Touch Pen Microphone Sound Reproduction

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Solution Overview

Problem

Existing writing input systems on touch panels lack the ability to reproduce the writing sound effectively, which is known to enhance concentration in environments like classrooms and meetings.

Innovation Solution

A writing input device and system that incorporates a microphone to detect contact sounds and a voice generator to produce pseudo voice, allowing for high reproducibility of writing sounds by converting detected contact sounds into audible pseudo voice.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If an electronic pen is used for writing input on a touch panel, then writing input functionality is achieved, but writing sound is not generated

Engineering Contradiction:

Improvewriting input functionalityVSAvoidwriting sound

Core Design Contradiction:

Ease of operationVSObject-generated harmful factors

Solution Approach 1:

The patent uses a microphone to detect the sound generated when a real pen contacts the touch panel surface, and then copies this sound characteristics to generate pseudo-voice that reproduces the writing sound effect, solving the problem that electronic pens do not generate natural writing sound

Inventive Principle:

Principle #26Copying

Solution Approach 2:

The patent introduces a microphone as an intermediary device to capture the contact sound between the pen and panel, and a voice generator as another intermediary to synthesize the pseudo-voice from the captured sound, thereby enabling writing sound reproduction without direct contact between electronic pen and panel

Inventive Principle:

Principle #24Intermediary (Mediator)

2Productivity

If pseudo voice is generated based on pen speed only, then voice generation is achieved, but writing sound reproducibility is insufficient

Engineering Contradiction:

Improvevoice generation capabilityVSAvoidwriting sound reproducibility

Core Design Contradiction:

ProductivityVSManufacturing precision

Solution Approach 1:

The patent changes the parameter basis for voice generation from solely using pen speed to using actual contact sound detected by the microphone, thereby improving the precision and naturalness of writing sound reproduction while maintaining efficient voice generation

Inventive Principle:

Principle #35Parameter changes

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 system effectively outputs pseudo voice with high reproducibility of writing sounds, enhancing the auditory experience and potentially improving concentration in environments where writing input occurs.

Implementation Method 1

a microphone that detects contact sound generated when a tip end of the writing input device contacts a contact target

Methodology Applied

Scientific EffectSound detection: Sound

Data Source

PatentUS10936094B2Writing input device and writing input system

Publication Date: 2021.03.02 SHARP KK

AI summary

A touch pen includes a microphone that detects contact sound generated when a nib contacts an input surface of a touch panel, a voice generator that generates pseudo voice based on the contact sound detected by the microphone, and a voice outputter that outputs the pseudo voice generated by the voice generator.