Transmission Device Dynamic Voltage Emphasis for High-Speed Interfaces
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Solution Overview
Problem
Existing communication systems face challenges in enhancing communication performance, particularly in high-speed interfaces where data transmission and reception occur at several Gbps, and there is a need for further improvement in communication performance.
Innovation Solution
A transmission device and communication system that utilize a driver unit to transmit data signals using three voltage states (first, second, and third voltage states) with the third voltage state being changeable, and a controller to adjust the voltage in the third state to perform emphasis, thereby enhancing communication performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional two-voltage state transmission is used, then device complexity is low, but communication performance is insufficient for high-speed interfaces
Solution Approach 1:
The patent implements dynamic voltage adjustment by making the third voltage state changeable through a controller that modifies the voltage level based on transmission requirements. This dynamic approach allows the system to adapt to different communication conditions and optimize performance without permanently increasing structural complexity
Solution Approach 2:
The patent changes the voltage parameter by introducing a third voltage state that can be dynamically adjusted. The controller modifies the voltage level in the third state to perform emphasis, transforming a static two-state system into a flexible three-state system with variable parameters that can be tuned for optimal communication performance
2Reliability
If emphasis is performed by adding complex circuitry, then communication performance improves, but device complexity increases
Solution Approach 1:
The third voltage state serves multiple functions: it provides emphasis capability, enables adaptive transmission, and maintains compatibility with existing two-state protocols. This multi-functional approach allows a single voltage state to perform various roles rather than requiring separate dedicated circuits for each function
Solution Approach 2:
Instead of adding complex circuitry, the patent achieves emphasis by changing the voltage parameter in the third state. The controller adjusts the voltage level to provide the necessary emphasis effect, replacing hardware complexity with parameter control and software-based management
Data Source
AI summary
A transmission device of the present disclosure includes: a driver unit that transmits a data signal with use of a first voltage state, a second voltage state, and a third voltage state interposed between the first voltage state and the second voltage state, and is configured to make a voltage in the third voltage state changeable; and a controller that changes the voltage in the third voltage state to cause the driver unit to perform emphasis.