Transmit Power Manager Sensor Proximity Control
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Solution Overview
Problem
Electronic devices lack the ability to control their transmit power levels, leading to potential radiation exposure to users and non-compliance with FCC regulations regarding specific absorption rate (SAR), especially when connected to multiple wireless communication infrastructures, which can cause interference and reduce connection quality.
Innovation Solution
Incorporating a transmit power manager that uses sensors to detect human proximity and adjust transmit power levels dynamically, based on algorithms that consider past power usage, signal strength, and other conditions to minimize radiation exposure and interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If electronic devices use higher transmit power levels to maintain wireless connections, then connection reliability is improved, but user exposure to radiation increases and SAR compliance becomes difficult
Solution Approach 1:
The patent implements dynamic transmit power adjustment by continuously monitoring sensor data (proximity sensors, touch sensors, temperature sensors) and adapting power levels in real-time. The system transitions from static power levels dictated by infrastructure to dynamic user-controlled power management, adjusting transmit power based on actual user presence and device conditions.
Solution Approach 2:
The system employs feedback loops where sensor inputs (proximity, touch, temperature) are continuously monitored and fed back to the transmit power manager. This feedback mechanism enables the system to automatically adjust transmit power levels based on real-time conditions, ensuring both connection reliability and reduced radiation exposure when users are present.
2Device complexity
If electronic devices lack transmit power management capability, then device complexity is reduced, but ability to control radiation exposure and ensure SAR compliance is lost
Solution Approach 1:
The transmit power manager operates autonomously by self-monitoring sensor conditions and self-adjusting power levels without requiring external control infrastructure. The system serves itself by making intelligent decisions about power management based on embedded sensor data, eliminating the need for complex external power control systems while maintaining SAR compliance.
Solution Approach 2:
The transmit power manager integrates multiple functions into a single component: it monitors proximity sensors, touch sensors, temperature sensors, manages wireless connections, and controls power levels across multiple infrastructures simultaneously. This multi-functional approach consolidates complexity into a universal power management system rather than requiring separate control mechanisms for each function.
3Adaptability or versatility
If electronic devices connect to multiple wireless communication infrastructures concurrently, then communication versatility is improved, but radiation exposure increases and connection interference occurs
Solution Approach 1:
The system dynamically changes power level parameters across multiple wireless infrastructures based on sensor feedback. When user presence is detected, the transmit power manager adjusts power levels for all concurrent connections simultaneously, reducing radiation exposure and minimizing interference between infrastructures while maintaining connection versatility.
Data Source
AI summary
A user device transmits data at a first transmit power level. The user device detects a presence of a human body part within a predetermined distance from an antenna of the user device using one or more sensors disposed at a back side of the user device. In response to the detection of the presence of the human body part, the user device transmits information at a second transmit power level that is less than the first transmit power level.