USB-DisplayPort Dual-Mode Transceiver Circuit
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Solution Overview
Problem
Existing devices lack an efficient system for communicating uncompressed high definition multimedia data between devices with different communication protocols, such as USB and DisplayPort, due to size and upgradability limitations.
Innovation Solution
A system and method for transferring data between a USB port and a media port of a second device, using a USB connector, a media connector, and an electrical cable with a circuit to encode and decode side-band communication signals, allowing for dual-mode operation between USB and media standards.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a device employs only USB connectors for data communication, then the device maintains simplicity in connector design and manufacturing, but the device cannot efficiently transfer uncompressed high definition multimedia data to devices requiring DisplayPort protocol
Solution Approach 1:
The USB connector is designed to perform multiple functions: it serves as both a standard USB data communication interface and a DisplayPort interface when equipped with the appropriate circuitry. The same physical connector and cable can switch between USB protocol and DisplayPort protocol operations, eliminating the need for separate connectors for each protocol.
Solution Approach 2:
A dual-mode transceiver circuit acts as an intermediary between the USB connector and the DisplayPort protocol requirements. This transceiver can operate in either USB mode or DisplayPort mode, translating and adapting signals between the two protocols as needed, thereby enabling protocol conversion without additional physical connectors.
2Adaptability or versatility
If a device includes both USB and DisplayPort connectors, then the device can communicate with devices using either protocol, but the device increases in size and manufacturing complexity
Solution Approach 1:
Instead of manufacturing separate USB and DisplayPort connectors, the device uses a single USB connector that can be configured for either protocol. The dual-mode transceiver circuit allows the same hardware to be manufactured and assembled once, then programmed or configured to support both USB and DisplayPort protocols, reducing manufacturing steps and assembly complexity.
Solution Approach 2:
The functionality of separate USB and DisplayPort connectors is merged into a single USB connector with dual-mode capability. The physical connector, cable, and transceiver are combined into one integrated system that can operate in either protocol mode, reducing the total number of components and simplifying the manufacturing process.
3Productivity
If uncompressed high definition multimedia data is transferred through USB protocol, then the device can use existing USB infrastructure, but the USB protocol may not provide sufficient bandwidth for high definition multimedia
Solution Approach 1:
The system dynamically changes operational parameters by switching the transceiver between USB mode and DisplayPort mode based on the requirements of the connected device. When high bandwidth is needed for uncompressed HD multimedia, the system transitions to DisplayPort protocol which provides higher bandwidth capabilities, while still using the same physical USB connector infrastructure.
Data Source
AI summary
A system and corresponding method for transferring data via an interface assembly is provided. The data is transferred between a USB port of a first device and a media port of a second device. Uncompressed high definition media data may be received from the USB port. The received uncompressed high definition media data may be supplied to a media connector in accordance with a first media standard, such that the supplied data can be transmitted in accordance with the first media standard via the media connector to the media port of the second device. The uncompressed high definition media data may include multimedia data and side-band communication data. A single signal may be encoded and decoded in accordance with a protocol that enables the single signal to communicate all side-band communications to and from the source device via a single pin of a USB connector.