Communication System Noise Suppression Time-Division Multiplexing
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Solution Overview
Problem
Existing time-division multiplexing transmission systems face limitations in high-speed data transmission reliability due to noise interference and unsuitable communication periods, making them inefficient for transmitting large volumes of data.
Innovation Solution
A communication system that shares a signal line with a time-division multiplexing transmission system, using a second protocol to superimpose packets on the transmission signal only when conditions are suitable, analyzed by a first protocol analysis means, to minimize noise interference and avoid communication collisions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If voice signal is superimposed only during stable carrier periods to avoid noise, then noise interference is reduced, but communication period becomes extremely short reducing transmission efficiency
Solution Approach 1:
The patent changes the parameter of communication timing from 'only stable periods' to 'including transient periods with noise suppression'. By modifying when communication can occur (parameter change) and introducing noise suppression mechanisms during transient periods, the system extends the communication window while maintaining reliability, thus resolving the contradiction between reliability and transmission efficiency.
Solution Approach 2:
The patent converts the harmful noise during transient periods into a manageable condition by introducing noise suppression mechanisms. Instead of completely avoiding transient periods (which would limit communication time), the system suppresses the harmful noise effects and allows communication during these periods, thereby transforming a previously harmful condition into an opportunity for extended communication windows and improved transmission efficiency.
2Productivity
If communication is performed during unsuitable transmission periods, then transmission efficiency improves, but noise interference increases reducing reliability
Solution Approach 1:
The patent introduces noise suppression mechanisms as an intermediary between the communication signal and the noisy transient periods. This intermediary component filters or suppresses the harmful noise while allowing the communication signal to pass through, enabling reliable communication during previously unsuitable periods and thus resolving the contradiction between transmission efficiency and reliability.
3Device complexity
If polling system is used for time-division multiplexing, then device complexity is reduced, but communication speed becomes comparatively low
Solution Approach 1:
The patent utilizes the periodic nature of the polling system's carrier signals and transforms it by allowing communication during both stable and transient periods within each polling cycle. By effectively utilizing the entire polling cycle including previously unusable transient periods, the system increases communication speed while maintaining the simple periodic polling structure, thus resolving the contradiction between device complexity and communication speed.
Data Source
AI summary
A communication device 1 has a first protocol analysis section 11 that analyzes a status of a transmission signal Vs received at a transmission signal receiver 10. A transmission controller 14 determines a communication available period and a communication unavailable period based upon the analysis result. When the communication available period is determined, the transmission controller 14 allows a second protocol signal transmitter 12 to transmit a packet in accordance with a second protocol to a signal line Ls. With this result, it is possible to transmit a relatively large amount of data while suppressing noise influence caused by a varying condition of a carrier, in contrast to a prior system in which the transmission signal is superimposed only by a simple determination of the carrier condition. Thus, it is possible to share the signal line Ls with the time-division multiplexing transmission system and improve reliability of data transmission.