DisplayPort Interface Bandwidth Utilization via Dummy Data
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Solution Overview
Problem
Information handling systems face challenges in efficiently communicating video information due to high communication bandwidth requirements, particularly in displaying visual content, which can be inefficient and require additional connections.
Innovation Solution
The implementation of a DisplayPort digital display interface that formats information into primary, secondary, and tertiary streams, utilizing dummy data symbols to communicate control information and tertiary data within the available bandwidth, allowing for flexible and efficient communication of various types of display information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If video information is communicated using traditional display interfaces, then display functionality is achieved, but communication bandwidth is insufficient and additional connections are required
Solution Approach 1:
The patent combines multiple data streams (primary video data, secondary audio data, and tertiary control information) into a single communication channel by utilizing the dummy data symbols that are already present in the DisplayPort interface. This merging eliminates the need for separate connections for different types of data, thereby increasing effective bandwidth without adding physical connections.
Solution Approach 2:
The dummy data symbols in the DisplayPort interface are repurposed to carry multiple types of information (control information, tertiary data streams) in addition to their original function. This multi-functional use of existing bandwidth resources increases the effective communication capacity without requiring additional physical connections or changing the basic interface structure.
2Adaptability or versatility
If multiple separate connections are used to communicate different types of display information, then all information can be transmitted, but the system becomes more complex and requires additional connections
Solution Approach 1:
The patent merges primary video data, secondary audio data, and tertiary control information into a single integrated data stream that is transmitted through one DisplayPort connection. This consolidation maintains the ability to communicate all necessary information types while reducing the system from multiple separate connections to a single unified connection.
Solution Approach 2:
The patent implements a nested structure where control information and tertiary data streams are embedded within the existing DisplayPort data structure by utilizing the dummy data symbols. This nesting allows multiple layers of information to be contained within a single communication channel, reducing the need for separate connections while maintaining full information communication capability.
Data Source
AI summary
A method of providing information for display includes receiving primary, secondary, and tertiary information for display at an information handling system. The tertiary information is communicated to a display interface after the primary and secondary information during a time period otherwise assigned to the communication of dummy information. This allows more information to be communicated via a communication channel.