USB Hub Dynamic Port Switching for Multi-Connector Adaptability
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Solution Overview
Problem
Conventional USB hubs are limited by the requirement for standard type-A connectors, restricting flexibility in connecting different port types to a host unit, as they cannot utilize non-standard type-A connectors even if one end is connected, limiting the hub's utilization with various devices.
Innovation Solution
A USB hub with dynamic connection ports, a USB controller, upstream and downstream control circuits, and a switch module that detects power levels to determine port types and dynamically switches ports to improve compatibility with different devices, enabling connection of standard type-A and type-C ports, and disabling inactive ports to prevent data transmission when power levels exceed a predetermined threshold.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the USB hub uses standard type-A connectors only, then the connection is simple and reliable, but the adaptability to different port types is limited
Solution Approach 1:
The USB hub is designed with multiple upstream connection ports supporting different connector types (type-A, type-C, and other interfaces). This allows a single hub device to universally connect to various host units with different port types, eliminating the need for multiple specialized hubs and achieving multi-functionality in one device.
Solution Approach 2:
The hub incorporates a USB controller that dynamically detects the connector type and power level of the connected host unit, then automatically configures the appropriate upstream connection port and communication protocol. This dynamic adaptation enables the hub to seamlessly switch between different port types without manual intervention, resolving the contradiction between versatility and complexity.
2Adaptability or versatility
If the hub supports multiple connector types simultaneously, then the versatility improves, but the device complexity increases
Solution Approach 1:
The USB controller implements dynamic detection and configuration mechanisms that automatically identify the connected host unit's port type and power level. Based on this detection, the controller dynamically activates only the necessary connection ports and communication protocols, rather than maintaining all possible configurations simultaneously. This reduces the effective complexity while preserving full versatility.
Solution Approach 2:
The hub performs self-configuration through automatic detection of connector types and power levels. The USB controller autonomously determines the appropriate upstream connection port to use and configures the downstream connection ports accordingly, without requiring manual setup or complex external control systems. This self-service capability simplifies the overall device architecture while maintaining high adaptability.
3Reliability
If the hub dynamically switches ports based on power level detection, then the data transmission reliability improves, but the control complexity increases
Solution Approach 1:
The USB controller continuously monitors the power level of the connected host unit through feedback from the connection ports. Based on this real-time feedback, the controller automatically switches between different upstream connection ports to optimize data transmission reliability. The feedback mechanism enables adaptive port selection without requiring complex manual control systems.
Solution Approach 2:
The hub's USB controller autonomously performs power level detection and port switching operations without external intervention. The control circuit automatically configures the appropriate upstream and downstream connection ports based on detected conditions, eliminating the need for complex external control systems or manual configuration, thereby improving reliability while keeping control complexity manageable.
Data Source
AI summary
A universal serial bus (USB) hub for connecting different port types and method thereof are provided. In one embodiment, USB controller detects the power level of each dynamic port to determine whether one of the dynamic ports is connected to the host device wherein the connected dynamic port is defined as upstream port. The disconnected dynamic port of the dynamic ports is defined as downstream port to be connected to the peripheral device. In another embodiment, the USB controller selectively disables the disconnected dynamic port of the dynamic ports. The present invention improves the application flexibility of connecting wire between the hub and the host device.