Biometric Sensor Housing Design for Extended Sensing Area
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Solution Overview
Problem
The reduction in sensing area of electronic devices, such as wearable devices, leads to decreased accuracy in measuring biometric information, as the available space for sensors is minimized.
Innovation Solution
The electronic device incorporates a housing design where a portion of the housing is used as a sensing area, with conductive portions on the side and rear surfaces electrically connected to a biometric circuit through conductive paths, allowing for extended sensing capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If the electronic device is made slim to easily carry, then the device portability is improved, but the sensing area for measuring biometric information is reduced
Solution Approach 1:
The patent transitions the sensing area from a two-dimensional surface constraint to a three-dimensional spatial utilization by placing conductive portions on the side member and rear cover, effectively adding vertical and lateral dimensions to the sensing area without increasing device footprint or thickness
2Length of moving object
If the sensing area is reduced to maintain slim device design, then the device portability is improved, but the sensing accuracy for measuring biometric information decreases
Solution Approach 1:
The patent extends the sensing area into three-dimensional space by positioning conductive portions on the side member and rear cover surfaces, thereby increasing the effective sensing area without increasing the device's two-dimensional footprint or thickness, thus maintaining sensing accuracy while preserving slim design
3Measurement precision
If conductive portions are added to side member and rear cover to extend sensing area, then the sensing accuracy is improved, but the device structural complexity increases
Solution Approach 1:
The patent merges the housing components (side member and rear cover) with the conductive portions, integrating the sensing function directly into the structural elements already present in the device, thereby extending the sensing area without adding separate, independent sensing components that would increase structural complexity
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
This design enhances the sensing accuracy by utilizing the housing as a sensing area, improving the measurement of biometric information without increasing the device's size.
Implementation Method 1
at least one conductive path disposed in the space, configured to electrically connect the biometric circuit and the first conductive portion
Data Source
AI summary
An electronic device includes a housing including a first cover member, a second cover member, and a side member enclosing a space between the first cover member and the second cover member; a support member coupled to or formed integrally with the side member; a printed circuit board disposed in the space and including a biometric circuit; a first conductive portion disposed at least partially in the side member; a second conductive portion and third conductive portion disposed at least partially in the second cover member and electrically connected to the printed circuit board; and at least one conductive path disposed in the space, configured to electrically connect the biometric circuit and the first conductive portion, and formed on the support member. The biometric circuit receives a biometric signal based on the first conductive portion, the second conductive portion, the third conductive portion, and the at least one conductive path.