Touch Display Frame Reconfiguration for Rapid Pen Pairing
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Solution Overview
Problem
Touch display devices face limitations in quickly recognizing and pairing with new pens, leading to inefficiencies in pen input processing due to slow search and pairing times.
Innovation Solution
A touch display device with a touch sensing circuit that adjusts touch time periods and signal types based on the number of paired pens, using beacon signals and different pen signals to facilitate high-speed pen search and pairing, and reconfiguring the frame to optimize pen mode flexibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the touch sensing circuit uses a fixed frame structure with standard touch time periods, then the device structure is simple and easy to implement, but the pen search and pairing speed is slow
Solution Approach 1:
The patent applies dynamics by making the frame structure adjustable rather than fixed. The touch sensing circuit can dynamically change the number and types of touch time periods in a frame based on the number of paired pens. When few pens are paired, the frame includes more search-type touch time periods for rapid pen detection. When many pens are paired, the frame transitions to include more data collection time periods. This dynamic reconfiguration resolves the contradiction by enabling fast pen pairing without permanently complicating the frame structure.
Solution Approach 2:
The patent changes parameters of the frame structure, specifically the number of touch time periods and their types, based on operational conditions (number of paired pens). The system can adjust parameters such as converting between first-type pen signals and second-type pen signals, and changing the count of touch time periods from 2 to 16 or vice versa. These parameter changes enable the system to optimize pen search speed without permanent structural complexity.
2Measurement precision
If the touch sensing circuit applies different types of pen signals to all touch time periods, then the pen detection capability is enhanced, but the signal processing complexity increases
Solution Approach 1:
The patent applies local quality by using different types of pen signals (first-type and second-type) in different touch time periods based on local needs. Not all touch time periods use the same signal type - instead, the system selectively applies first-type pen signals for search operations and second-type pen signals for data collection, depending on the specific touch time period and operational context. This resolves the contradiction by enhancing pen detection where needed without uniformly increasing signal processing complexity across the entire system.
Solution Approach 2:
The patent segments the touch time periods into different types (first-type and second-type pen signal periods) with distinct functions. This segmentation allows the system to apply appropriate signal types to appropriate time periods, improving pen detection capability in search phases while maintaining simpler signal processing in data collection phases, thus resolving the contradiction between detection capability and processing complexity.
3Adaptability or versatility
If the system maintains a fixed number of touch time periods in each frame, then the frame structure is stable and simple, but the flexibility to adapt to different pen pairing scenarios is reduced
Solution Approach 1:
The patent implements dynamics by enabling the frame structure to adapt its number of touch time periods based on the number of paired pens. The system can reconfigure frames to include 2, 4, 8, or 16 touch time periods depending on operational needs. This dynamic adaptability resolves the contradiction by providing pen mode flexibility without requiring permanent structural complexity - the system only adopts complex configurations when needed.
Solution Approach 2:
The patent creates a universal frame structure that can serve multiple functions by adjusting the number of touch time periods. The same basic frame template can accommodate different pen pairing scenarios (single pen, multiple pens, search mode, data collection mode) by simply reconfiguring the number and types of touch time periods. This multi-functionality resolves the contradiction between adaptability and complexity by using a single versatile framework rather than multiple specialized structures.
Data Source
AI summary
Discussed is a touch display device and a touch sensing method. More particularly, according to the number of pens that have been paired, the frame can be reconfigured by changing the type of all or part of the multiple touch time periods in the frame, and it is possible to provide high-speed pen search and pen pairing by designing a highly scalable pen protocol to flexibly change the pen mode.