Receiver Circuit Adaptation for Varying Data Packet Formats
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Solution Overview
Problem
Existing communication protocols face challenges in achieving ultra-low power consumption, especially in stand-by modes, and efficient data packet handling due to varying address field lengths, which complicates multiplexing logic and energy management in receiver circuits.
Innovation Solution
A receiver circuit design that utilizes shift registers and a switching circuit to adapt to different data packet formats, allowing for efficient storage and processing of data packets with varying lengths by selectively connecting serial data signals based on a selection signal, and includes verification circuits for address and error checking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the receiver circuit supports multiple data packet formats with varying address field lengths, then the adaptability and versatility of the receiver is improved, but the device complexity and multiplexing logic become more complicated
Solution Approach 1:
The receiver circuit is designed to handle multiple data packet formats (first format with shorter address field, second format with longer address field) using a unified receiver structure. The same receiver circuit can process both formats by selectively connecting to different shift register inputs based on the packet format type, eliminating the need for separate dedicated circuits for each format and thereby reducing overall device complexity while maintaining versatility.
Solution Approach 2:
The receiver circuit is divided into functional segments: a first shift register for receiving the first data packet format, a second shift register for receiving the second data packet format, and a switching circuit to select between them. This segmentation allows each component to be optimized for its specific function while the overall system maintains the ability to handle multiple formats efficiently without excessive complexity.
2Use of energy by moving object
If the receiver circuit operates in stand-by mode to reduce power consumption, then the energy efficiency is improved, but the data packet handling capability may be limited
Solution Approach 1:
The receiver circuit can operate in a periodic manner, alternating between stand-by mode (low power consumption) and active data reception mode. When data packets are transmitted, the receiver activates the appropriate shift register and switching circuit to process the packets. This periodic operation allows the system to maintain data handling capability when needed while achieving ultra-low power consumption during stand-by periods, resolving the contradiction between energy efficiency and productivity.
3Device complexity
If the receiver circuit uses fixed shift register positions for data storage, then the digital processing is simplified, but the ability to handle varying packet formats becomes more difficult
Solution Approach 1:
The receiver circuit employs dynamic positioning of shift register inputs based on the selected data packet format. For the first data packet format, the first shift register receives data at its first input position. For the second data packet format, the second shift register receives data at its second input position. This dynamic adaptation allows the circuit to handle varying packet formats while maintaining simple fixed-position storage within each register, thereby resolving the contradiction between processing simplicity and format adaptability.
Data Source
AI summary
A receiver circuit extracts data from a serial data signal. The serial data signal contains a data packet having a first format with a first number of bits or a second format with a second number of bits based on a selection signal. The second format comprises the bits of the first format followed by one or more additional bits. The receiver circuit has at least one shift register having a total number of bits equal or greater than the number of bits of the second format and a switching circuit that selectively connects the serial data signal to one of the shift register serial inputs as a function of the selection signal. When the first format is selected and the respective bits received, the bits are stored in given positions of the one or more shift registers. The switching circuit also, when the second format is selected and the respective bits received, stores the bits of the first format included at the beginning of the second format in the same given positions of the one or more shift registers.