Portable Device Electrode Sharing for IBAN and NFC Integration
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Solution Overview
Problem
Existing portable electronic devices face challenges in integrating IBAN (Intra Body Area Network) data transmission technology due to the complexity and cost of combining IBAN and NFC (Near Field Communication) data transmission methods, particularly in providing a unified interface for electrodes and antenna coils that require different amplification and modulation techniques.
Innovation Solution
A portable electronic device is designed with a single alternating signal generator and a common amplifier for both IBAN and NFC data transmission, using an antenna coil to electrically polarize an IBAN electrode, allowing for dual-mode operation with reduced complexity and size by sharing components like processors and transmission circuits, and utilizing a conductive plane as both an electrode and part of the printed circuit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate amplifiers and modulation circuits are used for IBAN and NFC data transmission, then data transmission reliability is improved, but device complexity increases
Solution Approach 1:
The patent combines IBAN and NFC data transmission functions into a single unified interface that shares common amplifiers and modulation circuits. The electrode serves dual purposes: it acts as both an IBAN electrode and an NFC antenna, eliminating the need for separate dedicated components for each transmission mode.
Solution Approach 2:
The patent creates a universal data transmission interface that can operate in both IBAN and NFC modes using the same hardware components. The single electrode structure and shared amplification/modulation circuits provide multi-functional capability, allowing the device to perform both intracorporeal current transmission and inductive coupling transmission through a unified system.
2Reliability
If separate dedicated components are used for IBAN and NFC transmission, then transmission performance is improved, but device size increases
Solution Approach 1:
The patent merges IBAN and NFC transmission components into a single integrated structure. The same electrode serves as both the IBAN body electrode and the NFC antenna, and common amplifiers and modulation circuits are shared between both transmission modes, significantly reducing the overall device volume.
Solution Approach 2:
The unified interface design provides universal functionality where a single component structure supports both IBAN and NFC operations. This multi-functional approach eliminates redundant components and reduces device size while maintaining the transmission performance required for both modes.
3Ease of operation
If separate interfaces are provided for IBAN electrode and NFC antenna coil, then ease of operation is improved, but device complexity increases
Solution Approach 1:
The patent merges the IBAN electrode interface and NFC antenna interface into a single unified interface. This single interface structure provides ease of operation by simplifying the user interaction model while internally supporting both transmission modes through shared amplifiers and modulation circuits.
Solution Approach 2:
The unified interface provides universal access to both IBAN and NFC functions, improving ease of operation by presenting a single simplified interface to the user while the underlying system automatically handles the appropriate transmission mode based on the operational context.
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 solution simplifies the integration of IBAN and NFC data transmission in portable devices, reducing size and cost while maintaining high data transmission efficiency across both modes, enabling efficient data exchange through intracorporeal currents and inductive coupling.
Implementation Method 1
an antenna coil (CL) arranged close to the conductive plane (2) of the printed circuit (1) so as to generate, from an alternating signal, an alternating magnetic field having field lines which collide with the plane conductor of the printed circuit and induce currents therein
Implementation Method 2
A capacitor C1 represents the capacitive coupling between the internal electrode IE1 of the device D1 and an area of the body closest to this electrode
Implementation Method 3
The generator SG of the emitter D1 creates an oscillating potential Vi1 between the electrodes OE1, IE1. An electric field E is formed between the internal electrode IE1 and the body HB of the subject
Data Source
Figure 1~2
Figure 3~6
Figure 7~9
AI summary
The invention relates to a portable electronic device comprising a digital display (20) having an electrically conducting plane (21) for neutralizing the interfering electromagnetic radiation of the display, a device (CT1, CL) for transmitting data by intracorporeal current and comprising a first electrode (2) and a second electrode. According to the invention, the first electrode is formed by the conducting plane (21) of the display which is electrically connected to the data transmission device, and the second electrode is formed by the conducting plane of a printed circuit.