Projector Interface Coupling Detection With Feedback Signals

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Solution Overview

Problem

Existing display systems face issues with incorrect coupling of image output devices to interfaces in display devices due to improper setup, leading to inefficiencies and increased workload in confirming the correct connection.

Innovation Solution

A method and system for detecting the coupling state by transmitting a coupling confirmation signal and response signal through predefined interfaces, allowing devices to determine the correct interface and reduce the workload in confirming connections.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a correspondence between interface and image output device is set in advance, then the display device can be configured with multiple interfaces, but incorrect correspondence may occur leading to coupling errors

Engineering Contradiction:

Improveinterface configuration flexibilityVSAvoidcoupling accuracy

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The patent implements a feedback mechanism where the display device transmits a response signal back to the image output device after receiving a coupling confirmation signal. This feedback loop allows the image output device to verify whether the coupling was successful and whether the correct interface was identified, thereby resolving the contradiction between flexible interface configuration and reliable coupling accuracy.

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The patent enables the image output device to autonomously determine the correct interface by transmitting a coupling confirmation signal and receiving a response signal from the display device. This self-service mechanism eliminates the need for manual verification of interface correspondence, allowing the system to automatically confirm correct coupling while maintaining the flexibility of pre-configured interfaces.

Inventive Principle:

Principle #25Self-service

2Reliability

If manual confirmation of correct interface coupling is required, then coupling accuracy can be verified, but the workload and time for confirmation increases

Engineering Contradiction:

Improvecoupling verification accuracyVSAvoidconfirmation time

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The patent enables automatic self-verification of coupling correctness through the exchange of confirmation and response signals between the display device and image output device. This eliminates the need for manual confirmation while maintaining verification accuracy, directly addressing the contradiction between reliable verification and time consumption.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The automated feedback mechanism where the display device responds to coupling confirmation signals provides instant verification of correct interface coupling. This feedback loop eliminates manual confirmation steps, reducing both time loss and workload while maintaining high verification accuracy through automated signal exchange.

Inventive Principle:

Principle #23Feedback

Data Source

PatentUS20250244940A1Coupling state detection method, display system, and display device

Publication Date: 2025.07.31 SEIKO EPSON CORP

AI summary

A coupling state detection method includes, when a coupling confirmation signal from an information processing device coupled to a projector including a first I/F and a second I/F is received via a preset interface among the first I/F and the second I/F, transmitting a first response signal from the preset interface.