Boot Display Control for Immediate Backup Video
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Solution Overview
Problem
Current OS-based automotive electronics require a long time to load the operating system, which delays the display of vehicle backing video, necessitating a quick solution to reduce wait times without increasing costs.
Innovation Solution
A processor chip with a display controller that loads a leading program and display control program first, enabling vehicle backing video display if the indicator is active, and loads the OS program only when the indicator is not active, thereby avoiding the need for an extra display decoder chip.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If an extra display decoder chip is added to control screen display and video output, then the vehicle backing video can be displayed immediately without waiting for OS loading, but the system cost increases due to requiring an additional chip
Solution Approach 1:
The patent applies preliminary action by loading and executing a display control program before the operating system is fully loaded. The processor chip loads a minimal display control program that enables the display controller to immediately process and output video signals when the vehicle backing indicator is activated, without waiting for the complete OS loading process. This allows the vehicle backing video to be displayed within 3 seconds of activation, meeting the automotive industry response time requirement while avoiding the need for an extra decoder chip.
2Reliability
If the OS program is completely loaded before displaying vehicle backing video, then the system operates with full functionality, but the display response time exceeds the 3-second requirement
Solution Approach 1:
The patent applies segmentation by dividing the program loading process into two distinct stages: a display control program loaded and executed immediately for critical display functions, and the complete operating system program loaded subsequently for full system functionality. The processor chip first loads the minimal display control program that enables immediate video output, then continues loading the full OS in the background. This segmentation allows the system to meet the 3-second response time requirement while maintaining eventual full functionality and system stability.
Data Source
AI summary
Booting display control method and associated apparatus are disclosed. The apparatus includes a processor chip, wherein the processor chip includes a processor and a display. After the processor chip is activated, the processor loads the leading program and displays control program; the processor detects whether a vehicle backing indicator indicates vehicle backing; when the vehicle backing indicator indicates vehicle backing, the processor controls the display controller to realize the vehicle backing video display function through the display control program; and when the vehicle backing indicator does not indicate vehicle backing, the processor loads the operating system program. Through the method, the present invention is capable of displaying vehicle backing video display when loading the operating system program.