Proximity-Based Multi-Antenna Control for Lower EM Exposure
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Solution Overview
Problem
Existing wireless communication systems face inconvenience when moving devices due to the need to disconnect and reconnect external antennas, and there are concerns about the health impacts of electromagnetic waves from integrated small-sized antennas, which affect signal configuration and transmission rates.
Innovation Solution
A data processing system that includes a display device with internal and external antennas, a proximity sensor, and a wireless data processing apparatus, which adjusts signal transmission strengths using different control modes based on the proximity of an object, reducing the internal antenna's strength when close to minimize electromagnetic exposure while maintaining optimal signal configuration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If external antenna is integrated into electronic device, then device portability is improved, but electromagnetic wave exposure to user increases
Solution Approach 1:
The patent implements dynamic antenna control by detecting user proximity through a proximity sensor and automatically adjusting antenna operation modes. When the sensor detects the user is close to the device, the system switches to a second control mode that reduces or disables the integrated antenna, thereby dynamically adapting to user presence and minimizing electromagnetic exposure while maintaining portability benefits
Solution Approach 2:
The system changes the operational parameters of the antenna based on detected conditions. By switching between first control mode (normal operation) and second control mode (reduced operation when user is close), the patent modifies transmission power and antenna activation status to balance portability advantages with health safety concerns
2Reliability
If external antenna is disconnected and reconnected when moving device, then antenna configuration is maintained, but user convenience deteriorates
Solution Approach 1:
The patent merges the functionality of external and internal antennas by enabling the integrated antenna to operate as a substitute when the external antenna is disconnected. The system detects disconnection status and automatically activates the internal antenna to maintain continuous wireless communication, eliminating the need for users to manually reconnect antennas while preserving configuration reliability
Solution Approach 2:
The system performs automatic detection and self-adjustment when antenna disconnection is detected. The data processing unit monitors connection status and autonomously switches between antenna modes without user intervention, allowing the device to maintain optimal configuration while improving user convenience during movement
3Object-affected harmful factors
If small-sized antenna is turned off, then electromagnetic wave exposure is reduced, but data transmission rate deteriorates
Solution Approach 1:
The patent implements dynamic adjustment of antenna transmission parameters based on real-time proximity detection. Rather than permanently disabling the antenna, the system reduces transmission power or disables the integrated antenna only when the user is detected in close proximity, while maintaining full transmission capability when the user is absent, thus balancing health safety with data transmission performance
Solution Approach 2:
The system changes operational parameters of the antenna based on detected conditions. By switching between first control mode (full transmission power for optimal data rate) and second control mode (reduced power or disabled when user is close), the patent dynamically adjusts transmission parameters to minimize electromagnetic exposure during critical periods while preserving data transmission rate during normal operation
Data Source
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AI summary
A data processing system includes a display device (100), a proximity sensor (200), a wireless data processing apparatus (300), and an external antenna (400). The display device (100) and the wireless data processing apparatus (300) are connected. The display device (100) is equipped with an internal antenna (120) indirectly connected to a wireless communication module (320) of the wireless data processing apparatus (300). The external antenna (400) is electrically connected to the wireless communication module (320). A data processing circuit (310) of the wireless data processing apparatus (300) normally controls the wireless communication module (320) to set signal transmission strengths of the antennas by using a first antenna control mode. When the proximity sensor (200) detects an object located close to proximity sensor (200), the data processing circuit (310) controls the wireless communication module (320) to set the signal transmission strengths by using a second antenna control mode that includes at least decreasing the signal transmission strength of the internal antenna (120).