Relay Device Synchronizing Multi-Vision Touch Data

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Solution Overview

Problem

Multi-vision display systems, which combine multiple display devices to display a single image, lack a touch function, and existing solutions fail to efficiently implement touch functionality due to differences in processing speeds among the display devices, leading to incorrect calculation of touch coordinates.

Innovation Solution

A relay device and touch driving device configuration that alternates between enable and disable signals to synchronize touch data transmission from multiple display devices, allowing the relay device to calculate and transmit multi-vision touch coordinates to a host, thereby enabling touch functionality across the multi-vision system.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If touch data is transmitted from multiple display devices simultaneously, then touch functionality is enabled, but incorrect calculation of touch coordinates occurs due to differences in processing speeds

Engineering Contradiction:

Improvetouch functionalityVSAvoidtouch coordinates

Core Design Contradiction:

Adaptability or versatilityVSMeasurement precision

Solution Approach 1:

The patent implements periodic enable/disable signaling to synchronize touch data transmission from multiple display devices. Each display device receives periodic enable signals that allow it to transmit touch data only during designated time windows, ensuring coordinated transmission despite different processing speeds. This periodic control mechanism prevents coordinate calculation errors while maintaining touch functionality across the multi-vision system.

Inventive Principle:

Principle #19Periodic action

Solution Approach 2:

The relay device serves as an intermediary between multiple touch driving devices and the host. It receives touch data from various display devices, synchronizes the data using enable/disable signals, calculates multi-vision touch coordinates, and transmits the results to the host. This intermediary approach resolves the coordination problem by centralizing the synchronization and calculation functions.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Reliability

If touch data is transmitted from multiple display devices with different processing speeds, then complete touch data is collected, but synchronization difficulties arise leading to incorrect coordinate calculation

Engineering Contradiction:

Improvetouch data collectionVSAvoidsynchronization mechanism

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The system uses periodic enable signals transmitted from the relay device to each touch driving device. These enable signals create synchronized transmission windows that accommodate different processing speeds while maintaining overall coordination. Each display device transmits touch data only when it receives an enable signal, ensuring reliable data collection without complex continuous synchronization mechanisms.

Inventive Principle:

Principle #19Periodic action

Solution Approach 2:

The relay device preliminarily synchronizes touch data transmission by sending enable signals before data transmission occurs. This preliminary coordination ensures that each display device is ready to transmit at the appropriate time, preventing synchronization issues during actual data collection while keeping the mechanism relatively simple.

Inventive Principle:

Principle #10Preliminary action

3Measurement precision

If enable and disable signals are used to synchronize touch data transmission, then accurate touch coordinates are calculated, but transmission time varies depending on state signals

Engineering Contradiction:

Improvetouch coordinatesVSAvoidtransmission time

Core Design Contradiction:

Measurement precisionVSLoss of time

Solution Approach 1:

The enable/disable signaling operates periodically, creating structured time windows for data transmission. While individual transmission times vary based on when each display device receives the enable signal and completes processing, the periodic nature ensures that all devices eventually transmit their data within predictable cycles, maintaining coordinate accuracy without excessive time loss.

Inventive Principle:

Principle #19Periodic action

Solution Approach 2:

The system dynamically adjusts transmission timing based on each display device's processing speed. Devices with faster processing complete their operations earlier within the enable signal window, while slower devices take longer. This dynamic adaptation allows accurate coordinate calculation from all devices without requiring uniform transmission times, accepting variable delays as necessary for precision.

Inventive Principle:

Principle #15Dynamics

Data Source

PatentUS11334188B2Touch driving device, relay device and method for implementing touch of multi-vision

Publication Date: 2022.05.17 SILICON WORKS CO LTD

AI summary

The present disclosure relates to a relay device, a touch driving device, and a method for implementing a touch function in a multi-vision. In particular, it relates to a relay device, a touch driving device, and a method for implementing a touch function in a multi-vision without problems using a state signal indicating the transmissible state of touch data from each display device of a multi-vision.