Inductive Coupling Echo Noise Cancellation for SSD Data Transfer
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Solution Overview
Problem
Conventional inductive coupling techniques are unable to perform interactive communication over a single channel due to ineffective elimination of echo noise, which limits effective bandwidth and requires timing control, preventing simultaneous data transmission and reception.
Innovation Solution
A data transmitting and receiving apparatus and method that utilize a coil for inductive coupling, generating a compensation signal to extract reception data from a sensing signal, allowing for simultaneous data transmission and reception through one channel by removing echo noise.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional inductive coupling techniques are used for data transmission, then data can be transmitted contactlessly, but echo noise cannot be effectively eliminated preventing simultaneous reception
Solution Approach 1:
The patent creates a replica signal that copies the transmission signal characteristics, then uses this replica to generate a compensation signal that reproduces the echo noise. By copying the echo characteristics and subtracting them from the received signal, the system eliminates echo noise and enables simultaneous data reception during transmission.
2Ease of operation
If timing control is used to manage echo noise in inductive coupling, then data communication can be maintained, but effective bandwidth is narrowed and simultaneous communication is prevented
Solution Approach 1:
The patent enables continuous simultaneous transmission and reception by eliminating the need for timing-based half-duplex operation. The compensation signal continuously cancels echo noise during the entire transmission period, allowing the communication channel to operate at full bandwidth without timing interruptions or alternating transmit/receive phases.
3Device complexity
If a single channel is used for inductive coupling communication, then device complexity is reduced, but interactive communication cannot be performed simultaneously in both directions
Solution Approach 1:
The patent makes the single inductive coupling channel universal by enabling it to simultaneously perform both transmission and reception functions. The compensation signal mechanism allows the same physical channel to handle bidirectional interactive communication without requiring separate dedicated channels for each direction, thus achieving multi-functionality with a single channel.
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 high data transfer rates and effective bandwidth by allowing simultaneous data transmission and reception, overcoming the limitations of conventional inductive coupling techniques.
Implementation Method 1
a coil configured to transmit and receive data through inductive coupling
Implementation Method 2
a coil configured to transmit and receive data through inductive coupling
Data Source
AI summary
A data transmitting and receiving apparatus includes a coil configured to transmit and receive data through inductive coupling, where a voltage drop across the coil constitutes a sensing signal. The apparatus further includes an input unit configured to generate transmission data and a replica signal in accordance with an input data signal, the transmission data being supplied to the coil. The apparatus still further includes a replica unit configured to generate a compensation signal in accordance with the replica signal, and an output unit configured to extract reception data from the sensing signal using the compensation signal.