Wireless Power Pocket Focusing for Wearables
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Solution Overview
Problem
Current wireless power transmission methods are inefficient and inconvenient for portable electronic devices, as they often require extra batteries, plugs, and are affected by distance and interference, leading to variable power reception and frequent charging needs.
Innovation Solution
A wireless receiver system that integrates antenna elements and a rectifier to capture and convert power transmission waves into electrical current, allowing for wireless charging of devices without wires, using a transmitter that creates a three-dimensional pocket of energy and communicates with receivers to optimize power transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If electromagnetic signal transmission power is boosted to increase received power at large distance, then received signal power is improved, but energy waste increases and harmful effects on living tissue and electronic devices occur
Solution Approach 1:
The patent applies local quality by creating concentrated energy pockets at specific receiver locations rather than broadcasting energy uniformly throughout space. The transmitter adjusts phase and amplitude of signals from different antenna elements to focus energy precisely where receivers are located, improving received power locally while minimizing widespread harmful effects.
Solution Approach 2:
The patent replaces traditional mechanical plug-and-charge systems with wireless energy transmission. By using electromagnetic fields to transfer power without physical contact, the system eliminates the need for plugging devices into outlets or carrying chargers, significantly improving ease of operation.
2Loss of energy
If directional power transmission is used to enhance power transmission efficiency, then power transmission efficiency is improved, but device location detection complexity increases
Solution Approach 1:
The patent implements feedback by having receivers send their location information back to the transmitter. The transmitter uses this feedback to adjust the phase and amplitude of transmitted signals, enabling directional power transmission that adapts to receiver positions and maximizes transmission efficiency.
Solution Approach 2:
The patent applies universality by using the same communication channel for both location detection and power transmission control. The system simultaneously performs multiple functions: detecting receiver locations, calculating optimal transmission parameters, and directing power transmission, all through integrated communication and control mechanisms.
3Ease of operation
If wireless power transmission is implemented without location awareness, then ease of operation is improved, but power transmission reliability decreases
Solution Approach 1:
The patent applies preliminary action by having the transmitter continuously scan for receivers and pre-calculate optimal transmission parameters before power transmission begins. The system proactively identifies receiver locations and prepares directed energy transmission, ensuring reliable power delivery without requiring users to manually configure settings.
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 efficient and convenient wireless power transmission to portable devices, reducing the need for frequent charging and extra batteries, while maintaining device mobility and minimizing environmental waste.
Implementation Method 1
one or more antenna elements configured to extract energy from one or more power transmission waves establishing a pocket of energy, and further configured to convert the energy of the power transmission waves to an electrical current
Implementation Method 2
a rectifier configured to convert the electrical current produced from the antenna elements from an alternating current (AC) to a direct current (DC)
Data Source
AI summary
Embodiments disclosed herein relate to various arrangements of hardware for incorporating receiver functions into wearable portable devices. The embodiments described herein include a transmitter that transmits a power transmission signal (e.g., RF signal waves) to create a three-dimensional pocket of energy. At least one receiver can be connected to or integrated into electronic devices and receive power from the pocket of energy. The transmitter can locate the at least one receiver in a three-dimensional space using a communication medium. The transmitter generates a waveform to create a pocket of energy around each of the at least one receiver. The transmitter uses an algorithm to direct, focus, and control the waveform in three dimensions. The receiver can convert the transmission signals into electricity for powering an electronic device. The embodiments for wireless power transmission can allow powering and charging a plurality of electrical devices without wires.