USB-C Connector Dual-Role Switching via UTMI Controller
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Solution Overview
Problem
Existing electronic devices with USB connectors lack efficient mechanisms to dynamically switch between host and peripheral roles, limiting their operational flexibility and data transfer speeds.
Innovation Solution
An electronic device with a USB-C connector incorporates a controller configuration that generates a binary signal to select between host and peripheral modes, utilizing a UTMI switch controller to manage the connector operation, enabling dual-role device functionality and efficient data transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a USB connector is configured with fixed host or peripheral role, then the device structure is simple, but the operational flexibility is limited
Solution Approach 1:
The patent implements dynamic role switching between host and peripheral modes through a UTMI switch controller that responds to connection events. The system transitions from static role assignment to dynamic role selection based on real-time connection status, allowing the USB connector to adapt its functionality during operation without physical reconfiguration
Solution Approach 2:
The USB connector is designed to perform multiple roles (host and peripheral) through a single unified interface. The UTMI switch controller enables the same physical connector to universally support both host and peripheral functionalities, eliminating the need for separate dedicated connectors for each role and enhancing operational flexibility
2Speed
If a USB connector uses traditional role assignment, then the device complexity is low, but the data transfer speed is limited
Solution Approach 1:
The system dynamically selects between host and peripheral modes based on connection events, enabling optimal data transfer speeds by activating the appropriate controller configuration. The UTMI switch controller responds to connection status changes and switches between high-speed host mode and peripheral mode, ensuring maximum data transfer performance for each operational scenario
Solution Approach 2:
The patent changes operational parameters (host/peripheral mode) based on connection events to optimize data transfer speed. The UTMI switch controller modifies the electrical and logical parameters of the USB interface dynamically, switching between different resistance values, voltage levels, and control mechanisms appropriate for each role to achieve higher transfer rates
3Productivity
If a USB connector implements dual-role functionality, then the operational efficiency is enhanced, but the signal management complexity increases
Solution Approach 1:
The UTMI switch controller acts as an intermediary between the USB connector and the dual-role controller, managing signal routing and role selection. This intermediary component simplifies signal management by centralizing the control logic for host/peripheral switching, preventing signal conflicts, and ensuring proper protocol handling for each operational mode
Solution Approach 2:
The system implements feedback mechanisms where the UTMI switch controller monitors connection status and role assignment signals, then adjusts its operation accordingly. The controller receives feedback about the current operational state and modifies signal routing and electrical parameters to maintain optimal performance and prevent conflicts during role transitions
Data Source
AI summary
An electronic device includes a connector (e.g., a USB connector), a first element configured to operate the connector as a host device connector, a second element configured to operate the connector as a peripheral device connector, and a third element configured to generate a first signal upon connection of the connector. The first signal is indicative of whether the device is to operate as a host device or a peripheral device.