3D Gesture Detection via Touch and Imaging Fusion

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Solution Overview

Problem

Conventional touch panel devices can only detect a limited number of operations such as tap, flick, and swipe, limiting the variety of interactions users can have with electronic devices.

Innovation Solution

An electronic device with a display unit capable of showing three-dimensional objects and a detection system that tracks the displacement of a second object in three-dimensional space, allowing for various operations to be performed on these objects, including tapping, moving, and pushing, by using a combination of touch sensors and imaging units to detect movements in multiple axes.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If conventional touch panel operations are used, then the device structure remains simple, but the variety of user interactions is limited

Engineering Contradiction:
Improvevariety of user interactionsVSAvoiddetection system complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent combines multiple detection technologies (touch panel sensors and imaging unit) into a unified detection system that works together to recognize various user operations. The touch panel detects contact points while the imaging unit captures hand gestures, and their data is integrated to enable diverse interaction modes including typing, swiping, and gesture recognition.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The detection system is designed to perform multiple functions: it can detect simple taps, complex gestures, hand movements, and typing patterns using the same hardware components. The imaging unit and touch panel work together to provide universal detection capabilities across different operation types, eliminating the need for separate detection systems for each interaction mode.

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

2Adaptability or versatility

If only two-dimensional touch panel operations are supported, then the device complexity remains low, but the functionality and user engagement are limited

Engineering Contradiction:
ImprovefunctionalityVSAvoiddetection capability complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent transitions from two-dimensional touch panel detection to three-dimensional gesture recognition by incorporating an imaging unit that captures hand movements in space. This adds a temporal and spatial dimension to operation detection, enabling recognition of gestures like pinching, rotating, and waving that cannot be detected by traditional 2D touch panels alone.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The system dynamically adapts its detection capabilities by switching between touch panel-only mode for simple interactions and combined imaging-unit-plus-touch-panel mode for complex gestures. The detection system adjusts its sensitivity and processing based on the detected operation type, providing optimized performance for each interaction mode.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS9507428B2Electronic device, control method, and control program
Publication Date: 2016.11.29 KYOCERA CORP
  • US9507428B2 patent drawing
  • US9507428B2 patent drawing
  • US9507428B2 patent drawing

AI summary

According to an aspect, an electronic device includes: a display unit for three-dimensionally displaying a first object; a detecting unit for detecting a displacement of a second object in three-dimensional space where the first object is displayed; and a control unit for performing an operation related to the first object according to the displacement of the second object detected by the detecting unit.