Touchless Smartphone Control Through Handheld Device Rotations

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Solution Overview

Problem

Users with only one hand available are unable to interact with smartphones due to the need for both hands to operate the device, limiting their engagement.

Innovation Solution

A method and apparatus for capturing touchless inputs using hand gestures to control a user interface, utilizing Fliks - rotations of a portable electronic device along the X, Y, and Z axes to perform operations without touching the screen.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a touch screen interface is used requiring two hands for operation, then the user can interact with the smartphone, but the user cannot operate it when holding it with one hand

Engineering Contradiction:

ImproveEase of operationVSAvoidAdaptability to single-handed use

Core Design Contradiction:

Ease of operationVSAdaptability or versatility

Solution Approach 1:

The patent replaces the mechanical touch-based interaction system with an inertial sensing system. The accelerometer and gyroscope detect device movements and rotations in three-dimensional space, converting physical motion into touchless input commands. This allows users to interact with the smartphone by gesturing with their hand holding the device, eliminating the need to touch the screen and enabling single-handed operation.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Adaptability or versatility

If touchless input through device movement is implemented, then single-handed interaction is enabled, but the system must accurately distinguish intentional gestures from normal handling movements

Engineering Contradiction:

ImproveAdaptability to touchless interactionVSAvoidDifficulty of detecting intentional gestures

Core Design Contradiction:

Adaptability or versatilityVSDifficulty of detecting and measuring

Solution Approach 1:

The system continuously monitors accelerometer and gyroscope data, providing feedback loops that analyze movement patterns in real-time. By establishing baseline characteristics of intentional gestures versus normal handling, the system can distinguish between user intent and incidental movements. The feedback mechanism adjusts sensitivity and recognition thresholds based on learned patterns, improving gesture detection accuracy over time.

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The patent utilizes changes in multiple parameters simultaneously - acceleration magnitude, rotation rate, gesture duration, and movement trajectory - to distinguish intentional gestures from normal handling. By analyzing the combination and temporal sequence of these parameters rather than relying on a single threshold, the system achieves more accurate gesture recognition and reduces false positives.

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentUS12373037B2Capturing touchless inputs and controlling a user interface with the same

Publication Date: 2025.07.29 TAHIR FADLALLAH HUSSEIN GHASSAN H

AI summary

A method and apparatus for capturing touchless inputs and controlling an electronic device with the same are described. In one embodiment, the method for controlling a user interface of software on a portable electronic device, the method comprising: obtaining one or more touchless inputs by capturing movements of the portable electronic device resulting from one or more hand gestures made by a hand holding the portable electronic device; determining one or more operations to control the user interface being displayed on a display of the portable electronic device based on the one or more touchless inputs; and controlling the software using at least one of the one or more operations.