Signal Transceiving Circuit Noise Reduction via Voltage Division
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Solution Overview
Problem
Current signal transceiving circuits suffer from noise interference due to shared transmission lines, requiring complex circuits and increased design and production costs to mitigate this issue.
Innovation Solution
A signal transceiving circuit utilizing a resistance circuit with a voltage transferring circuit and voltage dividing circuit to counteract noise, comprising resistors and capacitors, simplifies the design and reduces noise impact without complex circuitry.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a device is used to counteract noise caused by the output signal to the input signal, then noise is reduced, but circuit area and design complexity increase
Solution Approach 1:
The patent merges the noise counteraction function into the existing transmission line structure by using the same physical path for both signal transmission and noise cancellation. The output signal is fed back through the same cable infrastructure, eliminating the need for separate shielding or isolation circuits that would increase complexity.
Solution Approach 2:
The patent converts the harmful output signal that causes noise into a beneficial element by intentionally feeding it back through the transmission line. This fed-back output signal actively counteracts the noise it originally caused, transforming the problem into a solution mechanism.
2Object-affected harmful factors
If extra circuits are added to counteract noise, then noise is omitted, but manufacturing cost increases
Solution Approach 1:
The invention combines multiple functions (signal transmission, noise generation, and noise cancellation) into a single integrated approach using the existing cable infrastructure. This eliminates the need for additional noise-filtering components that would increase manufacturing cost.
Solution Approach 2:
The system uses its own output signal to cancel its own generated noise through self-feedback. This self-service mechanism eliminates the need for external active noise cancellation components, reducing manufacturing cost while maintaining effectiveness.
3Device complexity
If the transmitter and receiver share the same transmission line, then circuit simplicity is maintained, but noise interference occurs
Solution Approach 1:
The patent applies preliminary anti-action by intentionally introducing the output signal back into the transmission line before the noise can interfere with the input signal. This preemptive measure creates a counteracting voltage that neutralizes the harmful noise effect in advance.
Solution Approach 2:
The transmission line itself acts as an intermediary that carries both the useful input signal and the noise-canceling output signal. By using the existing cable infrastructure as the mediator, the system maintains simplicity while enabling noise cancellation without requiring separate dedicated paths.
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
The proposed solution effectively omits noise from the output signal at the receiver, reducing circuit complexity and manufacturing costs while maintaining signal integrity.
Implementation Method 1
a voltage dividing circuit, for voltage-dividing the voltage transferring signal and the output signal, such that a voltage that the output signal generates at the receiver will be counteracted with a voltage that the voltage transferred signal generates at the receiver
Data Source
AI summary
A signal transceiving circuit, comprising: a receiver, for receiving a input signal; a transmitter, for transmitting an output signal; and a resistance circuit, for omitting the noise caused by the output signal to the input signal. The resistance circuit comprises: a voltage transferring circuit, for generating a voltage transferred signal, and a voltage dividing circuit, for voltage dividing the voltage transferred signal and the output signal, such that the voltage generated at the receiver is cancelled by the voltage generated by the voltage transferred signal at the transceiver. A noise reduction circuit that can be utilized in this signal transceiving circuit is also disclosed.