3D Gesture Detecting Display Using Antenna Backscatter
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Solution Overview
Problem
Portable electronic devices face challenges in efficiently detecting objects and gestures at a distance due to limited space and the need for precise location, size, and shape recognition, which current touch-sensitive displays cannot effectively address.
Innovation Solution
A three-dimensional gesture detecting display is implemented using a plurality of antennae that emit signals and receive backscatter, allowing a processor to determine the location, size, and shape of objects spaced from the display, enabling more accurate gesture recognition and interaction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a touch-sensitive display is used for object detection, then user input capability is improved, but the ability to detect objects spaced from the display deteriorates
Solution Approach 1:
The patent combines touch-sensitive display functionality with three-dimensional gesture detection capabilities into a single integrated system. The display serves dual purposes: traditional touch input and spatial gesture recognition, eliminating the need for separate detection mechanisms while enhancing both user input methods
Solution Approach 2:
The display system is designed to perform multiple functions simultaneously - it acts as both a conventional touch-sensitive interface for direct contact input and a three-dimensional gesture detection system for contactless interaction, maximizing the utility of the display component
2Volume of moving object
If the device size is reduced for portability, then ease of portability is improved, but the space for user input and output deteriorates
Solution Approach 1:
The patent transitions from two-dimensional touch input to three-dimensional gesture detection, utilizing the spatial dimension in front of the display. This allows gesture recognition in the Z-axis (depth) direction, enabling more input capabilities without increasing the physical footprint of the device
Solution Approach 2:
The system dynamically adapts between different input modes - it can detect both direct touch contacts and spaced gestures, allowing the effective input space to expand beyond the physical display boundaries into the three-dimensional space in front of the device
3Device complexity
If conventional object detection methods are used, then device complexity is reduced, but the precision of location, size, and shape detection deteriorates
Solution Approach 1:
The detection system is segmented into multiple antenna elements arranged in an array across the display. Each antenna element independently detects electromagnetic signal changes, and their combined data provides precise three-dimensional localization and characterization of detected objects, enhancing measurement precision through distributed sensing
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
This solution enhances the ability to detect and differentiate between various objects and gestures, including fingers and palms, and allows for more precise control and interaction with the device, improving user input and output capabilities in portable electronic devices.
Implementation Method 1
a plurality of antennae arranged and constructed to emit a signal and to receive backscatter from the signal
Implementation Method 2
antennae arranged and constructed to emit a signal
Data Source
AI summary
An electronic device includes a display, a plurality of antennae arranged and constructed to emit a signal and to receive backscatter from the signal, and a processor operably coupled to the antennae to utilize the received backscatter to detect location and at least one of size and shape of an object spaced from the display.