Haptic Feedback Device for Remote Texture and Temperature Simulation

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Solution Overview

Problem

The lack of haptic feedback in internet sales limits the user's ability to fully experience a product before purchase, unlike in-store sales where tactile interaction is possible.

Innovation Solution

A haptic feedback device that includes an input unit for receiving remote object data, a feedback surface, and haptic actuators controlled by a control unit to simulate the texture, temperature, and moisture of the remote object, providing a tactile experience.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If haptic feedback device is introduced to provide tactile experience, then user experience is improved, but device complexity increases

Engineering Contradiction:
Improveuser experienceVSAvoiddevice complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The haptic feedback device is divided into distinct functional modules: feedback surface, haptic actuator, control unit, and input unit. Each module performs a specific function, allowing independent optimization and simplifying the overall system architecture while providing comprehensive tactile feedback capabilities.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The feedback surface serves multiple functions: it provides tactile feedback, displays information, and interacts with the user. The haptic actuator can simulate various textures and surfaces, making the device versatile for different application scenarios without requiring separate specialized components.

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

2Measurement precision

If multiple haptic actuators are used to simulate different textures and properties, then tactile feedback accuracy is improved, but device complexity increases

Engineering Contradiction:
Improvetactile feedback accuracyVSAvoiddevice complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

Different regions of the feedback surface can be assigned different haptic actuators with specific characteristics (texture, temperature, humidity) to simulate local variations in the target object's properties, enabling accurate tactile feedback without requiring every area to have the same complex actuator configuration.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The haptic actuators can dynamically adjust parameters such as texture, temperature, and humidity to match the target object's properties. This allows a single actuator type to simulate multiple different surfaces by changing operational parameters rather than requiring multiple specialized actuators.

Inventive Principle:
Principle #35Parameter changes

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

Enriches the user's experience by allowing them to make more informed purchase decisions based on simulated tactile interactions with the remote object.

Implementation Method 1

the texture feedback actuator comprises a piezoelectric actuator. A piezoelectric actuator can generate a movement or displacement when it is supplied with an electric signal.

Methodology Applied
Scientific EffectPiezoelectric effect: Piezoelectric Effect

Implementation Method 2

A Peltier element can heat or cool a given surface when it is supplied with an electric signal.

Methodology Applied
Scientific EffectPeltier effect: Peltier Effect

Implementation Method 3

the pumping element is a piezoelectric actuator. Piezoelectric actuators can be used to form peristaltic pumps or micro peristaltic pumps so as to deliver to the feedback surface a metered amount of fluid.

Methodology Applied
Scientific EffectPeristalsis: Peristalsis

Data Source

PatentUS20250322734A1Haptic feedback device and haptic feedback method
Publication Date: 2025.10.16 NAGRAVISION SRL
  • US20250322734A1 patent drawing
  • US20250322734A1 patent drawing

AI summary

A haptic feedback device that includes an input unit for receiving remote object data, at least one feedback surface arranged to be touched or sensed by a user, at least one haptic actuator arranged for providing a change on the feedback surface, and a control unit that is connected to the input unit to receive the remote object data, connected to the haptic actuator, and arranged to control the haptic actuator according to the received remote object data so as to provide haptic feedback to the user.