Multi-Upstream USB Hub With Segmented Image Processing
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Solution Overview
Problem
Conventional USB hubs are limited to connecting with only one USB host, restricting the ability to simultaneously connect multiple USB hosts and independently transmit image data across multiple upstream ports.
Innovation Solution
A USB hub design featuring multiple USB upstream ports and image processing units, along with multiplexers, allows for independent transmission of image data across multiple USB hosts by providing multiple USB upstream ports and image processing units, enabling simultaneous connection to multiple USB hosts and independent data transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a USB hub has only one upstream port to connect to the USB host, then the device complexity is reduced, but the adaptability to connect multiple USB hosts concurrently is limited
Solution Approach 1:
The USB hub is segmented into multiple independent image processing units (first image processing unit, second image processing unit) and multiple USB upstream ports (first USB upstream port, second USB upstream port). Each upstream port can be independently coupled to different USB hosts, enabling simultaneous connection to multiple hosts while maintaining independent image data transmission paths.
Solution Approach 2:
The USB hub is designed with multi-functionality to serve multiple USB hosts concurrently. The hub can simultaneously receive image data from multiple different USB hosts through different upstream ports and transmit to different downstream devices, making it universally applicable in multi-host environments.
2Reliability
If image data from multiple USB upstream ports is transmitted through a shared path, then the device complexity is reduced, but the independence of image data transmission is compromised
Solution Approach 1:
The image data transmission path is segmented into independent channels. The first image processing unit is exclusively coupled to the first USB upstream port, and the second image processing unit is exclusively coupled to the second USB upstream port. This segmentation ensures that image data from different USB hosts can be transmitted independently without interference, maintaining data integrity and transmission reliability.
Data Source
AI summary
A USB hub, including multiple USB upstream ports, multiple downstream ports, multiple image processing units, a USB hub unit, a first multiplexer, and a second multiplexer, is provided. The USB upstream ports include a first USB upstream port and a second USB upstream port. The downstream ports include a first downstream port and a second downstream port. The image processing units include a first image processing unit and a second image processing unit. The first multiplexer is coupled to the first USB upstream port, the second USB upstream port, the first image processing unit, the second image processing unit, and the USB hub unit. The second multiplexer is coupled to the first image processing unit, the second image processing unit, the USB hub unit, the first downstream port, and the second downstream port.