Game Controller Haptic Surface Mapping for Dynamic Texture and Temperature

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Solution Overview

Problem

Current haptic feedback systems in computer simulations, such as those provided by vibration motors in game controllers, lack the ability to convey spatial and temporal changes in texture and temperature, failing to fully immerse players.

Innovation Solution

Implementing a data structure that combines spatially-dependent texture, temperature, and hardness information, using 3D displacement maps and heat maps to dynamically change the surface properties of game controllers in sync with gameplay interactions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If vibration motors are used to provide haptic feedback, then players can feel basic tactile sensations, but the system cannot convey spatial and temporal changes in texture and temperature

Engineering Contradiction:
Improvehaptic feedback capabilityVSAvoidspatial and temporal haptic information
Core Design Contradiction:
Adaptability or versatilityVSLoss of information

Solution Approach 1:

The controller surface is divided into multiple independent texture elements (ridges, bumps, patterns) that can be individually actuated. Each segment can change its texture state independently, allowing spatially varying tactile feedback across different regions of the controller surface.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The texture elements are designed to dynamically change their physical state between different texture configurations (e.g., raised vs. flattened, smooth vs. rough). This dynamic reconfiguration allows the same physical location to convey different tactile information at different times, enabling temporal haptic variations.

Inventive Principle:
Principle #15Dynamics

2Adaptability or versatility

If a data structure combining spatially-dependent texture and temperature information is implemented, then nuanced haptic feedback is achieved, but device complexity increases

Engineering Contradiction:
Improvehaptic feedback precisionVSAvoiddata structure complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

Multiple types of haptic information (texture, temperature, spatial location, temporal changes) are merged into a unified data structure format. This allows all haptic parameters to be processed and transmitted together, reducing the need for separate data handling systems for each haptic modality.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The data structure uses spatial coordinates to associate specific haptic properties with specific locations on the controller surface. Each spatial location can have its own unique combination of texture, temperature, and temporal characteristics, allowing localized haptic control without requiring a separate system for each location.

Inventive Principle:
Principle #3Local quality

Data Source

PatentUS20250367546A1Digital format for transmitting changes in texture, temperature, and other haptics
Publication Date: 2025.12.04 SONY INTERACTIVE ENTERTAINMENT LLC
  • US20250367546A1 patent drawing
  • US20250367546A1 patent drawing
  • US20250367546A1 patent drawing

AI summary

A computer simulation controller changes the texture of its surface dynamically over time. Textures may include bumpy, rough, spiky, smooth, rippled, etc. according to received data that not only conveys the textures themselves, but also the location of the textures on the surface of the controller. Similarly, different areas of the controller can change to different temperatures according to received data that not only indicates the temperatures but also their spatial dependency on the controller. Information regarding these two haptics may be combined in a single data structure, with texture and temperature both being expressed at the same time, with changes over time.