Finger-Worn Ring Layout for Compact Wearable Sensing
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Solution Overview
Problem
Conventional wearable electronics are bulky and intrusive, leading to discomfort and interference with daily life, limiting their use for extended periods.
Innovation Solution
A wearable computing device in the form of a ring that includes a flexible printed circuit board with components and windows for data transmission, battery recharge, and status indication, utilizing concentrated photovoltaic cells for power, and biometric authentication through capillary mapping.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If conventional wearable electronics are designed with sufficient functionality and power capacity, then they can perform required tasks, but they become bulky and intrusive
Solution Approach 1:
The patent segments the wearable device into multiple functional components distributed across different locations: concentrated photovoltaic cells for power generation, LEDs for light emission, sensors for data collection, and a central processing unit. This segmentation allows each component to be optimized independently, reducing the overall bulk while maintaining functionality
Solution Approach 2:
The patent transitions from traditional two-dimensional wearable forms (watches, bands) to a three-dimensional ring structure that encircles the finger. This dimensional change enables more efficient spatial arrangement of components, allowing power, sensors, and processing elements to be distributed around the finger circumference, reducing interference and improving comfort
2Ease of operation
If wearable electronics are made compact and comfortable, then they can be worn for extended periods, but they may lack sufficient functionality and power capacity
Solution Approach 1:
The patent implements multi-functionality through a single ring device that simultaneously performs fitness tracking, gesture recognition, biometric authentication, and wireless communication. The flexible PCB integrates multiple sensors (accelerometers, gyroscopes, biometric sensors) that enable diverse functions without requiring multiple separate devices, maintaining both comfort and versatility
Solution Approach 2:
The patent utilizes parameter changes in material properties and operational modes to achieve multiple functions from compact components. For example, the flexible PCB changes its electrical configuration based on detected gestures, and the LEDs operate at different intensities for various functions (status indication, communication, authentication), maximizing functional capability within limited space
3Shape
If wearable electronics include transparent windows for charging and data transmission, then they can maintain sleek design, but they may compromise structural integrity and protection
Solution Approach 1:
The patent employs a flexible printed circuit board that can be bent and shaped to create seamless integration with the ring structure. The flexible nature of the PCB allows it to conform to the ring's geometry without requiring rigid protective housings, maintaining both aesthetic design and structural flexibility
Solution Approach 2:
The patent uses composite construction combining the flexible PCB with the rigid ring housing, creating a hybrid structure that leverages the advantages of both materials. The composite design allows transparent windows for charging and data transmission while maintaining overall structural integrity through the reinforced housing-PCB integration
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
Enables prolonged and comfortable wear, providing accurate fitness monitoring, gesture recognition, and biometric authentication while minimizing interference with daily activities.
Implementation Method 1
at least one concentrated photovoltaic cell, an antenna, and at least one LED are accessible via the window
Implementation Method 2
a base assembly, the base assembly including a concentrated light source directed at the photovoltaic element
Implementation Method 3
the at least one component comprises at least one LED configured to emit at least one of visible light, infrared radiation, and ultraviolet radiation through the external potting
Implementation Method 4
biometric authentication through capillary mapping
Data Source
AI summary
A finger-worn wearable ring device may include a ring-shaped housing, a printed circuit board, and a sensor module that includes one or more light-emitting components and one or more light-receiving components. The wearable ring device may further include a communication module configured to wirelessly communicate with an application executable on a user device.