Wireless USB Interface Extender for Dual-Mode Projection Links
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Solution Overview
Problem
Existing conference room setups with wired microphones, speakers, and cameras are inconvenient due to restricted placement and require careful consideration of location and distance, limiting flexibility and meeting efficiency.
Innovation Solution
A wireless USB interface extender system with dual-mode operation (station and access point) enables flexible arrangement of audio/video devices by wirelessly connecting to a conversion device and other extenders, processing signals, and communicating with an operating system using standard USB drivers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If wired connections are used for microphones, speakers, and cameras, then connection stability is improved, but device arrangement flexibility deteriorates
Solution Approach 1:
The patent replaces the mechanical wired connection system with a wireless communication system. The wireless USB interface extender uses wireless transmission units to communicate with host computers and USB devices, eliminating the need for physical cable connections while maintaining stable communication through wireless protocols
Solution Approach 2:
The wireless USB interface extender acts as an intermediary device between USB devices and the host computer. It provides a wireless bridge that allows USB devices to connect to the host without direct wired connections, enabling flexible arrangement while maintaining stable communication through the intermediary wireless interface
2Reliability
If wired connections are used for audio/video devices, then signal transmission stability is improved, but location and distance constraints deteriorate
Solution Approach 1:
The patent substitutes the mechanical cable-based signal transmission system with a wireless signal transmission system. The wireless transmission units transmit audio/video signals wirelessly between devices and the host, eliminating cable constraints while maintaining signal transmission stability through wireless protocols
Solution Approach 2:
The patent transitions from one-dimensional cable-based connections to three-dimensional wireless spatial communication. Devices can be positioned freely in any location and distance from the host without being constrained by cable length or routing, enabling flexible arrangement while maintaining stable signal transmission through wireless channels
3Adaptability or versatility
If wireless transmission is used for USB devices, then device arrangement flexibility is improved, but connection stability deteriorates
Solution Approach 1:
The wireless USB interface extender serves as an intermediary that establishes stable wireless connections between USB devices and the host computer. It manages the wireless communication protocol to ensure connection stability while maintaining the flexibility of wireless device arrangement
Solution Approach 2:
The patent replaces the mechanical wired connection system with a wireless communication system that maintains stability through protocol-based error correction, authentication, and data transmission management, achieving both flexibility and reliability
4Adaptability or versatility
If multiple wireless transmission modes are implemented, then system versatility is improved, but device complexity deteriorates
Solution Approach 1:
The wireless USB interface extender integrates multiple transmission modes (station mode and access point mode) into a single device that can perform multiple functions. The same wireless transmission units support different operational modes, allowing the device to adapt to various connection scenarios without requiring separate dedicated hardware for each mode
Data Source
AI summary
A wireless USB interface extender connected wirelessly during use in a wireless projection system is provided. When operating in a station mode, the wireless USB interface extender communicates with a conversion device by using a first wireless transmission unit. The conversion device is coupled to a display device. When operating in an access point mode, the wireless USB interface extender communicates with at least one other wireless USB interface extender, each being coupled to at least one USB device, by using a second wireless transmission unit. When the wireless USB interface extender operates in the station mode and the access point mode at the same time, the control unit processes a to-be-displayed picture and a signal corresponding to at least one of the at least one USB device to generate an integrated signal, transmitted to the display device through the conversion device for displaying on the display device.