Display Firmware Updates Through Video-Interface Chains
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Solution Overview
Problem
Upgrading firmware on multiple daisy-chained monitors is cumbersome and time-consuming due to the need for individual USB connections for each monitor.
Innovation Solution
A method and display device that allows for a single host device to transmit firmware update packages through a video interface, establishing a target path for each display device in the chain to perform updates efficiently without manual USB connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If USB data cables are connected to each monitor individually for firmware updates, then firmware can be updated on each monitor, but the process becomes very cumbersome and time-consuming
Solution Approach 1:
The patent merges multiple separate USB update operations into a single consolidated update process. The host device transmits firmware update packages to multiple display devices simultaneously through the video interface network, combining what would otherwise require individual USB connections into one unified operation. This resolves the contradiction by maintaining reliable firmware updates while dramatically simplifying the operation.
Solution Approach 2:
The video interface is made multi-functional by enabling it to serve both its primary purpose (video signal transmission) and a secondary purpose (firmware update data transmission). The same video interface infrastructure that carries display signals is also used to carry firmware update packages, eliminating the need for separate USB cables. This universal usage resolves the contradiction by providing reliable updates through a single interface type.
2Reliability
If USB data cables are connected to each monitor individually for firmware updates, then firmware can be updated on each monitor, but the process becomes time-consuming
Solution Approach 1:
The host device prepares firmware update packages in advance and transmits them to multiple display devices simultaneously before individual updates are needed. The system proactively pushes update packages through the video interface network, eliminating the sequential time required for manual USB connections. This preliminary bulk transmission resolves the contradiction by ensuring reliable updates while minimizing the time loss through parallel processing.
Solution Approach 2:
The firmware update process maintains continuous data flow through the video interface without interruption or pausing between devices. The host device continuously transmits update packages through the daisy-chained video interface network, keeping the update operation flowing smoothly across all devices. This continuous action resolves the contradiction by providing reliable updates while eliminating the start-stop delays inherent in sequential USB connections.
3Reliability
If multiple USB data cables are used for firmware updates on daisy-chained monitors, then each monitor can be updated, but the device complexity increases
Solution Approach 1:
The patent extracts the firmware update function from the USB interface and relocates it to the video interface. By removing the need for separate USB cables and moving the update capability to the existing video interface, the system eliminates unnecessary connection complexity while preserving update reliability. This extraction resolves the contradiction by simplifying the physical connection structure.
Solution Approach 2:
The video interface acts as an intermediary that carries both video signals and firmware update data through a single connection path. Instead of requiring separate USB intermediaries for each device, the video interface mediates both functions, reducing the number of intermediate components needed. This intermediary role resolves the contradiction by maintaining reliable updates while reducing connection complexity.
Data Source
AI summary
A firmware update method includes, in response to obtaining, by a first display device through a video interface with a second display device, a target firmware update package provided by a host device, establishing a target path to a target component based on the target firmware update package, to enable the target component to complete a firmware update operation based on the target path. The second display device is directly connected in series to the host device through the video interface or through an interface other than the video interface, or the second display device is connected in series to the host device through at least one third display device.