Motion Input Device for Portable Terminals Using Sensor-Based Recognition

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Solution Overview

Problem

Conventional input signal generation methods for portable terminals, such as touch screens and keypads, require precise operations and are challenging due to their small size, leading to inaccuracies in generating desired inputs.

Innovation Solution

A motion input device that utilizes sensors to recognize user motions and converts them into appropriate input signals, allowing for the activation of application programs through motion signals, such as tapping, shaking, or tilting, which are then mapped to specific inputs.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If touch screen or keypad methods are used for input, then the portable terminal can be controlled flexibly and rapidly, but the input accuracy deteriorates when the terminal size is small

Engineering Contradiction:

Improvecontrol speedVSAvoidinput accuracy

Core Design Contradiction:

ProductivityVSMeasurement precision

Solution Approach 1:

The patent replaces the mechanical touch screen and keypad input systems with a motion recognition system that uses sensors to detect user movements. The sensor detection unit captures motion data, which is then processed to generate input signals, eliminating the need for precise physical contact with small interface elements.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent introduces motion signals as an intermediary between user intent and terminal control. Instead of direct finger contact with the screen or keys, the user performs physical motions that are captured by sensors and converted into control commands, providing a larger interaction space that improves accuracy.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Volume of moving object

If the portable terminal size is reduced, then portability is improved, but the ease of operation deteriorates due to difficulty in accurately pressing keys or touching screen areas

Engineering Contradiction:

Improveterminal sizeVSAvoidinput operation ease

Core Design Contradiction:

Volume of moving objectVSEase of operation

Solution Approach 1:

The patent transitions from two-dimensional touch screen interaction to three-dimensional motion-based interaction. Users can perform motions in multiple spatial dimensions (shaking, tilting, rotating the device), effectively increasing the interaction space available for input operations despite the small physical size of the terminal.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The patent replaces the mechanical keypad and touch screen systems with a sensor-based motion detection system. This substitution allows users to input commands through body movements rather than finger movements, making operation easier despite the reduced terminal size.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

3Adaptability or versatility

If conventional touch screen or keypad methods are used, then the terminal can be controlled, but input signal generation accuracy deteriorates when users cannot accurately press specific keys or touch specific areas

Engineering Contradiction:

Improvecontrol flexibilityVSAvoidinput signal generation reliability

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The patent replaces the mechanical touch interface with a sensor-based motion recognition system. The sensor detection unit detects various types of motions (shaking, tilting, rotating), and the operation recognition unit converts these into reliable input signals, eliminating the reliability issues associated with imprecise finger contact on small screens or keypads.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The motion recognition system provides multiple input methods through a single unified interface. Different motion types (shaking, tilting, rotating) can trigger different commands, making the system both versatile and reliable without requiring users to precisely target specific physical locations on the device.

Inventive Principle:

Principle #6Universality (Multi-functionality)

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 more intuitive and accurate control of portable terminals by converting user motions into precise input signals, improving usability and reducing errors associated with small form factors.

Implementation Method 1

A motion input device that utilizes sensors to recognize user motions and converts them into appropriate input signals

Methodology Applied

Scientific EffectAccelerometer: Accelerometer

Data Source

PatentUS10261603B2Motion input device for portable terminal and operation method using the same

Publication Date: 2019.04.16 SAMSUNG ELECTRONICS CO LTD

AI summary

The present invention relates to a motion input device for portable terminal and an operation method using the same. A motion input device of a portable terminal of the present invention includes a sensor unit configured to collect a sensor signal from at least one sensor; an operation recognition unit configured to generate a motion signal corresponding to an operation of portable terminal based on the sensor signal; a scenario preparation unit configured to generate an input scenario based on at least one motion signal; and a scenario mapping unit configured to detect, in a scenario database, a standards scenario corresponding to the input scenario, and to generate an input signal corresponding to the standards scenario.