Bidirectional Data Transmission Using Voltage Difference Detection
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Solution Overview
Problem
Existing data transmission technologies face challenges in achieving bidirectional data transmission efficiently without requiring new hardware designs, as upgrading I/O ports to support faster data transfer is costly and limited to new devices, necessitating an alternative method to enhance transmission efficiency using old designs.
Innovation Solution
A bidirectional data transmission system that utilizes a single transmission line for both forward and backward data transmission, employing a forward data transmission circuit and a backward data transmission circuit with a logic circuit to detect voltage differences over a resistance element, allowing data to be transmitted regardless of the input signal's voltage level, using a reference voltage and switch to generate output signals based on threshold values.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If new I/O ports with multiple differential data transmission lines are designed to support faster data transmission, then data transmission speed is improved, but hardware cost and device complexity increase
Solution Approach 1:
The patent makes a single differential data transmission line capable of performing multiple functions by enabling bidirectional communication. The transmission line can transmit data in both forward and backward directions by detecting voltage differences, allowing one physical channel to replace what would traditionally require separate transmit and receive channels, thus improving speed without increasing hardware complexity
Solution Approach 2:
The patent changes the operational parameters of the existing transmission line by utilizing voltage difference detection to enable bidirectional communication. By monitoring whether the voltage difference exceeds a threshold value, the system dynamically determines transmission direction, allowing the same hardware to operate in different modes without physical modification
2Adaptability or versatility
If new I/O ports are designed to support bidirectional data transmission, then communication flexibility is improved, but manufacturing cost increases and old devices cannot be upgraded
Solution Approach 1:
The patent enables existing unidirectional I/O ports to perform bidirectional communication by implementing voltage difference detection logic. This allows old devices to gain upgrade capabilities without hardware replacement, as the same physical transmission line can carry data in both directions through intelligent signal detection and processing
Solution Approach 2:
The patent creates a logical copy of the transmission capability by using voltage difference detection to simulate a second transmission channel. Instead of physically duplicating hardware, the system creates a virtual bidirectional pathway through intelligent signal interpretation, allowing old devices to achieve new functionality without manufacturing upgrades
3Device complexity
If a single transmission line is used for bidirectional data transmission, then hardware cost is reduced, but signal detection complexity increases
Solution Approach 1:
The patent replaces complex mechanical or hardware-based bidirectional switching mechanisms with an electrical field-based detection system. By using voltage difference detection instead of physical switches or relays, the system achieves bidirectional control through electrical field sensing, simplifying the overall hardware while managing detection complexity through threshold-based logic
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 bidirectional data transmission without the need for new hardware, maintaining data integrity and speed by using existing infrastructure, ensuring reliable communication regardless of the input signal's voltage level.
Implementation Method 1
a logic circuit to detect a voltage difference over a resistance element in the forward data transmission circuit
Data Source
AI summary
A system for bidirectional signal transmission may comprise a forward data transmission circuit to unidirectionally transmit a first input signal and a backward data transmission circuit to unidirectionally transmit a second input signal. The backward data transmission circuit may comprises a logic circuit to detect a voltage difference over a resistance element in the forward data transmission circuit. When the voltage difference is lower than a threshold value, the logic circuit outputs a first voltage level. When the voltage difference is greater than or equal to a threshold value, the logic circuit outputs a second voltage level different from the first voltage level.