Data Reception Circuit Eliminates Stacked Transistors for High Speed Transmission
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Solution Overview
Problem
Existing data transmission circuits between devices with different power supplies suffer from signal delay and data errors due to the use of stacked transistors for analog logic processing, especially in low power supply situations, leading to low data rates and potential circuit damage.
Innovation Solution
A data reception circuit that removes reliance on stacked transistors by using trigger elements and switches to control signal provision, along with a blocking feedback circuit to prevent data overlap, allowing for faster data translation and reduced leakage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If stacked transistors are used for analog logic processing in data transmission circuits, then data transmission between devices with different power supplies is enabled, but signal delay increases and data rate decreases
Solution Approach 1:
The patent extracts and removes the analog logic processing function from the stacked transistor circuit. By eliminating the analog logic processing stage that caused signal delay, the invention directly transmits digital signals between devices with different power supplies, achieving both compatibility and high speed data transmission.
2Adaptability or versatility
If stacked transistors are used for analog logic processing, then data translation between different voltage levels is achieved, but processing delay increases especially in low power supply situations
Solution Approach 1:
The patent replaces the mechanical analog logic processing system with a direct digital signal transmission approach. By using digital signaling with level shifters instead of analog transistor stacking, the invention eliminates the inherent processing delay of analog circuits while maintaining voltage level translation capability.
3Speed
If high data rate transmission is implemented, then data transmission speed improves, but data errors and circuit damage risk increase due to data changes during signal processing
Solution Approach 1:
The patent implements preliminary action by using blocking feedback circuits that prevent data changes during the transmission process. The feedback mechanism proactively blocks the transmitting device from sending new data until the current data transmission is complete, eliminating the risk of data errors and circuit damage from simultaneous data changes.
4Adaptability or versatility
If analog logic circuits are used for data translation, then data transmission between different power supplies is enabled, but circuit complexity and cost increase
Solution Approach 1:
The patent extracts the complex analog logic processing stage from the circuit and replaces it with simpler digital signaling components. By removing the stacked transistor analog logic structure and using direct digital transmission with level shifters, the invention reduces circuit complexity and cost while maintaining cross-power supply communication capability.
Data Source
AI summary
A data reception circuit removes reliance on stacked transistors providing analog logic processing. A first trigger element outputs an up signal in response to receiving an indication of receipt of a data signal by a receiving device without consideration of an output signal from the receiving device. A second trigger element outputs a down signal in response to receiving an indication of receipt of a data signal by a receiving device without consideration of an output signal from the receiving device. Switches control provision of signals to a received signal line for the receiving device in response to the outputs of the trigger elements. A blocking feedback circuit provides a blocking signal for the receiving device to effect blocking the receiving device from sending data to the sending device when the receiving device is receiving data from the sending device.