HMD Visual Button Mapping for Hidden Hardware Interaction

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Solution Overview

Problem

Users wearing head-mounted displays (HMDs) face difficulties in accurately activating system functions due to the hidden physical components, making it hard to trigger desired functions like powering on/off, volume adjustment, or opening system menus.

Innovation Solution

A method that involves providing visual content, tracking the motion state of a physical object using a tracking device, and performing a system function when the object is within a specific distance threshold and corresponds to a designated content region in the visual content.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If hardware physical components are provided on HMD body, then system functions can be activated, but users cannot accurately reach/find the positions of hardware buttons when wearing the HMD

Engineering Contradiction:
Improveease of activating system functionVSAvoiddifficulty of finding hardware button position
Core Design Contradiction:
Ease of operationVSDifficulty of detecting and measuring

Solution Approach 1:

The patent creates a virtual copy of the physical button interface in the visual content. The processor displays a virtual button representation that corresponds to the physical button's position and function, allowing users to see and interact with the control interface in the visual field without needing to physically locate the hidden hardware button.

Inventive Principle:
Principle #26Copying

Solution Approach 2:

The patent introduces a tracking device as an intermediary between the user and the system function. The tracking device detects the position and motion state of physical objects (user's hand or controller), and the processor uses this information to determine when to activate the system function, mediating the interaction between the user's physical actions and the system response.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Ease of operation

If tracking device is used to detect physical object motion state, then system function can be activated without physical interaction, but requires processing visual content and distance calculation

Engineering Contradiction:
Improveease of activating system functionVSAvoidcomplexity of processing system
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The processor performs multiple functions: it renders the visual content, tracks the physical object's position, calculates distance based on motion state, determines correspondence between physical objects and content regions, and activates system functions. By consolidating these diverse functions into a single processing unit, the patent reduces overall system complexity despite the multi-functional requirements.

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

Solution Approach 2:

The patent combines the tracking device's detection capability with the processor's visual content rendering and the interaction logic into an integrated system. The tracking device and processor work together as a unified interaction system, where the tracking data is directly integrated with the visual content coordinate system, eliminating the need for separate processing pipelines.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentUS20250077063A1Method for activating system function, host, and computer readable storage medium
Publication Date: 2025.03.06 HTC CORP
  • US20250077063A1 patent drawing
  • US20250077063A1 patent drawing
  • US20250077063A1 patent drawing

AI summary

The embodiments of the disclosure provide a method for activating a system function, a host, and a computer readable storage medium. The method includes: providing a visual content; tracking a first motion state of a physical object by using a tracking device; and in response to determining that the first motion state of the physical object indicates that a distance between the physical object and the host is less than a first distance threshold and the physical object corresponds to a first content region in the visual content, performing a first system function corresponding to the first content region, wherein the first content region corresponds to a first physical region on a body of the host.