Multiplexed Data Transfer Using Start-End DQS Toggling
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Solution Overview
Problem
Current data transmission protocols in electronic apparatuses consume a significant amount of power due to frequent toggling of read enable (RE) and data strobe (DQS) signals during data transmission.
Innovation Solution
A multiplexed data transmission method that minimizes power consumption by reducing the toggling of RE and DQS signals through controlled toggling at specific points during data transmission, using a first and second conductive line for RE and DQS signals, and a third conductive line for data transfer, with synchronized clock frequencies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If current data transmission protocols are used with frequent toggling of read enable and data strobe signals, then data transmission can be performed, but power consumption increases significantly
Solution Approach 1:
The patent applies periodic action by using a data strobe signal that toggles at specific periods to indicate start and end of data transmission, rather than continuous signal toggling. The read enable signal is activated periodically only when needed, creating a rhythm of signal transitions that reduces overall power consumption while maintaining data transmission capability
Solution Approach 2:
The patent merges the functions of data indication and transmission timing into a single data strobe signal. This signal simultaneously indicates when data is valid and when transmission starts/ends, eliminating the need for separate continuous control signals and reducing the total number of signal transitions that consume power
2Loss of energy
If read enable and data strobe signals are toggled frequently during data transmission, then data can be transmitted continuously, but energy is wasted
Solution Approach 1:
The data strobe signal is designed to toggle periodically only at critical moments (start and end of transmission) rather than continuously during the entire transmission process. This periodic toggling maintains data transmission continuity while minimizing the duration of high-energy signal states
Solution Approach 2:
The patent extracts the essential timing function from continuous signal toggling and concentrates it into discrete toggle events at the beginning and end of data transmission. This extraction removes unnecessary continuous signal activity that would cause energy waste while preserving the essential timing control needed for continuous transmission
Data Source
AI summary
The present disclosure relates to a method for transmitting data between a first entity and a second entity, and a method for operating an electronic apparatus may include a method for operating an electronic apparatus, including: transmitting a first read enable signal indicating being ready to receive data to an external device; receiving a first data strobe signal indicating start of data transmission and a first data from the external device; receiving subsequent data after the first data from the external device; and receiving a second data strobe signal indicating end of the data transmission and a last data from the external device.