Touch System Timestamp Synchronization for Side Information
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Solution Overview
Problem
The existing touch system technologies face challenges in efficiently transmitting large amounts of side information, such as pen pressure and battery status, through downlink signals, leading to synchronization issues and increased time requirements.
Innovation Solution
Incorporating a time stamp in both uplink and downlink signals to synchronize side information transmission, allowing the touch device to accurately match side information with corresponding downlink signals and improve data reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If all side information is transmitted only through the downlink signal, then the information completeness is improved, but the transmission time increases and synchronization reliability deteriorates
Solution Approach 1:
The patent segments the information transmission into two independent channels: downlink signals transmitted through electrode units and side information transmitted through wireless communication units. This segmentation allows simultaneous transmission of position data and side information without mutual interference, resolving the contradiction between information completeness and transmission time.
2Loss of information
If all side information is transmitted only through the downlink signal, then the information completeness is improved, but the synchronization reliability deteriorates
Solution Approach 1:
The patent introduces time stamps as an intermediary mechanism to synchronize downlink signals and side information. The time stamp, included in both the uplink signal and the side information transmission, serves as a reference marker that enables the touch device to accurately match received side information with the corresponding downlink signal, ensuring synchronization reliability.
3Loss of information
If large amounts of side information are transmitted through downlink signal, then the information completeness is improved, but the processing complexity increases
Solution Approach 1:
The patent separates the transmission of downlink signals and side information into different channels (electrode units vs. wireless communication units). This segmentation simplifies the processing architecture by allowing independent handling of position data and side information, reducing the complexity of signal processing while maintaining information completeness.
Data Source
AI summary
A touch system includes a touch device and an input device. The uplink signal transmitted by the touch device includes a timestamp. The input device transmits a downlink signal through the electrode unit and transmits a side information through a wireless communication unit. The inclusion of the corresponding timestamp in the side information ensures that the side information is combined with the corresponding downlink signal to correctly present the user's operation.