USB Switch Unit for High-Resolution Video Transmission
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Solution Overview
Problem
Portable devices with limited screen sizes struggle to efficiently transmit high-resolution video content, as existing USB interfaces like USB 3.0 and USB Type C are unable to meet the required data transmission speeds for resolutions such as QFHD and UHD, leading to delayed data transmission.
Innovation Solution
An electronic device with a USB connection unit, a switch unit, and a control unit that recognizes an external display device and switches the data reception channel to function as a data transmission channel, effectively doubling the data transmission speed by utilizing both channels for transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If USB 3.0 or USB Type C interface is used for data transmission, then compatibility and ease of connection are improved, but data transmission speed is insufficient for high-resolution video content
Solution Approach 1:
The patent implements dynamic channel allocation where the USB interface can switch between standard bidirectional mode and unidirectional transmission mode. When high-resolution video content needs to be transmitted, the interface dynamically allocates both channels (original transmission channel and reception channel) for unidirectional data output, effectively doubling the transmission speed while maintaining USB compatibility
Solution Approach 2:
The patent changes the operational parameters of the USB interface by switching the reception channel's function from receiving data to transmitting data. This parameter change allows the interface to operate in an enhanced transmission mode where both channels are dedicated to data output, resolving the speed limitation while preserving USB connection compatibility
2Speed
If dedicated transmission channels are used for high-resolution video content, then data transmission speed is improved, but device complexity increases
Solution Approach 1:
The patent makes the USB interface multi-functional by enabling the reception channel to serve dual purposes: receiving data in standard mode and transmitting data in enhanced mode. This universal design allows the same physical interface to achieve both compatibility and high-speed transmission without requiring separate dedicated transmission channels, thereby avoiding increased device complexity
Solution Approach 2:
The patent implements dynamic channel allocation where the USB interface can switch between standard bidirectional mode and unidirectional transmission mode. When high-resolution video content needs to be transmitted, the interface dynamically allocates both channels (original transmission channel and reception channel) for unidirectional data output, effectively doubling the transmission speed while maintaining USB compatibility
Data Source
AI summary
A method for improving a data transmission speed and an electronic device implementing the same are provided. The electronic device includes a USB connection unit configured to be connectable to an external electronic device and including designated data reception channels and data transmission channels, a switch unit configured to switch an electrical connection between the data reception channels and data transmission channels, and a control unit configured to confirm device attribute information of the external electronic device that is connected through the USB connection unit and to control the switch unit to switch the electrical connection so that at least one data reception channel functions as a data transmission channel if the connected external electronic device is a display device.