Body-Coupled Communication Proximity Detection for Wearable Pairing
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Solution Overview
Problem
Conventional headphones and earpieces are inconvenient due to wired connections, which restrict user mobility, are prone to tangling, and can be damaged, while wireless solutions face issues like high power consumption and interference, and require manual pairing, necessitating a more user-friendly and secure method for data transfer and control between electronic devices.
Innovation Solution
A system utilizing Body-Coupled Communication (BCC) and short-range wireless communication that allows electronic devices to autonomously detect proximity to the user's body, eliminating the need for manual pairing by using capacitance measurements to initiate and manage data transfer between devices, ensuring secure and efficient connectivity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If wired connections are used for headphones and earpieces, then connection reliability is improved, but user mobility is restricted and wires are prone to tangling and damage
Solution Approach 1:
The patent replaces the mechanical wired connection system with a Body-Coupled Communication system that uses the human body as a transmission medium. The body-coupled communication unit transmits audio signals through capacitive coupling with the user's body, eliminating the need for physical wires while maintaining reliable connection. The control unit automatically manages connection establishment and termination based on body contact detection, resolving the contradiction between connection reliability and user mobility.
2Ease of operation
If short-range wireless solutions like Bluetooth are used, then user mobility is improved, but power consumption increases and manual pairing is required
Solution Approach 1:
The patent implements automatic connection management where the control unit autonomously detects body contact, initiates body-coupled communication, and establishes audio signal transmission without requiring manual user intervention. The system automatically determines when to connect and disconnect based on body contact detection, eliminating the need for manual pairing operations while reducing power consumption compared to continuous wireless scanning.
3Use of energy by moving object
If Body-Coupled Communication is used, then power consumption is reduced and automatic connection is achieved, but device complexity increases due to additional sensors and control mechanisms
Solution Approach 1:
The patent integrates the body-coupled communication unit and control unit into the existing electronic device architecture. The body-coupled communication unit combines capacitive sensing and signal transmission functions, while the control unit integrates body contact detection, connection management, and audio signal routing. This merging approach adds functionality while minimizing overall device complexity through shared components and unified control logic.
4Reliability
If manual pairing is required for wireless devices, then connection security is improved, but ease of operation deteriorates due to complex pairing procedures
Solution Approach 1:
The patent uses the human body as an intermediary medium for secure connection establishment. The body-coupled communication requires direct body contact between the electronic device and headphones, creating a natural physical barrier that prevents unauthorized connections. The control unit monitors body contact continuity and signal characteristics to verify authentic user-device-headphone connectivity, providing security without requiring manual pairing procedures.
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 instant and secure audio/video generation in wearable devices without manual pairing, reduces power consumption, and ensures correct device connection, providing a seamless and intuitive user experience while preventing unnecessary power drainage.
Implementation Method 1
an antenna (13) adapted for Body-Coupled Communication (BCC)... continuously check whether a capacitance belongs to a pre-defined capacitance interval indicating that the first communication device (10) is in close proximity to a body of the user
Data Source
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Figure 3
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AI summary
The present invention concerns devices and methods for control of data transfer in a personal area network. The data transfer being performed by body coupled communication (BCC) and short-range wireless communication between a first electronic communication device (10) and a second electronic communication device (20, 30). The devices being adapted to be in close proximity to a body of a user and the first electronic communication device (10) is configured to initiate and perform execution of predefined actions by means of the method to cooperate with the second electronic communication device (20, 30) in a system/personal area network.