Peripheral Device Connector USB Interface Recognition
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Users face inconvenience when connecting peripheral devices to host devices via USB 3.0 interfaces, as the host device may falsely recognize the device as USB 2.0 due to incomplete electrical connections, requiring users to disconnect and reconnect the USB 3.0 cable to establish the correct logical connection for higher-speed data communication.
Innovation Solution
A peripheral device with a single connector capable of connecting to both USB 2.0 and USB 3.0 interfaces, equipped with a controller that performs an initial connection process and a reconnection process to ensure logical connections are made without breaking the physical connection, allowing for data communication via the desired interface with higher data transmission rates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single connector is used for both USB 2.0 and USB 3.0 interfaces, then the device can be connected to both interface types, but the host device may falsely recognize the peripheral device as USB 2.0 due to incomplete electrical connection
Solution Approach 1:
The connector is designed with USB 3.0 contact terminals positioned to make electrical contact before USB 2.0 contact terminals during the insertion process. This preliminary action ensures that the high-speed USB 3.0 interface is established first, preventing the host device from falsely recognizing the peripheral device as USB 2.0 before the electrical connection is complete.
2Productivity
If the host device falsely recognizes the peripheral device as USB 2.0, then the initial logical connection is established, but the correct logical connection for USB 3.0 cannot be made without disconnecting and reconnecting
Solution Approach 1:
The connector geometry is designed so that USB 3.0 electrical contacts are established before USB 2.0 contacts during insertion. This preliminary establishment of the correct interface type allows the host device to perform the initial logical connection process with the correct interface specifications, eliminating the need for user-initiated disconnection and reconnection to achieve USB 3.0 connectivity.
3Reliability
If USB 3.0 contact terminals are arranged to contact first, then the correct interface is recognized, but the connector design becomes more complex
Solution Approach 1:
The connector employs an asymmetric arrangement where USB 3.0 contact terminals are positioned to engage and establish electrical contact before USB 2.0 contact terminals during the insertion process. This asymmetric design, achieved through specific positioning of contact terminals at different depths or angles, ensures reliable USB 3.0 interface recognition while maintaining a relatively simple overall connector structure that integrates both interface types.
Data Source
AI summary
A peripheral device of the invention is capable of data communication with a host device via one of a first-type interface and a second-type interface having different data communication-related specifications. The peripheral device has a single connector for making electric connection selectively with a first-type connector or a second-type connector. The peripheral device also has a controller for performing an initial connection process that makes a logical connection between the peripheral device and the host device via the first-type interface or the second-type interface. While the physical connection is maintained, the controller breaks the logical connection established by the initial connection process and subsequently makes another logical connection between the peripheral device and the host device.