Front-Display UWB Antenna Layout for 3D Biosignal Sensing
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Solution Overview
Problem
Current electronic devices lack an efficient method to detect three-dimensional movement and bio-signals of users using wireless communication, particularly in thin bezel designs where space for antennas is limited.
Innovation Solution
An electronic apparatus equipped with a UWB module featuring multiple antennas arranged vertically and horizontally on its front surface, emitting and receiving UWB signals to obtain three-dimensional information of objects, including bio-signals, by processing signal differences and angles, and filtering noise to extract heart rate and respiration data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the portable terminal is always connected to the external device via Bluetooth, then the connection stability is improved, but the power consumption increases
Solution Approach 1:
The system dynamically adjusts the connection state between portable terminal and external device based on operational context. The controller switches between connected and disconnected states, making the connection status adaptive rather than static, thereby optimizing power consumption while maintaining connection stability when needed.
Solution Approach 2:
The system performs preliminary actions by establishing the connection before actual data transfer is needed, and maintaining it only during the period when data exchange is required. This preliminary setup allows the system to disconnect afterward, preventing unnecessary power consumption during idle periods.
2Use of energy by moving object
If the connection is disconnected to save power, then the power consumption is reduced, but the file transfer reliability deteriorates
Solution Approach 1:
The system performs preliminary actions by establishing the connection before actual data transfer is needed, and maintaining it only during the period when data exchange is required. This preliminary setup allows the system to disconnect afterward, preventing unnecessary power consumption during idle periods.
Solution Approach 2:
The controller receives feedback regarding data transfer requests and connection status, and adjusts the connection state accordingly. When a file transfer is requested, the system ensures the connection is established; when no transfer is needed, the system disconnects to save power, creating a feedback-driven adaptive connection management system.
3Loss of information
If the user is notified of connection status changes, then the user awareness is improved, but the operation complexity increases
Solution Approach 1:
The system provides self-service by automatically notifying the user of connection status changes without requiring manual checking. The notification system autonomously informs the user when the connection is established or disconnected, eliminating the need for complex user operations to monitor connection state.
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 accurate detection of three-dimensional movement and bio-signals, such as heart rate and respiration, with improved noise removal, allowing for real-time monitoring and notification of changes, even in thin bezel designs.
Implementation Method 1
Ultra-wideband (UWB) refers to a wireless technology in which the occupied frequency is 20 % or more of a central frequency or the occupied bandwidth is 500 MHz or more
Implementation Method 2
receiving a UWB reflection signal reflected from an object
Data Source
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AI summary
Provided is an operating method of an electronic apparatus. The operating method of the electronic apparatus, performed using a UWB communication module including a plurality of antennas, includes emitting a UWB transmission signal, receiving a UWB reflection signal reflected from an object, and obtaining three-dimensional information of the object based on the UWB transmission signal and the UWB reflection signal, wherein the plurality of antennas are respectively arranged in a vertical direction and a horizontal direction on a front surface of a display of the electronic apparatus.