Haptic Feedback Control via Contact Part Detection
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Solution Overview
Problem
Users may not experience sufficient sensory immersion when receiving haptic feedback from electronic devices, regardless of their holding state or surrounding circumstances, due to inadequate differentiation in haptic feedback based on device states or content being played.
Innovation Solution
An electronic device equipped with a haptic module, processor, and memory that detects signal requests for haptic feedback, identifies contact parts using a sensor module, and provides optimized haptic feedback based on contact area or state information, maximizing user experience and minimizing power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If haptic feedback is provided using conventional actuators without differentiation based on device state or content, then the system is simple to operate, but the sensory immersion is insufficient
Solution Approach 1:
The haptic feedback system dynamically adapts its characteristics based on device state (holding state, orientation) and content type (video, audio, game). The processor continuously monitors sensor data and adjusts haptic parameters in real-time, transforming a static feedback system into a dynamic one that responds to changing conditions, thereby enhancing sensory immersion without complicating user operation
Solution Approach 2:
The system changes haptic feedback parameters (intensity, frequency, pattern, duration) based on identified contact parts and device states. Different contact parts trigger different haptic parameters, and content type determines specific parameter combinations. This parameter adaptation resolves the contradiction by providing rich, differentiated feedback that enhances immersion while maintaining simple operation through automatic adjustment
2Reliability
If haptic feedback is continuously provided regardless of device state, then sensory immersion is maximized, but power consumption increases
Solution Approach 1:
The system applies partial haptic action by providing feedback only when and where needed based on contact part identification. Instead of continuous full-intensity feedback, the processor selectively activates haptic actuators corresponding to contacted regions and adjusts intensity based on content relevance. This partial action maintains immersion quality while significantly reducing unnecessary power consumption
Solution Approach 2:
The haptic feedback system serves itself by automatically adjusting its operation based on sensor-detected device state and content type. The processor autonomously determines when haptic feedback is appropriate and what parameters to use, eliminating the need for manual user control. This self-service mechanism ensures immersion is maintained through context-appropriate feedback while minimizing power consumption by avoiding unnecessary activation
3Reliability
If haptic feedback is differentiated based on contact part and device state, then sensory immersion is enhanced, but device complexity increases
Solution Approach 1:
The sensor module serves multiple functions: it detects device orientation, identifies contact parts, and provides data for haptic feedback control. The processor integrates these sensing functions with haptic actuator control in a unified system. This multi-functionality approach enhances immersion through differentiated feedback while minimizing device complexity by reusing existing sensors for multiple purposes rather than adding dedicated components
4Reliability
If multiple haptic actuators are used for differentiated feedback, then sensory immersion is improved, but device complexity and cost increase
Solution Approach 1:
The haptic feedback system is segmented into multiple independent actuators positioned at different device locations. Each actuator can be independently controlled based on which contact part is detected. This segmentation enables differentiated feedback across various device regions, improving immersion by providing location-specific haptic responses while maintaining manageable system complexity through modular actuator design and independent control
Data Source
AI summary
An electronic device for offering an optimized and differentiated haptic feedback to a user on the basis of various states of an electronic device is provided. The electronic device includes a haptic module configured to provide a haptic feedback, a processor electrically connected to the haptic module, and a memory electrically connected to the processor. The memory stores instructions, that when executed by the processor, cause the processor to control to detect a signal of a request for the haptic feedback, to identify a contact part of the electronic device by using a sensor module, and to provide the haptic feedback based on results of identifying the contact part.