XR Control Device Prioritizing Wearable Input Over Hand Tracking

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Solution Overview

Problem

In XR systems, simultaneous use of operation devices and hand tracking can lead to malfunctions due to accidental interpretation of hand movements as input commands, causing unintended behavior.

Innovation Solution

A control device with a reception unit for both operation device inputs and hand tracking inputs, utilizing a determination unit to differentiate between the two based on set priorities, ensuring accurate command recognition.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If both operation device and hand tracking are used simultaneously for input operations, then the convenience and operability of the XR system is improved, but the risk of simultaneous recognition of both input methods causing malfunction or unintended behavior increases

Engineering Contradiction:

Improveconvenience and operabilityVSAvoidcontrol accuracy

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The system pre-assigns priorities to different input methods before conflicts occur. The determination unit uses these pre-set priorities to decide which input method to trust when both are activated simultaneously, preventing control conflicts without requiring real-time complex arbitration

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The determination unit acts as an intermediary between the operation device input unit and hand tracking input unit. It receives inputs from both sources, applies priority-based arbitration, and selects which input to pass to the control unit, thereby preventing simultaneous conflicting commands from reaching the control system

Inventive Principle:

Principle #24Intermediary (Mediator)

2Ease of operation

If hand tracking is used alone for intuitive operation, then the intuitiveness of control is improved, but the risk of false operation increases

Engineering Contradiction:

ImproveintuitivenessVSAvoidfalse operation risk

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The system merges hand tracking with wearable operation devices that can detect hand presence and movement. This combination maintains the intuitiveness of hand-based control while adding a physical device that can distinguish intentional gestures from accidental movements, reducing false operations

Inventive Principle:

Principle #5Merging (Combining)

3Reliability

If operation device is used alone for secure operation, then the security of control is improved, but the intuitiveness of operation is reduced

Engineering Contradiction:

Improvecontrol securityVSAvoidintuitiveness

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The system merges traditional operation device control with hand tracking capabilities. The wearable operation device provides secure, intentional input detection while hand tracking adds intuitive gesture recognition, creating a hybrid system that achieves both security and naturalness

Inventive Principle:

Principle #5Merging (Combining)

Data Source

PatentUS12197652B2Control device and control method with set priorities for input operations in competitive relationship

Publication Date: 2025.01.14 CANON KK

AI summary

A control device includes at least one memory and at least one processor which function as: a reception unit configured to be capable of receiving an input operation by an operation device that is a wearable-type device and an input operation by hand tracking; and a determination unit configured to determine which of the input operation by the operation device and the input operation by the hand tracking is employed as an input operation used to control an information processing system on a basis of priorities set in advance when simultaneously receiving the input operation by the operation device and the input operation by the hand tracking.