Vehicle Multi-Display Overlay Sharing Using Instance Copying
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Solution Overview
Problem
Existing signal processing devices for vehicles face complexity in displaying multiple objects during screen sharing, especially when the number of virtual machines increases, leading to difficulties in rapid and accurate object display.
Innovation Solution
A signal processing device with a processor configured to display a first image with an overlay on a first display, transmit the image by screen sharing, and display a mirrored image on a second display. The processor generates a second overlay different from the first overlay, transmits its information by instance copying, and displays it on top of the first or second image.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If screen sharing is implemented across multiple displays with multiple overlays, then information sharing capability is improved, but signal processing complexity increases
Solution Approach 1:
The patent applies instance copying to transmit overlay information between virtual machines. Instead of processing complete overlay images through complex signal processing, the system copies overlay information instances between VMs, significantly reducing processing complexity while maintaining screen sharing functionality across multiple displays
Solution Approach 2:
The patent segments the display system into multiple virtual machines, each responsible for specific displays and overlays. This segmentation allows independent processing of overlay information in each VM while enabling efficient information sharing through instance copying, reducing overall system complexity
2Area of stationary object
If the number of virtual machines is increased to support more displays, then display coverage is improved, but processing speed decreases
Solution Approach 1:
The patent uses instance copying to rapidly transmit overlay information between virtual machines. This copying mechanism enables fast information transfer that scales with the number of VMs, maintaining high display speeds even as display coverage expands across multiple screens
Solution Approach 2:
The system performs preliminary actions by pre-establishing instance copying channels between virtual machines before overlay information needs to be shared. This preparation enables rapid object display when multiple VMs are involved, preventing processing bottlenecks
3Loss of information
If multiple overlays are displayed during screen sharing, then information completeness is improved, but processing time increases
Solution Approach 1:
The patent transmits overlay information through instance copying rather than processing complete overlay images. This approach maintains information completeness for multiple overlays while dramatically reducing processing time by copying only the essential overlay data between virtual machines
Solution Approach 2:
The system extracts only the necessary overlay information from complete images for transmission between virtual machines. By taking out just the overlay data rather than processing entire images, the system maintains information completeness while minimizing processing time
Data Source
AI summary
The present disclosure relates to a signal processing device and a vehicle display apparatus including the same. The signal processing device according to an embodiment of the present disclosure includes a processor configured to perform signal processing for displays located in a vehicle, wherein the processor is configured to: display a first image including a first overlay on a first display, transmit the first image by screen sharing, and display a second image of a mirrored image corresponding to the first image on a second display; generate a second overlay different from the first overlay while displaying the first image and the second image; transmit information related to the second overlay by instance copying; and display a second overlay generated based on the information related to the second overlay on top of the first image or the second image. Accordingly, objects may be displayed rapidly and accurately by instance copying during screen sharing.