Portable Read-Write Pen Mode Switching via Pen Point State Detection

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Solution Overview

Problem

Existing devices cannot conveniently switch between touch-read and write-record functions, limiting their versatility and user convenience.

Innovation Solution

A control method for a portable read-write pen that detects the state of the pen point, including exposed, pressure, and movement states, to automatically switch between touch-read and write-record modes, using a combination of image analysis, dot matrix code identification, and motion sensing to determine the appropriate mode.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a single device is designed to perform both touch-read and write-record functions, then the versatility and adaptability of the device is improved, but the device complexity increases

Engineering Contradiction:
Improvefunction versatilityVSAvoiddevice complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The portable read-write pen integrates both touch-read and write-record functions into a single device. The pen includes a camera for capturing position coordinates, a processor for analyzing images and identifying dot matrix codes, and a control unit for switching between modes. This multi-functional design allows one device to replace what previously required separate touch-read pens and write-record pens, directly improving versatility while managing complexity through integrated architecture.

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

Solution Approach 2:

The device dynamically switches between touch-read mode and write-record mode based on detected pen state. The control unit monitors pen position, pressure, and movement characteristics to automatically determine which function to perform. This dynamic mode switching allows the device to adapt its behavior to the current usage scenario, maintaining simplicity of operation despite the dual-function capability.

Inventive Principle:
Principle #15Dynamics

2Ease of operation

If the device automatically switches between modes based on pen state detection, then the ease of operation is improved, but the measurement precision requirements increase

Engineering Contradiction:
Improveoperation convenienceVSAvoidpen state detection precision
Core Design Contradiction:
Ease of operationVSMeasurement precision

Solution Approach 1:

The device employs feedback mechanisms to monitor pen state parameters including position coordinates captured by the camera, pressure force detected by sensors, and movement characteristics analyzed by the processor. This feedback loop allows the control unit to accurately determine when to switch between touch-read and write-record modes based on objective measurements of pen usage patterns, improving ease of operation through automatic mode selection.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The patent replaces manual mode selection with automated electronic detection and control. Instead of requiring users to manually switch between touch-read and write-record modes, the system uses electronic sensors to detect pen state (position, pressure, movement) and automatically triggers the appropriate mode. This substitution of mechanical switching with electronic automation improves operational convenience while relying on precise sensor measurements.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Reliability

If multiple detection parameters (exposed state, pressure, moving distance) are used to determine mode, then the reliability of mode switching is improved, but the device complexity increases

Engineering Contradiction:
Improvemode switching reliabilityVSAvoiddetection system complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The device combines multiple detection parameters into a unified mode determination system. The camera captures position coordinates, pressure sensors detect force applied to the pen point, and the processor analyzes movement characteristics. These multiple detection mechanisms are merged into a single control logic that综合evaluates all parameters to determine the appropriate mode. This integration improves reliability by considering multiple factors simultaneously while managing complexity through unified control architecture.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The device performs self-diagnosis and automatic mode selection based on detected pen state parameters. The control unit automatically evaluates exposure state, pressure force, and movement distance without requiring external intervention or complex user configuration. This self-service capability improves reliability by ensuring consistent mode switching based on objective measurements while reducing the operational complexity for the user.

Inventive Principle:
Principle #25Self-service

Data Source

PatentUS11556191B2Control method for portable read-write pen and portable read-write pen
Publication Date: 2023.01.17 MPEN TECH SHENZHEN CO LTD
  • US11556191B2 patent drawing
  • US11556191B2 patent drawing
  • US11556191B2 patent drawing

AI summary

A portable read-write pen and a control method for a portable read-write pen. The control method for a portable read-write pen includes the following steps: step S1 of detecting a state of a pen point of the portable read-write pen; and step S2 of controlling, according to the state of the pen point of the portable read-write pen, the portable read-write pen to enable a touch-read mode or a write-record mode.