Bidirectional Data Transmission Pin Reconfiguration
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Solution Overview
Problem
Conventional data transmission systems between electronic apparatuses require fixed directional connections, limiting flexibility and increasing manufacturing costs with additional pins for reverse direction connections.
Innovation Solution
A data transmission system that uses detection signals to determine connection direction between electronic apparatuses with clock and data pins, allowing for flexible forward and reverse direction connections by switching pin functions based on signal variations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional connection interfaces use fixed directional connections with corresponding pins, then data transmission can be implemented reliably, but user convenience deteriorates due to the requirement of fixed connection orientation
Solution Approach 1:
The connection interface dynamically adapts its pin functions based on detected connection orientation. The system transitions from static pin assignments to dynamic pin reconfiguration, allowing the same physical pins to serve different logical functions depending on whether the connection is in forward or reverse direction, thereby enabling convenient multi-directional connection without compromising transmission reliability
Solution Approach 2:
The system changes the functional parameters of the connection pins based on detected connection orientation. By detecting signal variations on clock and data pins, the system identifies connection direction and reconfigures pin functions accordingly, allowing reliable data transmission in both forward and reverse connection directions using the same physical interface
2Adaptability or versatility
If additional pins are increased to support reverse direction data transmission, then multi-directional connection capability is improved, but manufacturing cost increases
Solution Approach 1:
The connection interface achieves multi-directional capability using the same set of pins for both forward and reverse connections. By making the pins universal and reconfigurable based on connection orientation detection, the system eliminates the need for additional pins or separate connection interfaces, thereby reducing manufacturing complexity and cost while maintaining adaptability for bidirectional connections
Solution Approach 2:
The system inverts the traditional approach by using the same pin configuration for reverse direction connections as for forward direction. Instead of adding separate pins for reverse connection, the system detects reverse connection orientation and swaps the functional roles of existing pins, enabling cost-effective multi-directional connectivity without increasing pin count
3Reliability
If pin positions are made corresponding for data transmission, then data communication is achieved, but connection flexibility deteriorates due to fixed orientation requirement
Solution Approach 1:
The pin function assignment transitions from static to dynamic based on connection detection. The system maintains reliable data communication by adapting pin roles in real-time according to detected connection orientation, allowing the same physical pin positions to serve different communication functions in forward versus reverse connections
Solution Approach 2:
The system changes the functional parameters of connection pins based on detected orientation. By monitoring signal characteristics on clock and data pins, the system identifies connection direction and reconfigures pin functions accordingly, maintaining reliable communication while increasing adaptability to different connection orientations
Data Source
AI summary
A data transmission system and a transmission method thereof are provided. The data transmission system includes a first electronic apparatus and a second electronic apparatus. The first electronic apparatus includes a first clock pin and a first data pin. The second electronic apparatus includes a second clock pin and a second data pin. In a connecting detection mode, the first electronic apparatus transmits a first detection signal to the first clock pin and drives the first data pin to a reference logic level. The second electronic apparatus transmits a second detection signal to the second clock pin and drives the second data pin to the reference logic level. The first electronic apparatus determines whether the first and the second electronic apparatuses are connected to each other according to whether at least one of signals on the first clock pin and on the first data pin is varied or not.