Touch Apparatus Interference Detection via Automated Frequency Scanning
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Solution Overview
Problem
Current methods for detecting interference signal sources in touch apparatuses are inefficient, requiring manual frequency scanning and wasting time due to the large range of frequency bands, leading to incomplete detection of working frequencies and high labor costs.
Innovation Solution
A system comprising a master apparatus, signal generator, automatic line drawing apparatus, and power supply that outputs testing signals and collects line drawing trajectories to determine if the touch IC has an automatic frequency-hopping mechanism, allowing simultaneous control and automated scanning of multiple frequencies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If manual frequency scanning is used to detect interference signal sources, then the detection process can be performed with simple equipment, but the testing time is excessively long and detection completeness is poor due to the large frequency band range
Solution Approach 1:
The patent replaces the manual mechanical frequency scanning process with an automated computer-controlled system. The master apparatus automatically controls the signal generator to output testing signals at different frequencies and coordinates the automatic line drawing apparatus to perform detection, eliminating the need for manual operation and significantly reducing testing time while maintaining simple overall system architecture.
Solution Approach 2:
The patent implements preliminary action by having the master apparatus pre-establish the frequency scanning plan and automatically sequence the testing signals before actual detection begins. The system pre-coordinates the operation timing between signal generation and line drawing detection, ensuring comprehensive frequency coverage is achieved systematically without manual intervention during the actual testing phase.
2Ease of operation
If manual frequency scanning with large frequency intervals is used, then the testing process is simpler to operate, but not all working frequencies can be scanned carefully leading to incomplete detection
Solution Approach 1:
The patent replaces manual frequency interval selection with automated computer control that precisely manages the frequency scanning process. The master apparatus controls the signal generator to output testing signals at specifically calculated frequency intervals, ensuring comprehensive coverage of all working frequencies while maintaining ease of operation through automated control.
Solution Approach 2:
The patent implements feedback mechanisms where the master apparatus monitors the detection results from the automatic line drawing apparatus and adjusts the frequency scanning process accordingly. This feedback loop ensures that all working frequencies are detected with appropriate precision, allowing the system to refine frequency intervals based on actual detection needs rather than using fixed large intervals.
3Productivity
If automated simultaneous control of signal generator and line drawing apparatus is implemented, then detection efficiency is improved and testing time is reduced, but the device complexity increases
Solution Approach 1:
The patent merges the control functions for the signal generator and the automatic line drawing apparatus into a single master apparatus. This consolidation coordinates both devices to operate simultaneously under unified control, improving detection efficiency by eliminating manual switching while managing complexity through centralized control architecture.
Solution Approach 2:
The master apparatus serves multiple functions: it controls the signal generator to output testing signals, coordinates the automatic line drawing apparatus for detection, manages the power supply apparatus, and processes detection results. This multi-functionality improves productivity by having one device handle all control tasks rather than requiring separate control systems for each component.
Data Source
AI summary
Detecting method and system for a touch apparatus are provided. A testing signal is outputted to a power supply apparatus by a signal generator, and a line drawing trajectory, which is generated by an automatic line drawing apparatus drawing lines on the touch apparatus, is collected when power with the testing signal is supplied to the touch apparatus by the power supply apparatus. Next, whether the testing signal passes a frequency interference test is determined based on the line drawing trajectory.