Dual Transceiver Mobile Device Reducing Head Radiation Exposure
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Solution Overview
Problem
Mobile communication devices, such as cellular telephones, pose health concerns due to radiated electromagnetic fields affecting the brain and other vulnerable body parts, with existing solutions like shielding and increased distance being inadequate in reducing radiation exposure while maintaining performance.
Innovation Solution
A system comprising a first transceiver on the upper body and a second transceiver on the lower body, connected via low-power short-range communication, boosts signal strength to permissible SAR levels for long-range transmission, effectively reducing radiation exposure at the upper body by redirecting RF communication signals to the lower extremities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If shielding devices are used to reduce radiation, then radiation exposure is reduced, but antenna reception is adversely affected leading to increased energy absorption
Solution Approach 1:
The patent extracts the antenna function from the mobile device itself and relocates it to a separate wearable device (earpiece, neckwear, or footwear). This separation allows the main mobile device to operate without being in direct contact with the user's head, thereby reducing radiation exposure to the brain while maintaining communication functionality through the remotely positioned antenna in the wearable device.
2Object-affected harmful factors
If distance between antenna and user body is increased, then radiation absorption is reduced, but device portability and usability are compromised
Solution Approach 1:
The patent segments the communication system into two distinct components: the main mobile device and a separate wearable antenna device. This segmentation allows the antenna to be positioned at a distance from the user's head (reducing radiation absorption) while still being conveniently worn on the body. The wearable device acts as an independent unit that maintains communication functionality without requiring the main device to be held near the head.
3Power
If mobile device transmits high-power signals, then communication range and quality are improved, but radiation exposure to the upper body increases
Solution Approach 1:
The patent introduces a wearable device with its own antenna as an intermediary between the mobile device and the user's body. The mobile device transmits high-power signals to the wearable device, which then retransmits or relays the signals using its antenna positioned away from the user's head. This intermediary arrangement allows high-power transmission to be maintained for communication quality while the actual radiation exposure to the user's upper body is reduced because the antenna is not in direct contact with the head.
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 configuration significantly decreases radiation absorption at the head, allowing safer use of mobile devices while enhancing power and functionality, including increased transmitting power and advanced features like power management and alarm systems.
Implementation Method 1
The first transceiver is configured to establish RF communication with the second transceiver using low-power, short-range RF communication signals
Implementation Method 2
the second transceiver is configured to boost a signal strength of the short-range RF communication signals to high-power, long-range communication signals
Implementation Method 3
the second transceiver is configured to boost a signal strength of the short-range RF communication signals to high-power, long-range communication signals that are up to or above permissible specific absorption rate (SAR) levels as established by the Federal Communication Commission (FCC) and then to retransmit the long-range RF communication signals to a wide area network
Data Source
AI summary
A system of mobile devices that reduces the transmission strength of outgoing signals originating from a handheld device, and sends such signals to a second device, situated near or on a lower-body location, where the signals may be amplified to the current permitted maximum transmission strength vis-a-vis the brain (SAR), or above that level to the greater maximum strength permitted in the areas of, e.g., the feet and ankles, where the signal is then sent outward. The devices divert radio frequency (RF) radiation exposure downward toward the lower extremities. The intelligence and power of the devices may be split between two or more devices, resulting in longer use time, deeper and more complex computing capability, and fewer disruptions due to power. In addition, a benefit in one or more embodiments is better, more reliable reception, due to the use of two or more coordinated receiving antennas.