Display Updating via USB Hub Network
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Solution Overview
Problem
Conventional display updating systems are costly, inconvenient, and time-consuming due to the need for an in-system programming (ISP) board and the ability to update only one display at a time.
Innovation Solution
A display updating system that utilizes a USB interface to transmit display program codes directly between an electronic device and a display, eliminating the need for an ISP board and enabling multiple displays to form a network for simultaneous firmware updates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an ISP board is used to update display firmware, then the firmware can be updated, but the system cost increases
Solution Approach 1:
The patent extracts and removes the ISP board from the system by implementing firmware update capability directly within the display control circuit. The display control circuit now includes an embedded USB interface and update logic, eliminating the need for the separate ISP board while maintaining firmware update functionality.
Solution Approach 2:
The USB interface in the display control circuit serves multiple functions: it acts as both a data transmission interface for video signals and a firmware update interface. This multi-functionality eliminates the need for dedicated ISP board hardware, reducing system cost and complexity.
2Reliability
If an ISP board is used for firmware updates, then updates can be performed, but the display cannot operate normally after update without removing the ISP board
Solution Approach 1:
The ISP board is completely removed from the system architecture. Instead, the firmware update capability is extracted and integrated directly into the display control circuit, allowing the display to operate normally without any external update hardware present after the update process.
Solution Approach 2:
The display control circuit performs firmware updates autonomously using its own embedded USB interface and update logic. The system updates itself without requiring external ISP board hardware to remain connected, enabling self-service firmware updates that don't interfere with normal display operation.
3Reliability
If the conventional system updates one display at a time, then each display receives updates, but the process is time-consuming when updating multiple displays
Solution Approach 1:
The USB interface in the display control circuit serves dual purposes: video signal transmission and firmware update data transfer. This universal interface allows the updating system to communicate with multiple displays simultaneously through USB hub architecture, enabling parallel firmware updates across multiple displays without requiring separate ISP boards for each device.
Solution Approach 2:
The patent merges the video interface and firmware update interface into a single USB connection. This consolidation allows the updating system to manage multiple displays through a unified USB hub interface, enabling simultaneous firmware updates to multiple displays and significantly improving update productivity compared to sequential updates.
Data Source
AI summary
A display updating system and a display are provided. The display updating system includes a display and an electronic device. The display includes a display panel, a USB hub, and a display control circuit. The USB hub is configured to receive a plurality of display program codes through a USB interface. The display control circuit is configured to receive the display program codes from the USB hub and store the display program codes. The electronic device is connected to the display through the USB interface and includes a memory, a USB driver circuit, and a calculation circuit. The memory is configured to store the display program codes. The USB driver circuit is connected to the USB hub of the display through the USB interface. The calculation circuit is configured to control the USB driver circuit to transmit the display program codes through the USB interface.