DisplayPort Multi-Stream Firmware Upgrade System
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Solution Overview
Problem
Current firmware upgrade methods for displays are inefficient and inconvenient, as they can only upgrade one display at a time, requiring special hardware and being labor-intensive for managing multiple devices.
Innovation Solution
A firmware upgrade method and system utilizing the multi-stream transport mode of the DisplayPort interface, allowing multiple displays connected in a daisy chain topology to receive firmware updates through a host's communication module, with a multi-stream processing module determining the correct display and transmitting upgrade commands and data, enabling simultaneous firmware upgrades across multiple displays.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a special hardware adapter board is used to transmit firmware data, then firmware can be upgraded, but the device cannot work properly during upgrade and only one display can be upgraded at a time
Solution Approach 1:
The patent segments the firmware upgrade process into multiple independent streams that can be transmitted simultaneously through different DisplayPort links. Each display device receives firmware independently through its own link from the source device, allowing parallel upgrades without interfering with each other's operation.
Solution Approach 2:
The patent makes the DisplayPort interface universal by using it for both normal display data transmission and firmware upgrade transmission. The same interface serves dual purposes: conveying video signals during normal operation and transmitting firmware packets during upgrades, eliminating the need for special hardware adapters.
2Productivity
If a video transmission interface is used to transmit firmware, then firmware upgrade is possible, but only one display device can be upgraded at a time requiring sequential operation
Solution Approach 1:
The patent divides the firmware transmission into multiple independent streams that travel through different DisplayPort links simultaneously. Each link carries firmware for a specific display device, enabling parallel transmission and eliminating sequential bottlenecks.
Solution Approach 2:
The patent enables continuous firmware upgrades across multiple displays by maintaining independent transmission streams that operate simultaneously without interruption. The source device continuously transmits firmware packets through multiple links, and each display continuously receives and processes firmware without waiting for others to complete.
3Productivity
If multiple displays are managed separately for firmware upgrades, then each display receives proper upgrades, but the process becomes labor-intensive and inefficient
Solution Approach 1:
The patent creates a universal firmware distribution system where a single source device can manage multiple displays through the DisplayPort interface. The same interface and protocol handle both video transmission and firmware distribution, providing a unified management approach that reduces operational complexity.
Solution Approach 2:
The source device acts as an intermediary that manages firmware distribution to multiple displays simultaneously. It receives firmware packages, identifies target displays, and routes appropriate firmware through the appropriate DisplayPort links, automating the management process and eliminating manual intervention.
Data Source
AI summary
A firmware upgrade method and a firmware upgrade system based on a multi-stream transmission mode of a DisplayPort interface are provided. The firmware upgrade method includes: configuring a host to obtain firmware information of the displays through a DisplayPort auxiliary channel, and select a target display for firmware upgrade; and executing a firmware upgrade process including: configure the host to send a upgrade start command and firmware upgrade data to the target display; and configuring each display to: determine whether the upgrade start command and the firmware upgrade data reach the target display, and if not, send the upgrade start command and the firmware upgrade data to the next display, if so, execute a firmware upgrade preparation process according to the upgrade start command, and write the firmware upgrade data into the firmware storage device of the target display.