Data Transmission Device Using Virtual Networking for Screen Sharing
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Solution Overview
Problem
Existing screen sharing methods using wireless data transmission devices face limitations in bandwidth, resulting in low transmission rates and delays due to the use of Human Interface Device (HID) communication, which restricts the quality and processing speed of content on display devices.
Innovation Solution
A data transmission method and device that utilizes a universal interface and a wireless communication module to create a virtual network card, establishing a communication connection through bridging or network address translation, allowing the device to be recognized as a composite device, and enabling faster data transmission by using a network transmission channel instead of HID, thereby improving bandwidth and reducing delays.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If HID communication channel is used for data transmission, then device compatibility is improved, but transmission bandwidth is limited resulting in low transmission rate
Solution Approach 1:
The patent changes the communication channel parameter from HID to virtual network card, enabling the data transmission device to be recognized as a network device rather than a human interface device. This parameter change allows the system to utilize network protocols and achieves higher transmission bandwidth and rate while maintaining compatibility through standard network interfaces.
2Adaptability or versatility
If HID communication channel is used for data transmission, then device compatibility is improved, but transmission bandwidth is limited causing delays in content processing
Solution Approach 1:
The patent changes the communication channel parameter from HID to virtual network card, enabling the data transmission device to be recognized as a network device rather than a human interface device. This parameter change allows the system to utilize network protocols and achieves higher transmission bandwidth and rate while maintaining compatibility through standard network interfaces.
3Speed
If virtual network card is created and network transmission channel is used, then transmission bandwidth is improved, but device complexity increases
Solution Approach 1:
The patent introduces a virtual network card as an intermediary layer between the physical USB interface and the wireless communication module. This intermediary enables network protocol implementation without requiring changes to the physical hardware interface, allowing high-speed transmission while maintaining simple USB connectivity and backward compatibility.
Data Source
AI summary
The disclosure presents a data transmission method and device with a processor, a universal interface, and a wireless communication module. The method includes connecting the universal interface to a processing device. The processor creates a virtual network card and links the virtual network card to the wireless module via bridging or network address translation. The processor responds to request instructions from the processing device, retrieves screen transmission control and media data, and parses control data to determine control data to be forwarded. The processor controls the virtual network card to send the control data to the wireless communication module. The processor controls the wireless communication module to send the control data to the display device. Based on the forwarded control data, the processor decides whether to transmit the media data to the display device.