Gesture-Based Wireless Pairing via Backscatter Signal Analysis

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Solution Overview

Problem

Current wireless communication technologies face challenges in securely and efficiently pairing devices without complex setup processes, particularly in environments where multiple devices are present, leading to potential security breaches and interference.

Innovation Solution

A gestural interface technology that uses backscatter communication signals to allow wireless devices to select and pair with other objects based on analog parameters such as signal amplitude and phase, enabling secure and efficient device pairing without the need for passwords or security codes.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional wireless communication technologies (Bluetooth, WiFi) are used for device pairing, then data transfer capability is achieved, but security risks increase due to complex setup processes and potential breaches

Engineering Contradiction:

Improvepairing securityVSAvoidsetup process complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent replaces traditional mechanical/button-based pairing methods with a gesture-based interface. The mobile device detects specific gestures (e.g., circular motion, waving) through its motion sensors to identify user intent for pairing, eliminating the need for manual button presses or complex setup procedures while maintaining security.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent introduces backscatter communication as an intermediary mechanism between the mobile device and the target device. This allows the mobile device to indirectly query and identify objects in the environment without direct communication protocols, simplifying the pairing process while maintaining security through the gesture-based selection mechanism.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Measurement precision

If the wireless device scans all objects in range, then complete object identification is achieved, but time consumption increases due to large number of devices to select from

Engineering Contradiction:

Improveobject identification accuracyVSAvoidpairing time

Core Design Contradiction:

Measurement precisionVSLoss of time

Solution Approach 1:

The patent performs preliminary actions by continuously scanning and identifying objects in the environment in the background before user interaction is needed. When the user performs a gesture, the system quickly retrieves pre-identified objects from memory, eliminating the need for real-time scanning during the pairing action and significantly reducing perceived pairing time.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent segments the object identification process into two distinct phases: a background scanning phase where objects are continuously detected and stored, and a user interaction phase where gestures are translated into selections from pre-identified objects. This segmentation allows the system to maintain high identification accuracy while minimizing user-perceived time delays.

Inventive Principle:

Principle #1Segmentation

3Adaptability or versatility

If multiple devices are within communication range, then communication flexibility is improved, but interference and security breach risks increase

Engineering Contradiction:

Improvecommunication range flexibilityVSAvoidinterference and security risk

Core Design Contradiction:

Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

The patent uses backscatter communication as an intermediary layer between the mobile device and target devices. This allows the mobile device to query objects in the environment without establishing direct communication channels, reducing interference risks. The gesture-based selection mechanism further ensures that only the intended target device is paired, preventing security breaches even when multiple devices are within range.

Inventive Principle:

Principle #24Intermediary (Mediator)

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 enables secure and efficient pairing of wireless devices by determining the intended object through movement and signal analysis, reducing the risk of security breaches and simplifying the pairing process in crowded device environments.

Implementation Method 1

receiving a backscatter communication signal from each of the objects

Methodology Applied

Scientific EffectBackscatter communication: Reflection

Data Source

PatentUS9454681B2Methods and devices for identifying selected objects

Publication Date: 2016.09.27 PLUM LABS LLC

AI summary

A method of choosing an object from multiple objects using a wireless device includes receiving a backscatter communication signal from each of the objects, determining one or more analog parameter of each backscatter communication signal, and, using the wireless device, selecting one object based at least in part on the analog parameter of each backscatter communication signal. Each of the objects includes an RF interface configured to communicate using backscatter communication.