Wireless Power Receiver In-Band Virtualized Wired Communications
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Solution Overview
Problem
Current wireless power transfer systems face limitations in data communication speed and compatibility, with in-band communications often operating at slow data rates and using protocols not suitable for device-related data transmission, necessitating a wired connection for faster data transfer.
Innovation Solution
A wireless power transfer system that utilizes buffered communication methods and encoding data into the wireless power signal to simulate two-way data transfer over a single inductive connection, enabling faster data transfer and compatibility with legacy protocols through virtual serial or UART data communications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If in-band communications are used for data transfer in wireless power systems, then wireless power transfer can be achieved, but data communication speed is limited to slow rates (1-3 kilobytes per second)
Solution Approach 1:
The patent segments the communication channel by separating power transfer and data communication functions. Data is transmitted through the power delivery channel using encoded signals within the power transmission waveform, allowing simultaneous power transfer and high-speed data communication without interfering with each other
Solution Approach 2:
The patent makes the power delivery channel multi-functional by enabling it to carry both power transmission and high-speed data communication. The same wireless channel used for power transfer is also utilized for data transmission through encoding techniques, eliminating the need for separate communication hardware
2Adaptability or versatility
If in-band communications protocols are used, then wireless power transfer communication can be established, but the protocols are not suitable for device-related data transmission
Solution Approach 1:
The patent changes the parameters of the power transmission waveform to encode data. By modulating characteristics such as frequency, amplitude, or phase of the power signal, the system can transmit both power and device-related data using the same channel, making the communication suitable for various data types
3Speed
If wired connection is used for faster data transfer, then data communication speed improves, but the system complexity and connection requirements increase
Solution Approach 1:
The patent merges the power delivery function and data communication function into a single wireless channel. By combining these two functions that were previously separate (power via inductive coupling, data via wired connection), the system achieves high-speed data transfer without requiring additional physical connections or increasing system complexity
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 approach allows for higher speed data communications, eliminating the need for wired connections while maintaining interoperability with legacy systems, and enabling faster data transfer during wireless power transfer.
Implementation Method 1
inductive wireless power transfer, which occurs when magnetic fields created by a transmitting element induce an electric field, and hence, an electric current, in a receiving element
Data Source
AI summary
Wireless power transfer systems, disclosed, include a wireless power transmission system and a wireless power receiver system. The wireless power transmission system includes a transmitter antenna configured to couple with a receiver antenna to transmit alternating current (AC) wireless signals to the receiver antenna. Antenna coupling may be inductive and may operate in conformance to a wireless power and data transfer protocol. A transmission controller drives the transmitter antenna at an operating frequency, and either the wireless power transmission system or the wireless power receiver system may damp the wireless power transmission to create a data signal containing a serial asynchronous data signal.