Polarity Detection Unit for Reverse Connection in Signal Transmission
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Solution Overview
Problem
Existing connector technologies do not support reverse connection without adding a reverse connection detection lane, which can lead to circuit scale expansion and restrictiveness in signal transmission, especially for non-differential signals like optical signals.
Innovation Solution
A transmission/reception control system that includes a polarity detection unit to determine the polarity of received signals and a reception control unit to control output destinations based on the polarity determination, allowing reverse connection without a dedicated detection lane and supporting non-differential signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a reverse connection detection lane is added to support reverse connection, then reverse connection capability is improved, but circuit scale expands
Solution Approach 1:
The existing data transmission lanes are made to serve dual purposes: both data transmission and reverse connection detection. By encoding reverse connection detection information within the data transmission signals themselves, the patent eliminates the need for dedicated detection lanes, thus maintaining circuit scale while achieving reverse connection capability
Solution Approach 2:
The patent merges the reverse connection detection function with the data transmission function by using the same physical lanes for both purposes. The detection information is embedded within the data signals, combining two previously separate functions into a single integrated system
2Device complexity
If polarity inversion detection is used to support reverse connection without adding detection lane, then circuit scale is suppressed, but the technology is restricted to differential signals
Solution Approach 1:
The patent creates a universal reverse connection detection method that works with both differential and non-differential signals. By using predetermined patterns that can be transmitted through any signal type and detecting their presence or absence, the system achieves signal-type independence while maintaining circuit scale
Solution Approach 2:
The patent changes the detection parameter from signal polarity (which requires differential signals) to signal presence/absence of predetermined patterns. This parameter change allows the detection method to work with any signal type including non-differential signals like optical signals
Data Source
AI summary
It is desirable to provide a technology capable of supporting reverse connection in which the front and back of a connector are reversed while expansion of circuit scale is suppressed. A reception control device is provided including a polarity detection unit that detects, as a polarity determination result signal, at least one of a polarity of a first reception signal received by a first reception unit or a polarity of a polarity inversion result of a second reception signal received by a second reception unit and a reception control unit that controls output destinations of a third reception signal received after the first reception signal by the first reception unit and a fourth reception signal received after the second reception signal by the second reception unit, on the basis of the polarity determination result signal.