Input Device Signal Phase Segmentation for Noise Reduction
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Solution Overview
Problem
Existing input devices face challenges in reliably detecting user inputs due to interference from noise signals and limitations in distinguishing between different types of input signals, which affects the accuracy and reliability of the detection process.
Innovation Solution
The implementation of an interface device with a sensor layer and a controller that outputs first and second uplink signals with different phases, allowing the input device to distinguish and convert these signals, thereby improving detection reliability by reducing noise interference and enhancing signal interpretation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single uplink signal is used for communication between the sensor layer and input device, then the device complexity is reduced, but the detection reliability deteriorates due to noise interference and inability to distinguish signal types
Solution Approach 1:
The uplink signal is segmented into multiple phase components (first phase and second phase) that are transmitted separately. The input device receives and processes these segmented phase components to distinguish between different signal types (synchronization data, information data, verification data) and improve detection reliability by comparing phases to identify and eliminate noise interference.
Solution Approach 2:
The signal transmission utilizes phase as a varying parameter to encode different types of data. By changing the phase of the uplink signal between first and second phases, the system can transmit different information types and enable the input device to distinguish signal types through phase comparison, thereby improving detection reliability without significantly increasing device complexity.
2Measurement precision
If phase differentiation is implemented to distinguish signal types, then the measurement precision improves, but the ease of operation deteriorates due to more complex signal processing requirements
Solution Approach 1:
The system employs periodic phase alternation in the uplink signal transmission, where the sensor layer sequentially transmits data in first phase and second phase intervals. This periodic action enables the input device to distinguish signal types through simple phase comparison at regular intervals, improving measurement precision while maintaining ease of operation through the regular, predictable signal pattern.
Solution Approach 2:
The input device uses feedback mechanisms to compare received phase information with stored reference data (synchronization data, information data, verification data). This feedback loop allows the system to automatically distinguish signal types and correct for noise interference, improving measurement precision while the automated feedback process maintains ease of operation by reducing manual intervention requirements.
Data Source
AI summary
An interface device includes an electronic device and an input device for communicating with the electronic device. The electronic device includes a display layer, a sensor layer, and a controller for outputting a first uplink signal and a second uplink signal to the sensor layer. The input device includes a communication unit for receiving an uplink signal from the sensor layer, a memory for storing first information and second information, a signal determination unit for determining whether the uplink signal is the first uplink signal or the second uplink signal, based on the first information and the second information, and a signal conversion unit for outputting conversion data in response to the uplink signal being the second uplink signal.