Interface Extension Device for Multi-Terminal Screen Sharing
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Solution Overview
Problem
Existing technologies face challenges in enabling effective and interactive media sharing among multiple terminals like mobile phones, tablet PCs, and computers, as they require complex and costly server networks and are limited by the number of data interfaces, hindering seamless image sharing and operation.
Innovation Solution
An interface extension device with multiple video, multi-function, and sharing ports, a multi-function control unit, bridge unit, and image control unit facilitates data transmission between sharing ports, allowing devices to share media in a mirroring or extending manner, enabling synchronous operations such as drag, zoom, and click functions across connected terminals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a high-complicated and high-cost server network is used for media sharing, then multiple terminals can share images, but the interactive operations become very difficult and the cost increases
Solution Approach 1:
The patent extracts the core screen sharing function from the complex server network infrastructure. By using a USB interface to directly connect and share screens between terminals, the solution removes the unnecessary server network layer, achieving media sharing with significantly reduced complexity and cost while maintaining interactive operations
Solution Approach 2:
The patent introduces a USB interface as an intermediary device that enables direct communication between terminals for screen sharing. This intermediary simplifies the connection architecture compared to server networks, allowing multiple terminals to share images and perform interactive operations through a straightforward USB-based protocol
2Adaptability or versatility
If the number of data interfaces on terminals is limited, then the structure remains compact, but the number of connected terminals is limited
Solution Approach 1:
The patent makes the USB interface universal and multi-functional, allowing it to handle multiple terminal connections and various media sharing operations through a single interface type. This enables one terminal to connect with multiple other terminals simultaneously, increasing the number of connected terminals without adding more different types of interfaces
Solution Approach 2:
The patent transitions from a one-to-one interface connection model to a one-to-many connection model through the USB interface. By utilizing the data transmission capabilities of USB in another dimension (multiple devices through single interface), the solution overcomes the limitation of interface quantity while maintaining compact terminal structure
Data Source
AI summary
Provided is an interface extension device for screen sharing, including at least one video port; at least one multi-function port; a first sharing port; a second sharing port; a multi-function control unit connected to the at least one multi-function port and the first sharing port; a bridge unit connected to the multi-function control unit and the second sharing port; and an image control unit connected to the multi-function control unit and the at least one video port. The bridge unit controls a data transmission between the first sharing port and the second sharing port. A screen connected to the at least one video port can display an image in a mirroring or extending manner by a first sharing device connected to the first sharing port and a second sharing device connected to the second sharing port through the data transmission, and the first sharing device and the second sharing device can perform a synchronous operation on the image.