Electromagnetic Resonant Panel for Precise Pen Multi-Input Detection
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Solution Overview
Problem
Multi-input screens face malfunctions when selecting icons due to small icon sizes and close gaps, leading to unintended function execution when using fingertip inputs, as precise inputs are challenging and often result in adjacent selection.
Innovation Solution
An electronic device with a pen input device that utilizes an electromagnetic resonant panel to detect inputs by generating and responding to resonant signals, allowing for precise pen input events and gestures, such as drag and rotation, on a multi-input screen.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If fingertip input is used on multi-input screen, then ease of operation is improved, but measurement precision deteriorates leading to malfunction
Solution Approach 1:
The patent introduces a pen input device as an intermediary tool between the user and the multi-input screen. The pen device with resonance detection capability serves as a mediator that enables precise input detection while maintaining ease of operation through intuitive writing gestures.
Solution Approach 2:
The patent replaces the mechanical contact-based fingertip input system with an acoustic wave-based pen input system. By substituting the mechanical detection method with acoustic resonance detection, the system achieves higher precision while maintaining ease of use.
2Productivity
If icon size is reduced to increase information density, then productivity is improved, but measurement precision deteriorates causing unintended selection
Solution Approach 1:
The patent replaces the area-based mechanical touch detection with acoustic resonance detection. This substitution allows for precise point detection even when icons are small and densely packed, as the acoustic wave can detect the exact point of contact with high precision.
Solution Approach 2:
The patent changes the detection parameter from area-based pressure distribution (in mechanical touch) to frequency-based resonance detection. This parameter change enables precise localization of input points regardless of icon size or density on the screen.
3Measurement precision
If acoustic wave scheme is used for pen input detection, then measurement precision is improved, but adaptability deteriorates due to limited input ways
Solution Approach 1:
The patent makes the acoustic wave-based pen input system universal by enabling it to detect multiple types of input gestures (writing, drawing, typing, etc.) through a single detection mechanism. The resonance detection method can accommodate various input styles and applications, enhancing adaptability.
Solution Approach 2:
The patent introduces dynamic gesture recognition capabilities to the acoustic wave detection system. By analyzing the temporal and spatial characteristics of resonance signals, the system can distinguish between different input gestures and adapt its response accordingly, enhancing versatility.
4Measurement precision
If resonant frequency detection is used, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The patent implements a self-service detection mechanism where the multi-input screen itself generates and detects the acoustic resonance waves without requiring external complex detection equipment. The screen structure serves both as the input surface and the resonance detection medium, simplifying the overall system.
Solution Approach 2:
The patent merges the display function and the detection function into a single integrated system. The acoustic wave detection capability is built into the multi-input screen structure, combining what would traditionally be separate components into one unified device, thereby reducing overall complexity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution enables accurate and precise pen input events on multi-input screens, reducing malfunctions and ensuring intended functions are executed, improving user interaction by distinguishing between single and multi-input events and handling gestures effectively.
Implementation Method 1
an acoustic wave multi-input screen has been widespread due to its excellent input recognition
Implementation Method 2
an input is detected using a resonant frequency generated in the multi-input screen
Data Source
Figure 1~3
Figure 4A~4B
Figure 4C~4D
AI summary
An electronic device and method are provided. The electronic device includes an electromagnetic resonant panel, an electromagnetic controller configured to detect input values, which are induced in multiple locations of the electromagnetic resonant panel by at least one resonant circuit of an input pen, and a controller configured to detect a pen multi-input event based on the detected input values, and to control an operation corresponding to the detected pen multi-input event.