Dual-System Writing Delay Elimination via Direct Rendering
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Dual-system devices experience writing delays due to the delay in transferring touch data and decoding HDMI format, causing discrepancies in handwriting between internal and external systems when using external channel interfaces.
Innovation Solution
A method where the first system, with faster rendering speed, acquires and renders data from a target storage area generated by the second system, allowing for real-time display without encoding and decoding the frame, thus reducing delay and ensuring consistent handwriting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the second system (external channel interface) processes and displays handwriting data, then the system can support multiple operating systems, but writing delay occurs due to HDMI encoding and decoding processes
Solution Approach 1:
The patent segments the handwriting processing workflow into two distinct parts: the first system (Android TV) handles high-speed rendering and display of handwriting data, while the second system (external channel interface) handles touch data reception and data generation. This segmentation allows each system to operate in its optimal performance zone, eliminating the bottleneck caused by HDMI encoding/decoding in the display path.
Solution Approach 2:
The patent introduces a target storage area as an intermediary mechanism between the two systems. The first system writes rendered handwriting data to this storage area, and the second system reads from it, enabling asynchronous data exchange without requiring real-time encoding/decoding through HDMI interfaces.
2Ease of operation
If the first system renders handwriting data through HDMI interface, then the handwriting can be displayed on external systems, but the encoding and decoding process causes delay
Solution Approach 1:
The patent replaces the mechanical HDMI encoding/decoding process with a direct data storage and retrieval mechanism. Instead of converting handwriting data to HDMI format and back, the system uses a shared target storage area that both systems can access directly, eliminating the need for format conversion and reducing display delay.
3Productivity
If both systems draw handwriting simultaneously using their respective APIs, then each system can maintain its own rendering performance, but the handwritings differ between systems
Solution Approach 1:
The patent merges the rendering function into a single system (the first system/Android TV) while maintaining separate touch data processing in the second system. By having one system responsible for all handwriting rendering and storing results in a shared target storage area, the patent ensures consistent handwriting output across both systems while preserving the rendering speed advantages of the first system.
Data Source
AI summary
A dual-system device and writing method and apparatus thereof, and interactive intelligent tablet includes a first system and a second system receiving touch data, where the data rendering speed of the first system is faster than that of the second system, and the data processing speed of the second system is faster than that of the first system; the first system acquiring data to be rendered from a target storage area, where the data to be rendered is generated by the second system according to the touch data and stored in the target storage area; the first system rendering the data to be rendered to obtain handwriting data to be displayed, and transmitting the handwriting data to be displayed to a display screen of the dual-system device for display. The disclosure solves the technical problem of writing delay of an external system when using dual-system to perform writing.