityVSAvoidcommunication load

Core Design Contradiction:

Adaptability or versatilityVSLoss of energy

Solution Approach 1:

The screen data is segmented into background image data and handwritten image data. The system delivers background image data only once to all receiving-side devices, then subsequently delivers only the handwritten image data updates. This segmentation eliminates redundant background data transmission while maintaining screen sharing functionality across multiple devices.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The system performs preliminary action by delivering the background image data first to all receiving-side devices before delivering the handwritten image data. This ensures that all devices have the necessary background data ready before receiving updates, enabling efficient subsequent updates without repeated background data transmission.

Inventive Principle:

Principle #10Preliminary action

2Productivity

If background images are switched point by point during presentation, then dynamic content is displayed, but background images may not coincide between delivery-side and receiving-side devices

Engineering Contradiction:

Improvedynamic content displayVSAvoidbackground image consistency

Core Design Contradiction:

ProductivityVSReliability

Solution Approach 1:

The determination section compares the currently displayed background image with the previously delivered background image to determine if they are the same. This feedback mechanism enables the system to detect when background images differ and handle such cases appropriately, ensuring reliable synchronization between delivery-side and receiving-side devices during dynamic content display.

Inventive Principle:

Principle #23Feedback

Data Source

PatentUS9875565B2Information processing device, information processing system, and information processing method for sharing image and drawing information to an external terminal device

Publication Date: 2018.01.23 SEIKO EPSON CORP

AI summary

An information processing device communicates with display terminals. The information processing device includes an image information acquisition section adapted to obtain image information, a display control section adapted to perform control of displaying an image based on the image information obtained, a drawing information acquisition section adapted to obtain drawing information adapted to draw a second image so as to be superimposed on a first image displayed based on first image information, a determination section adapted to determine whether or not the first image information is the same as delivered image information having already been delivered to the terminal device, and a delivery control section adapted to deliver the drawing information to the terminal device without delivering the first image information in a case in which it is determined that the first image information and the delivered image information are the same as each other.