Communication Terminal Viewable Area Synchronization

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Solution Overview

Problem

Existing communication systems that allow multiple users to view images remotely are inconvenient when different users have different areas of interest, limiting the freedom of display and flexibility in viewing specific parts of the shared image.

Innovation Solution

A communication terminal and system that includes circuitry to display a viewable area image of a shared whole image, with the ability to store identification information and receive viewable area information from other terminals, allowing the system to determine and adjust the display state based on operation states, enabling seamless switching between operating and standby states for synchronized viewing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If remote display control is implemented to allow one user to control another user's display, then communication between sites is facilitated, but users cannot freely view different areas of interest, limiting display freedom

Engineering Contradiction:
Improveremote display controlVSAvoiddisplay freedom
Core Design Contradiction:
Ease of operationVSAdaptability or versatility

Solution Approach 1:

The system dynamically switches between two display modes: synchronized display mode where one terminal controls another's display, and independent display mode where each terminal can freely select and display different viewable areas. This dynamic adaptability resolves the contradiction by allowing the system to be controlled when needed while maintaining independence when users want to view different areas of interest.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system changes the display parameter (viewable area) based on the operation state of the first terminal. When the first terminal is in operation state, the second terminal displays the same viewable area; when the first terminal is in standby state, the second terminal can display a different viewable area selected by the third terminal. This parameter change enables both remote control functionality and display freedom.

Inventive Principle:
Principle #35Parameter changes

2Reliability

If the same image is transmitted to all terminals, then all users can view the same content, but users cannot independently view different areas of interest

Engineering Contradiction:
Improveimage sharing consistencyVSAvoidindependent viewing
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The system segments the whole image into multiple viewable areas and allows different terminals to select and display different segments (viewable areas) of the same whole image. This segmentation enables users to independently view different areas of interest while still sharing the same overall image content, resolving the contradiction between consistency and independence.

Inventive Principle:
Principle #1Segmentation

3Ease of operation

If a terminal displays a viewable area image, then specific areas can be highlighted, but switching between different display states may cause delays

Engineering Contradiction:
Improveviewable area displayVSAvoidstate switching time
Core Design Contradiction:
Ease of operationVSLoss of time

Solution Approach 1:

The second terminal receives and stores viewable area information from the third terminal in advance, before the first terminal transitions to standby state. When the first terminal does transition to standby, the second terminal can immediately display the pre-received viewable area information without waiting or delay. This preliminary action eliminates time loss during state switching.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS11042342B2Communication terminal, image communication system, display method, and non-transitory recording medium
Publication Date: 2021.06.22 RICOH CO LTD
  • US11042342B2 patent drawing
  • US11042342B2 patent drawing
  • US11042342B2 patent drawing

AI summary

A communication terminal includes circuitry that displays a first image corresponding to a first area of a whole image shared by communication terminals, and stores first terminal information identifying a first one of the communication terminals that causes a second one of the communication terminals to display an image being displayed by the first communication terminal. The circuitry receives second terminal information and viewable area information from a third one of the communication terminals that displays a second image corresponding to a second area of the whole image. The second terminal information identifies the third communication terminal. The viewable area information represents the second area. When the first terminal information and the second terminal information are the same, the circuitry determines whether an operation state of the first image is an operating state, and if so, displays the second image after the operation state shifts to a standby state.