Transport-Agnostic Display Protocol for Mixed Isochronous Transports
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Solution Overview
Problem
Current video streaming technologies are limited by transport-specific nuances, leading to efficiency losses and user experience issues, as they are designed for specific physical and link layers, and do not support diverse transport mechanisms like isochronous and non-isochronous transports simultaneously.
Innovation Solution
A transport-agnostic display (TAD) protocol that enables streaming and control over a range of physical transports, including isochronous and non-isochronous transports, by using a packetized protocol that adapts to different transport technologies without altering the video source ecosystem, allowing for mixed topologies and conversion between various display interfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If video streaming solutions focus on a link layer closely tied to the physical layer of the transport (e.g., DisplayPort only works on DP transport, HDMI only works on HDMI transport), then the implementation is simple and transport-specific, but the adaptability to diverse transport mechanisms is poor
Solution Approach 1:
The patent introduces a transport-agnostic display protocol as an intermediary layer between the video source ecosystem and diverse transport mechanisms. This protocol acts as a mediator that translates video data into a format suitable for transmission over various transports (isochronous, non-isochronous, wired, wireless) without requiring changes to the source ecosystem, thereby resolving the contradiction between adaptability and complexity
Solution Approach 2:
The patent creates a universal link layer protocol that can operate across multiple transport types simultaneously. The transport-agnostic display protocol is designed to be multi-functional, supporting both isochronous and non-isochronous transports, as well as wired and wireless connections, through a single unified interface that maintains compatibility with legacy video sources
2Adaptability or versatility
If IP-based abstraction (e.g., Miracast) is used to enable transport independence, then adaptability to networking transports is improved, but support for isochronous transports is lost
Solution Approach 1:
The patent changes the fundamental parameter of the protocol design from IP-based abstraction to a transport-agnostic approach that preserves timing-critical parameters for isochronous transports. The protocol dynamically adjusts its operation mode based on the transport type, maintaining deterministic timing behavior for isochronous connections while still supporting flexible networking transports, thus resolving the contradiction between versatility and reliability
3Productivity
If transport-specific definitions are used for each display interface, then optimization for specific transports is achieved, but ecosystem complexity and conversion requirements increase
Solution Approach 1:
The patent extracts the transport-specific nuances from the core video streaming functionality by creating a separate transport adaptation layer. The transport-agnostic display protocol removes transport-specific dependencies from the video source ecosystem, allowing efficient streaming to be achieved through transport-optimized adaptations rather than through complex multi-protocol support in the source devices
Data Source
AI summary
In some examples, a transport agnostic source includes a streaming device to stream video on diverse transport topologies including isochronous and non-isochronous transports. In some examples, a transport agnostic sink includes a receiving device to receive streamed video from diverse transport topologies including isochronous and non-isochronous transports.