Multi-Mode Input Pen Switching Between Touchscreen and Surface Control

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Solution Overview

Problem

Current input devices, such as mice and digital pens, are limited to specific modes of operation, leading to poor user experience due to their single-function nature.

Innovation Solution

An input device that can detect contact with both touch apparatuses of electronic devices and object surfaces, switching between modes to provide multiple functions, including capacitive, electromagnetic, and optical touch signals, and integrating pressure sensing for enhanced control.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If an input device is designed for a specific mode (e.g., mouse on desktop, capacitive digital pen on touchscreen), then the device can provide precise control for that mode, but the device cannot provide multiple use modes leading to poor user experience

Engineering Contradiction:
Improveinput mode versatilityVSAvoiddevice functionality complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The input device is designed to perform multiple functions by detecting different contact surfaces. It can function as a capacitive touch pen when contacting a touchscreen, as an electromagnetic pen when contacting an electromagnetic display, and as an optical mouse when contacting a general object surface. This multi-functionality resolves the contradiction by enabling a single device to adapt to various modes without requiring separate specialized devices.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The input device dynamically switches between different operating modes based on the detected contact surface type. The device determines whether it is contacting a touch apparatus or an object surface beyond the touch apparatus, and automatically adjusts its detection and control methods accordingly. This dynamic adaptation allows the device to maintain precision in each mode while providing versatility across modes.

Inventive Principle:
Principle #15Dynamics

2Adaptability or versatility

If an input device uses multiple detection methods (capacitive, electromagnetic, optical) to support multiple modes, then the device can adapt to different scenarios, but the detection and control complexity increases

Engineering Contradiction:
Improvescenario adaptabilityVSAvoidcontact surface detection difficulty
Core Design Contradiction:
Adaptability or versatilityVSDifficulty of detecting and measuring

Solution Approach 1:

The input device performs preliminary detection to determine the contact surface type before executing the appropriate control function. By first detecting whether the contact surface is a touch apparatus or an object surface beyond the touch apparatus, the device can then select and execute the corresponding detection and control method. This preliminary action simplifies the overall detection process by avoiding the need to simultaneously process all detection methods in all scenarios.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The input device uses feedback from the contact surface detection to adjust its operating mode. The electronic device provides feedback about the type of surface contacted, and the input device uses this feedback to determine the appropriate detection method and control function to employ. This feedback mechanism simplifies the detection process by enabling the device to focus on the relevant detection method for the current scenario.

Inventive Principle:
Principle #23Feedback

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

Enables seamless switching between modes, improving user convenience and experience by allowing the input device to adapt to different scenarios and user requirements, enhancing functionality and precision.

Implementation Method 1

the touch signal may be a capacitive touch signal

Methodology Applied
Scientific EffectCapacitive touch signal: Capacitance

Implementation Method 2

the touch signal may be a capacitive touch signal, an electromagnetic touch signal

Methodology Applied
Scientific EffectElectromagnetic touch signal: Electromagnetic Induction

Implementation Method 3

the touch signal may be a capacitive touch signal, an electromagnetic touch signal, or an optical touch signal

Methodology Applied
Scientific EffectOptical touch signal: Reflection

Implementation Method 4

detecting whether the input device is in contact with an object surface beyond the touch apparatus, and if the input device determines that the input device is in contact with the object surface, detecting, by the input device, a motion of the input device on the object surface

Methodology Applied
Scientific EffectOptical detection: Reflection

Data Source

PatentEP3660638B1Control method for electronic apparatus and input apparatus
Publication Date: 2025.12.03 HUAWEI TECH CO LTD
  • EP3660638B1 patent drawingFigure 1-1-1~1-1-2
  • EP3660638B1 patent drawingFigure 1-2~1-3
  • EP3660638B1 patent drawingFigure 1-4~1-5

AI summary

This application discloses a method for controlling an electronic device by an input device, and an input device. The method in this application includes: controlling, by the input device, an electronic device by using a touch apparatus when the input device detects that the input device is in contact with the touch apparatus of the electronic device; and when the input device detects that the input device is in contact with an object surface beyond the touch apparatus of the electronic device, detecting, by the input device, a motion of the input device on the object surface, and sending information about the motion to the electronic device, to control the electronic device.