Facial Interface Biometric Sensors for Head-Mountable Devices
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Solution Overview
Problem
Conventional head-mountable devices (HMDs) lack effective integration of sensors to capture biometric information, leading to limited user feedback and discomfort due to bulky designs and ineffective sensor placement.
Innovation Solution
A facial interface with sensors, such as temperature, respiration, stress response, and heart activity sensors, is integrated into HMDs to collect biometric data and provide feedback in the form of visual, audio, or haptic responses, allowing for improved user interaction and experience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If sensors are integrated into conventional head-mountable devices, then biometric information can be collected, but the device becomes bulky and heavy
Solution Approach 1:
The patent applies local quality by placing sensors specifically at the facial interface where they can contact the user's face directly. This localized placement allows biometric sensing to occur at the point of interaction rather than requiring centralized sensor housing, thereby collecting accurate biometric data without adding bulk to the main device body.
Solution Approach 2:
The patent transitions sensor placement from the traditional three-dimensional bulk structure of conventional HMDs to a two-dimensional facial interface surface. By distributing sensors across the facial contact surface, the system achieves comprehensive biometric monitoring without requiring volumetric sensor housing, thus reducing overall device weight and bulk.
2Adaptability or versatility
If multiple sensors are added to HMDs, then user feedback capability is enhanced, but device complexity increases
Solution Approach 1:
The patent implements multi-functionality by designing a facial interface that serves dual purposes: it provides the structural framework for wearing the device while simultaneously housing multiple biometric sensors. This universal design allows the same component to fulfill both mechanical support and sensing functions, thereby enhancing user feedback capability without proportionally increasing device complexity.
Solution Approach 2:
The patent merges the facial interface structure with sensor housing into a single integrated component. By combining what would traditionally be separate elements (structural framework and sensor housing) into one unified facial interface, the system reduces overall complexity while maintaining enhanced user feedback capabilities through multiple integrated sensors.
3Stability of the object's composition
If sensors are placed in conventional HMD positions, then device structure is maintained, but sensor effectiveness is reduced
Solution Approach 1:
The patent applies preliminary action by positioning sensors at the facial interface before the user donnes the device. This advance placement ensures optimal contact with facial features (nose, cheeks, forehead) is achieved from the moment of wearing, maximizing sensor effectiveness for detecting biometric signals such as heart rate, temperature, and facial expressions without requiring structural modifications to the main device body.
Data Source
AI summary
A head-mountable device including a frame, a display positioned in the frame, a processor, and a facial interface connected to the frame. The facial interface can include a sensor electrically coupled to the processor. The sensor can collect biometric information from a nasal region of a user and generate a signal based on the biometric information.