Parallel Preprocessing Circuit for Wiring Adaptability
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Solution Overview
Problem
Conventional received data compensating devices are limited in their ability to adapt to various wiring configurations and transmission media, leading to reduced wiring performance and increased development and management costs due to the need for multiple ICs and apparatus formats.
Innovation Solution
A received data compensating device with multiple preprocessing units having different filtering and sampling functions, along with check units and buffer units, allows for parallel processing and selection of data based on reliability checks, enabling adaptation to diverse transmission lines and media with a single device specification.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a filtering circuit with fixed characteristics is used, then the device structure is simple, but the adaptability to various wiring configurations and transmission media is reduced
Solution Approach 1:
The filtering circuit is divided into multiple independent filter units (first filtering circuit 11, second filtering circuit 12, third filtering circuit 13) with different characteristics. Each filter unit can be independently selected and activated based on the specific transmission line conditions, allowing the system to adapt to various wiring configurations and transmission media without requiring a completely different device structure.
Solution Approach 2:
The receiving device is designed with multiple filter units that can handle different transmission scenarios (digichain, multidrop, branch, and star configurations). By incorporating filtering circuits with different characteristics into a single device, the system achieves multi-functionality and can adapt to various wiring configurations and transmission media without needing multiple specialized devices.
2Reliability
If multiple ICs and apparatus formats are prepared for different cable and wiring configurations, then the wiring performance is enhanced, but the development and management costs are increased
Solution Approach 1:
Multiple filtering circuits with different characteristics are merged into a single receiving device. The first filtering circuit 11, second filtering circuit 12, and third filtering circuit 13 are integrated together with their respective check units and buffer units, allowing the system to achieve the reliability of multiple specialized devices while reducing development and management costs through a unified platform.
Solution Approach 2:
A single receiving device is designed to perform multiple functions by incorporating different filtering circuits for various wiring configurations. This universal design eliminates the need to prepare multiple ICs and apparatus formats for different cable types, thereby maintaining high wiring performance while significantly reducing development and management costs.
3Device complexity
If a single filtering circuit is used for all configurations, then the device complexity is reduced, but the communication wiring specification is more reduced
Solution Approach 1:
The system dynamically selects which filtering circuit to use based on the detected wiring configuration and transmission media characteristics. The data selector 24 monitors check results from multiple check units and dynamically switches between different buffer units containing data processed by different filtering circuits, allowing the device to adapt to various communication wiring specifications while maintaining a unified device structure.
Solution Approach 2:
The system changes the operational parameters by selecting different filtering circuits with different characteristics based on the transmission line conditions. Each filtering circuit is optimized for specific wiring configurations (e.g., digichain, multidrop, branch, star), and the system adjusts which circuit is active based on the detected parameters of the communication line, thereby achieving adaptability without increasing device complexity.
Data Source
AI summary
Provided is a compensating device for a received data can be used in a wide application by a single apparatus for various wiring configurations and transmission media. The compensating device provided between a receiver circuit in a physical layer and a processing device utilizing the received data and including a plurality of preprocessing units provided in parallel with each other on an output side of the receiver circuit and each having a filtering function and a sampling function which have different characteristics from each other, a plurality of check units each provided in a next stage of the preprocessing unit and serving to execute a reliability check of the received data in accordance with a frame format of a protocol, a plurality of buffer units each provided in the next stage of the check unit and serving to store the data processed by the check unit, and a data selector for monitoring check results in the check units and selecting and outputting the data of the buffer units having a check result of OK.