Human Body Communication Module Activation via Touch Detection
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Solution Overview
Problem
Current RF communication technologies, including human body communication (HBC), face challenges such as increased device size and production cost due to the need for tunable elements, unstable channel formation, and high power consumption, especially in establishing reliable data transmission through the human body.
Innovation Solution
An electronic device method involving a first short-range communication module to search for external devices, activate a second short-range communication module based on search results, detect user contact, and receive address information for setting up RF communication using HBC, optimizing channel parameters and operation periods to reduce power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If general HBC communication technology is used to establish stable communication channels, then communication reliability is improved, but device size and production cost increase due to requiring tunable elements or switchable elements
Solution Approach 1:
The patent extracts the HBC communication function into a separate second short-range communication module that operates independently from the first short-range communication module. This modular extraction allows the HBC module to be activated only when needed for contactless communication, avoiding the need for complex tunable elements in the main communication system while maintaining communication reliability when required.
Solution Approach 2:
The patent implements periodic activation of the second HBC communication module based on operation periods determined from search results. Instead of continuously operating the HBC module with complex tuning elements, the system periodically activates it only when external devices are detected, reducing device complexity while maintaining communication stability when needed.
2Speed
If HBC module is constantly activated to search for other devices, then connection speed is improved, but power consumption increases
Solution Approach 1:
The patent implements periodic activation of the second HBC communication module based on operation periods determined from search results. Instead of continuous operation, the module is activated only during specific periods when external devices are detected, significantly reducing power consumption while maintaining fast connection capability when needed.
Solution Approach 2:
The patent performs preliminary searching using the first short-range communication module before activating the second HBC module. This preliminary action identifies potential external devices, allowing the HBC module to be activated only when necessary, thus reducing power consumption while maintaining connection speed through pre-screening.
3Reliability
If impedance changes are accommodated to maintain stable communication, then communication reliability is improved, but additional power consumption is required for synchronization and collision resolution
Solution Approach 1:
The patent introduces the user's body as an intermediary communication channel for the second HBC module. This intermediary approach naturally handles impedance variations through the physiological properties of the human body, maintaining stable data transmission without requiring additional power-consuming synchronization and collision resolution mechanisms.
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 approach enables efficient and stable RF communication by utilizing the human body as a communication channel, reducing device size and power consumption while improving connection reliability and efficiency.
Implementation Method 1
technologies for a communication system and method using a part of a user body as a communication channel have been developed
Data Source
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AI summary
The present disclosure relates to an electronic device and a radio frequency (RF) communication connection method for the electronic device. A method of connecting an electronic device to an external device includes searching for at least one external device connectable with an electronic device within a preset communication range by using first short-range communication, determining an operation period of a second short-range communication module for performing second short-range communication with the at least one external device, based on a search result with respect to the at least one external device, activating the second short-range communication module according to the determined operation period and detecting a contact of a user of the electronic device with respect to an external device among the at least one external device by using the activated second short-range communication module, and receiving address information of the external device by performing second short-range communication with the external device, upon detecting the contact of the user.